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-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/default.nix233
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/fetch.sh2
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0001-qtbase-mkspecs-mac.patch387
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0002-qtbase-mac.patch116
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0003-qtbase-mkspecs.patch491
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0004-qtbase-replace-libdir.patch68
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0005-qtbase-cmake.patch194
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0006-qtbase-gtk3.patch48
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0007-qtbase-xcursor.patch29
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0008-qtbase-xcompose.patch30
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0009-qtbase-tzdir.patch51
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0010-qtbase-qtpluginpath.patch32
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0011-qtbase-assert.patch32
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0012-fix-header_module.patch25
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0013-define-kiosurfacesuccess.patch16
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0014-qtbase-pkg-config.patch14
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0015-qtbase-tbd-frameworks.patch15
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtdeclarative.patch33
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtlocation-gcc-9.patch21
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtscript.patch13
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtserialport.patch22
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qttools.patch15
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebengine-darwin-fix-failed-static-assertion.patch31
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebengine-darwin-no-platform-check.patch69
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebengine-no-build-skip.patch12
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebkit-darwin-no-qos-classes.patch11
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebkit-darwin-no-readline.patch45
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebkit-icu68.patch170
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebkit.patch12
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.12/srcs.nix326
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/default.nix233
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/fetch.sh2
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0001-qtbase-mkspecs-mac.patch409
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0003-qtbase-mkspecs.patch490
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0004-qtbase-replace-libdir.patch68
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0005-qtbase-cmake.patch194
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0006-qtbase-gtk3.patch48
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0007-qtbase-xcursor.patch29
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0008-qtbase-tzdir.patch64
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0009-qtbase-qtpluginpath.patch19
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0010-qtbase-assert.patch32
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0011-fix-header_module.patch25
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0012-qtbase-tbd-frameworks.patch15
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0013-define-kiosurfacesuccess.patch16
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/qtbase-sdk-10.12-mac.patch77
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtdeclarative.patch33
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtlocation-gcc-9.patch21
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtscript.patch13
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtserialport.patch22
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qttools.patch15
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwayland-libdrm-build.patch56
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwebengine-darwin-no-platform-check.patch33
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwebkit-darwin-no-qos-classes.patch11
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwebkit-darwin-no-readline.patch30
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwebkit-icu68.patch170
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwebkit.patch12
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.14/srcs.nix342
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/default.nix197
-rwxr-xr-xnixpkgs/pkgs/development/libraries/qt-5/5.15/fetch.sh17
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/modules41
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0001-qtbase-mkspecs-mac.patch409
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0003-qtbase-mkspecs.patch490
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0004-qtbase-replace-libdir.patch68
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0005-qtbase-cmake.patch194
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0006-qtbase-gtk3.patch48
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0007-qtbase-xcursor.patch29
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0008-qtbase-tzdir.patch64
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0009-qtbase-qtpluginpath.patch33
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0010-qtbase-assert.patch32
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0011-fix-header_module.patch25
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0012-qtbase-tbd-frameworks.patch15
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0013-define-kiosurfacesuccess.patch16
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0001-Revert-QCocoaDrag-set-image-only-on-the-first-drag-i.patch47
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0002-Revert-QCocoaDrag-drag-make-sure-clipboard-is-ours-a.patch40
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0003-Revert-QCocoaDrag-maybeDragMultipleItems-fix-erroneo.patch27
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0004-Revert-QCocoaDrag-avoid-using-the-deprecated-API-if-.patch192
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0005-Revert-macOS-Fix-use-of-deprecated-NSOffState.patch26
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0006-git-checkout-v5.15.0-src-plugins-platforms-cocoa-qco.patch77
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/qtbase-sdk-10.12-mac.patch77
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtdeclarative.patch114
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtscript.patch13
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtserialport.patch22
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qttools.patch15
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebengine-darwin-no-platform-check.patch37
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebengine-mac-dont-set-dsymutil-path.patch12
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebkit-darwin-no-qos-classes.patch11
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebkit-darwin-no-readline.patch30
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebkit-icu68.patch170
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebkit.patch12
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/srcs-generated.json207
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/5.15/srcs.nix72
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/README.md81
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/hooks/fix-qmake-libtool.sh25
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/hooks/fix-qt-builtin-paths.sh64
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/hooks/fix-qt-module-paths.sh36
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/hooks/move-qt-dev-tools.sh34
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/hooks/qmake-hook.sh46
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/hooks/qtbase-setup-hook.sh112
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/hooks/qttools-setup-hook.sh1
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/hooks/wrap-qt-apps-hook.sh107
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/mkDerivation.nix17
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qt3d.nix7
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtbase.nix373
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtcharts.nix7
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtconnectivity.nix8
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtdeclarative.nix24
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtdoc.nix7
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtgamepad.nix10
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtgraphicaleffects.nix7
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtimageformats.nix7
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtlocation.nix13
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtmacextras.nix10
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtmultimedia.nix24
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtnetworkauth.nix6
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtquickcontrols.nix6
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtquickcontrols2.nix7
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtscript.nix6
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtscxml.nix7
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtsensors.nix7
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtserialbus.nix6
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtserialport.nix7
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtspeech.nix7
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtsvg.nix7
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qttools.nix42
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qttranslations.nix6
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtvirtualkeyboard.nix6
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtwayland.nix9
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebchannel.nix8
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebengine.nix250
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebglplugin.nix6
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebkit.nix73
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebsockets.nix7
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebview.nix12
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtx11extras.nix6
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/modules/qtxmlpatterns.nix7
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/qt-env.nix21
-rw-r--r--nixpkgs/pkgs/development/libraries/qt-5/qtModule.nix77
137 files changed, 9537 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/default.nix b/nixpkgs/pkgs/development/libraries/qt-5/5.12/default.nix
new file mode 100644
index 000000000000..c40062046658
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/default.nix
@@ -0,0 +1,233 @@
+/*
+
+# Updates
+
+Before a major version update, make a copy of this directory. (We like to
+keep the old version around for a short time after major updates.) Add a
+top-level attribute to `top-level/all-packages.nix`.
+
+1. Update the URL in `pkgs/development/libraries/qt-5/$VERSION/fetch.sh`.
+2. From the top of the Nixpkgs tree, run
+   `./maintainers/scripts/fetch-kde-qt.sh pkgs/development/libraries/qt-5/$VERSION`.
+3. Check that the new packages build correctly.
+4. Commit the changes and open a pull request.
+
+*/
+
+{ newScope
+, lib, stdenv, fetchurl, fetchpatch, fetchFromGitHub, makeSetupHook, makeWrapper
+, bison, cups ? null, harfbuzz, libGL, perl
+, gstreamer, gst-plugins-base, gtk3, dconf
+, darwin
+
+  # options
+, developerBuild ? false
+, decryptSslTraffic ? false
+, debug ? false
+}:
+
+let
+
+  qtCompatVersion = srcs.qtbase.version;
+
+  mirror = "https://download.qt.io";
+  srcs = import ./srcs.nix { inherit fetchurl; inherit mirror; } // {
+    # Community port of the now unmaintained upstream qtwebkit.
+    qtwebkit = rec {
+      src = fetchFromGitHub {
+        owner = "qtwebkit";
+        repo = "qtwebkit";
+        rev = "qtwebkit-${version}";
+        sha256 = "11lc5sk10d9cyg8jqkbgkqiap72b9rax7hy61nm90zw9749y2yfg";
+      };
+      version = "5.212.0-alpha4";
+    };
+  };
+
+  patches = {
+    qtbase = [
+      ./qtbase.patch.d/0001-qtbase-mkspecs-mac.patch
+      ./qtbase.patch.d/0002-qtbase-mac.patch
+      ./qtbase.patch.d/0013-define-kiosurfacesuccess.patch
+
+      # Patch framework detection to support X.framework/X.tbd,
+      # extending the current support for X.framework/X.
+      ./qtbase.patch.d/0015-qtbase-tbd-frameworks.patch
+
+      ./qtbase.patch.d/0003-qtbase-mkspecs.patch
+      ./qtbase.patch.d/0004-qtbase-replace-libdir.patch
+      ./qtbase.patch.d/0005-qtbase-cmake.patch
+      ./qtbase.patch.d/0006-qtbase-gtk3.patch
+      ./qtbase.patch.d/0007-qtbase-xcursor.patch
+      ./qtbase.patch.d/0008-qtbase-xcompose.patch
+      ./qtbase.patch.d/0009-qtbase-tzdir.patch
+      ./qtbase.patch.d/0010-qtbase-qtpluginpath.patch
+      ./qtbase.patch.d/0011-qtbase-assert.patch
+      ./qtbase.patch.d/0012-fix-header_module.patch
+
+      # Ensure -I${includedir} is added to Cflags in pkg-config files.
+      # See https://github.com/NixOS/nixpkgs/issues/52457
+      ./qtbase.patch.d/0014-qtbase-pkg-config.patch
+
+      # Make Qt applications work on macOS Big Sur even if they're
+      # built with an older version of the macOS SDK (<10.14). This
+      # issue is fixed in 5.12.11, but it requires macOS SDK 10.13 to
+      # build. See https://bugreports.qt.io/browse/QTBUG-87014 for
+      # more info.
+      (fetchpatch {
+        name = "big_sur_layer_backed_views.patch";
+        url = "https://codereview.qt-project.org/gitweb?p=qt/qtbase.git;a=patch;h=c5d904639dbd690a36306e2b455610029704d821";
+        sha256 = "0crkw3j1iwdc1pbf5dhar0b4q3h5gs2q1sika8m12y02yk3ns697";
+      })
+    ];
+    qtdeclarative = [ ./qtdeclarative.patch ];
+    qtlocation = [ ./qtlocation-gcc-9.patch ];
+    qtscript = [ ./qtscript.patch ];
+    qtserialport = [ ./qtserialport.patch ];
+    qtwebengine = [
+      ./qtwebengine-no-build-skip.patch
+      # https://gitlab.freedesktop.org/pulseaudio/pulseaudio/issues/707
+      # https://bugreports.qt.io/browse/QTBUG-77037
+      (fetchpatch {
+        name = "fix-build-with-pulseaudio-13.0.patch";
+        url = "https://raw.githubusercontent.com/archlinux/svntogit-packages/fc77d6b3d5ec74e421b58f199efceb2593cbf951/trunk/qtbug-77037-workaround.patch";
+        sha256 = "1gv733qfdn9746nbqqxzyjx4ijjqkkb7zb71nxax49nna5bri3am";
+      })
+
+      ./qtwebengine-darwin-no-platform-check.patch
+      ./qtwebengine-darwin-fix-failed-static-assertion.patch
+    ];
+    qtwebkit = [
+      (fetchpatch {
+        name = "qtwebkit-bison-3.7-build.patch";
+        url = "https://github.com/qtwebkit/qtwebkit/commit/d92b11fea65364fefa700249bd3340e0cd4c5b31.patch";
+        sha256 = "0h8ymfnwgkjkwaankr3iifiscsvngqpwb91yygndx344qdiw9y0n";
+      })
+      (fetchpatch {
+        name = "qtwebkit-glib-2.68.patch";
+        url = "https://github.com/qtwebkit/qtwebkit/pull/1058/commits/5b698ba3faffd4e198a45be9fe74f53307395e4b.patch";
+        sha256 = "0a3xv0h4lv8wggckgy8cg8xnpkg7n9h45312pdjdnnwy87xvzss0";
+      })
+      ./qtwebkit.patch
+      ./qtwebkit-icu68.patch
+
+      ./qtwebkit-darwin-no-readline.patch
+      ./qtwebkit-darwin-no-qos-classes.patch
+    ];
+    qttools = [ ./qttools.patch ];
+  };
+
+  qtModule =
+    import ../qtModule.nix
+    {
+      inherit perl;
+      inherit lib;
+      # Use a variant of mkDerivation that does not include wrapQtApplications
+      # to avoid cyclic dependencies between Qt modules.
+      mkDerivation =
+        import ../mkDerivation.nix
+        { inherit lib; inherit debug; wrapQtAppsHook = null; }
+        stdenv.mkDerivation;
+    }
+    { inherit self srcs patches; };
+
+  addPackages = self: with self;
+    let
+      callPackage = self.newScope { inherit qtCompatVersion qtModule srcs; };
+    in {
+
+      inherit callPackage qtCompatVersion qtModule srcs;
+
+      mkDerivationWith =
+        import ../mkDerivation.nix
+        { inherit lib; inherit debug; inherit (self) wrapQtAppsHook; };
+
+      mkDerivation = mkDerivationWith stdenv.mkDerivation;
+
+      qtbase = callPackage ../modules/qtbase.nix {
+        inherit (srcs.qtbase) src version;
+        patches = patches.qtbase;
+        inherit bison cups harfbuzz libGL;
+        withGtk3 = true; inherit dconf gtk3;
+        inherit debug developerBuild decryptSslTraffic;
+        inherit (darwin.apple_sdk.frameworks) AGL AppKit ApplicationServices Carbon Cocoa CoreAudio CoreBluetooth
+          CoreLocation CoreServices DiskArbitration Foundation OpenGL MetalKit IOKit;
+        inherit (darwin) libobjc;
+      };
+
+      qt3d = callPackage ../modules/qt3d.nix {};
+      qtcharts = callPackage ../modules/qtcharts.nix {};
+      qtconnectivity = callPackage ../modules/qtconnectivity.nix {};
+      qtdeclarative = callPackage ../modules/qtdeclarative.nix {};
+      qtdoc = callPackage ../modules/qtdoc.nix {};
+      qtgamepad = callPackage ../modules/qtgamepad.nix {
+        inherit (darwin.apple_sdk.frameworks) GameController;
+      };
+      qtgraphicaleffects = callPackage ../modules/qtgraphicaleffects.nix {};
+      qtimageformats = callPackage ../modules/qtimageformats.nix {};
+      qtlocation = callPackage ../modules/qtlocation.nix {};
+      qtmacextras = callPackage ../modules/qtmacextras.nix {};
+      qtmultimedia = callPackage ../modules/qtmultimedia.nix {
+        inherit gstreamer gst-plugins-base;
+      };
+      qtnetworkauth = callPackage ../modules/qtnetworkauth.nix {};
+      qtquick1 = null;
+      qtquickcontrols = callPackage ../modules/qtquickcontrols.nix {};
+      qtquickcontrols2 = callPackage ../modules/qtquickcontrols2.nix {};
+      qtscript = callPackage ../modules/qtscript.nix {};
+      qtsensors = callPackage ../modules/qtsensors.nix {};
+      qtserialbus = callPackage ../modules/qtserialbus.nix {};
+      qtserialport = callPackage ../modules/qtserialport.nix {};
+      qtspeech = callPackage ../modules/qtspeech.nix {};
+      qtsvg = callPackage ../modules/qtsvg.nix {};
+      qtscxml = callPackage ../modules/qtscxml.nix {};
+      qttools = callPackage ../modules/qttools.nix {};
+      qttranslations = callPackage ../modules/qttranslations.nix {};
+      qtvirtualkeyboard = callPackage ../modules/qtvirtualkeyboard.nix {};
+      qtwayland = callPackage ../modules/qtwayland.nix {};
+      qtwebchannel = callPackage ../modules/qtwebchannel.nix {};
+      qtwebengine = callPackage ../modules/qtwebengine.nix {
+        inherit (darwin) cctools libobjc libunwind xnu;
+        inherit (darwin.apple_sdk.libs) sandbox;
+        inherit (darwin.apple_sdk.frameworks) ApplicationServices AVFoundation Foundation ForceFeedback GameController AppKit
+          ImageCaptureCore CoreBluetooth IOBluetooth CoreWLAN Quartz Cocoa LocalAuthentication;
+      };
+      qtwebglplugin = callPackage ../modules/qtwebglplugin.nix {};
+      qtwebkit = callPackage ../modules/qtwebkit.nix {
+        inherit (darwin) ICU;
+        inherit (darwin.apple_sdk.frameworks) OpenGL;
+      };
+      qtwebsockets = callPackage ../modules/qtwebsockets.nix {};
+      qtwebview = callPackage ../modules/qtwebview.nix {
+        inherit (darwin.apple_sdk.frameworks) CoreFoundation WebKit;
+      };
+      qtx11extras = callPackage ../modules/qtx11extras.nix {};
+      qtxmlpatterns = callPackage ../modules/qtxmlpatterns.nix {};
+
+      env = callPackage ../qt-env.nix {};
+      full = env "qt-full-${qtbase.version}" ([
+        qt3d qtcharts qtconnectivity qtdeclarative qtdoc qtgamepad qtgraphicaleffects
+        qtimageformats qtlocation qtmultimedia qtquickcontrols qtquickcontrols2
+        qtscript qtsensors qtserialport qtsvg qttools qttranslations
+        qtvirtualkeyboard qtwebchannel qtwebengine qtwebkit qtwebsockets
+        qtwebview qtx11extras qtxmlpatterns
+      ] ++ lib.optional (!stdenv.isDarwin) qtwayland
+        ++ lib.optional (stdenv.isDarwin) qtmacextras);
+
+      qmake = makeSetupHook {
+        deps = [ self.qtbase.dev ];
+        substitutions = {
+          inherit debug;
+          fix_qmake_libtool = ../hooks/fix-qmake-libtool.sh;
+        };
+      } ../hooks/qmake-hook.sh;
+
+      wrapQtAppsHook = makeSetupHook {
+        deps = [ self.qtbase.dev makeWrapper ]
+          ++ lib.optional stdenv.isLinux self.qtwayland.dev;
+      } ../hooks/wrap-qt-apps-hook.sh;
+    };
+
+   self = lib.makeScope newScope addPackages;
+
+in self
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/fetch.sh b/nixpkgs/pkgs/development/libraries/qt-5/5.12/fetch.sh
new file mode 100644
index 000000000000..6d2cf551dd5b
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/fetch.sh
@@ -0,0 +1,2 @@
+WGET_ARGS=( http://download.qt.io/official_releases/qt/5.12/5.12.10/submodules/ \
+            -A '*.tar.xz' )
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0001-qtbase-mkspecs-mac.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0001-qtbase-mkspecs-mac.patch
new file mode 100644
index 000000000000..6646e1e0b2be
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0001-qtbase-mkspecs-mac.patch
@@ -0,0 +1,387 @@
+diff --git a/mkspecs/common/mac.conf b/mkspecs/common/mac.conf
+index b77494ec..470c38e7 100644
+--- a/mkspecs/common/mac.conf
++++ b/mkspecs/common/mac.conf
+@@ -24,7 +24,7 @@ QMAKE_INCDIR_OPENGL     = \
+ 
+ QMAKE_FIX_RPATH         = install_name_tool -id
+ 
+-QMAKE_LFLAGS_RPATH      = -Wl,-rpath,
++QMAKE_LFLAGS_RPATH      =
+ QMAKE_LFLAGS_GCSECTIONS = -Wl,-dead_strip
+ 
+ QMAKE_LFLAGS_REL_RPATH  =
+diff --git a/mkspecs/features/mac/default_post.prf b/mkspecs/features/mac/default_post.prf
+index d052808c..b80ec1e8 100644
+--- a/mkspecs/features/mac/default_post.prf
++++ b/mkspecs/features/mac/default_post.prf
+@@ -68,208 +68,6 @@ qt {
+     }
+ }
+ 
+-# Add the same default rpaths as Xcode does for new projects.
+-# This is especially important for iOS/tvOS/watchOS where no other option is possible.
+-!no_default_rpath {
+-    QMAKE_RPATHDIR += @executable_path/../Frameworks
+-    equals(TEMPLATE, lib):!plugin:lib_bundle: QMAKE_RPATHDIR += @loader_path/Frameworks
+-}
+-
+-# Don't pass -headerpad_max_install_names when using Bitcode.
+-# In that case the linker emits a warning stating that the flag is ignored when
+-# used with bitcode, for reasons that cannot be determined (rdar://problem/20748962).
+-# Using this flag is also unnecessary in practice on UIKit platforms since they
+-# are sandboxed, and only UIKit platforms support bitcode to begin with.
+-!bitcode: QMAKE_LFLAGS += $$QMAKE_LFLAGS_HEADERPAD
+-
+-app_extension_api_only {
+-    QMAKE_CFLAGS              += $$QMAKE_CFLAGS_APPLICATION_EXTENSION
+-    QMAKE_CXXFLAGS            += $$QMAKE_CFLAGS_APPLICATION_EXTENSION
+-    QMAKE_CXXFLAGS_PRECOMPILE += $$QMAKE_CFLAGS_APPLICATION_EXTENSION
+-    QMAKE_LFLAGS              += $$QMAKE_CFLAGS_APPLICATION_EXTENSION
+-}
+-
+-macx-xcode {
+-    qmake_pkginfo_typeinfo.name = QMAKE_PKGINFO_TYPEINFO
+-    !isEmpty(QMAKE_PKGINFO_TYPEINFO): \
+-        qmake_pkginfo_typeinfo.value = $$QMAKE_PKGINFO_TYPEINFO
+-    else: \
+-        qmake_pkginfo_typeinfo.value = "????"
+-    QMAKE_MAC_XCODE_SETTINGS += qmake_pkginfo_typeinfo
+-
+-    bundle_version = $$VERSION
+-    isEmpty(bundle_version): bundle_version = 1.0.0
+-
+-    l = $$split(bundle_version, '.') 0 0  # make sure there are at least three
+-    VER_MAJ = $$member(l, 0, 0)
+-    VER_MIN = $$member(l, 1, 1)
+-    VER_PAT = $$member(l, 2, 2)
+-    unset(l)
+-
+-    qmake_full_version.name = QMAKE_FULL_VERSION
+-    qmake_full_version.value = $${VER_MAJ}.$${VER_MIN}.$${VER_PAT}
+-    QMAKE_MAC_XCODE_SETTINGS += qmake_full_version
+-
+-    qmake_short_version.name = QMAKE_SHORT_VERSION
+-    qmake_short_version.value = $${VER_MAJ}.$${VER_MIN}
+-    QMAKE_MAC_XCODE_SETTINGS += qmake_short_version
+-
+-    !isEmpty(QMAKE_XCODE_DEBUG_INFORMATION_FORMAT) {
+-        debug_information_format.name = DEBUG_INFORMATION_FORMAT
+-        debug_information_format.value = $$QMAKE_XCODE_DEBUG_INFORMATION_FORMAT
+-        debug_information_format.build = debug
+-        QMAKE_MAC_XCODE_SETTINGS += debug_information_format
+-    }
+-
+-    QMAKE_XCODE_ARCHS =
+-
+-    arch_device.name = "ARCHS[sdk=$${device.sdk}*]"
+-    arch_device.value = $$QMAKE_APPLE_DEVICE_ARCHS
+-    QMAKE_XCODE_ARCHS += $$QMAKE_APPLE_DEVICE_ARCHS
+-    QMAKE_MAC_XCODE_SETTINGS += arch_device
+-
+-    simulator {
+-        arch_simulator.name = "ARCHS[sdk=$${simulator.sdk}*]"
+-        arch_simulator.value = $$QMAKE_APPLE_SIMULATOR_ARCHS
+-        QMAKE_XCODE_ARCHS += $$QMAKE_APPLE_SIMULATOR_ARCHS
+-        QMAKE_MAC_XCODE_SETTINGS += arch_simulator
+-    }
+-
+-    only_active_arch.name = ONLY_ACTIVE_ARCH
+-    only_active_arch.value = YES
+-    only_active_arch.build = debug
+-    QMAKE_MAC_XCODE_SETTINGS += only_active_arch
+-} else {
+-    device|!simulator: VALID_DEVICE_ARCHS = $$QMAKE_APPLE_DEVICE_ARCHS
+-    simulator: VALID_SIMULATOR_ARCHS = $$QMAKE_APPLE_SIMULATOR_ARCHS
+-    VALID_ARCHS = $$VALID_DEVICE_ARCHS $$VALID_SIMULATOR_ARCHS
+-
+-    isEmpty(VALID_ARCHS): \
+-        error("QMAKE_APPLE_DEVICE_ARCHS or QMAKE_APPLE_SIMULATOR_ARCHS must contain at least one architecture")
+-
+-    single_arch: VALID_ARCHS = $$first(VALID_ARCHS)
+-
+-    ACTIVE_ARCHS = $(filter $(EXPORT_VALID_ARCHS), $(ARCHS))
+-    ARCH_ARGS = $(foreach arch, $(if $(EXPORT_ACTIVE_ARCHS), $(EXPORT_ACTIVE_ARCHS), $(EXPORT_VALID_ARCHS)), -arch $(arch))
+-
+-    QMAKE_EXTRA_VARIABLES += VALID_ARCHS ACTIVE_ARCHS ARCH_ARGS
+-
+-    arch_flags = $(EXPORT_ARCH_ARGS)
+-
+-    QMAKE_CFLAGS += $$arch_flags
+-    QMAKE_CXXFLAGS += $$arch_flags
+-    QMAKE_LFLAGS += $$arch_flags
+-
+-    QMAKE_PCH_ARCHS = $$VALID_ARCHS
+-
+-    macos: deployment_target = $$QMAKE_MACOSX_DEPLOYMENT_TARGET
+-    ios: deployment_target = $$QMAKE_IOS_DEPLOYMENT_TARGET
+-    tvos: deployment_target = $$QMAKE_TVOS_DEPLOYMENT_TARGET
+-    watchos: deployment_target = $$QMAKE_WATCHOS_DEPLOYMENT_TARGET
+-
+-    # If we're doing a simulator and device build, device and simulator
+-    # architectures use different paths and flags for the sysroot and
+-    # deployment target switch, so we must multiplex them across multiple
+-    # architectures using -Xarch. Otherwise we fall back to the simple path.
+-    # This is not strictly necessary, but results in cleaner command lines
+-    # and makes it easier for people to override EXPORT_VALID_ARCHS to limit
+-    # individual rules to a different set of architecture(s) from the overall
+-    # build (such as machtest in QtCore).
+-    simulator:device {
+-        QMAKE_XARCH_CFLAGS =
+-        QMAKE_XARCH_LFLAGS =
+-        QMAKE_EXTRA_VARIABLES += QMAKE_XARCH_CFLAGS QMAKE_XARCH_LFLAGS
+-
+-        for (arch, VALID_ARCHS) {
+-            contains(VALID_SIMULATOR_ARCHS, $$arch) {
+-                sdk = $$simulator.sdk
+-                version_identifier = $$simulator.deployment_identifier
+-            } else {
+-                sdk = $$device.sdk
+-                version_identifier = $$device.deployment_identifier
+-            }
+-
+-            version_min_flags = \
+-                -Xarch_$${arch} \
+-                -m$${version_identifier}-version-min=$$deployment_target
+-            QMAKE_XARCH_CFLAGS_$${arch} = $$version_min_flags \
+-                -Xarch_$${arch} \
+-                -isysroot$$xcodeSDKInfo(Path, $$sdk)
+-            QMAKE_XARCH_LFLAGS_$${arch} = $$version_min_flags \
+-                -Xarch_$${arch} \
+-                -isysroot$$xcodeSDKInfo(Path, $$sdk)
+-
+-            QMAKE_XARCH_CFLAGS += $(EXPORT_QMAKE_XARCH_CFLAGS_$${arch})
+-            QMAKE_XARCH_LFLAGS += $(EXPORT_QMAKE_XARCH_LFLAGS_$${arch})
+-
+-            QMAKE_EXTRA_VARIABLES += \
+-                QMAKE_XARCH_CFLAGS_$${arch} \
+-                QMAKE_XARCH_LFLAGS_$${arch}
+-        }
+-
+-        QMAKE_CFLAGS += $(EXPORT_QMAKE_XARCH_CFLAGS)
+-        QMAKE_CXXFLAGS += $(EXPORT_QMAKE_XARCH_CFLAGS)
+-        QMAKE_LFLAGS += $(EXPORT_QMAKE_XARCH_LFLAGS)
+-    } else {
+-        simulator: \
+-            version_identifier = $$simulator.deployment_identifier
+-        else: \
+-            version_identifier = $$device.deployment_identifier
+-        version_min_flag = -m$${version_identifier}-version-min=$$deployment_target
+-        QMAKE_CFLAGS += -isysroot $$QMAKE_MAC_SDK_PATH $$version_min_flag
+-        QMAKE_CXXFLAGS += -isysroot $$QMAKE_MAC_SDK_PATH $$version_min_flag
+-        QMAKE_LFLAGS += -isysroot $$QMAKE_MAC_SDK_PATH $$version_min_flag
+-    }
+-
+-    # Enable precompiled headers for multiple architectures
+-    QMAKE_CFLAGS_USE_PRECOMPILE =
+-    for (arch, VALID_ARCHS) {
+-        icc_pch_style: \
+-            use_flag = "-pch-use "
+-        else: \
+-            use_flag = -include
+-
+-        # Only use Xarch with multi-arch, as the option confuses ccache
+-        count(VALID_ARCHS, 1, greaterThan): \
+-            QMAKE_CFLAGS_USE_PRECOMPILE += \
+-                -Xarch_$${arch}
+-
+-        QMAKE_CFLAGS_USE_PRECOMPILE += \
+-            $${use_flag}${QMAKE_PCH_OUTPUT_$${arch}}
+-    }
+-    icc_pch_style {
+-        QMAKE_CXXFLAGS_USE_PRECOMPILE = $$QMAKE_CFLAGS_USE_PRECOMPILE -include ${QMAKE_PCH_INPUT}
+-        QMAKE_CFLAGS_USE_PRECOMPILE =
+-    } else {
+-        QMAKE_CXXFLAGS_USE_PRECOMPILE = $$QMAKE_CFLAGS_USE_PRECOMPILE
+-        QMAKE_OBJCFLAGS_USE_PRECOMPILE = $$QMAKE_CFLAGS_USE_PRECOMPILE
+-        QMAKE_OBJCXXFLAGS_USE_PRECOMPILE = $$QMAKE_CFLAGS_USE_PRECOMPILE
+-    }
+-
+-    QMAKE_PCH_OUTPUT_EXT = _${QMAKE_PCH_ARCH}$${QMAKE_PCH_OUTPUT_EXT}
+-}
+-
+-!equals(sdk_version, $$QMAKE_MAC_SDK_VERSION) {
+-    # Explicit SDK version has been set, respect that
+-    QMAKE_LFLAGS += -Wl,-sdk_version -Wl,$$sdk_version
+-}
+-
+-cache(QMAKE_XCODE_DEVELOPER_PATH, stash)
+-!isEmpty(QMAKE_XCODE_VERSION): \
+-    cache(QMAKE_XCODE_VERSION, stash)
+-
+-QMAKE_XCODE_LIBRARY_SUFFIX = $$qtPlatformTargetSuffix()
+-
+-xcode_product_bundle_identifier_setting.name = PRODUCT_BUNDLE_IDENTIFIER
+-xcode_product_bundle_identifier_setting.value = $$QMAKE_TARGET_BUNDLE_PREFIX
+-isEmpty(xcode_product_bundle_identifier_setting.value): \
+-    xcode_product_bundle_identifier_setting.value = "com.yourcompany"
+-xcode_product_bundle_target = $$QMAKE_BUNDLE
+-isEmpty(xcode_product_bundle_target): \
+-    xcode_product_bundle_target = ${PRODUCT_NAME:rfc1034identifier}
+-xcode_product_bundle_identifier_setting.value = "$${xcode_product_bundle_identifier_setting.value}.$${xcode_product_bundle_target}"
+-QMAKE_MAC_XCODE_SETTINGS += xcode_product_bundle_identifier_setting
+-
+ !macx-xcode {
+     generate_xcode_project.commands = @$(QMAKE) -spec macx-xcode \"$(EXPORT__PRO_FILE_)\" $$QMAKE_ARGS
+     generate_xcode_project.target = xcodeproj
+diff --git a/mkspecs/features/mac/default_pre.prf b/mkspecs/features/mac/default_pre.prf
+index e3534561..3b01424e 100644
+--- a/mkspecs/features/mac/default_pre.prf
++++ b/mkspecs/features/mac/default_pre.prf
+@@ -1,60 +1,2 @@
+ CONFIG = asset_catalogs rez $$CONFIG
+ load(default_pre)
+-
+-isEmpty(QMAKE_XCODE_DEVELOPER_PATH) {
+-    # Get path of Xcode's Developer directory
+-    QMAKE_XCODE_DEVELOPER_PATH = $$system("/usr/bin/xcode-select --print-path 2>/dev/null")
+-    isEmpty(QMAKE_XCODE_DEVELOPER_PATH): \
+-        error("Xcode path is not set. Please use xcode-select to choose Xcode installation path.")
+-
+-    # Make sure Xcode path is valid
+-    !exists($$QMAKE_XCODE_DEVELOPER_PATH): \
+-        error("Xcode is not installed in $${QMAKE_XCODE_DEVELOPER_PATH}. Please use xcode-select to choose Xcode installation path.")
+-}
+-
+-isEmpty(QMAKE_XCODEBUILD_PATH): \
+-    QMAKE_XCODEBUILD_PATH = $$system("/usr/bin/xcrun -find xcodebuild 2>/dev/null")
+-
+-!isEmpty(QMAKE_XCODEBUILD_PATH) {
+-    # Make sure Xcode is set up properly
+-    !system("/usr/bin/xcrun xcodebuild -license check 2>/dev/null"): \
+-        error("Xcode not set up properly. You need to confirm the license agreement by running 'sudo xcrun xcodebuild -license accept'.")
+-
+-    isEmpty(QMAKE_XCODE_VERSION) {
+-        # Extract Xcode version using xcodebuild
+-        xcode_version = $$system("/usr/bin/xcrun xcodebuild -version")
+-        QMAKE_XCODE_VERSION = $$member(xcode_version, 1)
+-        isEmpty(QMAKE_XCODE_VERSION): error("Could not resolve Xcode version.")
+-        unset(xcode_version)
+-    }
+-}
+-
+-isEmpty(QMAKE_TARGET_BUNDLE_PREFIX) {
+-    QMAKE_XCODE_PREFERENCES_FILE = $$(HOME)/Library/Preferences/com.apple.dt.Xcode.plist
+-    exists($$QMAKE_XCODE_PREFERENCES_FILE): \
+-        QMAKE_TARGET_BUNDLE_PREFIX = $$system("/usr/libexec/PlistBuddy -c 'print IDETemplateOptions:bundleIdentifierPrefix' $$QMAKE_XCODE_PREFERENCES_FILE 2>/dev/null")
+-
+-    !isEmpty(_QMAKE_CACHE_):!isEmpty(QMAKE_TARGET_BUNDLE_PREFIX): \
+-        cache(QMAKE_TARGET_BUNDLE_PREFIX)
+-}
+-
+-QMAKE_ASSET_CATALOGS_APP_ICON = AppIcon
+-
+-# Make the default debug info format for static debug builds
+-# DWARF instead of DWARF with dSYM. This cuts down build times
+-# for application debug builds significantly, as Xcode doesn't
+-# have to pull out all the DWARF info from the Qt static libs
+-# and put it into a dSYM file. We don't need that dSYM file in
+-# the first place, since the information is available in the
+-# object files inside the archives (static libraries).
+-macx-xcode:qtConfig(static): \
+-    QMAKE_XCODE_DEBUG_INFORMATION_FORMAT = dwarf
+-
+-# This variable is used by the xcode_dynamic_library_suffix
+-# feature, which allows Xcode to choose the Qt libraries to link to
+-# at build time, depending on the current Xcode SDK and configuration.
+-QMAKE_XCODE_LIBRARY_SUFFIX_SETTING = QT_LIBRARY_SUFFIX
+-
+-xcode_copy_phase_strip_setting.name = COPY_PHASE_STRIP
+-xcode_copy_phase_strip_setting.value = NO
+-QMAKE_MAC_XCODE_SETTINGS += xcode_copy_phase_strip_setting
+diff --git a/mkspecs/features/mac/sdk.mk b/mkspecs/features/mac/sdk.mk
+index c40f58c9..e69de29b 100644
+--- a/mkspecs/features/mac/sdk.mk
++++ b/mkspecs/features/mac/sdk.mk
+@@ -1,25 +0,0 @@
+-
+-ifeq ($(QT_MAC_SDK_NO_VERSION_CHECK),)
+-    CHECK_SDK_COMMAND = /usr/bin/xcrun --sdk $(EXPORT_QMAKE_MAC_SDK) -show-sdk-version 2>&1
+-    CURRENT_MAC_SDK_VERSION := $(shell DEVELOPER_DIR=$(EXPORT_QMAKE_XCODE_DEVELOPER_PATH) $(CHECK_SDK_COMMAND))
+-    ifneq ($(CURRENT_MAC_SDK_VERSION),$(EXPORT_QMAKE_MAC_SDK_VERSION))
+-        # We don't want to complain about out of date SDK unless the target needs to be remade.
+-        # This covers use-cases such as running 'make check' after moving the build to a
+-        # computer without Xcode or with a different Xcode version.
+-        TARGET_UP_TO_DATE := $(shell QT_MAC_SDK_NO_VERSION_CHECK=1 $(MAKE) --question $(QMAKE_TARGET) && echo 1 || echo 0)
+-        ifeq ($(TARGET_UP_TO_DATE),0)
+-            ifneq ($(findstring missing DEVELOPER_DIR path,$(CURRENT_MAC_SDK_VERSION)),)
+-                $(info The developer dir $(EXPORT_QMAKE_XCODE_DEVELOPER_PATH) is no longer valid.)
+-            else ifneq ($(findstring SDK "$(EXPORT_QMAKE_MAC_SDK)" cannot be located,$(CURRENT_MAC_SDK_VERSION)),)
+-                $(info The developer dir $(EXPORT_QMAKE_XCODE_DEVELOPER_PATH) no longer contains the $(EXPORT_QMAKE_MAC_SDK_VERSION) platform SDK.)
+-            else ifneq ($(CURRENT_MAC_SDK_VERSION),)
+-                $(info The platform SDK has been changed from version $(EXPORT_QMAKE_MAC_SDK_VERSION) to version $(CURRENT_MAC_SDK_VERSION).)
+-            else
+-                $(info Unknown error resolving current platform SDK version.)
+-            endif
+-            $(info This requires a fresh build. Please wipe the build directory completely,)
+-            $(info including any .qmake.stash and .qmake.cache files generated by qmake.)
+-            $(error ^)
+-        endif
+-    endif
+-endif
+diff --git a/mkspecs/features/mac/sdk.prf b/mkspecs/features/mac/sdk.prf
+index 3a9c2778..e69de29b 100644
+--- a/mkspecs/features/mac/sdk.prf
++++ b/mkspecs/features/mac/sdk.prf
+@@ -1,61 +0,0 @@
+-
+-isEmpty(QMAKE_MAC_SDK): \
+-    error("QMAKE_MAC_SDK must be set when using CONFIG += sdk.")
+-
+-contains(QMAKE_MAC_SDK, .*/.*): \
+-    error("QMAKE_MAC_SDK can only contain short-form SDK names (eg. macosx, iphoneos)")
+-
+-defineReplace(xcodeSDKInfo) {
+-    info = $$1
+-    equals(info, "Path"): \
+-        infoarg = --show-sdk-path
+-    equals(info, "PlatformPath"): \
+-        infoarg = --show-sdk-platform-path
+-    equals(info, "SDKVersion"): \
+-        infoarg = --show-sdk-version
+-    sdk = $$2
+-    isEmpty(sdk): \
+-        sdk = $$QMAKE_MAC_SDK
+-
+-    isEmpty(QMAKE_MAC_SDK.$${sdk}.$${info}) {
+-        QMAKE_MAC_SDK.$${sdk}.$${info} = $$system("/usr/bin/xcrun --sdk $$sdk $$infoarg 2>/dev/null")
+-        # --show-sdk-platform-path won't work for Command Line Tools; this is fine
+-        # only used by the XCTest backend to testlib
+-        isEmpty(QMAKE_MAC_SDK.$${sdk}.$${info}):if(!isEmpty(QMAKE_XCODEBUILD_PATH)|!equals(infoarg, "--show-sdk-platform-path")): \
+-            error("Could not resolve SDK $$info for \'$$sdk\' using $$infoarg")
+-        cache(QMAKE_MAC_SDK.$${sdk}.$${info}, set stash, QMAKE_MAC_SDK.$${sdk}.$${info})
+-    }
+-
+-    return($$eval(QMAKE_MAC_SDK.$${sdk}.$${info}))
+-}
+-
+-QMAKE_MAC_SDK_PATH = $$xcodeSDKInfo(Path)
+-QMAKE_MAC_SDK_PLATFORM_PATH = $$xcodeSDKInfo(PlatformPath)
+-QMAKE_MAC_SDK_VERSION = $$xcodeSDKInfo(SDKVersion)
+-
+-isEmpty(QMAKE_EXPORT_INCDIR_OPENGL) {
+-    QMAKE_EXPORT_INCDIR_OPENGL = $$QMAKE_INCDIR_OPENGL
+-    sysrootified =
+-    for(val, QMAKE_INCDIR_OPENGL): sysrootified += $${QMAKE_MAC_SDK_PATH}$$val
+-    QMAKE_INCDIR_OPENGL = $$sysrootified
+-}
+-
+-QMAKESPEC_NAME = $$basename(QMAKESPEC)
+-
+-# Resolve SDK version of various tools
+-for(tool, $$list(QMAKE_CC QMAKE_CXX QMAKE_FIX_RPATH QMAKE_AR QMAKE_RANLIB QMAKE_LINK QMAKE_LINK_SHLIB QMAKE_ACTOOL QMAKE_LINK_C QMAKE_LINK_C_SHLIB)) {
+-    tool_variable = QMAKE_MAC_SDK.$${QMAKESPEC_NAME}.$${QMAKE_MAC_SDK}.$${tool}
+-    !isEmpty($$tool_variable) {
+-        $$tool = $$eval($$tool_variable)
+-        next()
+-    }
+-
+-    value = $$eval($$tool)
+-    isEmpty(value): next()
+-
+-    sysrooted = $$system("/usr/bin/xcrun -sdk $$QMAKE_MAC_SDK -find $$first(value) 2>/dev/null")
+-    isEmpty(sysrooted): next()
+-
+-    $$tool = $$sysrooted $$member(value, 1, -1)
+-    cache($$tool_variable, set stash, $$tool)
+-}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0002-qtbase-mac.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0002-qtbase-mac.patch
new file mode 100644
index 000000000000..9f0c66651844
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0002-qtbase-mac.patch
@@ -0,0 +1,116 @@
+From 203c9338dc92c2c36007cfe6633387348976637e Mon Sep 17 00:00:00 2001
+From: Thomas Tuegel <ttuegel@mailbox.org>
+Date: Tue, 17 Sep 2019 05:37:15 -0500
+Subject: [PATCH 02/12] qtbase-mac
+
+---
+ src/corelib/kernel/qcore_mac_p.h | 16 ++++++++++++++--
+ src/testlib/qappletestlogger.cpp |  2 +-
+ src/testlib/qappletestlogger_p.h |  2 +-
+ src/testlib/qtestcase.cpp        |  2 +-
+ src/testlib/qtestlog.cpp         |  2 +-
+ src/testlib/qtestlog_p.h         |  2 +-
+ 6 files changed, 19 insertions(+), 7 deletions(-)
+
+diff --git a/src/corelib/kernel/qcore_mac_p.h b/src/corelib/kernel/qcore_mac_p.h
+index f96e7358..650946b7 100644
+--- a/src/corelib/kernel/qcore_mac_p.h
++++ b/src/corelib/kernel/qcore_mac_p.h
+@@ -212,7 +212,7 @@ private:
+ 
+ // --------------------------------------------------------------------------
+ 
+-#if !defined(QT_BOOTSTRAPPED)
++#if 0
+ 
+ QT_END_NAMESPACE
+ #include <os/activity.h>
+@@ -290,7 +290,19 @@ QT_MAC_WEAK_IMPORT(_os_activity_current);
+ 
+ #define QT_APPLE_SCOPED_LOG_ACTIVITY(...) QAppleLogActivity scopedLogActivity = QT_APPLE_LOG_ACTIVITY(__VA_ARGS__).enter();
+ 
+-#endif // !defined(QT_BOOTSTRAPPED)
++#else // !defined(QT_BOOTSTRAPPED)
++
++#define QT_APPLE_LOG_ACTIVITY_WITH_PARENT3(...)
++#define QT_APPLE_LOG_ACTIVITY_WITH_PARENT2(...)
++#define QT_APPLE_LOG_ACTIVITY_WITH_PARENT(...)
++
++#define QT_APPLE_LOG_ACTIVITY2(...)
++#define QT_APPLE_LOG_ACTIVITY1(...)
++#define QT_APPLE_LOG_ACTIVITY(...)
++
++#define QT_APPLE_SCOPED_LOG_ACTIVITY(...)
++
++#endif
+ 
+ // -------------------------------------------------------------------------
+ 
+diff --git a/src/testlib/qappletestlogger.cpp b/src/testlib/qappletestlogger.cpp
+index dfeadebd..2a74330c 100644
+--- a/src/testlib/qappletestlogger.cpp
++++ b/src/testlib/qappletestlogger.cpp
+@@ -43,7 +43,7 @@
+ 
+ QT_BEGIN_NAMESPACE
+ 
+-#if defined(QT_USE_APPLE_UNIFIED_LOGGING)
++#if defined(QT_USE_APPLE_UNIFIED_LOGGING) && 0
+ 
+ using namespace QTestPrivate;
+ 
+diff --git a/src/testlib/qappletestlogger_p.h b/src/testlib/qappletestlogger_p.h
+index 62c6d95c..f8e0a3b7 100644
+--- a/src/testlib/qappletestlogger_p.h
++++ b/src/testlib/qappletestlogger_p.h
+@@ -57,7 +57,7 @@
+ 
+ QT_BEGIN_NAMESPACE
+ 
+-#if defined(QT_USE_APPLE_UNIFIED_LOGGING)
++#if defined(QT_USE_APPLE_UNIFIED_LOGGING) && 0
+ class QAppleTestLogger : public QAbstractTestLogger
+ {
+ public:
+diff --git a/src/testlib/qtestcase.cpp b/src/testlib/qtestcase.cpp
+index 0c935a1f..22f2d75d 100644
+--- a/src/testlib/qtestcase.cpp
++++ b/src/testlib/qtestcase.cpp
+@@ -850,7 +850,7 @@ Q_TESTLIB_EXPORT void qtest_qParseArgs(int argc, char *argv[], bool qml)
+ 
+     bool addFallbackLogger = !explicitLoggerRequested;
+ 
+-#if defined(QT_USE_APPLE_UNIFIED_LOGGING)
++#if defined(QT_USE_APPLE_UNIFIED_LOGGING) && 0
+     // Any explicitly requested loggers will be added by now, so we can check if they use stdout
+     const bool safeToAddAppleLogger = !AppleUnifiedLogger::willMirrorToStderr() || !QTestLog::loggerUsingStdout();
+     if (safeToAddAppleLogger && QAppleTestLogger::debugLoggingEnabled()) {
+diff --git a/src/testlib/qtestlog.cpp b/src/testlib/qtestlog.cpp
+index 57bb7d95..33fb8162 100644
+--- a/src/testlib/qtestlog.cpp
++++ b/src/testlib/qtestlog.cpp
+@@ -460,7 +460,7 @@ void QTestLog::addLogger(LogMode mode, const char *filename)
+     case QTestLog::TAP:
+         logger = new QTapTestLogger(filename);
+         break;
+-#if defined(QT_USE_APPLE_UNIFIED_LOGGING)
++#if defined(QT_USE_APPLE_UNIFIED_LOGGING) && 0
+     case QTestLog::Apple:
+         logger = new QAppleTestLogger;
+         break;
+diff --git a/src/testlib/qtestlog_p.h b/src/testlib/qtestlog_p.h
+index e63e89a7..213b6945 100644
+--- a/src/testlib/qtestlog_p.h
++++ b/src/testlib/qtestlog_p.h
+@@ -68,7 +68,7 @@ class Q_TESTLIB_EXPORT QTestLog
+ public:
+     enum LogMode {
+         Plain = 0, XML, LightXML, XunitXML, CSV, TeamCity, TAP
+-#if defined(QT_USE_APPLE_UNIFIED_LOGGING)
++#if defined(QT_USE_APPLE_UNIFIED_LOGGING) && 0
+         , Apple
+ #endif
+ #if defined(HAVE_XCTEST)
+-- 
+2.23.0
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0003-qtbase-mkspecs.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0003-qtbase-mkspecs.patch
new file mode 100644
index 000000000000..506397bc6056
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0003-qtbase-mkspecs.patch
@@ -0,0 +1,491 @@
+From 9ffbcc5e362d17aea3e3d67e43cd3cd993e987eb Mon Sep 17 00:00:00 2001
+From: OPNA2608 <christoph.neidahl@gmail.com>
+Date: Mon, 12 Apr 2021 20:05:25 +0200
+Subject: [PATCH 03/12] qtbase-mkspecs
+
+---
+ mkspecs/features/create_cmake.prf             | 53 ++++--------
+ .../data/cmake/Qt5BasicConfig.cmake.in        | 80 +------------------
+ mkspecs/features/qml_module.prf               |  2 +-
+ mkspecs/features/qml_plugin.prf               |  2 +-
+ mkspecs/features/qt_app.prf                   |  2 +-
+ mkspecs/features/qt_build_paths.prf           |  4 +-
+ mkspecs/features/qt_docs.prf                  | 10 +--
+ mkspecs/features/qt_example_installs.prf      |  2 +-
+ mkspecs/features/qt_functions.prf             | 27 ++++---
+ mkspecs/features/qt_installs.prf              | 22 ++---
+ mkspecs/features/qt_plugin.prf                |  2 +-
+ 11 files changed, 53 insertions(+), 153 deletions(-)
+
+diff --git a/mkspecs/features/create_cmake.prf b/mkspecs/features/create_cmake.prf
+index 02e5775983..3782949d32 100644
+--- a/mkspecs/features/create_cmake.prf
++++ b/mkspecs/features/create_cmake.prf
+@@ -21,7 +21,7 @@ load(cmake_functions)
+ # at cmake time whether package has been found via a symlink, and correct
+ # that to an absolute path. This is only done for installations to
+ # the /usr or / prefix.
+-CMAKE_INSTALL_LIBS_DIR = $$cmakeTargetPath($$[QT_INSTALL_LIBS])
++CMAKE_INSTALL_LIBS_DIR = $$cmakeTargetPath($$NIX_OUTPUT_OUT/lib/)
+ contains(CMAKE_INSTALL_LIBS_DIR, ^(/usr)?/lib(64)?.*): CMAKE_USR_MOVE_WORKAROUND = $$CMAKE_INSTALL_LIBS_DIR
+ 
+ CMAKE_OUT_DIR = $$MODULE_BASE_OUTDIR/lib/cmake
+@@ -70,45 +70,20 @@ split_incpath {
+         $$cmake_extra_source_includes.output
+ }
+ 
+-CMAKE_INCLUDE_DIR = $$cmakeRelativePath($$[QT_INSTALL_HEADERS], $$[QT_INSTALL_PREFIX])
+-contains(CMAKE_INCLUDE_DIR, "^\\.\\./.*") {
+-    CMAKE_INCLUDE_DIR = $$[QT_INSTALL_HEADERS]/
+-    CMAKE_INCLUDE_DIR_IS_ABSOLUTE = True
+-}
++CMAKE_INCLUDE_DIR = $$NIX_OUTPUT_DEV/include/
++CMAKE_INCLUDE_DIR_IS_ABSOLUTE = True
+ 
+-CMAKE_LIB_DIR = $$cmakeRelativePath($$[QT_INSTALL_LIBS], $$[QT_INSTALL_PREFIX])
+-contains(CMAKE_LIB_DIR,"^\\.\\./.*") {
+-    CMAKE_LIB_DIR = $$[QT_INSTALL_LIBS]/
+-    CMAKE_LIB_DIR_IS_ABSOLUTE = True
+-} else {
+-    CMAKE_RELATIVE_INSTALL_LIBS_DIR = $$cmakeRelativePath($$[QT_INSTALL_PREFIX], $$[QT_INSTALL_LIBS])
+-    # We need to go up another two levels because the CMake files are
+-    # installed in $${CMAKE_LIB_DIR}/cmake/Qt5$${CMAKE_MODULE_NAME}
+-    CMAKE_RELATIVE_INSTALL_DIR = "$${CMAKE_RELATIVE_INSTALL_LIBS_DIR}../../"
+-}
++CMAKE_BIN_DIR = $$NIX_OUTPUT_BIN/bin/
++CMAKE_BIN_DIR_IS_ABSOLUTE = True
+ 
+-CMAKE_BIN_DIR = $$cmakeRelativePath($$[QT_HOST_BINS], $$[QT_INSTALL_PREFIX])
+-contains(CMAKE_BIN_DIR, "^\\.\\./.*") {
+-    CMAKE_BIN_DIR = $$[QT_HOST_BINS]/
+-    CMAKE_BIN_DIR_IS_ABSOLUTE = True
+-}
++CMAKE_LIB_DIR = $$NIX_OUTPUT_OUT/lib/
++CMAKE_LIB_DIR_IS_ABSOLUTE = True
+ 
+-CMAKE_PLUGIN_DIR = $$cmakeRelativePath($$[QT_INSTALL_PLUGINS], $$[QT_INSTALL_PREFIX])
+-contains(CMAKE_PLUGIN_DIR, "^\\.\\./.*") {
+-    CMAKE_PLUGIN_DIR = $$[QT_INSTALL_PLUGINS]/
+-    CMAKE_PLUGIN_DIR_IS_ABSOLUTE = True
+-}
+-
+-win32:!static:!staticlib {
+-    CMAKE_DLL_DIR = $$cmakeRelativePath($$[QT_INSTALL_BINS], $$[QT_INSTALL_PREFIX])
+-    contains(CMAKE_DLL_DIR, "^\\.\\./.*") {
+-        CMAKE_DLL_DIR = $$[QT_INSTALL_BINS]/
+-        CMAKE_DLL_DIR_IS_ABSOLUTE = True
+-    }
+-} else {
+-    CMAKE_DLL_DIR = $$CMAKE_LIB_DIR
+-    CMAKE_DLL_DIR_IS_ABSOLUTE = $$CMAKE_LIB_DIR_IS_ABSOLUTE
+-}
++CMAKE_PLUGIN_DIR = $$NIX_OUTPUT_PLUGIN/
++CMAKE_PLUGIN_DIR_IS_ABSOLUTE = True
++ 
++CMAKE_DLL_DIR = $$NIX_OUTPUT_OUT/lib/
++CMAKE_DLL_DIR_IS_ABSOLUTE = True
+ 
+ static|staticlib:CMAKE_STATIC_TYPE = true
+ 
+@@ -188,7 +163,7 @@ contains(CONFIG, plugin) {
+       cmake_target_file
+ 
+     cmake_qt5_plugin_file.files = $$cmake_target_file.output
+-    cmake_qt5_plugin_file.path = $$[QT_INSTALL_LIBS]/cmake/Qt5$${CMAKE_MODULE_NAME}
++    cmake_qt5_plugin_file.path = $$NIX_OUTPUT_OUT/lib/cmake/Qt5$${CMAKE_MODULE_NAME}
+     INSTALLS += cmake_qt5_plugin_file
+ 
+     return()
+@@ -334,7 +309,7 @@ exists($$cmake_macros_file.input) {
+     cmake_qt5_module_files.files += $$cmake_macros_file.output
+ }
+ 
+-cmake_qt5_module_files.path = $$[QT_INSTALL_LIBS]/cmake/Qt5$${CMAKE_MODULE_NAME}
++cmake_qt5_module_files.path = $$NIX_OUTPUT_OUT/lib/cmake/Qt5$${CMAKE_MODULE_NAME}
+ 
+ # We are generating cmake files. Most developers of Qt are not aware of cmake,
+ # so we require automatic tests to be available. The only module which should
+diff --git a/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in b/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in
+index c729892889..c60ef16e64 100644
+--- a/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in
++++ b/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in
+@@ -3,30 +3,6 @@ if (CMAKE_VERSION VERSION_LESS 3.1.0)
+     message(FATAL_ERROR \"Qt 5 $${CMAKE_MODULE_NAME} module requires at least CMake version 3.1.0\")
+ endif()
+ 
+-!!IF !isEmpty(CMAKE_USR_MOVE_WORKAROUND)
+-!!IF !isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-set(_qt5$${CMAKE_MODULE_NAME}_install_prefix \"$$[QT_INSTALL_PREFIX]\")
+-!!ELSE
+-get_filename_component(_IMPORT_PREFIX \"${CMAKE_CURRENT_LIST_FILE}\" PATH)
+-# Use original install prefix when loaded through a
+-# cross-prefix symbolic link such as /lib -> /usr/lib.
+-get_filename_component(_realCurr \"${_IMPORT_PREFIX}\" REALPATH)
+-get_filename_component(_realOrig \"$$CMAKE_INSTALL_LIBS_DIR/cmake/Qt5$${CMAKE_MODULE_NAME}\" REALPATH)
+-if(_realCurr STREQUAL _realOrig)
+-    get_filename_component(_qt5$${CMAKE_MODULE_NAME}_install_prefix \"$$CMAKE_INSTALL_LIBS_DIR/$${CMAKE_RELATIVE_INSTALL_LIBS_DIR}\" ABSOLUTE)
+-else()
+-    get_filename_component(_qt5$${CMAKE_MODULE_NAME}_install_prefix \"${CMAKE_CURRENT_LIST_DIR}/$${CMAKE_RELATIVE_INSTALL_DIR}\" ABSOLUTE)
+-endif()
+-unset(_realOrig)
+-unset(_realCurr)
+-unset(_IMPORT_PREFIX)
+-!!ENDIF
+-!!ELIF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-get_filename_component(_qt5$${CMAKE_MODULE_NAME}_install_prefix \"${CMAKE_CURRENT_LIST_DIR}/$${CMAKE_RELATIVE_INSTALL_DIR}\" ABSOLUTE)
+-!!ELSE
+-set(_qt5$${CMAKE_MODULE_NAME}_install_prefix \"$$[QT_INSTALL_PREFIX]\")
+-!!ENDIF
+-
+ !!IF !equals(TEMPLATE, aux)
+ # For backwards compatibility only. Use Qt5$${CMAKE_MODULE_NAME}_VERSION instead.
+ set(Qt5$${CMAKE_MODULE_NAME}_VERSION_STRING "$$eval(QT.$${MODULE}.VERSION)")
+@@ -52,11 +28,7 @@ endmacro()
+ macro(_populate_$${CMAKE_MODULE_NAME}_target_properties Configuration LIB_LOCATION IMPLIB_LOCATION)
+     set_property(TARGET Qt5::$${CMAKE_MODULE_NAME} APPEND PROPERTY IMPORTED_CONFIGURATIONS ${Configuration})
+ 
+-!!IF isEmpty(CMAKE_DLL_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_DLL_DIR}${LIB_LOCATION}\")
+-!!ELSE
+     set(imported_location \"$${CMAKE_DLL_DIR}${LIB_LOCATION}\")
+-!!ENDIF
+     _qt5_$${CMAKE_MODULE_NAME}_check_file_exists(${imported_location})
+     set_target_properties(Qt5::$${CMAKE_MODULE_NAME} PROPERTIES
+         \"INTERFACE_LINK_LIBRARIES\" \"${_Qt5$${CMAKE_MODULE_NAME}_LIB_DEPENDENCIES}\"
+@@ -69,11 +41,7 @@ macro(_populate_$${CMAKE_MODULE_NAME}_target_properties Configuration LIB_LOCATI
+     )
+ 
+ !!IF !isEmpty(CMAKE_WINDOWS_BUILD)
+-!!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-    set(imported_implib \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}${IMPLIB_LOCATION}\")
+-!!ELSE
+     set(imported_implib \"IMPORTED_IMPLIB_${Configuration}\" \"$${CMAKE_LIB_DIR}${IMPLIB_LOCATION}\")
+-!!ENDIF
+     _qt5_$${CMAKE_MODULE_NAME}_check_file_exists(${imported_implib})
+     if(NOT \"${IMPLIB_LOCATION}\" STREQUAL \"\")
+         set_target_properties(Qt5::$${CMAKE_MODULE_NAME} PROPERTIES
+@@ -89,24 +57,13 @@ if (NOT TARGET Qt5::$${CMAKE_MODULE_NAME})
+ !!IF !no_module_headers
+ !!IF !isEmpty(CMAKE_BUILD_IS_FRAMEWORK)
+     set(_Qt5$${CMAKE_MODULE_NAME}_OWN_INCLUDE_DIRS
+-      \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework\"
+-      \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework/Headers\"
++      \"$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework\"
++      \"$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework/Headers\"
+     )
+ !!IF isEmpty(CMAKE_NO_PRIVATE_INCLUDES)
+     set(Qt5$${CMAKE_MODULE_NAME}_PRIVATE_INCLUDE_DIRS
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework/Versions/$$section(VERSION, ., 0, 0)/Headers/$$VERSION/\"
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework/Versions/$$section(VERSION, ., 0, 0)/Headers/$$VERSION/$${MODULE_INCNAME}\"
+-    )
+-!!ELSE
+-    set(Qt5$${CMAKE_MODULE_NAME}_PRIVATE_INCLUDE_DIRS \"\")
+-!!ENDIF
+-!!ELSE
+-!!IF isEmpty(CMAKE_INCLUDE_DIR_IS_ABSOLUTE)
+-    set(_Qt5$${CMAKE_MODULE_NAME}_OWN_INCLUDE_DIRS \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$$CMAKE_INCLUDE_DIR\" \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_INCLUDE_DIR}$${MODULE_INCNAME}\")
+-!!IF isEmpty(CMAKE_NO_PRIVATE_INCLUDES)
+-    set(Qt5$${CMAKE_MODULE_NAME}_PRIVATE_INCLUDE_DIRS
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_INCLUDE_DIR}$${MODULE_INCNAME}/$$VERSION\"
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_INCLUDE_DIR}$${MODULE_INCNAME}/$$VERSION/$${MODULE_INCNAME}\"
++        \"$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework/Versions/$$section(VERSION, ., 0, 0)/Headers/$$VERSION/\"
++        \"$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework/Versions/$$section(VERSION, ., 0, 0)/Headers/$$VERSION/$${MODULE_INCNAME}\"
+     )
+ !!ELSE
+     set(Qt5$${CMAKE_MODULE_NAME}_PRIVATE_INCLUDE_DIRS \"\")
+@@ -122,7 +79,6 @@ if (NOT TARGET Qt5::$${CMAKE_MODULE_NAME})
+     set(Qt5$${CMAKE_MODULE_NAME}_PRIVATE_INCLUDE_DIRS \"\")
+ !!ENDIF
+ !!ENDIF
+-!!ENDIF
+ !!IF !isEmpty(CMAKE_ADD_SOURCE_INCLUDE_DIRS)
+     include(\"${CMAKE_CURRENT_LIST_DIR}/ExtraSourceIncludes.cmake\" OPTIONAL)
+ !!ENDIF
+@@ -272,25 +228,13 @@ if (NOT TARGET Qt5::$${CMAKE_MODULE_NAME})
+ !!IF !isEmpty(CMAKE_FIND_OTHER_LIBRARY_BUILD)
+ !!IF isEmpty(CMAKE_DEBUG_TYPE)
+ !!IF !isEmpty(CMAKE_STATIC_WINDOWS_BUILD)
+-!!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-    if (EXISTS \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_IMPLIB_FILE_LOCATION_DEBUG}\" )
+-!!ELSE // CMAKE_LIB_DIR_IS_ABSOLUTE
+     if (EXISTS \"$${CMAKE_IMPLIB_FILE_LOCATION_DEBUG}\" )
+-!!ENDIF // CMAKE_LIB_DIR_IS_ABSOLUTE
+         _populate_$${CMAKE_MODULE_NAME}_target_properties(DEBUG \"$${CMAKE_IMPLIB_FILE_LOCATION_DEBUG}\" \"\" )
+ !!ELSE // CMAKE_STATIC_WINDOWS_BUILD
+     if (EXISTS
+-!!IF isEmpty(CMAKE_DLL_DIR_IS_ABSOLUTE)
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_DLL_DIR}$${CMAKE_LIB_FILE_LOCATION_DEBUG}\"
+-!!ELSE
+         \"$${CMAKE_LIB_FILE_LOCATION_DEBUG}\"
+-!!ENDIF
+       AND EXISTS
+-!!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_IMPLIB_FILE_LOCATION_DEBUG}\" )
+-!!ELSE
+         \"$${CMAKE_IMPLIB_FILE_LOCATION_DEBUG}\" )
+-!!ENDIF
+         _populate_$${CMAKE_MODULE_NAME}_target_properties(DEBUG \"$${CMAKE_LIB_FILE_LOCATION_DEBUG}\" \"$${CMAKE_IMPLIB_FILE_LOCATION_DEBUG}\" )
+ !!ENDIF // CMAKE_STATIC_WINDOWS_BUILD
+     endif()
+@@ -309,25 +253,13 @@ if (NOT TARGET Qt5::$${CMAKE_MODULE_NAME})
+ !!IF !isEmpty(CMAKE_FIND_OTHER_LIBRARY_BUILD)
+ !!IF isEmpty(CMAKE_RELEASE_TYPE)
+ !!IF !isEmpty(CMAKE_STATIC_WINDOWS_BUILD)
+-!!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-    if (EXISTS \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_IMPLIB_FILE_LOCATION_RELEASE}\" )
+-!!ELSE // CMAKE_LIB_DIR_IS_ABSOLUTE
+     if (EXISTS \"$${CMAKE_IMPLIB_FILE_LOCATION_RELEASE}\" )
+-!!ENDIF // CMAKE_LIB_DIR_IS_ABSOLUTE
+         _populate_$${CMAKE_MODULE_NAME}_target_properties(RELEASE \"$${CMAKE_IMPLIB_FILE_LOCATION_RELEASE}\" \"\" )
+ !!ELSE // CMAKE_STATIC_WINDOWS_BUILD
+     if (EXISTS
+-!!IF isEmpty(CMAKE_DLL_DIR_IS_ABSOLUTE)
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_DLL_DIR}$${CMAKE_LIB_FILE_LOCATION_RELEASE}\"
+-!!ELSE
+         \"$${CMAKE_LIB_FILE_LOCATION_RELEASE}\"
+-!!ENDIF
+       AND EXISTS
+-!!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_IMPLIB_FILE_LOCATION_RELEASE}\" )
+-!!ELSE
+         \"$${CMAKE_IMPLIB_FILE_LOCATION_RELEASE}\" )
+-!!ENDIF
+         _populate_$${CMAKE_MODULE_NAME}_target_properties(RELEASE \"$${CMAKE_LIB_FILE_LOCATION_RELEASE}\" \"$${CMAKE_IMPLIB_FILE_LOCATION_RELEASE}\" )
+ !!ENDIF // CMAKE_STATIC_WINDOWS_BUILD
+     endif()
+@@ -346,11 +278,7 @@ if (NOT TARGET Qt5::$${CMAKE_MODULE_NAME})
+     macro(_populate_$${CMAKE_MODULE_NAME}_plugin_properties Plugin Configuration PLUGIN_LOCATION)
+         set_property(TARGET Qt5::${Plugin} APPEND PROPERTY IMPORTED_CONFIGURATIONS ${Configuration})
+ 
+-!!IF isEmpty(CMAKE_PLUGIN_DIR_IS_ABSOLUTE)
+-        set(imported_location \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_PLUGIN_DIR}${PLUGIN_LOCATION}\")
+-!!ELSE
+         set(imported_location \"$${CMAKE_PLUGIN_DIR}${PLUGIN_LOCATION}\")
+-!!ENDIF
+         _qt5_$${CMAKE_MODULE_NAME}_check_file_exists(${imported_location})
+         set_target_properties(Qt5::${Plugin} PROPERTIES
+             \"IMPORTED_LOCATION_${Configuration}\" ${imported_location}
+diff --git a/mkspecs/features/qml_module.prf b/mkspecs/features/qml_module.prf
+index 57cfec78b3..5cbd7c52ef 100644
+--- a/mkspecs/features/qml_module.prf
++++ b/mkspecs/features/qml_module.prf
+@@ -51,7 +51,7 @@ builtin_resources {
+ # Install rules
+ qmldir.base = $$qmldir_path
+ qmldir.files = $$qmldir_file
+-qmldir.path = $$[QT_INSTALL_QML]/$$TARGETPATH
++qmldir.path = $$NIX_OUTPUT_QML/$$TARGETPATH
+ INSTALLS += qmldir
+ 
+ qmlfiles.base = $$_PRO_FILE_PWD_
+diff --git a/mkspecs/features/qml_plugin.prf b/mkspecs/features/qml_plugin.prf
+index ad8ecdf5f1..804634b22e 100644
+--- a/mkspecs/features/qml_plugin.prf
++++ b/mkspecs/features/qml_plugin.prf
+@@ -50,7 +50,7 @@ load(qt_build_paths)
+ 
+ DESTDIR = $$MODULE_BASE_OUTDIR/qml/$$TARGETPATH
+ 
+-target.path = $$[QT_INSTALL_QML]/$$TARGETPATH
++target.path = $$NIX_OUTPUT_QML/$$TARGETPATH
+ INSTALLS += target
+ 
+ # Some final setup
+diff --git a/mkspecs/features/qt_app.prf b/mkspecs/features/qt_app.prf
+index 8354f30eea..62028fef8e 100644
+--- a/mkspecs/features/qt_app.prf
++++ b/mkspecs/features/qt_app.prf
+@@ -30,7 +30,7 @@ host_build:force_bootstrap {
+     target.path = $$[QT_HOST_BINS]
+ } else {
+     !build_pass:qtConfig(debug_and_release): CONFIG += release
+-    target.path = $$[QT_INSTALL_BINS]
++    target.path = $$NIX_OUTPUT_BIN/bin
+     CONFIG += relative_qt_rpath  # Qt's tools and apps should be relocatable
+ }
+ INSTALLS += target
+diff --git a/mkspecs/features/qt_build_paths.prf b/mkspecs/features/qt_build_paths.prf
+index 3bb3823a8e..655b7b7db8 100644
+--- a/mkspecs/features/qt_build_paths.prf
++++ b/mkspecs/features/qt_build_paths.prf
+@@ -24,6 +24,6 @@ exists($$MODULE_BASE_INDIR/.git): \
+ !force_independent {
+     # If the module is not built independently, everything ends up in qtbase.
+     # This is the case in non-prefix builds, except for selected modules.
+-    MODULE_BASE_OUTDIR = $$[QT_HOST_PREFIX]
+-    MODULE_QMAKE_OUTDIR = $$[QT_HOST_PREFIX]
++    MODULE_BASE_OUTDIR = $$NIX_OUTPUT_OUT
++    MODULE_QMAKE_OUTDIR = $$NIX_OUTPUT_OUT
+ }
+diff --git a/mkspecs/features/qt_docs.prf b/mkspecs/features/qt_docs.prf
+index 3b74cd4dd5..6bfbbe6e2d 100644
+--- a/mkspecs/features/qt_docs.prf
++++ b/mkspecs/features/qt_docs.prf
+@@ -45,7 +45,7 @@ QMAKE_DOCS_OUTPUTDIR = $$QMAKE_DOCS_BASE_OUTDIR/$$QMAKE_DOCS_TARGETDIR
+ 
+ QDOC += -outputdir $$shell_quote($$QMAKE_DOCS_OUTPUTDIR)
+ !build_online_docs: \
+-    QDOC += -installdir $$shell_quote($$[QT_INSTALL_DOCS])
++    QDOC += -installdir $$shell_quote($$NIX_OUTPUT_DOC)
+ PREP_DOC_INDEXES =
+ DOC_INDEXES =
+ !isEmpty(QTREPOS) {
+@@ -64,8 +64,8 @@ DOC_INDEXES =
+         DOC_INDEXES += -indexdir $$shell_quote($$qrep/doc)
+ } else {
+     prepare_docs: \
+-        PREP_DOC_INDEXES += -indexdir $$shell_quote($$[QT_INSTALL_DOCS/get])
+-    DOC_INDEXES += -indexdir $$shell_quote($$[QT_INSTALL_DOCS/get])
++        PREP_DOC_INDEXES += -indexdir $$shell_quote($$NIX_OUTPUT_DOC)
++    DOC_INDEXES += -indexdir $$shell_quote($$NIX_OUTPUT_DOC)
+ }
+ 
+ qtattributionsscanner.target = qtattributionsscanner
+@@ -88,12 +88,12 @@ prepare_docs {
+     qch_docs.commands = $$QHELPGENERATOR $$shell_quote($$QMAKE_DOCS_OUTPUTDIR/$${QMAKE_DOCS_TARGET}.qhp) -o $$shell_quote($$QMAKE_DOCS_BASE_OUTDIR/$${QMAKE_DOCS_TARGET}.qch)
+ 
+     inst_html_docs.files = $$QMAKE_DOCS_OUTPUTDIR
+-    inst_html_docs.path = $$[QT_INSTALL_DOCS]
++    inst_html_docs.path = $$NIX_OUTPUT_DOC
+     inst_html_docs.CONFIG += no_check_exist directory no_default_install no_build
+     INSTALLS += inst_html_docs
+ 
+     inst_qch_docs.files = $$QMAKE_DOCS_BASE_OUTDIR/$${QMAKE_DOCS_TARGET}.qch
+-    inst_qch_docs.path = $$[QT_INSTALL_DOCS]
++    inst_qch_docs.path = $$NIX_OUTPUT_DOC
+     inst_qch_docs.CONFIG += no_check_exist no_default_install no_build
+     INSTALLS += inst_qch_docs
+ 
+diff --git a/mkspecs/features/qt_example_installs.prf b/mkspecs/features/qt_example_installs.prf
+index 43b58817fe..e635b8f67a 100644
+--- a/mkspecs/features/qt_example_installs.prf
++++ b/mkspecs/features/qt_example_installs.prf
+@@ -88,7 +88,7 @@ sourcefiles += \
+     $$SOURCES $$HEADERS $$FORMS $$RESOURCES $$TRANSLATIONS \
+     $$DBUS_ADAPTORS $$DBUS_INTERFACES
+ addInstallFiles(sources.files, $$sourcefiles)
+-sources.path = $$[QT_INSTALL_EXAMPLES]/$$probase
++sources.path = $$NIX_OUTPUT_DEV/share/examples/$$probase
+ INSTALLS += sources
+ 
+ check_examples {
+diff --git a/mkspecs/features/qt_functions.prf b/mkspecs/features/qt_functions.prf
+index 1903e509c8..1dc117a388 100644
+--- a/mkspecs/features/qt_functions.prf
++++ b/mkspecs/features/qt_functions.prf
+@@ -69,19 +69,22 @@ defineTest(qtHaveModule) {
+ defineTest(qtPrepareTool) {
+     cmd = $$eval(QT_TOOL.$${2}.binary)
+     isEmpty(cmd) {
+-        cmd = $$[QT_HOST_BINS]/$$2
+-        exists($${cmd}.pl) {
+-            $${1}_EXE = $${cmd}.pl
+-            cmd = perl -w $$system_path($${cmd}.pl)
+-        } else: contains(QMAKE_HOST.os, Windows) {
+-            $${1}_EXE = $${cmd}.exe
+-            cmd = $$system_path($${cmd}.exe)
+-        } else:contains(QMAKE_HOST.os, Darwin) {
+-            BUNDLENAME = $${cmd}.app/Contents/MacOS/$$2
+-            exists($$BUNDLENAME) {
+-                cmd = $$BUNDLENAME
++        cmd = $$system("command -v $${2}")
++        isEmpty(cmd) {
++            cmd = $$system("command -v $${2}.pl")
++            !isEmpty(cmd) {
++                $${1}_EXE = $$cmd
++                cmd = perl -w $$system_path($${cmd})
++            } else: contains(QMAKE_HOST.os, Windows) {
++                cmd = $$system("command -v $${2}.exe")
++                $${1}_EXE = $$cmd
++            } else: contains(QMAKE_HOST.os, Darwin) {
++                cmd = $$system("command -v $${2}.app")
++                !isEmpty(cmd) {
++                    cmd = $${cmd}/Contents/MacOS/$${2}
++                    $${1}_EXE = $$cmd
++                }
+             }
+-            $${1}_EXE = $$cmd
+         } else {
+             $${1}_EXE = $$cmd
+         }
+diff --git a/mkspecs/features/qt_installs.prf b/mkspecs/features/qt_installs.prf
+index 1ebca17366..b784441da0 100644
+--- a/mkspecs/features/qt_installs.prf
++++ b/mkspecs/features/qt_installs.prf
+@@ -12,16 +12,10 @@
+ #library
+ !qt_no_install_library {
+     win32 {
+-       host_build: \
+-           dlltarget.path = $$[QT_HOST_BINS]
+-       else: \
+-           dlltarget.path = $$[QT_INSTALL_BINS]
++        dlltarget.path = $$NIX_OUTPUT_BIN/bin
+        INSTALLS += dlltarget
+     }
+-    host_build: \
+-        target.path = $$[QT_HOST_LIBS]
+-    else: \
+-        target.path = $$[QT_INSTALL_LIBS]
++    target.path = $$NIX_OUTPUT_OUT/lib
+     !static: target.CONFIG = no_dll
+     INSTALLS += target
+ }
+@@ -29,35 +23,35 @@
+ #headers
+ qt_install_headers {
+     gen_headers.files = $$SYNCQT.GENERATED_HEADER_FILES
+-    gen_headers.path = $$[QT_INSTALL_HEADERS]/$$MODULE_INCNAME
++    gen_headers.path = $$NIX_OUTPUT_DEV/include/$$MODULE_INCNAME
+     INSTALLS += gen_headers
+ 
+     targ_headers.files = $$SYNCQT.HEADER_FILES $$SYNCQT.INJECTED_HEADER_FILES
+-    targ_headers.path = $$[QT_INSTALL_HEADERS]/$$MODULE_INCNAME
++    targ_headers.path = $$NIX_OUTPUT_DEV/include/$$MODULE_INCNAME
+     INSTALLS += targ_headers
+ 
+     private_headers.files = $$SYNCQT.PRIVATE_HEADER_FILES $$SYNCQT.INJECTED_PRIVATE_HEADER_FILES
+-    private_headers.path = $$[QT_INSTALL_HEADERS]/$$MODULE_INCNAME/$$VERSION/$$MODULE_INCNAME/private
++    private_headers.path = $$NIX_OUTPUT_DEV/include/$$MODULE_INCNAME/$$VERSION/$$MODULE_INCNAME/private
+     generated_privates: \
+         private_headers.CONFIG += no_check_exist
+     INSTALLS += private_headers
+ 
+     qpa_headers.files = $$SYNCQT.QPA_HEADER_FILES
+-    qpa_headers.path = $$[QT_INSTALL_HEADERS]/$$MODULE_INCNAME/$$VERSION/$$MODULE_INCNAME/qpa
++    qpa_headers.path = $$NIX_OUTPUT_DEV/include/$$MODULE_INCNAME/$$VERSION/$$MODULE_INCNAME/qpa
+     INSTALLS += qpa_headers
+ }
+ 
+ #module
+ qt_install_module {
+     !isEmpty(MODULE_PRI) {
+-        pritarget.path = $$[QT_HOST_DATA]/mkspecs/modules
++        pritarget.path = $$NIX_OUTPUT_DEV/mkspecs/modules
+         pritarget.files = $$MODULE_PRI
+         INSTALLS += pritarget
+     } else: isEmpty(MODULE_PRIVATE_PRI) {
+         warning("Project $$basename(_PRO_FILE_) is a module, but has not defined MODULE_PRI, which is required for Qt to expose the module to other projects.")
+     }
+     !isEmpty(MODULE_PRIVATE_PRI) {
+-        privpritarget.path = $$[QT_HOST_DATA]/mkspecs/modules
++        privpritarget.path = $$NIX_OUTPUT_DEV/mkspecs/modules
+         privpritarget.files = $$MODULE_PRIVATE_PRI
+         INSTALLS += privpritarget
+     }
+diff --git a/mkspecs/features/qt_plugin.prf b/mkspecs/features/qt_plugin.prf
+index 40528a65e2..903f795284 100644
+--- a/mkspecs/features/qt_plugin.prf
++++ b/mkspecs/features/qt_plugin.prf
+@@ -88,7 +88,7 @@ CONFIG(static, static|shared)|prefix_build {
+     }
+ }
+ 
+-target.path = $$[QT_INSTALL_PLUGINS]/$$PLUGIN_TYPE
++target.path = $$NIX_OUTPUT_PLUGIN/$$PLUGIN_TYPE
+ INSTALLS += target
+ 
+ TARGET = $$qt5LibraryTarget($$TARGET)
+-- 
+2.29.3
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0004-qtbase-replace-libdir.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0004-qtbase-replace-libdir.patch
new file mode 100644
index 000000000000..f2cf54880d4a
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0004-qtbase-replace-libdir.patch
@@ -0,0 +1,68 @@
+From 492f6555bb09f207c83387441f0f23ba4602dfff Mon Sep 17 00:00:00 2001
+From: Thomas Tuegel <ttuegel@mailbox.org>
+Date: Wed, 18 Sep 2019 05:39:50 -0500
+Subject: [PATCH 04/12] qtbase-replace-libdir
+
+---
+ mkspecs/features/qt_common.prf | 20 ++------------------
+ mkspecs/features/qt_module.prf |  5 +----
+ 2 files changed, 3 insertions(+), 22 deletions(-)
+
+diff --git a/mkspecs/features/qt_common.prf b/mkspecs/features/qt_common.prf
+index caecb68a84..d3aa3ba570 100644
+--- a/mkspecs/features/qt_common.prf
++++ b/mkspecs/features/qt_common.prf
+@@ -30,32 +30,16 @@ contains(TEMPLATE, .*lib) {
+         rplbase = $$dirname(_QMAKE_SUPER_CACHE_)/[^/][^/]*
+     else: \
+         rplbase = $$MODULE_BASE_OUTDIR
+-    host_build {
+-        qqt_libdir = \$\$\$\$[QT_HOST_LIBS]
+-        qt_libdir = $$[QT_HOST_LIBS]
+-    } else {
+-        qqt_libdir = \$\$\$\$[QT_INSTALL_LIBS]
+-        qt_libdir = $$[QT_INSTALL_LIBS]
+-    }
++    qt_libdir = $$NIX_OUTPUT_OUT/lib
+     contains(QMAKE_DEFAULT_LIBDIRS, $$qt_libdir) {
+-        lib_replace0.match = $$rplbase/lib/
+-        lib_replace0.replace = $$qqt_libdir/
+-        lib_replace0.CONFIG = path
+-        QMAKE_PRL_INSTALL_REPLACE += lib_replace0
+         lib_replace.match = "[^ ']*$$rplbase/lib"
+         lib_replace.replace =
+     } else {
+         lib_replace.match = $$rplbase/lib
+-        lib_replace.replace = $$qqt_libdir
++        lib_replace.replace = $$qt_libdir
+     }
+     lib_replace.CONFIG = path
+     QMAKE_PRL_INSTALL_REPLACE += lib_replace
+-    !equals(qt_libdir, $$rplbase/lib) {
+-        qtlibdir_replace.match = $$qt_libdir
+-        qtlibdir_replace.replace = $$qqt_libdir
+-        qtlibdir_replace.CONFIG = path
+-        QMAKE_PRL_INSTALL_REPLACE += qtlibdir_replace
+-    }
+ }
+ 
+ # The remainder of this file must not apply to host tools/libraries,
+diff --git a/mkspecs/features/qt_module.prf b/mkspecs/features/qt_module.prf
+index ee7de22059..9015b30d73 100644
+--- a/mkspecs/features/qt_module.prf
++++ b/mkspecs/features/qt_module.prf
+@@ -303,10 +303,7 @@ load(qt_targets)
+ }
+ !lib_bundle:unix {
+     CONFIG += create_libtool
+-    host_build: \
+-        QMAKE_LIBTOOL_LIBDIR = $$[QT_HOST_LIBS]
+-    else: \
+-        QMAKE_LIBTOOL_LIBDIR = "=$$[QT_INSTALL_LIBS/raw]"
++    QMAKE_LIBTOOL_LIBDIR = $$NIX_OUTPUT_OUT/lib
+     !isEmpty(lib_replace0.match) {
+         ltlib_replace0.match = $$lib_replace0.match
+         ltlib_replace0.replace = $$QMAKE_LIBTOOL_LIBDIR/
+-- 
+2.23.GIT
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0005-qtbase-cmake.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0005-qtbase-cmake.patch
new file mode 100644
index 000000000000..64a88f300d84
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0005-qtbase-cmake.patch
@@ -0,0 +1,194 @@
+From 6f53835deae80b28ec5c1c9a5c0294bbcc87f91b Mon Sep 17 00:00:00 2001
+From: Thomas Tuegel <ttuegel@mailbox.org>
+Date: Tue, 17 Sep 2019 05:34:28 -0500
+Subject: [PATCH 05/12] qtbase-cmake
+
+---
+ mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in  |  2 +-
+ mkspecs/features/data/cmake/Qt5PluginTarget.cmake.in |  4 ++--
+ src/corelib/Qt5CoreConfigExtras.cmake.in             | 10 +++++-----
+ src/corelib/Qt5CoreConfigExtrasMkspecDir.cmake.in    |  2 +-
+ .../Qt5CoreConfigExtrasMkspecDirForInstall.cmake.in  |  2 +-
+ src/dbus/Qt5DBusConfigExtras.cmake.in                | 12 ++----------
+ src/gui/Qt5GuiConfigExtras.cmake.in                  |  6 +++---
+ src/widgets/Qt5WidgetsConfigExtras.cmake.in          |  2 +-
+ 8 files changed, 16 insertions(+), 24 deletions(-)
+
+diff --git a/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in b/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in
+index c60ef16e64..e354ab9156 100644
+--- a/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in
++++ b/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in
+@@ -278,7 +278,7 @@ if (NOT TARGET Qt5::$${CMAKE_MODULE_NAME})
+     macro(_populate_$${CMAKE_MODULE_NAME}_plugin_properties Plugin Configuration PLUGIN_LOCATION)
+         set_property(TARGET Qt5::${Plugin} APPEND PROPERTY IMPORTED_CONFIGURATIONS ${Configuration})
+ 
+-        set(imported_location \"$${CMAKE_PLUGIN_DIR}${PLUGIN_LOCATION}\")
++        set(imported_location \"${PLUGIN_LOCATION}\")
+         _qt5_$${CMAKE_MODULE_NAME}_check_file_exists(${imported_location})
+         set_target_properties(Qt5::${Plugin} PROPERTIES
+             \"IMPORTED_LOCATION_${Configuration}\" ${imported_location}
+diff --git a/mkspecs/features/data/cmake/Qt5PluginTarget.cmake.in b/mkspecs/features/data/cmake/Qt5PluginTarget.cmake.in
+index 5baf0fdb10..3583745aea 100644
+--- a/mkspecs/features/data/cmake/Qt5PluginTarget.cmake.in
++++ b/mkspecs/features/data/cmake/Qt5PluginTarget.cmake.in
+@@ -2,10 +2,10 @@
+ add_library(Qt5::$$CMAKE_PLUGIN_NAME MODULE IMPORTED)
+ 
+ !!IF !isEmpty(CMAKE_RELEASE_TYPE)
+-_populate_$${CMAKE_MODULE_NAME}_plugin_properties($$CMAKE_PLUGIN_NAME RELEASE \"$${CMAKE_PLUGIN_LOCATION_RELEASE}\")
++_populate_$${CMAKE_MODULE_NAME}_plugin_properties($$CMAKE_PLUGIN_NAME RELEASE \"$${CMAKE_PLUGIN_DIR}$${CMAKE_PLUGIN_LOCATION_RELEASE}\")
+ !!ENDIF
+ !!IF !isEmpty(CMAKE_DEBUG_TYPE)
+-_populate_$${CMAKE_MODULE_NAME}_plugin_properties($$CMAKE_PLUGIN_NAME DEBUG \"$${CMAKE_PLUGIN_LOCATION_DEBUG}\")
++_populate_$${CMAKE_MODULE_NAME}_plugin_properties($$CMAKE_PLUGIN_NAME DEBUG \"$${CMAKE_PLUGIN_DIR}$${CMAKE_PLUGIN_LOCATION_DEBUG}\")
+ !!ENDIF
+ 
+ list(APPEND Qt5$${CMAKE_MODULE_NAME}_PLUGINS Qt5::$$CMAKE_PLUGIN_NAME)
+diff --git a/src/corelib/Qt5CoreConfigExtras.cmake.in b/src/corelib/Qt5CoreConfigExtras.cmake.in
+index e0652fdcf9..450b2a2d28 100644
+--- a/src/corelib/Qt5CoreConfigExtras.cmake.in
++++ b/src/corelib/Qt5CoreConfigExtras.cmake.in
+@@ -3,7 +3,7 @@ if (NOT TARGET Qt5::qmake)
+     add_executable(Qt5::qmake IMPORTED)
+ 
+ !!IF isEmpty(CMAKE_BIN_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5Core_install_prefix}/$${CMAKE_BIN_DIR}qmake$$CMAKE_BIN_SUFFIX\")
++    set(imported_location \"$$NIX_OUTPUT_DEV/$${CMAKE_BIN_DIR}qmake$$CMAKE_BIN_SUFFIX\")
+ !!ELSE
+     set(imported_location \"$${CMAKE_BIN_DIR}qmake$$CMAKE_BIN_SUFFIX\")
+ !!ENDIF
+@@ -18,7 +18,7 @@ if (NOT TARGET Qt5::moc)
+     add_executable(Qt5::moc IMPORTED)
+ 
+ !!IF isEmpty(CMAKE_BIN_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5Core_install_prefix}/$${CMAKE_BIN_DIR}moc$$CMAKE_BIN_SUFFIX\")
++    set(imported_location \"$$NIX_OUTPUT_DEV/$${CMAKE_BIN_DIR}moc$$CMAKE_BIN_SUFFIX\")
+ !!ELSE
+     set(imported_location \"$${CMAKE_BIN_DIR}moc$$CMAKE_BIN_SUFFIX\")
+ !!ENDIF
+@@ -35,7 +35,7 @@ if (NOT TARGET Qt5::rcc)
+     add_executable(Qt5::rcc IMPORTED)
+ 
+ !!IF isEmpty(CMAKE_BIN_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5Core_install_prefix}/$${CMAKE_BIN_DIR}rcc$$CMAKE_BIN_SUFFIX\")
++    set(imported_location \"$$NIX_OUTPUT_DEV/$${CMAKE_BIN_DIR}rcc$$CMAKE_BIN_SUFFIX\")
+ !!ELSE
+     set(imported_location \"$${CMAKE_BIN_DIR}rcc$$CMAKE_BIN_SUFFIX\")
+ !!ENDIF
+@@ -116,7 +116,7 @@ if (NOT TARGET Qt5::WinMain)
+ !!IF !isEmpty(CMAKE_RELEASE_TYPE)
+     set_property(TARGET Qt5::WinMain APPEND PROPERTY IMPORTED_CONFIGURATIONS RELEASE)
+ !!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5Core_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_WINMAIN_FILE_LOCATION_RELEASE}\")
++    set(imported_location \"$$NIX_OUTPUT_DEV/$${CMAKE_LIB_DIR}$${CMAKE_WINMAIN_FILE_LOCATION_RELEASE}\")
+ !!ELSE
+     set(imported_location \"$${CMAKE_LIB_DIR}$${CMAKE_WINMAIN_FILE_LOCATION_RELEASE}\")
+ !!ENDIF
+@@ -130,7 +130,7 @@ if (NOT TARGET Qt5::WinMain)
+     set_property(TARGET Qt5::WinMain APPEND PROPERTY IMPORTED_CONFIGURATIONS DEBUG)
+ 
+ !!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5Core_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_WINMAIN_FILE_LOCATION_DEBUG}\")
++    set(imported_location \"$$NIX_OUTPUT_DEV/$${CMAKE_LIB_DIR}$${CMAKE_WINMAIN_FILE_LOCATION_DEBUG}\")
+ !!ELSE
+     set(imported_location \"$${CMAKE_LIB_DIR}$${CMAKE_WINMAIN_FILE_LOCATION_DEBUG}\")
+ !!ENDIF
+diff --git a/src/corelib/Qt5CoreConfigExtrasMkspecDir.cmake.in b/src/corelib/Qt5CoreConfigExtrasMkspecDir.cmake.in
+index c357237d0e..6f0c75de3c 100644
+--- a/src/corelib/Qt5CoreConfigExtrasMkspecDir.cmake.in
++++ b/src/corelib/Qt5CoreConfigExtrasMkspecDir.cmake.in
+@@ -1,6 +1,6 @@
+ 
+ !!IF isEmpty(CMAKE_HOST_DATA_DIR_IS_ABSOLUTE)
+-set(_qt5_corelib_extra_includes \"${_qt5Core_install_prefix}/$${CMAKE_HOST_DATA_DIR}/mkspecs/$${CMAKE_MKSPEC}\")
++set(_qt5_corelib_extra_includes \"$$NIX_OUTPUT_DEV/$${CMAKE_HOST_DATA_DIR}/mkspecs/$${CMAKE_MKSPEC}\")
+ !!ELSE
+ set(_qt5_corelib_extra_includes \"$${CMAKE_HOST_DATA_DIR}mkspecs/$${CMAKE_MKSPEC}\")
+ !!ENDIF
+diff --git a/src/corelib/Qt5CoreConfigExtrasMkspecDirForInstall.cmake.in b/src/corelib/Qt5CoreConfigExtrasMkspecDirForInstall.cmake.in
+index 706304cf34..546420f6ad 100644
+--- a/src/corelib/Qt5CoreConfigExtrasMkspecDirForInstall.cmake.in
++++ b/src/corelib/Qt5CoreConfigExtrasMkspecDirForInstall.cmake.in
+@@ -1,6 +1,6 @@
+ 
+ !!IF isEmpty(CMAKE_INSTALL_DATA_DIR_IS_ABSOLUTE)
+-set(_qt5_corelib_extra_includes \"${_qt5Core_install_prefix}/$${CMAKE_INSTALL_DATA_DIR}/mkspecs/$${CMAKE_MKSPEC}\")
++set(_qt5_corelib_extra_includes \"$$NIX_OUTPUT_DEV/$${CMAKE_INSTALL_DATA_DIR}/mkspecs/$${CMAKE_MKSPEC}\")
+ !!ELSE
+ set(_qt5_corelib_extra_includes \"$${CMAKE_INSTALL_DATA_DIR}mkspecs/$${CMAKE_MKSPEC}\")
+ !!ENDIF
+diff --git a/src/dbus/Qt5DBusConfigExtras.cmake.in b/src/dbus/Qt5DBusConfigExtras.cmake.in
+index 1d947159e2..b36865fc48 100644
+--- a/src/dbus/Qt5DBusConfigExtras.cmake.in
++++ b/src/dbus/Qt5DBusConfigExtras.cmake.in
+@@ -2,11 +2,7 @@
+ if (NOT TARGET Qt5::qdbuscpp2xml)
+     add_executable(Qt5::qdbuscpp2xml IMPORTED)
+ 
+-!!IF isEmpty(CMAKE_BIN_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5DBus_install_prefix}/$${CMAKE_BIN_DIR}qdbuscpp2xml$$CMAKE_BIN_SUFFIX\")
+-!!ELSE
+-    set(imported_location \"$${CMAKE_BIN_DIR}qdbuscpp2xml$$CMAKE_BIN_SUFFIX\")
+-!!ENDIF
++    set(imported_location \"$$NIX_OUTPUT_DEV/bin/qdbuscpp2xml$$CMAKE_BIN_SUFFIX\")
+     _qt5_DBus_check_file_exists(${imported_location})
+ 
+     set_target_properties(Qt5::qdbuscpp2xml PROPERTIES
+@@ -17,11 +13,7 @@ endif()
+ if (NOT TARGET Qt5::qdbusxml2cpp)
+     add_executable(Qt5::qdbusxml2cpp IMPORTED)
+ 
+-!!IF isEmpty(CMAKE_BIN_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5DBus_install_prefix}/$${CMAKE_BIN_DIR}qdbusxml2cpp$$CMAKE_BIN_SUFFIX\")
+-!!ELSE
+-    set(imported_location \"$${CMAKE_BIN_DIR}qdbusxml2cpp$$CMAKE_BIN_SUFFIX\")
+-!!ENDIF
++    set(imported_location \"$$NIX_OUTPUT_DEV/bin/qdbusxml2cpp$$CMAKE_BIN_SUFFIX\")
+     _qt5_DBus_check_file_exists(${imported_location})
+ 
+     set_target_properties(Qt5::qdbusxml2cpp PROPERTIES
+diff --git a/src/gui/Qt5GuiConfigExtras.cmake.in b/src/gui/Qt5GuiConfigExtras.cmake.in
+index 84dbbfebd4..8ad0720c5c 100644
+--- a/src/gui/Qt5GuiConfigExtras.cmake.in
++++ b/src/gui/Qt5GuiConfigExtras.cmake.in
+@@ -2,7 +2,7 @@
+ !!IF !isEmpty(CMAKE_ANGLE_EGL_DLL_RELEASE)
+ 
+ !!IF isEmpty(CMAKE_INCLUDE_DIR_IS_ABSOLUTE)
+-set(Qt5Gui_EGL_INCLUDE_DIRS \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$$CMAKE_INCLUDE_DIR/QtANGLE\")
++set(Qt5Gui_EGL_INCLUDE_DIRS \"$$NIX_OUTPUT_DEV/$$CMAKE_INCLUDE_DIR/QtANGLE\")
+ !!ELSE
+ set(Qt5Gui_EGL_INCLUDE_DIRS \"$$CMAKE_INCLUDE_DIR/QtANGLE\")
+ !!ENDIF
+@@ -17,13 +17,13 @@ macro(_populate_qt5gui_gl_target_properties TargetName Configuration LIB_LOCATIO
+     set_property(TARGET Qt5::${TargetName} APPEND PROPERTY IMPORTED_CONFIGURATIONS ${Configuration})
+ 
+ !!IF isEmpty(CMAKE_DLL_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5Gui_install_prefix}/$${CMAKE_DLL_DIR}${LIB_LOCATION}\")
++    set(imported_location \"$$NIX_OUTPUT_OUT/$${CMAKE_DLL_DIR}${LIB_LOCATION}\")
+ !!ELSE
+     set(imported_location \"$${CMAKE_DLL_DIR}${LIB_LOCATION}\")
+ !!ENDIF
+ 
+ !!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-    set(imported_implib \"${_qt5Gui_install_prefix}/$${CMAKE_LIB_DIR}${IMPLIB_LOCATION}\")
++    set(imported_implib \"$$NIX_OUTPUT_OUT/$${CMAKE_LIB_DIR}${IMPLIB_LOCATION}\")
+ !!ELSE
+     set(imported_implib \"$${CMAKE_LIB_DIR}${IMPLIB_LOCATION}\")
+ !!ENDIF
+diff --git a/src/widgets/Qt5WidgetsConfigExtras.cmake.in b/src/widgets/Qt5WidgetsConfigExtras.cmake.in
+index 99d87e2e46..a4eab2aa72 100644
+--- a/src/widgets/Qt5WidgetsConfigExtras.cmake.in
++++ b/src/widgets/Qt5WidgetsConfigExtras.cmake.in
+@@ -3,7 +3,7 @@ if (NOT TARGET Qt5::uic)
+     add_executable(Qt5::uic IMPORTED)
+ 
+ !!IF isEmpty(CMAKE_BIN_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5Widgets_install_prefix}/$${CMAKE_BIN_DIR}uic$$CMAKE_BIN_SUFFIX\")
++    set(imported_location \"$$NIX_OUTPUT_DEV/$${CMAKE_BIN_DIR}uic$$CMAKE_BIN_SUFFIX\")
+ !!ELSE
+     set(imported_location \"$${CMAKE_BIN_DIR}uic$$CMAKE_BIN_SUFFIX\")
+ !!ENDIF
+-- 
+2.23.GIT
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0006-qtbase-gtk3.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0006-qtbase-gtk3.patch
new file mode 100644
index 000000000000..ed1c61e76787
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0006-qtbase-gtk3.patch
@@ -0,0 +1,48 @@
+From 5bf1785809baf6be7fb5904ce6cefdb761f2c278 Mon Sep 17 00:00:00 2001
+From: Thomas Tuegel <ttuegel@mailbox.org>
+Date: Tue, 17 Sep 2019 05:35:33 -0500
+Subject: [PATCH 06/12] qtbase-gtk3
+
+---
+ src/plugins/platformthemes/gtk3/main.cpp | 17 ++++++++++++++++-
+ 1 file changed, 16 insertions(+), 1 deletion(-)
+
+diff --git a/src/plugins/platformthemes/gtk3/main.cpp b/src/plugins/platformthemes/gtk3/main.cpp
+index fb1c425d8e..bb8bab9795 100644
+--- a/src/plugins/platformthemes/gtk3/main.cpp
++++ b/src/plugins/platformthemes/gtk3/main.cpp
+@@ -39,6 +39,7 @@
+ 
+ #include <qpa/qplatformthemeplugin.h>
+ #include "qgtk3theme.h"
++#include <QFile>
+ 
+ QT_BEGIN_NAMESPACE
+ 
+@@ -54,8 +55,22 @@ public:
+ QPlatformTheme *QGtk3ThemePlugin::create(const QString &key, const QStringList &params)
+ {
+     Q_UNUSED(params);
+-    if (!key.compare(QLatin1String(QGtk3Theme::name), Qt::CaseInsensitive))
++    if (!key.compare(QLatin1String(QGtk3Theme::name), Qt::CaseInsensitive)) {
++
++#ifdef NIXPKGS_QGTK3_XDG_DATA_DIRS
++        QStringList XDG_DATA_DIRS = QFile::decodeName(qgetenv("XDG_DATA_DIRS")).split(':');
++        XDG_DATA_DIRS << QLatin1String(NIXPKGS_QGTK3_XDG_DATA_DIRS);
++        qputenv("XDG_DATA_DIRS", QFile::encodeName(XDG_DATA_DIRS.join(':')));
++#endif
++
++#ifdef NIXPKGS_QGTK3_GIO_EXTRA_MODULES
++        QStringList GIO_EXTRA_MODULES = QFile::decodeName(qgetenv("GIO_EXTRA_MODULES")).split(':');
++        GIO_EXTRA_MODULES << QLatin1String(NIXPKGS_QGTK3_GIO_EXTRA_MODULES);
++        qputenv("GIO_EXTRA_MODULES", QFile::encodeName(GIO_EXTRA_MODULES.join(':')));
++#endif
++
+         return new QGtk3Theme;
++    }
+ 
+     return 0;
+ }
+-- 
+2.23.GIT
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0007-qtbase-xcursor.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0007-qtbase-xcursor.patch
new file mode 100644
index 000000000000..2fd9e9509d63
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0007-qtbase-xcursor.patch
@@ -0,0 +1,29 @@
+From 35e80f303ae6a6c4c53ba8eb3d84574cc03d68d8 Mon Sep 17 00:00:00 2001
+From: Thomas Tuegel <ttuegel@mailbox.org>
+Date: Tue, 17 Sep 2019 05:35:58 -0500
+Subject: [PATCH 07/12] qtbase-xcursor
+
+---
+ src/plugins/platforms/xcb/qxcbcursor.cpp | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/plugins/platforms/xcb/qxcbcursor.cpp b/src/plugins/platforms/xcb/qxcbcursor.cpp
+index fbadab4d50..c83ce0af5b 100644
+--- a/src/plugins/platforms/xcb/qxcbcursor.cpp
++++ b/src/plugins/platforms/xcb/qxcbcursor.cpp
+@@ -317,10 +317,10 @@ QXcbCursor::QXcbCursor(QXcbConnection *conn, QXcbScreen *screen)
+ #if QT_CONFIG(xcb_xlib) && QT_CONFIG(library)
+     static bool function_ptrs_not_initialized = true;
+     if (function_ptrs_not_initialized) {
+-        QLibrary xcursorLib(QLatin1String("Xcursor"), 1);
++        QLibrary xcursorLib(QLatin1String(NIXPKGS_LIBXCURSOR), 1);
+         bool xcursorFound = xcursorLib.load();
+         if (!xcursorFound) { // try without the version number
+-            xcursorLib.setFileName(QLatin1String("Xcursor"));
++            xcursorLib.setFileName(QLatin1String(NIXPKGS_LIBXCURSOR));
+             xcursorFound = xcursorLib.load();
+         }
+         if (xcursorFound) {
+-- 
+2.23.GIT
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0008-qtbase-xcompose.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0008-qtbase-xcompose.patch
new file mode 100644
index 000000000000..af45be94fecb
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0008-qtbase-xcompose.patch
@@ -0,0 +1,30 @@
+From b7c1c103ba04e76ae498f87ca9ef2c4e09e36d7e Mon Sep 17 00:00:00 2001
+From: Thomas Tuegel <ttuegel@mailbox.org>
+Date: Tue, 17 Sep 2019 05:36:10 -0500
+Subject: [PATCH 08/12] qtbase-xcompose
+
+---
+ .../compose/generator/qtablegenerator.cpp                    | 5 +----
+ 1 file changed, 1 insertion(+), 4 deletions(-)
+
+diff --git a/src/plugins/platforminputcontexts/compose/generator/qtablegenerator.cpp b/src/plugins/platforminputcontexts/compose/generator/qtablegenerator.cpp
+index b5a0a5bbeb..6c20305f4d 100644
+--- a/src/plugins/platforminputcontexts/compose/generator/qtablegenerator.cpp
++++ b/src/plugins/platforminputcontexts/compose/generator/qtablegenerator.cpp
+@@ -265,12 +265,9 @@ void TableGenerator::initPossibleLocations()
+     m_possibleLocations.reserve(7);
+     if (qEnvironmentVariableIsSet("QTCOMPOSE"))
+         m_possibleLocations.append(QString::fromLocal8Bit(qgetenv("QTCOMPOSE")));
+-    m_possibleLocations.append(QStringLiteral("/usr/share/X11/locale"));
+-    m_possibleLocations.append(QStringLiteral("/usr/local/share/X11/locale"));
+-    m_possibleLocations.append(QStringLiteral("/usr/lib/X11/locale"));
+-    m_possibleLocations.append(QStringLiteral("/usr/local/lib/X11/locale"));
+     m_possibleLocations.append(QStringLiteral(X11_PREFIX "/share/X11/locale"));
+     m_possibleLocations.append(QStringLiteral(X11_PREFIX "/lib/X11/locale"));
++    m_possibleLocations.append(QLatin1String(NIXPKGS_QTCOMPOSE));
+ }
+ 
+ QString TableGenerator::findComposeFile()
+-- 
+2.23.GIT
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0009-qtbase-tzdir.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0009-qtbase-tzdir.patch
new file mode 100644
index 000000000000..03466b69afbe
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0009-qtbase-tzdir.patch
@@ -0,0 +1,51 @@
+From db9686362ae34e02538e449e0edfe3d61065b2e9 Mon Sep 17 00:00:00 2001
+From: Thomas Tuegel <ttuegel@mailbox.org>
+Date: Tue, 17 Sep 2019 05:36:25 -0500
+Subject: [PATCH 09/12] qtbase-tzdir
+
+---
+ src/corelib/tools/qtimezoneprivate_tz.cpp | 20 ++++++++++++++------
+ 1 file changed, 14 insertions(+), 6 deletions(-)
+
+diff --git a/src/corelib/tools/qtimezoneprivate_tz.cpp b/src/corelib/tools/qtimezoneprivate_tz.cpp
+index 57bc000af5..d7d8119682 100644
+--- a/src/corelib/tools/qtimezoneprivate_tz.cpp
++++ b/src/corelib/tools/qtimezoneprivate_tz.cpp
+@@ -77,7 +77,11 @@ typedef QHash<QByteArray, QTzTimeZone> QTzTimeZoneHash;
+ // Parse zone.tab table, assume lists all installed zones, if not will need to read directories
+ static QTzTimeZoneHash loadTzTimeZones()
+ {
+-    QString path = QStringLiteral("/usr/share/zoneinfo/zone.tab");
++    // Try TZDIR first, in case we're running on NixOS.
++    QString path = QFile::decodeName(qgetenv("TZDIR")) + QStringLiteral("/zone.tab");
++    // Fallback to traditional paths in case we are not on NixOS.
++    if (!QFile::exists(path))
++        path = QStringLiteral("/usr/share/zoneinfo/zone.tab");
+     if (!QFile::exists(path))
+         path = QStringLiteral("/usr/lib/zoneinfo/zone.tab");
+ 
+@@ -656,12 +660,16 @@ void QTzTimeZonePrivate::init(const QByteArray &ianaId)
+         if (!tzif.open(QIODevice::ReadOnly))
+             return;
+     } else {
+-        // Open named tz, try modern path first, if fails try legacy path
+-        tzif.setFileName(QLatin1String("/usr/share/zoneinfo/") + QString::fromLocal8Bit(ianaId));
++        // Try TZDIR first, in case we're running on NixOS
++        tzif.setFileName(QFile::decodeName(qgetenv("TZDIR")) + QStringLiteral("/") + QString::fromLocal8Bit(ianaId));
+         if (!tzif.open(QIODevice::ReadOnly)) {
+-            tzif.setFileName(QLatin1String("/usr/lib/zoneinfo/") + QString::fromLocal8Bit(ianaId));
+-            if (!tzif.open(QIODevice::ReadOnly))
+-                return;
++            // Open named tz, try modern path first, if fails try legacy path
++            tzif.setFileName(QLatin1String("/usr/share/zoneinfo/") + QString::fromLocal8Bit(ianaId));
++            if (!tzif.open(QIODevice::ReadOnly)) {
++                tzif.setFileName(QLatin1String("/usr/lib/zoneinfo/") + QString::fromLocal8Bit(ianaId));
++                if (!tzif.open(QIODevice::ReadOnly))
++                    return;
++            }
+         }
+     }
+ 
+-- 
+2.23.GIT
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0010-qtbase-qtpluginpath.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0010-qtbase-qtpluginpath.patch
new file mode 100644
index 000000000000..2c03521286a6
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0010-qtbase-qtpluginpath.patch
@@ -0,0 +1,32 @@
+From a3aaebda6d4b302cd202c21e306c55d3715e9b0d Mon Sep 17 00:00:00 2001
+From: Thomas Tuegel <ttuegel@mailbox.org>
+Date: Tue, 17 Sep 2019 05:36:41 -0500
+Subject: [PATCH 10/12] qtbase-qtpluginpath
+
+---
+ src/corelib/kernel/qcoreapplication.cpp | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+diff --git a/src/corelib/kernel/qcoreapplication.cpp b/src/corelib/kernel/qcoreapplication.cpp
+index db6546028a..cc97c46004 100644
+--- a/src/corelib/kernel/qcoreapplication.cpp
++++ b/src/corelib/kernel/qcoreapplication.cpp
+@@ -2694,6 +2694,15 @@ QStringList QCoreApplication::libraryPaths()
+         QStringList *app_libpaths = new QStringList;
+         coreappdata()->app_libpaths.reset(app_libpaths);
+ 
++        // Add library paths derived from PATH
++        const QStringList paths = QFile::decodeName(qgetenv("PATH")).split(':');
++        const QString plugindir = QStringLiteral("../" NIXPKGS_QT_PLUGIN_PREFIX);
++        for (const QString &path: paths) {
++            if (!path.isEmpty()) {
++                app_libpaths->append(QDir::cleanPath(path + QDir::separator() + plugindir));
++            }
++        }
++
+         QString libPathEnv = qEnvironmentVariable("QT_PLUGIN_PATH");
+         if (!libPathEnv.isEmpty()) {
+             QStringList paths = libPathEnv.split(QDir::listSeparator(), QString::SkipEmptyParts);
+-- 
+2.23.GIT
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0011-qtbase-assert.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0011-qtbase-assert.patch
new file mode 100644
index 000000000000..b4e0ab762298
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0011-qtbase-assert.patch
@@ -0,0 +1,32 @@
+From 4f93027de0e9b825c4b7853d583e9b02a0443c6b Mon Sep 17 00:00:00 2001
+From: Thomas Tuegel <ttuegel@mailbox.org>
+Date: Tue, 17 Sep 2019 05:37:04 -0500
+Subject: [PATCH 11/12] qtbase-assert
+
+---
+ src/testlib/qtestassert.h | 7 +++++--
+ 1 file changed, 5 insertions(+), 2 deletions(-)
+
+diff --git a/src/testlib/qtestassert.h b/src/testlib/qtestassert.h
+index 6498ea84ef..d821ced7fc 100644
+--- a/src/testlib/qtestassert.h
++++ b/src/testlib/qtestassert.h
+@@ -44,10 +44,13 @@
+ 
+ QT_BEGIN_NAMESPACE
+ 
+-
++#if defined(QT_NO_DEBUG) && !defined(QT_FORCE_ASSERTS)
++#define QTEST_ASSERT(cond) do { } while ((false) && (cond))
++#define QTEST_ASSERT_X(cond, where, what) do { } while ((false) && (cond))
++#else
+ #define QTEST_ASSERT(cond) do { if (!(cond)) qt_assert(#cond,__FILE__,__LINE__); } while (false)
+-
+ #define QTEST_ASSERT_X(cond, where, what) do { if (!(cond)) qt_assert_x(where, what,__FILE__,__LINE__); } while (false)
++#endif
+ 
+ QT_END_NAMESPACE
+ 
+-- 
+2.23.GIT
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0012-fix-header_module.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0012-fix-header_module.patch
new file mode 100644
index 000000000000..1e2c68688b04
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0012-fix-header_module.patch
@@ -0,0 +1,25 @@
+From 821db0c3056a813e2d0d36fbb2c7361df5559b05 Mon Sep 17 00:00:00 2001
+From: Will Dietz <w@wdtz.org>
+Date: Mon, 30 Sep 2019 20:15:40 -0500
+Subject: [PATCH 12/12] fix header_module
+
+---
+ mkspecs/features/qt_module.prf | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/mkspecs/features/qt_module.prf b/mkspecs/features/qt_module.prf
+index 9015b30d73..7347c791b4 100644
+--- a/mkspecs/features/qt_module.prf
++++ b/mkspecs/features/qt_module.prf
+@@ -84,7 +84,7 @@ header_module {
+         CONFIG  += qt_no_install_library
+ 
+     # Allow creation of .prl, .la and .pc files.
+-    target.path = $$[QT_INSTALL_LIBS]
++    target.path = $$NIX_OUTPUT_OUT/lib
+     target.CONFIG += dummy_install
+     INSTALLS    += target
+ } else {
+-- 
+2.23.GIT
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0013-define-kiosurfacesuccess.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0013-define-kiosurfacesuccess.patch
new file mode 100644
index 000000000000..a43a46d8a69b
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0013-define-kiosurfacesuccess.patch
@@ -0,0 +1,16 @@
+diff --git a/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.mm b/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.mm
+index a367487e..c3aeca1d 100644
+--- a/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.mm
++++ b/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.mm
+@@ -49,6 +49,11 @@
+ // but was only added in the 10.14 SDK, so declare it just in case.
+ extern "C" CFPropertyListRef CGColorSpaceCopyPropertyList(CGColorSpaceRef space);
+ 
++// Introduced in 10.13: http://codeworkshop.net/objc-diff/sdkdiffs/macos/10.13/IOSurface.html
++#if !defined(kIOSurfaceSuccess)
++#define kIOSurfaceSuccess KERN_SUCCESS
++#endif
++
+ QT_BEGIN_NAMESPACE
+ 
+ Q_LOGGING_CATEGORY(lcQpaIOSurface, "qt.qpa.backingstore.iosurface");
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0014-qtbase-pkg-config.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0014-qtbase-pkg-config.patch
new file mode 100644
index 000000000000..90caaea1cf4d
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0014-qtbase-pkg-config.patch
@@ -0,0 +1,14 @@
+diff --git a/qmake/generators/makefile.cpp b/qmake/generators/makefile.cpp
+--- a/qmake/generators/makefile.cpp
++++ b/qmake/generators/makefile.cpp
+@@ -3390,8 +3390,7 @@ MakefileGenerator::writePkgConfigFile()
+       << varGlue("QMAKE_PKGCONFIG_CFLAGS", "", " ", " ")
+         //      << varGlue("DEFINES","-D"," -D"," ")
+          ;
+-    if (!project->values("QMAKE_DEFAULT_INCDIRS").contains(includeDir))
+-        t << "-I${includedir}";
++    t << "-I${includedir}";
+     if (target_mode == TARG_MAC_MODE && project->isActiveConfig("lib_bundle")
+         && libDir != QLatin1String("/Library/Frameworks")) {
+             t << " -F${libdir}";
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0015-qtbase-tbd-frameworks.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0015-qtbase-tbd-frameworks.patch
new file mode 100644
index 000000000000..8a5939978a6b
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtbase.patch.d/0015-qtbase-tbd-frameworks.patch
@@ -0,0 +1,15 @@
+diff --git a/src/gui/Qt5GuiConfigExtras.cmake.in b/src/gui/Qt5GuiConfigExtras.cmake.in
+index 84dbbfebd4..615bfed124 100644
+--- a/src/gui/Qt5GuiConfigExtras.cmake.in
++++ b/src/gui/Qt5GuiConfigExtras.cmake.in
+@@ -119,6 +119,10 @@ macro(_qt5gui_find_extra_libs Name Libs LibDir IncDirs)
+             if (NOT EXISTS "${Qt5Gui_${_cmake_lib_name}_LIBRARY}")
+                 set(Qt5Gui_${_cmake_lib_name}_LIBRARY)
+             endif()
++            set(Qt5Gui_${_cmake_lib_name}_LIBRARY "${Qt5Gui_${_cmake_lib_name}_LIBRARY}/${_lib}.tbd")
++            if (NOT EXISTS "${Qt5Gui_${_cmake_lib_name}_LIBRARY}")
++                set(Qt5Gui_${_cmake_lib_name}_LIBRARY)
++            endif()
+ !!ENDIF
+             if (NOT Qt5Gui_${_cmake_lib_name}_LIBRARY)
+                 # The above find_library call doesn\'t work for finding
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtdeclarative.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtdeclarative.patch
new file mode 100644
index 000000000000..8f5b5d4790fb
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtdeclarative.patch
@@ -0,0 +1,33 @@
+diff --git a/src/qml/qml/qqmlimport.cpp b/src/qml/qml/qqmlimport.cpp
+index 005db4248..685c5b1b2 100644
+--- a/src/qml/qml/qqmlimport.cpp
++++ b/src/qml/qml/qqmlimport.cpp
+@@ -1760,6 +1760,15 @@ QQmlImportDatabase::QQmlImportDatabase(QQmlEngine *e)
+     QString installImportsPath =  QLibraryInfo::location(QLibraryInfo::Qml2ImportsPath);
+     addImportPath(installImportsPath);
+ 
++    // Add import paths derived from PATH
++    const QStringList paths = QFile::decodeName(qgetenv("PATH")).split(':');
++    const QString qmldir = QStringLiteral("../" NIXPKGS_QML2_IMPORT_PREFIX);
++    for (const QString &path: paths) {
++        if (!path.isEmpty()) {
++            addImportPath(QDir::cleanPath(path + QDir::separator() + qmldir));
++        }
++    }
++
+     // env import paths
+     if (Q_UNLIKELY(!qEnvironmentVariableIsEmpty("QML2_IMPORT_PATH"))) {
+         const QString envImportPath = qEnvironmentVariable("QML2_IMPORT_PATH");
+diff --git a/tools/qmlcachegen/qmlcache.prf b/tools/qmlcachegen/qmlcache.prf
+index 537eaf62e..e21de58f6 100644
+--- a/tools/qmlcachegen/qmlcache.prf
++++ b/tools/qmlcachegen/qmlcache.prf
+@@ -26,7 +26,7 @@ defineReplace(qmlCacheOutputFileName) {
+ }
+ 
+ qmlcacheinst.base = $$QMLCACHE_DESTDIR
+-qmlcacheinst.path = $$[QT_INSTALL_QML]/$$TARGETPATH
++qmlcacheinst.path = $$NIX_OUTPUT_QML/$$TARGETPATH
+ qmlcacheinst.CONFIG = no_check_exist
+ 
+ qmlcachegen.input = CACHEGEN_FILES
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtlocation-gcc-9.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtlocation-gcc-9.patch
new file mode 100644
index 000000000000..1791313e5603
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtlocation-gcc-9.patch
@@ -0,0 +1,21 @@
+diff --git a/src/3rdparty/mapbox-gl-native/platform/default/bidi.cpp b/src/3rdparty/mapbox-gl-native/platform/default/bidi.cpp
+index d475c38..c1710a6 100644
+--- a/src/3rdparty/mapbox-gl-native/platform/default/bidi.cpp
++++ b/src/3rdparty/mapbox-gl-native/platform/default/bidi.cpp
+@@ -5,6 +5,7 @@
+ #include <unicode/ushape.h>
+ 
+ #include <memory>
++#include <stdexcept>
+ 
+ namespace mbgl {
+ 
+diff --git a/src/3rdparty/mapbox-gl-native/src/mbgl/util/convert.cpp b/src/3rdparty/mapbox-gl-native/src/mbgl/util/convert.cpp
+index 97bfe91..56d3e17 100644
+--- a/src/3rdparty/mapbox-gl-native/src/mbgl/util/convert.cpp
++++ b/src/3rdparty/mapbox-gl-native/src/mbgl/util/convert.cpp
+@@ -1,3 +1,4 @@
++#include <cstdint>
+ #include <mbgl/util/convert.hpp>
+ 
+ namespace mbgl {
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtscript.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtscript.patch
new file mode 100644
index 000000000000..5508dec1280e
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtscript.patch
@@ -0,0 +1,13 @@
+diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/wtf/Threading.h b/src/3rdparty/javascriptcore/JavaScriptCore/wtf/Threading.h
+index 1f6d25e..087c3fb 100644
+--- a/src/3rdparty/javascriptcore/JavaScriptCore/wtf/Threading.h
++++ b/src/3rdparty/javascriptcore/JavaScriptCore/wtf/Threading.h
+@@ -81,7 +81,7 @@
+ #include <pthread.h>
+ #elif PLATFORM(GTK)
+ #include <wtf/gtk/GOwnPtr.h>
+-typedef struct _GMutex GMutex;
++typedef union _GMutex GMutex;
+ typedef struct _GCond GCond;
+ #endif
+ 
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtserialport.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtserialport.patch
new file mode 100644
index 000000000000..f25524e80bcf
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtserialport.patch
@@ -0,0 +1,22 @@
+diff --git a/src/serialport/qtudev_p.h b/src/serialport/qtudev_p.h
+index af2dab2..8e17f64 100644
+--- a/src/serialport/qtudev_p.h
++++ b/src/serialport/qtudev_p.h
+@@ -111,9 +111,17 @@ inline QFunctionPointer resolveSymbol(QLibrary *udevLibrary, const char *symbolN
+ inline bool resolveSymbols(QLibrary *udevLibrary)
+ {
+     if (!udevLibrary->isLoaded()) {
++#ifdef NIXPKGS_LIBUDEV
++        udevLibrary->setFileNameAndVersion(QLatin1String(NIXPKGS_LIBUDEV), 1);
++#else
+         udevLibrary->setFileNameAndVersion(QStringLiteral("udev"), 1);
++#endif
+         if (!udevLibrary->load()) {
++#ifdef NIXPKGS_LIBUDEV
++            udevLibrary->setFileNameAndVersion(QLatin1String(NIXPKGS_LIBUDEV), 0);
++#else
+             udevLibrary->setFileNameAndVersion(QStringLiteral("udev"), 0);
++#endif
+             if (!udevLibrary->load()) {
+                 qWarning("Failed to load the library: %s, supported version(s): %i and %i", qPrintable(udevLibrary->fileName()), 1, 0);
+                 return false;
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qttools.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qttools.patch
new file mode 100644
index 000000000000..8ae12198ca25
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qttools.patch
@@ -0,0 +1,15 @@
+--- a/src/macdeployqt/shared/shared.cpp
++++ b/src/macdeployqt/shared/shared.cpp
+@@ -1241,6 +1241,12 @@ bool deployQmlImports(const QString &appBundlePath, DeploymentInfo deploymentInf
+     if (!QFile(qmlImportScannerPath).exists())
+         qmlImportScannerPath = QCoreApplication::applicationDirPath() + "/qmlimportscanner";
+ 
++#ifdef NIXPKGS_QMLIMPORTSCANNER
++    // Fallback: Nixpkgs hardcoded path
++    if (!QFile(qmlImportScannerPath).exists())
++        qmlImportScannerPath = NIXPKGS_QMLIMPORTSCANNER;
++#endif
++
+     // Verify that we found a qmlimportscanner binary
+     if (!QFile(qmlImportScannerPath).exists()) {
+         LogError() << "qmlimportscanner not found at" << qmlImportScannerPath;
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebengine-darwin-fix-failed-static-assertion.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebengine-darwin-fix-failed-static-assertion.patch
new file mode 100644
index 000000000000..510e25f56a4d
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebengine-darwin-fix-failed-static-assertion.patch
@@ -0,0 +1,31 @@
+Fix a following build error:
+
+In file included from ../../3rdparty/chromium/device/bluetooth/bluetooth_remote_gatt_characteristic_mac.mm:7:
+../../3rdparty/chromium/base/bind.h:59:3: error: static_assert failed "Bound argument |i| of type |Arg| cannot be forwarded as |Unwrapped| to the bound functor, which declares it as |Param|."
+  static_assert(
+  ^
+../../3rdparty/chromium/base/bind.h:91:7: note: in instantiation of template class 'base::internal::AssertConstructible<1, long, long, const long &, NSError *>' requested here
+    : AssertConstructible<Ns, Args, std::decay_t<Args>, Unwrapped, Params>... {
+      ^
+../../3rdparty/chromium/base/bind.h:213:27: note: in instantiation of template class 'base::internal::AssertBindArgsValidity<std::__1::integer_sequence<unsigned long, 0, 1>, base::internal::TypeList<base::WeakPtr<device::BluetoothRemoteGattCharacteristicMac>, long>, base::internal::TypeList<device::BluetoothRemoteGattCharacteristicMac *, const long &>, base::internal::TypeList<device::BluetoothRemoteGattCharacteristicMac *, NSError *> >' requested here
+  static_assert(internal::AssertBindArgsValidity<
+                          ^
+../../3rdparty/chromium/base/bind.h:242:16: note: in instantiation of function template specialization 'base::BindRepeating<void (device::BluetoothRemoteGattCharacteristicMac::*)(NSError *), base::WeakPtr<device::BluetoothRemoteGattCharacteristicMac>, long>' requested here
+  return base::BindRepeating(std::forward<Functor>(functor),
+               ^
+../../3rdparty/chromium/device/bluetooth/bluetooth_remote_gatt_characteristic_mac.mm:211:15: note: in instantiation of function template specialization 'base::Bind<void (device::BluetoothRemoteGattCharacteristicMac::*)(NSError *), base::WeakPtr<device::BluetoothRemoteGattCharacteristicMac>, long>' requested here
+        base::Bind(&BluetoothRemoteGattCharacteristicMac::DidWriteValue,
+              ^
+
+Resurrected from https://github.com/NixOS/nixpkgs/blob/ddcf01bca6c7a7a7f096bec836a1e6a707ad473d/pkgs/development/libraries/qt-5/5.11/qtwebengine-clang-fix.patch because the same problem is present in 5.12 when compiling on macOS.
+
+--- a/src/3rdparty/chromium/device/bluetooth/bluetooth_remote_gatt_characteristic_mac.mm
++++ b/src/3rdparty/chromium/device/bluetooth/bluetooth_remote_gatt_characteristic_mac.mm
+@@ -209,7 +209,7 @@ void BluetoothRemoteGattCharacteristicMac::WriteRemoteCharacteristic(
+     base::ThreadTaskRunnerHandle::Get()->PostTask(
+         FROM_HERE,
+         base::Bind(&BluetoothRemoteGattCharacteristicMac::DidWriteValue,
+-                   weak_ptr_factory_.GetWeakPtr(), nil));
++                   weak_ptr_factory_.GetWeakPtr(), nullptr));
+   }
+ }
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebengine-darwin-no-platform-check.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebengine-darwin-no-platform-check.patch
new file mode 100644
index 000000000000..cd2343e42ca3
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebengine-darwin-no-platform-check.patch
@@ -0,0 +1,69 @@
+diff --git a/configure.pri b/configure.pri
+index 897bea540..6f834c202 100644
+--- a/configure.pri
++++ b/configure.pri
+@@ -269,7 +269,7 @@ defineReplace(webEngineGetMacOSVersion) {
+ }
+ 
+ defineReplace(webEngineGetMacOSSDKVersion) {
+-    value = $$system("/usr/bin/xcodebuild -sdk $$QMAKE_MAC_SDK -version ProductVersion 2>/dev/null")
++    value = $$system("xcrun --show-sdk-version")
+     return($$value)
+ }
+ 
+diff --git a/mkspecs/features/platform.prf b/mkspecs/features/platform.prf
+index 35eb6b89c..7eed640a5 100644
+--- a/mkspecs/features/platform.prf
++++ b/mkspecs/features/platform.prf
+@@ -40,8 +40,6 @@ defineTest(isPlatformSupported) {
+   } else:osx {
+     # FIXME: Try to get it back down to 8.2 for building on OS X 10.11
+     !isMinXcodeVersion(8, 3, 3) {
+-      skipBuild("Using Xcode version $$QMAKE_XCODE_VERSION, but at least version 8.3.3 is required to build Qt WebEngine.")
+-      return(false)
+     }
+     !clang|intel_icc {
+         skipBuild("Qt WebEngine on macOS requires Clang.")
+@@ -54,8 +52,6 @@ defineTest(isPlatformSupported) {
+       return(false)
+     }
+     !isMinOSXSDKVersion(10, 12): {
+-      skipBuild("Building Qt WebEngine requires a macOS SDK version of 10.12 or newer. Current version is $${WEBENGINE_OSX_SDK_PRODUCT_VERSION}.")
+-      return(false)
+     }
+   } else {
+     skipBuild("Unknown platform. Qt WebEngine only supports Linux, Windows, and macOS.")
+@@ -111,7 +107,7 @@ defineTest(isMinOSXSDKVersion) {
+     requested_minor = $$2
+     requested_patch = $$3
+     isEmpty(requested_patch): requested_patch = 0
+-    WEBENGINE_OSX_SDK_PRODUCT_VERSION = $$system("/usr/bin/xcodebuild -sdk $$QMAKE_MAC_SDK -version ProductVersion 2>/dev/null")
++    WEBENGINE_OSX_SDK_PRODUCT_VERSION = $$system("xcrun --show-sdk-version")
+     export(WEBENGINE_OSX_SDK_PRODUCT_VERSION)
+     isEmpty(WEBENGINE_OSX_SDK_PRODUCT_VERSION) {
+         skipBuild("Could not resolve SDK product version for \'$$QMAKE_MAC_SDK\'.")
+diff --git a/src/core/config/mac_osx.pri b/src/core/config/mac_osx.pri
+index 7b77a8bf7..0e1284ee4 100644
+--- a/src/core/config/mac_osx.pri
++++ b/src/core/config/mac_osx.pri
+@@ -5,7 +5,7 @@ load(functions)
+ # otherwise query for it.
+ QMAKE_MAC_SDK_VERSION = $$eval(QMAKE_MAC_SDK.$${QMAKE_MAC_SDK}.SDKVersion)
+ isEmpty(QMAKE_MAC_SDK_VERSION) {
+-     QMAKE_MAC_SDK_VERSION = $$system("/usr/bin/xcodebuild -sdk $${QMAKE_MAC_SDK} -version SDKVersion 2>/dev/null")
++     QMAKE_MAC_SDK_VERSION = $$system("xcrun --show-sdk-version")
+      isEmpty(QMAKE_MAC_SDK_VERSION): error("Could not resolve SDK version for \'$${QMAKE_MAC_SDK}\'")
+ }
+ 
+@@ -14,11 +14,6 @@ isEmpty(QMAKE_MAC_SDK_VERSION) {
+ QMAKE_MAC_SDK_VERSION_MAJOR_MINOR = $$section(QMAKE_MAC_SDK_VERSION, ".", 0, 1)
+ 
+ QMAKE_CLANG_DIR = "/usr"
+-QMAKE_CLANG_PATH = $$eval(QMAKE_MAC_SDK.macx-clang.$${QMAKE_MAC_SDK}.QMAKE_CXX)
+-!isEmpty(QMAKE_CLANG_PATH) {
+-    clang_dir = $$clean_path("$$dirname(QMAKE_CLANG_PATH)/../")
+-    exists($$clang_dir): QMAKE_CLANG_DIR = $$clang_dir
+-}
+ 
+ QMAKE_CLANG_PATH = "$${QMAKE_CLANG_DIR}/bin/clang++"
+ message("Using clang++ from $${QMAKE_CLANG_PATH}")
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebengine-no-build-skip.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebengine-no-build-skip.patch
new file mode 100644
index 000000000000..f332d5e1bb2b
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebengine-no-build-skip.patch
@@ -0,0 +1,12 @@
+diff --git a/qtwebengine.pro b/qtwebengine.pro
+--- a/qtwebengine.pro
++++ b/qtwebengine.pro
+@@ -5,7 +5,7 @@ runConfigure()
+ 
+ !isEmpty(skipBuildReason) {
+     SUBDIRS =
+-    log($${skipBuildReason}$${EOL})
++    error($${skipBuildReason}$${EOL})
+     log(QtWebEngine will not be built.$${EOL})
+ }
+ 
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebkit-darwin-no-qos-classes.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebkit-darwin-no-qos-classes.patch
new file mode 100644
index 000000000000..a7087f517623
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebkit-darwin-no-qos-classes.patch
@@ -0,0 +1,11 @@
+diff --git a/Source/cmake/OptionsQt.cmake b/Source/cmake/OptionsQt.cmake
+--- a/Source/cmake/OptionsQt.cmake
++++ b/Source/cmake/OptionsQt.cmake
+@@ -683,7 +683,6 @@ if (WIN32 AND COMPILER_IS_GCC_OR_CLANG)
+ endif ()
+ 
+ if (APPLE)
+-    SET_AND_EXPOSE_TO_BUILD(HAVE_QOS_CLASSES 1)
+ endif ()
+ 
+ if (ENABLE_MATHML)
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebkit-darwin-no-readline.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebkit-darwin-no-readline.patch
new file mode 100644
index 000000000000..26d189d86019
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebkit-darwin-no-readline.patch
@@ -0,0 +1,45 @@
+diff --git a/Source/JavaScriptCore/shell/CMakeLists.txt b/Source/JavaScriptCore/shell/CMakeLists.txt
+--- a/Source/JavaScriptCore/shell/CMakeLists.txt
++++ b/Source/JavaScriptCore/shell/CMakeLists.txt
+@@ -9,7 +9,6 @@ set(JSC_LIBRARIES
+ )
+ 
+ if (WTF_OS_MAC_OS_X)
+-    list(APPEND JSC_LIBRARIES edit)
+ endif ()
+ 
+ if ("${JavaScriptCore_LIBRARY_TYPE}" MATCHES "STATIC")
+diff --git a/Source/WTF/wtf/Platform.h b/Source/WTF/wtf/Platform.h
+--- a/Source/WTF/wtf/Platform.h
++++ b/Source/WTF/wtf/Platform.h
+@@ -563,7 +563,6 @@
+ #if PLATFORM(IOS)
+ 
+ #define HAVE_NETWORK_EXTENSION 1
+-#define HAVE_READLINE 1
+ #if USE(APPLE_INTERNAL_SDK)
+ #define USE_CFNETWORK 1
+ #endif
+@@ -650,7 +649,6 @@
+ #define HAVE_MADV_DONTNEED 1
+ #define HAVE_MERGESORT 1
+ #define HAVE_PTHREAD_SETNAME_NP 1
+-#define HAVE_READLINE 1
+ #define HAVE_SYS_TIMEB_H 1
+ 
+ #if !PLATFORM(GTK) && !PLATFORM(QT)
+diff --git a/Source/WTF/wtf/PlatformMac.cmake b/Source/WTF/wtf/PlatformMac.cmake
+--- a/Source/WTF/wtf/PlatformMac.cmake
++++ b/Source/WTF/wtf/PlatformMac.cmake
+@@ -2,11 +2,9 @@ set(WTF_LIBRARY_TYPE SHARED)
+ 
+ find_library(COCOA_LIBRARY Cocoa)
+ find_library(COREFOUNDATION_LIBRARY CoreFoundation)
+-find_library(READLINE_LIBRARY Readline)
+ list(APPEND WTF_LIBRARIES
+     ${COREFOUNDATION_LIBRARY}
+     ${COCOA_LIBRARY}
+-    ${READLINE_LIBRARY}
+     libicucore.dylib
+ )
+ 
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebkit-icu68.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebkit-icu68.patch
new file mode 100644
index 000000000000..73463d7567a3
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebkit-icu68.patch
@@ -0,0 +1,170 @@
+Regressed by https://github.com/unicode-org/icu/commit/c3fe7e09d844
+
+In file included from Source/WebCore/platform/text/TextAllInOne.cpp:31:
+Source/WebCore/platform/text/TextCodecICU.cpp:311:42: error: use of undeclared identifier 'TRUE'
+        ucnv_setFallback(m_converterICU, TRUE);
+                                         ^
+In file included from Source/WebCore/platform/text/TextAllInOne.cpp:40:
+In file included from Source/WebCore/platform/text/icu/UTextProvider.cpp:27:
+Source/WebCore/platform/text/icu/UTextProvider.h:83:28: error: use of undeclared identifier 'TRUE'
+            isAccessible = TRUE;
+                           ^
+Source/WebCore/platform/text/icu/UTextProvider.h:88:28: error: use of undeclared identifier 'FALSE'
+            isAccessible = FALSE;
+                           ^
+Source/WebCore/platform/text/icu/UTextProvider.h:97:28: error: use of undeclared identifier 'TRUE'
+            isAccessible = TRUE;
+                           ^
+Source/WebCore/platform/text/icu/UTextProvider.h:102:28: error: use of undeclared identifier 'FALSE'
+            isAccessible = FALSE;
+                           ^
+In file included from Source/WebCore/platform/text/TextAllInOne.cpp:41:
+Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp:103:20: error: use of undeclared identifier 'TRUE'
+            return TRUE;
+                   ^
+Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp:108:20: error: use of undeclared identifier 'FALSE'
+            return FALSE;
+                   ^
+Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp:114:20: error: use of undeclared identifier 'TRUE'
+            return TRUE;
+                   ^
+Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp:119:20: error: use of undeclared identifier 'FALSE'
+            return FALSE;
+                   ^
+Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp:147:12: error: use of undeclared identifier 'TRUE'
+    return TRUE;
+           ^
+Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp:339:16: error: use of undeclared identifier 'FALSE'
+        return FALSE;
+               ^
+Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp:359:12: error: use of undeclared identifier 'TRUE'
+    return TRUE;
+           ^
+In file included from Source/WebCore/platform/text/TextAllInOne.cpp:42:
+Source/WebCore/platform/text/icu/UTextProviderUTF16.cpp:128:16: error: use of undeclared identifier 'FALSE'
+        return FALSE;
+               ^
+Source/WebCore/platform/text/icu/UTextProviderUTF16.cpp:148:12: error: use of undeclared identifier 'TRUE'
+    return TRUE;
+           ^
+
+--- a/Source/WebCore/platform/text/TextCodecICU.cpp
++++ b/Source/WebCore/platform/text/TextCodecICU.cpp
+@@ -308,7 +308,7 @@ void TextCodecICU::createICUConverter() const
+     m_converterICU = ucnv_open(m_canonicalConverterName, &err);
+     ASSERT(U_SUCCESS(err));
+     if (m_converterICU)
+-        ucnv_setFallback(m_converterICU, TRUE);
++        ucnv_setFallback(m_converterICU, true);
+ }
+ 
+ int TextCodecICU::decodeToBuffer(UChar* target, UChar* targetLimit, const char*& source, const char* sourceLimit, int32_t* offsets, bool flush, UErrorCode& err)
+--- a/Source/WebCore/platform/text/icu/UTextProvider.h
++++ b/Source/WebCore/platform/text/icu/UTextProvider.h
+@@ -80,12 +80,12 @@ inline bool uTextAccessInChunkOrOutOfRange(UText* text
+             // Ensure chunk offset is well formed if computed offset exceeds int32_t range.
+             ASSERT(offset < std::numeric_limits<int32_t>::max());
+             text->chunkOffset = offset < std::numeric_limits<int32_t>::max() ? static_cast<int32_t>(offset) : 0;
+-            isAccessible = TRUE;
++            isAccessible = true;
+             return true;
+         }
+         if (nativeIndex >= nativeLength && text->chunkNativeLimit == nativeLength) {
+             text->chunkOffset = text->chunkLength;
+-            isAccessible = FALSE;
++            isAccessible = false;
+             return true;
+         }
+     } else {
+@@ -94,12 +94,12 @@ inline bool uTextAccessInChunkOrOutOfRange(UText* text
+             // Ensure chunk offset is well formed if computed offset exceeds int32_t range.
+             ASSERT(offset < std::numeric_limits<int32_t>::max());
+             text->chunkOffset = offset < std::numeric_limits<int32_t>::max() ? static_cast<int32_t>(offset) : 0;
+-            isAccessible = TRUE;
++            isAccessible = true;
+             return true;
+         }
+         if (nativeIndex <= 0 && !text->chunkNativeStart) {
+             text->chunkOffset = 0;
+-            isAccessible = FALSE;
++            isAccessible = false;
+             return true;
+         }
+     }
+--- a/Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp
++++ b/Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp
+@@ -100,23 +100,23 @@ static UBool uTextLatin1Access(UText* uText, int64_t i
+         if (index < uText->chunkNativeLimit && index >= uText->chunkNativeStart) {
+             // Already inside the buffer. Set the new offset.
+             uText->chunkOffset = static_cast<int32_t>(index - uText->chunkNativeStart);
+-            return TRUE;
++            return true;
+         }
+         if (index >= length && uText->chunkNativeLimit == length) {
+             // Off the end of the buffer, but we can't get it.
+             uText->chunkOffset = static_cast<int32_t>(index - uText->chunkNativeStart);
+-            return FALSE;
++            return false;
+         }
+     } else {
+         if (index <= uText->chunkNativeLimit && index > uText->chunkNativeStart) {
+             // Already inside the buffer. Set the new offset.
+             uText->chunkOffset = static_cast<int32_t>(index - uText->chunkNativeStart);
+-            return TRUE;
++            return true;
+         }
+         if (!index && !uText->chunkNativeStart) {
+             // Already at the beginning; can't go any farther.
+             uText->chunkOffset = 0;
+-            return FALSE;
++            return false;
+         }
+     }
+     
+@@ -144,7 +144,7 @@ static UBool uTextLatin1Access(UText* uText, int64_t i
+ 
+     uText->nativeIndexingLimit = uText->chunkLength;
+ 
+-    return TRUE;
++    return true;
+ }
+ 
+ static int32_t uTextLatin1Extract(UText* uText, int64_t start, int64_t limit, UChar* dest, int32_t destCapacity, UErrorCode* status)
+@@ -336,7 +336,7 @@ static int64_t uTextLatin1ContextAwareNativeLength(UTe
+ static UBool uTextLatin1ContextAwareAccess(UText* text, int64_t nativeIndex, UBool forward)
+ {
+     if (!text->context)
+-        return FALSE;
++        return false;
+     int64_t nativeLength = uTextLatin1ContextAwareNativeLength(text);
+     UBool isAccessible;
+     if (uTextAccessInChunkOrOutOfRange(text, nativeIndex, nativeLength, forward, isAccessible))
+@@ -356,7 +356,7 @@ static UBool uTextLatin1ContextAwareAccess(UText* text
+         ASSERT(newContext == UTextProviderContext::PriorContext);
+         textLatin1ContextAwareSwitchToPriorContext(text, nativeIndex, nativeLength, forward);
+     }
+-    return TRUE;
++    return true;
+ }
+ 
+ static int32_t uTextLatin1ContextAwareExtract(UText*, int64_t, int64_t, UChar*, int32_t, UErrorCode* errorCode)
+--- a/Source/WebCore/platform/text/icu/UTextProviderUTF16.cpp
++++ b/Source/WebCore/platform/text/icu/UTextProviderUTF16.cpp
+@@ -125,7 +125,7 @@ static inline int64_t uTextUTF16ContextAwareNativeLeng
+ static UBool uTextUTF16ContextAwareAccess(UText* text, int64_t nativeIndex, UBool forward)
+ {
+     if (!text->context)
+-        return FALSE;
++        return false;
+     int64_t nativeLength = uTextUTF16ContextAwareNativeLength(text);
+     UBool isAccessible;
+     if (uTextAccessInChunkOrOutOfRange(text, nativeIndex, nativeLength, forward, isAccessible))
+@@ -145,7 +145,7 @@ static UBool uTextUTF16ContextAwareAccess(UText* text,
+         ASSERT(newContext == UTextProviderContext::PriorContext);
+         textUTF16ContextAwareSwitchToPriorContext(text, nativeIndex, nativeLength, forward);
+     }
+-    return TRUE;
++    return true;
+ }
+ 
+ static int32_t uTextUTF16ContextAwareExtract(UText*, int64_t, int64_t, UChar*, int32_t, UErrorCode* errorCode)
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebkit.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebkit.patch
new file mode 100644
index 000000000000..b94a4b76cbab
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/qtwebkit.patch
@@ -0,0 +1,12 @@
+diff --git a/Source/WebKit2/PlatformQt.cmake b/Source/WebKit2/PlatformQt.cmake
+--- a/Source/WebKit2/PlatformQt.cmake
++++ b/Source/WebKit2/PlatformQt.cmake
+@@ -261,6 +261,7 @@
+ list(APPEND WebKit2_SYSTEM_INCLUDE_DIRECTORIES
+     ${GLIB_INCLUDE_DIRS}
+     ${GSTREAMER_INCLUDE_DIRS}
++    ${GSTREAMER_PBUTILS_INCLUDE_DIRS}
+     ${Qt5Quick_INCLUDE_DIRS}
+     ${Qt5Quick_PRIVATE_INCLUDE_DIRS}
+     ${SQLITE_INCLUDE_DIR}
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.12/srcs.nix b/nixpkgs/pkgs/development/libraries/qt-5/5.12/srcs.nix
new file mode 100644
index 000000000000..03f8973766a9
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.12/srcs.nix
@@ -0,0 +1,326 @@
+# DO NOT EDIT! This file is generated automatically.
+# Command: ./maintainers/scripts/fetch-kde-qt.sh pkgs/development/libraries/qt-5/5.12
+{ fetchurl, mirror }:
+
+{
+  qt3d = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qt3d-everywhere-src-5.12.10.tar.xz";
+      sha256 = "1fnhdy0vwh1npq04pw3lzb15rsp0nx8wh57c8lvz9jn945xwc3vd";
+      name = "qt3d-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtactiveqt = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtactiveqt-everywhere-src-5.12.10.tar.xz";
+      sha256 = "0lf96ziba5g8izwcjzzaf4n2j336j6627rb3dzwvmsdkd9168zax";
+      name = "qtactiveqt-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtandroidextras = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtandroidextras-everywhere-src-5.12.10.tar.xz";
+      sha256 = "0blapv4jd80wcvzp96zxlrsyca7lwax17y6yij1d14a51353hrnc";
+      name = "qtandroidextras-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtbase = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtbase-everywhere-src-5.12.10.tar.xz";
+      sha256 = "0h39r3irahdms4gidg5l4a1kr7kagc4bd0y02sapg3njwrsg3240";
+      name = "qtbase-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtcanvas3d = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtcanvas3d-everywhere-src-5.12.10.tar.xz";
+      sha256 = "0pbxw89m2s19yk2985c49msd7s1mapydka9b7nzg9phs9nrzvf1m";
+      name = "qtcanvas3d-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtcharts = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtcharts-everywhere-src-5.12.10.tar.xz";
+      sha256 = "0cndm8llvfl9jdzn34b886gxgxwsibb24amhblh96cadhhkpwadc";
+      name = "qtcharts-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtconnectivity = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtconnectivity-everywhere-src-5.12.10.tar.xz";
+      sha256 = "19l816zfpx87vwzj18mbib5x3mb9hy1msacpy8i9bagfw9p0i6c0";
+      name = "qtconnectivity-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtdatavis3d = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtdatavis3d-everywhere-src-5.12.10.tar.xz";
+      sha256 = "1ximhph17kkh40v2ksk51lq21mbjs2ajyf5l32ckhc7n7bmaryb6";
+      name = "qtdatavis3d-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtdeclarative = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtdeclarative-everywhere-src-5.12.10.tar.xz";
+      sha256 = "05la1zlijcaargfh4ljnmxvvksdwzl409wl7w3m96kwm8s370mmf";
+      name = "qtdeclarative-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtdoc = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtdoc-everywhere-src-5.12.10.tar.xz";
+      sha256 = "0ljc29hnn8knncvq8hsk0rdcwrxbsk1ywlprknkvyb4pggp9rkp6";
+      name = "qtdoc-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtgamepad = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtgamepad-everywhere-src-5.12.10.tar.xz";
+      sha256 = "1bs50wghy3n8af656angkkkaac0swkq3mfllg3dkjg236ngzdhdh";
+      name = "qtgamepad-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtgraphicaleffects = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtgraphicaleffects-everywhere-src-5.12.10.tar.xz";
+      sha256 = "0hnsb757ircqmid34d0cxbh0mi4qnil22k5ka9a1b8xy00ydkfky";
+      name = "qtgraphicaleffects-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtimageformats = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtimageformats-everywhere-src-5.12.10.tar.xz";
+      sha256 = "1bh38xp4v914ksg91p9pij1gsdzs3y7sn7diy3d7wn5i039syn0i";
+      name = "qtimageformats-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtlocation = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtlocation-everywhere-src-5.12.10.tar.xz";
+      sha256 = "1czg0z69ilnxp1sqk0jawlnyp2gx87yb57g8dwjznqxxvaq744dc";
+      name = "qtlocation-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtmacextras = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtmacextras-everywhere-src-5.12.10.tar.xz";
+      sha256 = "0mh9p3f1f22pj4i8yxnn56amy53dapmcikza04ll4fvx5hy340v8";
+      name = "qtmacextras-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtmultimedia = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtmultimedia-everywhere-src-5.12.10.tar.xz";
+      sha256 = "0g50jzhwbrl5r0lmfz5ffpkp54mf0zfc8m884x51yn2bnngg366c";
+      name = "qtmultimedia-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtnetworkauth = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtnetworkauth-everywhere-src-5.12.10.tar.xz";
+      sha256 = "12n3xqlskrk2mbcgz5p613sx219j6rmpq8yn7p97xdv7li61gzl2";
+      name = "qtnetworkauth-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtpurchasing = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtpurchasing-everywhere-src-5.12.10.tar.xz";
+      sha256 = "1azdg03vxyk140i9z93x0zzlazbmd3qrqxgwk747jsd1ibns9ddy";
+      name = "qtpurchasing-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtquickcontrols = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtquickcontrols-everywhere-src-5.12.10.tar.xz";
+      sha256 = "1cy9vjl9zf95frnydzljqwbx3is8p8w27kdgszvmb67p6xkpblk7";
+      name = "qtquickcontrols-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtquickcontrols2 = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtquickcontrols2-everywhere-src-5.12.10.tar.xz";
+      sha256 = "0541n8n012d0xwxrfznv1jwh28d35mdx6cl8jadsaxaspgwz4vb3";
+      name = "qtquickcontrols2-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtremoteobjects = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtremoteobjects-everywhere-src-5.12.10.tar.xz";
+      sha256 = "147p0xdi22xz2d3501ig78bs97gbyz8ccyhn6dhbw2yalx33gma6";
+      name = "qtremoteobjects-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtscript = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtscript-everywhere-src-5.12.10.tar.xz";
+      sha256 = "1cfcfwq4shr6yphgwq2jnvgzjjqjrz10qnzr7dccksmfg3i0ad02";
+      name = "qtscript-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtscxml = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtscxml-everywhere-src-5.12.10.tar.xz";
+      sha256 = "057zchhm1s5ly2a685y4105pgmzgqp1jkkf9w0ca8xd05z4clb4r";
+      name = "qtscxml-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtsensors = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtsensors-everywhere-src-5.12.10.tar.xz";
+      sha256 = "10f00njvc7kwjci0g4g3pibl9ra798iplvj2ymql3zppxqqdq25m";
+      name = "qtsensors-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtserialbus = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtserialbus-everywhere-src-5.12.10.tar.xz";
+      sha256 = "0zd0crs2nrsvncj070fl05g0nm3j5bf16g54c7m9603b6q7bryrx";
+      name = "qtserialbus-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtserialport = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtserialport-everywhere-src-5.12.10.tar.xz";
+      sha256 = "0anndf6pyssiygj0kk2j80vwil2z0765gccs87djhsni1xvk3n9r";
+      name = "qtserialport-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtspeech = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtspeech-everywhere-src-5.12.10.tar.xz";
+      sha256 = "11fycm604r1xswb9dg1g568jxd68zd9m2dzfy4qda6sr4mdaj6jg";
+      name = "qtspeech-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtsvg = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtsvg-everywhere-src-5.12.10.tar.xz";
+      sha256 = "0jrkz8y225g93pznsvc1icanxxc5cfm23ic2y6rprqaqw77z9zxm";
+      name = "qtsvg-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qttools = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qttools-everywhere-src-5.12.10.tar.xz";
+      sha256 = "0v339a1w3kqvfl8hcds032g8zafp8d4c1b2rzihpq6y4mbksdkxh";
+      name = "qttools-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qttranslations = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qttranslations-everywhere-src-5.12.10.tar.xz";
+      sha256 = "1pjkkkkjvs9harz70sir67yf3i528vyn1shmi09hlzlb23nmipp1";
+      name = "qttranslations-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtvirtualkeyboard = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtvirtualkeyboard-everywhere-src-5.12.10.tar.xz";
+      sha256 = "0afw3lj5cg3zj0hzxlhz5l7s1j2y491yxwylc4vchbqjpyvsadgg";
+      name = "qtvirtualkeyboard-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtwayland = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtwayland-everywhere-src-5.12.10.tar.xz";
+      sha256 = "1bs61xmc4l03w21wkrxx0llfg5bbnq5ij7w0bnfkx3rk0vncy0q6";
+      name = "qtwayland-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtwebchannel = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtwebchannel-everywhere-src-5.12.10.tar.xz";
+      sha256 = "1jmprqgavqwknnnl6qp0psxz7bc69ivxhm7y4qci95vpx9k5yjg8";
+      name = "qtwebchannel-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtwebengine = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtwebengine-everywhere-src-5.12.10.tar.xz";
+      sha256 = "16zbyfc7qy9f20anfrdi25f6nf1j7zw8kps60mqb18nfjw411d50";
+      name = "qtwebengine-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtwebglplugin = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtwebglplugin-everywhere-src-5.12.10.tar.xz";
+      sha256 = "0nhim67rl9dbshnarismnd54qzks8v14a08h8qi7x0dm9bj9ij7q";
+      name = "qtwebglplugin-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtwebsockets = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtwebsockets-everywhere-src-5.12.10.tar.xz";
+      sha256 = "0p74ds53d3a30i7pq85b9ql9i4z1p0yyanhmaizw2bv9225py4jr";
+      name = "qtwebsockets-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtwebview = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtwebview-everywhere-src-5.12.10.tar.xz";
+      sha256 = "07pz7wfhyijfdlxnaqpn4hwgvpglma6dfmkcb8xw6hfhg30riaxd";
+      name = "qtwebview-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtwinextras = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtwinextras-everywhere-src-5.12.10.tar.xz";
+      sha256 = "1x5k0z0p94zppqsw2fz8ki9v5abf0crzva16wllznn89ylqjyn0j";
+      name = "qtwinextras-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtx11extras = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtx11extras-everywhere-src-5.12.10.tar.xz";
+      sha256 = "0xk10iynkfs31vgpadrmw30k4s1hlnggxy2f3q988qyqd37dh5h8";
+      name = "qtx11extras-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+  qtxmlpatterns = {
+    version = "5.12.10";
+    src = fetchurl {
+      url = "${mirror}/official_releases/qt/5.12/5.12.10/submodules/qtxmlpatterns-everywhere-src-5.12.10.tar.xz";
+      sha256 = "1qg09yxagz36sry03kv3swwfjc8lrik1asjk2lxlpzzcl2q95lbv";
+      name = "qtxmlpatterns-everywhere-src-5.12.10.tar.xz";
+    };
+  };
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/default.nix b/nixpkgs/pkgs/development/libraries/qt-5/5.14/default.nix
new file mode 100644
index 000000000000..ddd9d76df4ea
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/default.nix
@@ -0,0 +1,233 @@
+/*
+
+# Updates
+
+Before a major version update, make a copy of this directory. (We like to
+keep the old version around for a short time after major updates.) Add a
+top-level attribute to `top-level/all-packages.nix`.
+
+1. Update the URL in `pkgs/development/libraries/qt-5/$VERSION/fetch.sh`.
+2. From the top of the Nixpkgs tree, run
+   `./maintainers/scripts/fetch-kde-qt.sh pkgs/development/libraries/qt-5/$VERSION`.
+3. Check that the new packages build correctly.
+4. Commit the changes and open a pull request.
+
+*/
+
+{ newScope
+, lib, stdenv, fetchurl, fetchpatch, fetchFromGitHub, makeSetupHook, makeWrapper
+, bison, cups ? null, harfbuzz, libGL, perl
+, gstreamer, gst-plugins-base, gtk3, dconf
+, darwin
+
+  # options
+, developerBuild ? false
+, decryptSslTraffic ? false
+, debug ? false
+}:
+
+let
+
+  qtCompatVersion = srcs.qtbase.version;
+
+  mirror = "https://download.qt.io";
+  srcs = import ./srcs.nix { inherit fetchurl; inherit mirror; } // {
+    # qtwebkit does not have an official release tarball on the qt mirror and is
+    # mostly maintained by the community.
+    qtwebkit = rec {
+      src = fetchFromGitHub {
+        owner = "qt";
+        repo = "qtwebkit";
+        rev = "v${version}";
+        sha256 = "0x8rng96h19xirn7qkz3lydal6v4vn00bcl0s3brz36dfs0z8wpg";
+      };
+      version = "5.212.0-alpha4";
+    };
+  };
+
+  patches = {
+    qtbase = lib.optionals stdenv.isDarwin [
+      ./qtbase.patch.d/0001-qtbase-mkspecs-mac.patch
+
+      # Downgrade minimal required SDK to 10.12
+      ./qtbase.patch.d/0013-define-kiosurfacesuccess.patch
+      ./qtbase.patch.d/qtbase-sdk-10.12-mac.patch
+
+      # Patch framework detection to support X.framework/X.tbd,
+      # extending the current support for X.framework/X.
+      ./qtbase.patch.d/0012-qtbase-tbd-frameworks.patch
+    ] ++ [
+      ./qtbase.patch.d/0003-qtbase-mkspecs.patch
+      ./qtbase.patch.d/0004-qtbase-replace-libdir.patch
+      ./qtbase.patch.d/0005-qtbase-cmake.patch
+      ./qtbase.patch.d/0006-qtbase-gtk3.patch
+      ./qtbase.patch.d/0007-qtbase-xcursor.patch
+      ./qtbase.patch.d/0008-qtbase-tzdir.patch
+      ./qtbase.patch.d/0009-qtbase-qtpluginpath.patch
+      ./qtbase.patch.d/0010-qtbase-assert.patch
+      ./qtbase.patch.d/0011-fix-header_module.patch
+    ];
+    qtdeclarative = [ ./qtdeclarative.patch ];
+    qtlocation = [ ./qtlocation-gcc-9.patch ];
+    qtscript = [ ./qtscript.patch ];
+    qtserialport = [ ./qtserialport.patch ];
+    qtwebengine = [
+      # Fix build with bison-3.7: https://code.qt.io/cgit/qt/qtwebengine-chromium.git/commit/?id=1a53f599
+      (fetchpatch {
+        name = "qtwebengine-bison-3.7-build.patch";
+        url = "https://code.qt.io/cgit/qt/qtwebengine-chromium.git/patch/?id=1a53f599";
+        sha256 = "1nqpyn5fq37q7i9nasag6i14lnz0d7sld5ikqhlm8qwq9d7gbmjy";
+        stripLen = 1;
+        extraPrefix = "src/3rdparty/";
+      })
+      # Fix build with GCC 10 (part 1): https://code.qt.io/cgit/qt/qtwebengine-chromium.git/commit/?id=fad3e27b
+      (fetchpatch {
+        name = "qtwebengine-gcc10-part1.patch";
+        url = "https://code.qt.io/cgit/qt/qtwebengine-chromium.git/patch/?id=fad3e27bfb50d1e23a07577f087a826b5e00bb1d";
+        sha256 = "0c55j9zww8jyif6wl7jy1qqidgw9fdhiyfjgzhzi85r716m4pwwd";
+        stripLen = 1;
+        extraPrefix = "src/3rdparty/";
+      })
+      # Fix build with GCC 10 (part 2): https://code.qt.io/cgit/qt/qtwebengine-chromium.git/commit/?id=193c5bed
+      (fetchpatch {
+        name = "qtwebengine-gcc10-part2.patch";
+        url = "https://code.qt.io/cgit/qt/qtwebengine-chromium.git/patch/?id=193c5bed1cff123e21b7e6d12f464d6709ace2e3";
+        sha256 = "1jb6s32ara6l4rbn4h3gg95mzv8sd8dl1zpjaqwywf1w7p8ymk86";
+        stripLen = 1;
+        extraPrefix = "src/3rdparty/";
+      })
+    ] ++ lib.optional stdenv.isDarwin ./qtwebengine-darwin-no-platform-check.patch;
+    qtwebkit = [
+      (fetchpatch {
+        name = "qtwebkit-bison-3.7-build.patch";
+        url = "https://github.com/qtwebkit/qtwebkit/commit/d92b11fea65364fefa700249bd3340e0cd4c5b31.patch";
+        sha256 = "0h8ymfnwgkjkwaankr3iifiscsvngqpwb91yygndx344qdiw9y0n";
+      })
+      (fetchpatch {
+        name = "qtwebkit-glib-2.68.patch";
+        url = "https://github.com/qtwebkit/qtwebkit/pull/1058/commits/5b698ba3faffd4e198a45be9fe74f53307395e4b.patch";
+        sha256 = "0a3xv0h4lv8wggckgy8cg8xnpkg7n9h45312pdjdnnwy87xvzss0";
+      })
+      ./qtwebkit.patch
+      ./qtwebkit-icu68.patch
+    ] ++ lib.optionals stdenv.isDarwin [
+      ./qtwebkit-darwin-no-readline.patch
+      ./qtwebkit-darwin-no-qos-classes.patch
+    ];
+    qttools = [ ./qttools.patch ];
+    qtwayland = [ ./qtwayland-libdrm-build.patch ];
+  };
+
+  qtModule =
+    import ../qtModule.nix
+    {
+      inherit perl;
+      inherit lib;
+      # Use a variant of mkDerivation that does not include wrapQtApplications
+      # to avoid cyclic dependencies between Qt modules.
+      mkDerivation =
+        import ../mkDerivation.nix
+        { inherit lib; inherit debug; wrapQtAppsHook = null; }
+        stdenv.mkDerivation;
+    }
+    { inherit self srcs patches; };
+
+  addPackages = self: with self;
+    let
+      callPackage = self.newScope { inherit qtCompatVersion qtModule srcs; };
+    in {
+
+      inherit callPackage qtCompatVersion qtModule srcs;
+
+      mkDerivationWith =
+        import ../mkDerivation.nix
+        { inherit lib; inherit debug; inherit (self) wrapQtAppsHook; };
+
+      mkDerivation = mkDerivationWith stdenv.mkDerivation;
+
+      qtbase = callPackage ../modules/qtbase.nix {
+        inherit (srcs.qtbase) src version;
+        patches = patches.qtbase;
+        inherit bison cups harfbuzz libGL;
+        withGtk3 = true; inherit dconf gtk3;
+        inherit debug developerBuild decryptSslTraffic;
+        inherit (darwin.apple_sdk.frameworks) AGL AppKit ApplicationServices Carbon Cocoa CoreAudio CoreBluetooth
+          CoreLocation CoreServices DiskArbitration Foundation OpenGL MetalKit IOKit;
+        inherit (darwin) libobjc;
+      };
+
+      qt3d = callPackage ../modules/qt3d.nix {};
+      qtcharts = callPackage ../modules/qtcharts.nix {};
+      qtconnectivity = callPackage ../modules/qtconnectivity.nix {};
+      qtdeclarative = callPackage ../modules/qtdeclarative.nix {};
+      qtdoc = callPackage ../modules/qtdoc.nix {};
+      qtgamepad = callPackage ../modules/qtgamepad.nix {
+        inherit (darwin.apple_sdk.frameworks) GameController;
+      };
+      qtgraphicaleffects = callPackage ../modules/qtgraphicaleffects.nix {};
+      qtimageformats = callPackage ../modules/qtimageformats.nix {};
+      qtlocation = callPackage ../modules/qtlocation.nix {};
+      qtmacextras = callPackage ../modules/qtmacextras.nix {};
+      qtmultimedia = callPackage ../modules/qtmultimedia.nix {
+        inherit gstreamer gst-plugins-base;
+      };
+      qtnetworkauth = callPackage ../modules/qtnetworkauth.nix {};
+      qtquick1 = null;
+      qtquickcontrols = callPackage ../modules/qtquickcontrols.nix {};
+      qtquickcontrols2 = callPackage ../modules/qtquickcontrols2.nix {};
+      qtscript = callPackage ../modules/qtscript.nix {};
+      qtsensors = callPackage ../modules/qtsensors.nix {};
+      qtserialport = callPackage ../modules/qtserialport.nix {};
+      qtspeech = callPackage ../modules/qtspeech.nix {};
+      qtsvg = callPackage ../modules/qtsvg.nix {};
+      qtscxml = callPackage ../modules/qtscxml.nix {};
+      qttools = callPackage ../modules/qttools.nix {};
+      qttranslations = callPackage ../modules/qttranslations.nix {};
+      qtvirtualkeyboard = callPackage ../modules/qtvirtualkeyboard.nix {};
+      qtwayland = callPackage ../modules/qtwayland.nix {};
+      qtwebchannel = callPackage ../modules/qtwebchannel.nix {};
+      qtwebengine = callPackage ../modules/qtwebengine.nix {
+        inherit (darwin) cctools libobjc libunwind xnu;
+        inherit (darwin.apple_sdk.libs) sandbox;
+        inherit (darwin.apple_sdk.frameworks) ApplicationServices AVFoundation Foundation ForceFeedback GameController AppKit
+          ImageCaptureCore CoreBluetooth IOBluetooth CoreWLAN Quartz Cocoa LocalAuthentication;
+      };
+      qtwebglplugin = callPackage ../modules/qtwebglplugin.nix {};
+      qtwebkit = callPackage ../modules/qtwebkit.nix {
+        inherit (darwin) ICU;
+        inherit (darwin.apple_sdk.frameworks) OpenGL;
+      };
+      qtwebsockets = callPackage ../modules/qtwebsockets.nix {};
+      qtwebview = callPackage ../modules/qtwebview.nix {
+        inherit (darwin.apple_sdk.frameworks) CoreFoundation WebKit;
+      };
+      qtx11extras = callPackage ../modules/qtx11extras.nix {};
+      qtxmlpatterns = callPackage ../modules/qtxmlpatterns.nix {};
+
+      env = callPackage ../qt-env.nix {};
+      full = env "qt-full-${qtbase.version}" ([
+        qt3d qtcharts qtconnectivity qtdeclarative qtdoc qtgraphicaleffects
+        qtimageformats qtlocation qtmultimedia qtquickcontrols qtquickcontrols2
+        qtscript qtsensors qtserialport qtsvg qttools qttranslations
+        qtvirtualkeyboard qtwebchannel qtwebengine qtwebkit qtwebsockets
+        qtwebview qtx11extras qtxmlpatterns
+      ] ++ lib.optional (!stdenv.isDarwin) qtwayland
+        ++ lib.optional (stdenv.isDarwin) qtmacextras);
+
+      qmake = makeSetupHook {
+        deps = [ self.qtbase.dev ];
+        substitutions = {
+          inherit debug;
+          fix_qmake_libtool = ../hooks/fix-qmake-libtool.sh;
+        };
+      } ../hooks/qmake-hook.sh;
+
+      wrapQtAppsHook = makeSetupHook {
+        deps = [ self.qtbase.dev makeWrapper ]
+          ++ lib.optional stdenv.isLinux self.qtwayland.dev;
+      } ../hooks/wrap-qt-apps-hook.sh;
+    };
+
+   self = lib.makeScope newScope addPackages;
+
+in self
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/fetch.sh b/nixpkgs/pkgs/development/libraries/qt-5/5.14/fetch.sh
new file mode 100644
index 000000000000..ca0073afbbb4
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/fetch.sh
@@ -0,0 +1,2 @@
+WGET_ARGS=( https://download.qt.io/archive/qt/5.14/5.14.2/submodules/ \
+            -A '*.tar.xz' )
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0001-qtbase-mkspecs-mac.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0001-qtbase-mkspecs-mac.patch
new file mode 100644
index 000000000000..0f38ce0d7f61
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0001-qtbase-mkspecs-mac.patch
@@ -0,0 +1,409 @@
+From a5848991db270ffdd9f2fa05220475bb3194d12f Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Milan=20P=C3=A4ssler?= <me@pbb.lc>
+Date: Fri, 3 Apr 2020 21:07:58 +0200
+Subject: [PATCH 01/10] qtbase-mkspecs-mac
+
+---
+ mkspecs/common/mac.conf               |   2 +-
+ mkspecs/features/mac/default_post.prf | 206 --------------------------
+ mkspecs/features/mac/default_pre.prf  |  58 --------
+ mkspecs/features/mac/sdk.mk           |  25 ----
+ mkspecs/features/mac/sdk.prf          |  61 --------
+ 5 files changed, 1 insertion(+), 351 deletions(-)
+ delete mode 100644 mkspecs/features/mac/sdk.mk
+ delete mode 100644 mkspecs/features/mac/sdk.prf
+
+diff --git a/mkspecs/common/mac.conf b/mkspecs/common/mac.conf
+index 61bea952b2..9909dae726 100644
+--- a/mkspecs/common/mac.conf
++++ b/mkspecs/common/mac.conf
+@@ -23,7 +23,7 @@ QMAKE_INCDIR_OPENGL     = \
+ 
+ QMAKE_FIX_RPATH         = install_name_tool -id
+ 
+-QMAKE_LFLAGS_RPATH      = -Wl,-rpath,
++QMAKE_LFLAGS_RPATH      =
+ QMAKE_LFLAGS_GCSECTIONS = -Wl,-dead_strip
+ 
+ QMAKE_LFLAGS_REL_RPATH  =
+diff --git a/mkspecs/features/mac/default_post.prf b/mkspecs/features/mac/default_post.prf
+index ba163efc18..b80ec1e801 100644
+--- a/mkspecs/features/mac/default_post.prf
++++ b/mkspecs/features/mac/default_post.prf
+@@ -68,212 +68,6 @@ qt {
+     }
+ }
+ 
+-# Add the same default rpaths as Xcode does for new projects.
+-# This is especially important for iOS/tvOS/watchOS where no other option is possible.
+-!no_default_rpath {
+-    uikit: QMAKE_RPATHDIR += @executable_path/Frameworks
+-    else: QMAKE_RPATHDIR += @executable_path/../Frameworks
+-    equals(TEMPLATE, lib):!plugin:lib_bundle: QMAKE_RPATHDIR += @loader_path/Frameworks
+-}
+-
+-# Don't pass -headerpad_max_install_names when using Bitcode.
+-# In that case the linker emits a warning stating that the flag is ignored when
+-# used with bitcode, for reasons that cannot be determined (rdar://problem/20748962).
+-# Using this flag is also unnecessary in practice on UIKit platforms since they
+-# are sandboxed, and only UIKit platforms support bitcode to begin with.
+-!bitcode: QMAKE_LFLAGS += $$QMAKE_LFLAGS_HEADERPAD
+-
+-app_extension_api_only {
+-    QMAKE_CFLAGS              += $$QMAKE_CFLAGS_APPLICATION_EXTENSION
+-    QMAKE_CXXFLAGS            += $$QMAKE_CFLAGS_APPLICATION_EXTENSION
+-    QMAKE_CXXFLAGS_PRECOMPILE += $$QMAKE_CFLAGS_APPLICATION_EXTENSION
+-    QMAKE_LFLAGS              += $$QMAKE_CFLAGS_APPLICATION_EXTENSION
+-}
+-
+-macx-xcode {
+-    qmake_pkginfo_typeinfo.name = QMAKE_PKGINFO_TYPEINFO
+-    !isEmpty(QMAKE_PKGINFO_TYPEINFO): \
+-        qmake_pkginfo_typeinfo.value = $$QMAKE_PKGINFO_TYPEINFO
+-    else: \
+-        qmake_pkginfo_typeinfo.value = "????"
+-    QMAKE_MAC_XCODE_SETTINGS += qmake_pkginfo_typeinfo
+-
+-    bundle_version = $$VERSION
+-    isEmpty(bundle_version): bundle_version = 1.0.0
+-
+-    l = $$split(bundle_version, '.') 0 0  # make sure there are at least three
+-    VER_MAJ = $$member(l, 0, 0)
+-    VER_MIN = $$member(l, 1, 1)
+-    VER_PAT = $$member(l, 2, 2)
+-    unset(l)
+-
+-    qmake_full_version.name = QMAKE_FULL_VERSION
+-    qmake_full_version.value = $${VER_MAJ}.$${VER_MIN}.$${VER_PAT}
+-    QMAKE_MAC_XCODE_SETTINGS += qmake_full_version
+-
+-    qmake_short_version.name = QMAKE_SHORT_VERSION
+-    qmake_short_version.value = $${VER_MAJ}.$${VER_MIN}
+-    QMAKE_MAC_XCODE_SETTINGS += qmake_short_version
+-
+-    !isEmpty(QMAKE_XCODE_DEBUG_INFORMATION_FORMAT) {
+-        debug_information_format.name = DEBUG_INFORMATION_FORMAT
+-        debug_information_format.value = $$QMAKE_XCODE_DEBUG_INFORMATION_FORMAT
+-        debug_information_format.build = debug
+-        QMAKE_MAC_XCODE_SETTINGS += debug_information_format
+-    }
+-
+-    QMAKE_XCODE_ARCHS =
+-
+-    arch_device.name = "ARCHS[sdk=$${device.sdk}*]"
+-    arch_device.value = $$QMAKE_APPLE_DEVICE_ARCHS
+-    QMAKE_XCODE_ARCHS += $$QMAKE_APPLE_DEVICE_ARCHS
+-    QMAKE_MAC_XCODE_SETTINGS += arch_device
+-
+-    simulator {
+-        arch_simulator.name = "ARCHS[sdk=$${simulator.sdk}*]"
+-        arch_simulator.value = $$QMAKE_APPLE_SIMULATOR_ARCHS
+-        QMAKE_XCODE_ARCHS += $$QMAKE_APPLE_SIMULATOR_ARCHS
+-        QMAKE_MAC_XCODE_SETTINGS += arch_simulator
+-    }
+-
+-    only_active_arch.name = ONLY_ACTIVE_ARCH
+-    only_active_arch.value = YES
+-    only_active_arch.build = debug
+-    QMAKE_MAC_XCODE_SETTINGS += only_active_arch
+-} else {
+-    device|!simulator: VALID_DEVICE_ARCHS = $$QMAKE_APPLE_DEVICE_ARCHS
+-    simulator: VALID_SIMULATOR_ARCHS = $$QMAKE_APPLE_SIMULATOR_ARCHS
+-    VALID_ARCHS = $$VALID_DEVICE_ARCHS $$VALID_SIMULATOR_ARCHS
+-
+-    isEmpty(VALID_ARCHS): \
+-        error("QMAKE_APPLE_DEVICE_ARCHS or QMAKE_APPLE_SIMULATOR_ARCHS must contain at least one architecture")
+-
+-    single_arch: VALID_ARCHS = $$first(VALID_ARCHS)
+-
+-    ACTIVE_ARCHS = $(filter $(EXPORT_VALID_ARCHS), $(ARCHS))
+-    ARCH_ARGS = $(foreach arch, $(if $(EXPORT_ACTIVE_ARCHS), $(EXPORT_ACTIVE_ARCHS), $(EXPORT_VALID_ARCHS)), -arch $(arch))
+-
+-    QMAKE_EXTRA_VARIABLES += VALID_ARCHS ACTIVE_ARCHS ARCH_ARGS
+-
+-    arch_flags = $(EXPORT_ARCH_ARGS)
+-
+-    QMAKE_CFLAGS += $$arch_flags
+-    QMAKE_CXXFLAGS += $$arch_flags
+-    QMAKE_LFLAGS += $$arch_flags
+-
+-    QMAKE_PCH_ARCHS = $$VALID_ARCHS
+-
+-    macos: deployment_target = $$QMAKE_MACOSX_DEPLOYMENT_TARGET
+-    ios: deployment_target = $$QMAKE_IOS_DEPLOYMENT_TARGET
+-    tvos: deployment_target = $$QMAKE_TVOS_DEPLOYMENT_TARGET
+-    watchos: deployment_target = $$QMAKE_WATCHOS_DEPLOYMENT_TARGET
+-
+-    # If we're doing a simulator and device build, device and simulator
+-    # architectures use different paths and flags for the sysroot and
+-    # deployment target switch, so we must multiplex them across multiple
+-    # architectures using -Xarch. Otherwise we fall back to the simple path.
+-    # This is not strictly necessary, but results in cleaner command lines
+-    # and makes it easier for people to override EXPORT_VALID_ARCHS to limit
+-    # individual rules to a different set of architecture(s) from the overall
+-    # build (such as machtest in QtCore).
+-    simulator:device {
+-        QMAKE_XARCH_CFLAGS =
+-        QMAKE_XARCH_LFLAGS =
+-        QMAKE_EXTRA_VARIABLES += QMAKE_XARCH_CFLAGS QMAKE_XARCH_LFLAGS
+-
+-        for (arch, VALID_ARCHS) {
+-            contains(VALID_SIMULATOR_ARCHS, $$arch) {
+-                sdk = $$simulator.sdk
+-                version_identifier = $$simulator.deployment_identifier
+-            } else {
+-                sdk = $$device.sdk
+-                version_identifier = $$device.deployment_identifier
+-            }
+-
+-            version_min_flags = \
+-                -Xarch_$${arch} \
+-                -m$${version_identifier}-version-min=$$deployment_target
+-            QMAKE_XARCH_CFLAGS_$${arch} = $$version_min_flags \
+-                -Xarch_$${arch} \
+-                -isysroot$$xcodeSDKInfo(Path, $$sdk)
+-            QMAKE_XARCH_LFLAGS_$${arch} = $$version_min_flags \
+-                -Xarch_$${arch} \
+-                -Wl,-syslibroot,$$xcodeSDKInfo(Path, $$sdk)
+-
+-            QMAKE_XARCH_CFLAGS += $(EXPORT_QMAKE_XARCH_CFLAGS_$${arch})
+-            QMAKE_XARCH_LFLAGS += $(EXPORT_QMAKE_XARCH_LFLAGS_$${arch})
+-
+-            QMAKE_EXTRA_VARIABLES += \
+-                QMAKE_XARCH_CFLAGS_$${arch} \
+-                QMAKE_XARCH_LFLAGS_$${arch}
+-        }
+-
+-        QMAKE_CFLAGS += $(EXPORT_QMAKE_XARCH_CFLAGS)
+-        QMAKE_CXXFLAGS += $(EXPORT_QMAKE_XARCH_CFLAGS)
+-        QMAKE_LFLAGS += $(EXPORT_QMAKE_XARCH_LFLAGS)
+-    } else {
+-        simulator {
+-            version_identifier = $$simulator.deployment_identifier
+-            sysroot_path  = $$xcodeSDKInfo(Path, $$simulator.sdk)
+-        } else {
+-            version_identifier = $$device.deployment_identifier
+-            sysroot_path  = $$xcodeSDKInfo(Path, $$device.sdk)
+-        }
+-        version_min_flag = -m$${version_identifier}-version-min=$$deployment_target
+-        QMAKE_CFLAGS += -isysroot $$sysroot_path $$version_min_flag
+-        QMAKE_CXXFLAGS += -isysroot $$sysroot_path $$version_min_flag
+-        QMAKE_LFLAGS += -Wl,-syslibroot,$$sysroot_path $$version_min_flag
+-    }
+-
+-    # Enable precompiled headers for multiple architectures
+-    QMAKE_CFLAGS_USE_PRECOMPILE =
+-    for (arch, VALID_ARCHS) {
+-        icc_pch_style: \
+-            use_flag = "-pch-use "
+-        else: \
+-            use_flag = -include
+-
+-        # Only use Xarch with multi-arch, as the option confuses ccache
+-        count(VALID_ARCHS, 1, greaterThan): \
+-            QMAKE_CFLAGS_USE_PRECOMPILE += \
+-                -Xarch_$${arch}
+-
+-        QMAKE_CFLAGS_USE_PRECOMPILE += \
+-            $${use_flag}${QMAKE_PCH_OUTPUT_$${arch}}
+-    }
+-    icc_pch_style {
+-        QMAKE_CXXFLAGS_USE_PRECOMPILE = $$QMAKE_CFLAGS_USE_PRECOMPILE -include ${QMAKE_PCH_INPUT}
+-        QMAKE_CFLAGS_USE_PRECOMPILE =
+-    } else {
+-        QMAKE_CXXFLAGS_USE_PRECOMPILE = $$QMAKE_CFLAGS_USE_PRECOMPILE
+-        QMAKE_OBJCFLAGS_USE_PRECOMPILE = $$QMAKE_CFLAGS_USE_PRECOMPILE
+-        QMAKE_OBJCXXFLAGS_USE_PRECOMPILE = $$QMAKE_CFLAGS_USE_PRECOMPILE
+-    }
+-
+-    QMAKE_PCH_OUTPUT_EXT = _${QMAKE_PCH_ARCH}$${QMAKE_PCH_OUTPUT_EXT}
+-}
+-
+-!equals(sdk_version, $$QMAKE_MAC_SDK_VERSION) {
+-    # Explicit SDK version has been set, respect that
+-    QMAKE_LFLAGS += -Wl,-sdk_version -Wl,$$sdk_version
+-}
+-
+-cache(QMAKE_XCODE_DEVELOPER_PATH, stash)
+-!isEmpty(QMAKE_XCODE_VERSION): \
+-    cache(QMAKE_XCODE_VERSION, stash)
+-
+-QMAKE_XCODE_LIBRARY_SUFFIX = $$qtPlatformTargetSuffix()
+-
+-xcode_product_bundle_identifier_setting.name = PRODUCT_BUNDLE_IDENTIFIER
+-xcode_product_bundle_identifier_setting.value = $$QMAKE_TARGET_BUNDLE_PREFIX
+-isEmpty(xcode_product_bundle_identifier_setting.value): \
+-    xcode_product_bundle_identifier_setting.value = "com.yourcompany"
+-xcode_product_bundle_target = $$QMAKE_BUNDLE
+-isEmpty(xcode_product_bundle_target): \
+-    xcode_product_bundle_target = ${PRODUCT_NAME:rfc1034identifier}
+-xcode_product_bundle_identifier_setting.value = "$${xcode_product_bundle_identifier_setting.value}.$${xcode_product_bundle_target}"
+-QMAKE_MAC_XCODE_SETTINGS += xcode_product_bundle_identifier_setting
+-
+ !macx-xcode {
+     generate_xcode_project.commands = @$(QMAKE) -spec macx-xcode \"$(EXPORT__PRO_FILE_)\" $$QMAKE_ARGS
+     generate_xcode_project.target = xcodeproj
+diff --git a/mkspecs/features/mac/default_pre.prf b/mkspecs/features/mac/default_pre.prf
+index e3534561a5..3b01424e67 100644
+--- a/mkspecs/features/mac/default_pre.prf
++++ b/mkspecs/features/mac/default_pre.prf
+@@ -1,60 +1,2 @@
+ CONFIG = asset_catalogs rez $$CONFIG
+ load(default_pre)
+-
+-isEmpty(QMAKE_XCODE_DEVELOPER_PATH) {
+-    # Get path of Xcode's Developer directory
+-    QMAKE_XCODE_DEVELOPER_PATH = $$system("/usr/bin/xcode-select --print-path 2>/dev/null")
+-    isEmpty(QMAKE_XCODE_DEVELOPER_PATH): \
+-        error("Xcode path is not set. Please use xcode-select to choose Xcode installation path.")
+-
+-    # Make sure Xcode path is valid
+-    !exists($$QMAKE_XCODE_DEVELOPER_PATH): \
+-        error("Xcode is not installed in $${QMAKE_XCODE_DEVELOPER_PATH}. Please use xcode-select to choose Xcode installation path.")
+-}
+-
+-isEmpty(QMAKE_XCODEBUILD_PATH): \
+-    QMAKE_XCODEBUILD_PATH = $$system("/usr/bin/xcrun -find xcodebuild 2>/dev/null")
+-
+-!isEmpty(QMAKE_XCODEBUILD_PATH) {
+-    # Make sure Xcode is set up properly
+-    !system("/usr/bin/xcrun xcodebuild -license check 2>/dev/null"): \
+-        error("Xcode not set up properly. You need to confirm the license agreement by running 'sudo xcrun xcodebuild -license accept'.")
+-
+-    isEmpty(QMAKE_XCODE_VERSION) {
+-        # Extract Xcode version using xcodebuild
+-        xcode_version = $$system("/usr/bin/xcrun xcodebuild -version")
+-        QMAKE_XCODE_VERSION = $$member(xcode_version, 1)
+-        isEmpty(QMAKE_XCODE_VERSION): error("Could not resolve Xcode version.")
+-        unset(xcode_version)
+-    }
+-}
+-
+-isEmpty(QMAKE_TARGET_BUNDLE_PREFIX) {
+-    QMAKE_XCODE_PREFERENCES_FILE = $$(HOME)/Library/Preferences/com.apple.dt.Xcode.plist
+-    exists($$QMAKE_XCODE_PREFERENCES_FILE): \
+-        QMAKE_TARGET_BUNDLE_PREFIX = $$system("/usr/libexec/PlistBuddy -c 'print IDETemplateOptions:bundleIdentifierPrefix' $$QMAKE_XCODE_PREFERENCES_FILE 2>/dev/null")
+-
+-    !isEmpty(_QMAKE_CACHE_):!isEmpty(QMAKE_TARGET_BUNDLE_PREFIX): \
+-        cache(QMAKE_TARGET_BUNDLE_PREFIX)
+-}
+-
+-QMAKE_ASSET_CATALOGS_APP_ICON = AppIcon
+-
+-# Make the default debug info format for static debug builds
+-# DWARF instead of DWARF with dSYM. This cuts down build times
+-# for application debug builds significantly, as Xcode doesn't
+-# have to pull out all the DWARF info from the Qt static libs
+-# and put it into a dSYM file. We don't need that dSYM file in
+-# the first place, since the information is available in the
+-# object files inside the archives (static libraries).
+-macx-xcode:qtConfig(static): \
+-    QMAKE_XCODE_DEBUG_INFORMATION_FORMAT = dwarf
+-
+-# This variable is used by the xcode_dynamic_library_suffix
+-# feature, which allows Xcode to choose the Qt libraries to link to
+-# at build time, depending on the current Xcode SDK and configuration.
+-QMAKE_XCODE_LIBRARY_SUFFIX_SETTING = QT_LIBRARY_SUFFIX
+-
+-xcode_copy_phase_strip_setting.name = COPY_PHASE_STRIP
+-xcode_copy_phase_strip_setting.value = NO
+-QMAKE_MAC_XCODE_SETTINGS += xcode_copy_phase_strip_setting
+diff --git a/mkspecs/features/mac/sdk.mk b/mkspecs/features/mac/sdk.mk
+--- a/mkspecs/features/mac/sdk.mk
++++ b/mkspecs/features/mac/sdk.mk
+@@ -1,25 +0,0 @@
+-
+-ifeq ($(QT_MAC_SDK_NO_VERSION_CHECK),)
+-    CHECK_SDK_COMMAND = /usr/bin/xcrun --sdk $(EXPORT_QMAKE_MAC_SDK) -show-sdk-version 2>&1
+-    CURRENT_MAC_SDK_VERSION := $(shell DEVELOPER_DIR=$(EXPORT_QMAKE_XCODE_DEVELOPER_PATH) $(CHECK_SDK_COMMAND))
+-    ifneq ($(CURRENT_MAC_SDK_VERSION),$(EXPORT_QMAKE_MAC_SDK_VERSION))
+-        # We don't want to complain about out of date SDK unless the target needs to be remade.
+-        # This covers use-cases such as running 'make check' after moving the build to a
+-        # computer without Xcode or with a different Xcode version.
+-        TARGET_UP_TO_DATE := $(shell QT_MAC_SDK_NO_VERSION_CHECK=1 $(MAKE) --question $(QMAKE_TARGET) && echo 1 || echo 0)
+-        ifeq ($(TARGET_UP_TO_DATE),0)
+-            ifneq ($(findstring missing DEVELOPER_DIR path,$(CURRENT_MAC_SDK_VERSION)),)
+-                $(info The developer dir $(EXPORT_QMAKE_XCODE_DEVELOPER_PATH) is no longer valid.)
+-            else ifneq ($(findstring SDK "$(EXPORT_QMAKE_MAC_SDK)" cannot be located,$(CURRENT_MAC_SDK_VERSION)),)
+-                $(info The developer dir $(EXPORT_QMAKE_XCODE_DEVELOPER_PATH) no longer contains the $(EXPORT_QMAKE_MAC_SDK_VERSION) platform SDK.)
+-            else ifneq ($(CURRENT_MAC_SDK_VERSION),)
+-                $(info The platform SDK has been changed from version $(EXPORT_QMAKE_MAC_SDK_VERSION) to version $(CURRENT_MAC_SDK_VERSION).)
+-            else
+-                $(info Unknown error resolving current platform SDK version.)
+-            endif
+-            $(info This requires a fresh build. Please wipe the build directory completely,)
+-            $(info including any .qmake.stash and .qmake.cache files generated by qmake.)
+-            $(error ^)
+-        endif
+-    endif
+-endif
+diff --git a/mkspecs/features/mac/sdk.prf b/mkspecs/features/mac/sdk.prf
+deleted file mode 100644
+index 3a9c2778bb..0000000000
+--- a/mkspecs/features/mac/sdk.prf
++++ /dev/null
+@@ -1,61 +0,0 @@
+-
+-isEmpty(QMAKE_MAC_SDK): \
+-    error("QMAKE_MAC_SDK must be set when using CONFIG += sdk.")
+-
+-contains(QMAKE_MAC_SDK, .*/.*): \
+-    error("QMAKE_MAC_SDK can only contain short-form SDK names (eg. macosx, iphoneos)")
+-
+-defineReplace(xcodeSDKInfo) {
+-    info = $$1
+-    equals(info, "Path"): \
+-        infoarg = --show-sdk-path
+-    equals(info, "PlatformPath"): \
+-        infoarg = --show-sdk-platform-path
+-    equals(info, "SDKVersion"): \
+-        infoarg = --show-sdk-version
+-    sdk = $$2
+-    isEmpty(sdk): \
+-        sdk = $$QMAKE_MAC_SDK
+-
+-    isEmpty(QMAKE_MAC_SDK.$${sdk}.$${info}) {
+-        QMAKE_MAC_SDK.$${sdk}.$${info} = $$system("/usr/bin/xcrun --sdk $$sdk $$infoarg 2>/dev/null")
+-        # --show-sdk-platform-path won't work for Command Line Tools; this is fine
+-        # only used by the XCTest backend to testlib
+-        isEmpty(QMAKE_MAC_SDK.$${sdk}.$${info}):if(!isEmpty(QMAKE_XCODEBUILD_PATH)|!equals(infoarg, "--show-sdk-platform-path")): \
+-            error("Could not resolve SDK $$info for \'$$sdk\' using $$infoarg")
+-        cache(QMAKE_MAC_SDK.$${sdk}.$${info}, set stash, QMAKE_MAC_SDK.$${sdk}.$${info})
+-    }
+-
+-    return($$eval(QMAKE_MAC_SDK.$${sdk}.$${info}))
+-}
+-
+-QMAKE_MAC_SDK_PATH = $$xcodeSDKInfo(Path)
+-QMAKE_MAC_SDK_PLATFORM_PATH = $$xcodeSDKInfo(PlatformPath)
+-QMAKE_MAC_SDK_VERSION = $$xcodeSDKInfo(SDKVersion)
+-
+-isEmpty(QMAKE_EXPORT_INCDIR_OPENGL) {
+-    QMAKE_EXPORT_INCDIR_OPENGL = $$QMAKE_INCDIR_OPENGL
+-    sysrootified =
+-    for(val, QMAKE_INCDIR_OPENGL): sysrootified += $${QMAKE_MAC_SDK_PATH}$$val
+-    QMAKE_INCDIR_OPENGL = $$sysrootified
+-}
+-
+-QMAKESPEC_NAME = $$basename(QMAKESPEC)
+-
+-# Resolve SDK version of various tools
+-for(tool, $$list(QMAKE_CC QMAKE_CXX QMAKE_FIX_RPATH QMAKE_AR QMAKE_RANLIB QMAKE_LINK QMAKE_LINK_SHLIB QMAKE_ACTOOL QMAKE_LINK_C QMAKE_LINK_C_SHLIB)) {
+-    tool_variable = QMAKE_MAC_SDK.$${QMAKESPEC_NAME}.$${QMAKE_MAC_SDK}.$${tool}
+-    !isEmpty($$tool_variable) {
+-        $$tool = $$eval($$tool_variable)
+-        next()
+-    }
+-
+-    value = $$eval($$tool)
+-    isEmpty(value): next()
+-
+-    sysrooted = $$system("/usr/bin/xcrun -sdk $$QMAKE_MAC_SDK -find $$first(value) 2>/dev/null")
+-    isEmpty(sysrooted): next()
+-
+-    $$tool = $$sysrooted $$member(value, 1, -1)
+-    cache($$tool_variable, set stash, $$tool)
+-}
+-- 
+2.25.1
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0003-qtbase-mkspecs.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0003-qtbase-mkspecs.patch
new file mode 100644
index 000000000000..dbd6b3663443
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0003-qtbase-mkspecs.patch
@@ -0,0 +1,490 @@
+From 87c81a31d65862a2f32fdc575cfb47b7a46bfae7 Mon Sep 17 00:00:00 2001
+From: OPNA2608 <christoph.neidahl@gmail.com>
+Date: Mon, 12 Apr 2021 20:05:25 +0200
+Subject: [PATCH 03/10] qtbase-mkspecs
+
+---
+ mkspecs/features/create_cmake.prf             | 51 +++---------
+ .../data/cmake/Qt5BasicConfig.cmake.in        | 80 +------------------
+ mkspecs/features/qml_module.prf               |  2 +-
+ mkspecs/features/qml_plugin.prf               |  2 +-
+ mkspecs/features/qt_app.prf                   |  2 +-
+ mkspecs/features/qt_build_paths.prf           |  4 +-
+ mkspecs/features/qt_docs.prf                  | 10 +--
+ mkspecs/features/qt_example_installs.prf      |  2 +-
+ mkspecs/features/qt_functions.prf             | 27 ++++---
+ mkspecs/features/qt_installs.prf              | 22 ++---
+ mkspecs/features/qt_plugin.prf                |  2 +-
+ 11 files changed, 52 insertions(+), 152 deletions(-)
+
+diff --git a/mkspecs/features/create_cmake.prf b/mkspecs/features/create_cmake.prf
+index 0e71fd0015..ba071d9a70 100644
+--- a/mkspecs/features/create_cmake.prf
++++ b/mkspecs/features/create_cmake.prf
+@@ -21,7 +21,7 @@ load(cmake_functions)
+ # at cmake time whether package has been found via a symlink, and correct
+ # that to an absolute path. This is only done for installations to
+ # the /usr or / prefix.
+-CMAKE_INSTALL_LIBS_DIR = $$cmakeTargetPath($$[QT_INSTALL_LIBS])
++CMAKE_INSTALL_LIBS_DIR = $$cmakeTargetPath($$NIX_OUTPUT_OUT/lib/)
+ contains(CMAKE_INSTALL_LIBS_DIR, ^(/usr)?/lib(64)?.*): CMAKE_USR_MOVE_WORKAROUND = $$CMAKE_INSTALL_LIBS_DIR
+ 
+ CMAKE_OUT_DIR = $$MODULE_BASE_OUTDIR/lib/cmake
+@@ -77,45 +77,20 @@ split_incpath {
+         $$cmake_extra_source_includes.output
+ }
+ 
+-CMAKE_INCLUDE_DIR = $$cmakeRelativePath($$[QT_INSTALL_HEADERS], $$[QT_INSTALL_PREFIX])
+-contains(CMAKE_INCLUDE_DIR, "^\\.\\./.*") {
+-    CMAKE_INCLUDE_DIR = $$[QT_INSTALL_HEADERS]/
+-    CMAKE_INCLUDE_DIR_IS_ABSOLUTE = True
+-}
++CMAKE_INCLUDE_DIR = $$NIX_OUTPUT_DEV/include/
++CMAKE_INCLUDE_DIR_IS_ABSOLUTE = True
+ 
+-CMAKE_LIB_DIR = $$cmakeRelativePath($$[QT_INSTALL_LIBS], $$[QT_INSTALL_PREFIX])
+-contains(CMAKE_LIB_DIR,"^\\.\\./.*") {
+-    CMAKE_LIB_DIR = $$[QT_INSTALL_LIBS]/
+-    CMAKE_LIB_DIR_IS_ABSOLUTE = True
+-} else {
+-    CMAKE_RELATIVE_INSTALL_LIBS_DIR = $$cmakeRelativePath($$[QT_INSTALL_PREFIX], $$[QT_INSTALL_LIBS])
+-    # We need to go up another two levels because the CMake files are
+-    # installed in $${CMAKE_LIB_DIR}/cmake/Qt5$${CMAKE_MODULE_NAME}
+-    CMAKE_RELATIVE_INSTALL_DIR = "$${CMAKE_RELATIVE_INSTALL_LIBS_DIR}../../"
+-}
++CMAKE_BIN_DIR = $$NIX_OUTPUT_BIN/bin/
++CMAKE_BIN_DIR_IS_ABSOLUTE = True
+ 
+-CMAKE_BIN_DIR = $$cmakeRelativePath($$[QT_HOST_BINS], $$[QT_INSTALL_PREFIX])
+-contains(CMAKE_BIN_DIR, "^\\.\\./.*") {
+-    CMAKE_BIN_DIR = $$[QT_HOST_BINS]/
+-    CMAKE_BIN_DIR_IS_ABSOLUTE = True
+-}
++CMAKE_LIB_DIR = $$NIX_OUTPUT_OUT/lib/
++CMAKE_LIB_DIR_IS_ABSOLUTE = True
+ 
+-CMAKE_PLUGIN_DIR = $$cmakeRelativePath($$[QT_INSTALL_PLUGINS], $$[QT_INSTALL_PREFIX])
+-contains(CMAKE_PLUGIN_DIR, "^\\.\\./.*") {
+-    CMAKE_PLUGIN_DIR = $$[QT_INSTALL_PLUGINS]/
+-    CMAKE_PLUGIN_DIR_IS_ABSOLUTE = True
+-}
++CMAKE_PLUGIN_DIR = $$NIX_OUTPUT_PLUGIN/
++CMAKE_PLUGIN_DIR_IS_ABSOLUTE = True
+ 
+-win32:!static:!staticlib {
+-    CMAKE_DLL_DIR = $$cmakeRelativePath($$[QT_INSTALL_BINS], $$[QT_INSTALL_PREFIX])
+-    contains(CMAKE_DLL_DIR, "^\\.\\./.*") {
+-        CMAKE_DLL_DIR = $$[QT_INSTALL_BINS]/
+-        CMAKE_DLL_DIR_IS_ABSOLUTE = True
+-    }
+-} else {
+-    CMAKE_DLL_DIR = $$CMAKE_LIB_DIR
+-    CMAKE_DLL_DIR_IS_ABSOLUTE = $$CMAKE_LIB_DIR_IS_ABSOLUTE
+-}
++CMAKE_DLL_DIR = $$NIX_OUTPUT_OUT/lib/
++CMAKE_DLL_DIR_IS_ABSOLUTE = True
+ 
+ static|staticlib:CMAKE_STATIC_TYPE = true
+ 
+@@ -258,7 +233,7 @@ contains(CONFIG, plugin) {
+ 
+     cmake_qt5_plugin_file.files = $$cmake_target_file.output
+     static|staticlib: cmake_qt5_plugin_file.files += $$cmake_qt5_plugin_import_file.output
+-    cmake_qt5_plugin_file.path = $$[QT_INSTALL_LIBS]/cmake/Qt5$${CMAKE_MODULE_NAME}
++    cmake_qt5_plugin_file.path = $$NIX_OUTPUT_OUT/lib/cmake/Qt5$${CMAKE_MODULE_NAME}
+     INSTALLS += cmake_qt5_plugin_file
+ 
+     return()
+@@ -396,7 +371,7 @@ exists($$cmake_macros_file.input) {
+     cmake_qt5_module_files.files += $$cmake_macros_file.output
+ }
+ 
+-cmake_qt5_module_files.path = $$[QT_INSTALL_LIBS]/cmake/Qt5$${CMAKE_MODULE_NAME}
++cmake_qt5_module_files.path = $$NIX_OUTPUT_OUT/lib/cmake/Qt5$${CMAKE_MODULE_NAME}
+ 
+ # We are generating cmake files. Most developers of Qt are not aware of cmake,
+ # so we require automatic tests to be available. The only module which should
+diff --git a/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in b/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in
+index 1099a761ce..87679b7e68 100644
+--- a/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in
++++ b/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in
+@@ -3,30 +3,6 @@ if (CMAKE_VERSION VERSION_LESS 3.1.0)
+     message(FATAL_ERROR \"Qt 5 $${CMAKE_MODULE_NAME} module requires at least CMake version 3.1.0\")
+ endif()
+ 
+-!!IF !isEmpty(CMAKE_USR_MOVE_WORKAROUND)
+-!!IF !isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-set(_qt5$${CMAKE_MODULE_NAME}_install_prefix \"$$[QT_INSTALL_PREFIX]\")
+-!!ELSE
+-get_filename_component(_IMPORT_PREFIX \"${CMAKE_CURRENT_LIST_FILE}\" PATH)
+-# Use original install prefix when loaded through a
+-# cross-prefix symbolic link such as /lib -> /usr/lib.
+-get_filename_component(_realCurr \"${_IMPORT_PREFIX}\" REALPATH)
+-get_filename_component(_realOrig \"$$CMAKE_INSTALL_LIBS_DIR/cmake/Qt5$${CMAKE_MODULE_NAME}\" REALPATH)
+-if(_realCurr STREQUAL _realOrig)
+-    get_filename_component(_qt5$${CMAKE_MODULE_NAME}_install_prefix \"$$CMAKE_INSTALL_LIBS_DIR/$${CMAKE_RELATIVE_INSTALL_LIBS_DIR}\" ABSOLUTE)
+-else()
+-    get_filename_component(_qt5$${CMAKE_MODULE_NAME}_install_prefix \"${CMAKE_CURRENT_LIST_DIR}/$${CMAKE_RELATIVE_INSTALL_DIR}\" ABSOLUTE)
+-endif()
+-unset(_realOrig)
+-unset(_realCurr)
+-unset(_IMPORT_PREFIX)
+-!!ENDIF
+-!!ELIF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-get_filename_component(_qt5$${CMAKE_MODULE_NAME}_install_prefix \"${CMAKE_CURRENT_LIST_DIR}/$${CMAKE_RELATIVE_INSTALL_DIR}\" ABSOLUTE)
+-!!ELSE
+-set(_qt5$${CMAKE_MODULE_NAME}_install_prefix \"$$[QT_INSTALL_PREFIX]\")
+-!!ENDIF
+-
+ !!IF !equals(TEMPLATE, aux)
+ # For backwards compatibility only. Use Qt5$${CMAKE_MODULE_NAME}_VERSION instead.
+ set(Qt5$${CMAKE_MODULE_NAME}_VERSION_STRING "$$eval(QT.$${MODULE}.VERSION)")
+@@ -146,11 +122,7 @@ macro(_populate_$${CMAKE_MODULE_NAME}_target_properties Configuration LIB_LOCATI
+       IsDebugAndRelease)
+     set_property(TARGET Qt5::$${CMAKE_MODULE_NAME} APPEND PROPERTY IMPORTED_CONFIGURATIONS ${Configuration})
+ 
+-!!IF isEmpty(CMAKE_DLL_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_DLL_DIR}${LIB_LOCATION}\")
+-!!ELSE
+     set(imported_location \"$${CMAKE_DLL_DIR}${LIB_LOCATION}\")
+-!!ENDIF
+     _qt5_$${CMAKE_MODULE_NAME}_check_file_exists(${imported_location})
+     set(_deps
+         ${_Qt5$${CMAKE_MODULE_NAME}_LIB_DEPENDENCIES}
+@@ -210,11 +182,7 @@ macro(_populate_$${CMAKE_MODULE_NAME}_target_properties Configuration LIB_LOCATI
+ !!ENDIF
+ 
+ !!IF !isEmpty(CMAKE_WINDOWS_BUILD)
+-!!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-    set(imported_implib \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}${IMPLIB_LOCATION}\")
+-!!ELSE
+     set(imported_implib \"IMPORTED_IMPLIB_${Configuration}\" \"$${CMAKE_LIB_DIR}${IMPLIB_LOCATION}\")
+-!!ENDIF
+     _qt5_$${CMAKE_MODULE_NAME}_check_file_exists(${imported_implib})
+     if(NOT \"${IMPLIB_LOCATION}\" STREQUAL \"\")
+         set_target_properties(Qt5::$${CMAKE_MODULE_NAME} PROPERTIES
+@@ -230,24 +198,13 @@ if (NOT TARGET Qt5::$${CMAKE_MODULE_NAME})
+ !!IF !no_module_headers
+ !!IF !isEmpty(CMAKE_BUILD_IS_FRAMEWORK)
+     set(_Qt5$${CMAKE_MODULE_NAME}_OWN_INCLUDE_DIRS
+-      \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework\"
+-      \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework/Headers\"
++      \"$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework\"
++      \"$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework/Headers\"
+     )
+ !!IF isEmpty(CMAKE_NO_PRIVATE_INCLUDES)
+     set(Qt5$${CMAKE_MODULE_NAME}_PRIVATE_INCLUDE_DIRS
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework/Versions/$$section(VERSION, ., 0, 0)/Headers/$$VERSION/\"
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework/Versions/$$section(VERSION, ., 0, 0)/Headers/$$VERSION/$${MODULE_INCNAME}\"
+-    )
+-!!ELSE
+-    set(Qt5$${CMAKE_MODULE_NAME}_PRIVATE_INCLUDE_DIRS \"\")
+-!!ENDIF
+-!!ELSE
+-!!IF isEmpty(CMAKE_INCLUDE_DIR_IS_ABSOLUTE)
+-    set(_Qt5$${CMAKE_MODULE_NAME}_OWN_INCLUDE_DIRS \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$$CMAKE_INCLUDE_DIR\" \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_INCLUDE_DIR}$${MODULE_INCNAME}\")
+-!!IF isEmpty(CMAKE_NO_PRIVATE_INCLUDES)
+-    set(Qt5$${CMAKE_MODULE_NAME}_PRIVATE_INCLUDE_DIRS
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_INCLUDE_DIR}$${MODULE_INCNAME}/$$VERSION\"
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_INCLUDE_DIR}$${MODULE_INCNAME}/$$VERSION/$${MODULE_INCNAME}\"
++      \"$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework/Versions/$$section(VERSION, .,0, 0)/Headers/$$VERSION/\"
++      \"$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework/Versions/$$section(VERSION, .,0, 0)/Headers/$$VERSION/$${MODULE_INCNAME}\"
+     )
+ !!ELSE
+     set(Qt5$${CMAKE_MODULE_NAME}_PRIVATE_INCLUDE_DIRS \"\")
+@@ -263,7 +220,6 @@ if (NOT TARGET Qt5::$${CMAKE_MODULE_NAME})
+     set(Qt5$${CMAKE_MODULE_NAME}_PRIVATE_INCLUDE_DIRS \"\")
+ !!ENDIF
+ !!ENDIF
+-!!ENDIF
+ !!IF !isEmpty(CMAKE_ADD_SOURCE_INCLUDE_DIRS)
+     include(\"${CMAKE_CURRENT_LIST_DIR}/ExtraSourceIncludes.cmake\" OPTIONAL)
+ !!ENDIF
+@@ -465,25 +421,13 @@ if (NOT TARGET Qt5::$${CMAKE_MODULE_NAME})
+ !!IF !isEmpty(CMAKE_FIND_OTHER_LIBRARY_BUILD)
+ !!IF isEmpty(CMAKE_DEBUG_TYPE)
+ !!IF !isEmpty(CMAKE_STATIC_WINDOWS_BUILD)
+-!!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-    if (EXISTS \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_IMPLIB_FILE_LOCATION_DEBUG}\" )
+-!!ELSE // CMAKE_LIB_DIR_IS_ABSOLUTE
+     if (EXISTS \"$${CMAKE_IMPLIB_FILE_LOCATION_DEBUG}\" )
+-!!ENDIF // CMAKE_LIB_DIR_IS_ABSOLUTE
+         _populate_$${CMAKE_MODULE_NAME}_target_properties(DEBUG \"$${CMAKE_IMPLIB_FILE_LOCATION_DEBUG}\" \"\" $${CMAKE_DEBUG_AND_RELEASE})
+ !!ELSE // CMAKE_STATIC_WINDOWS_BUILD
+     if (EXISTS
+-!!IF isEmpty(CMAKE_DLL_DIR_IS_ABSOLUTE)
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_DLL_DIR}$${CMAKE_LIB_FILE_LOCATION_DEBUG}\"
+-!!ELSE
+         \"$${CMAKE_LIB_FILE_LOCATION_DEBUG}\"
+-!!ENDIF
+       AND EXISTS
+-!!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_IMPLIB_FILE_LOCATION_DEBUG}\" )
+-!!ELSE
+         \"$${CMAKE_IMPLIB_FILE_LOCATION_DEBUG}\" )
+-!!ENDIF
+         _populate_$${CMAKE_MODULE_NAME}_target_properties(DEBUG \"$${CMAKE_LIB_FILE_LOCATION_DEBUG}\" \"$${CMAKE_IMPLIB_FILE_LOCATION_DEBUG}\" $${CMAKE_DEBUG_AND_RELEASE})
+ !!ENDIF // CMAKE_STATIC_WINDOWS_BUILD
+     endif()
+@@ -502,25 +446,13 @@ if (NOT TARGET Qt5::$${CMAKE_MODULE_NAME})
+ !!IF !isEmpty(CMAKE_FIND_OTHER_LIBRARY_BUILD)
+ !!IF isEmpty(CMAKE_RELEASE_TYPE)
+ !!IF !isEmpty(CMAKE_STATIC_WINDOWS_BUILD)
+-!!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-    if (EXISTS \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_IMPLIB_FILE_LOCATION_RELEASE}\" )
+-!!ELSE // CMAKE_LIB_DIR_IS_ABSOLUTE
+     if (EXISTS \"$${CMAKE_IMPLIB_FILE_LOCATION_RELEASE}\" )
+-!!ENDIF // CMAKE_LIB_DIR_IS_ABSOLUTE
+         _populate_$${CMAKE_MODULE_NAME}_target_properties(RELEASE \"$${CMAKE_IMPLIB_FILE_LOCATION_RELEASE}\" \"\" $${CMAKE_DEBUG_AND_RELEASE})
+ !!ELSE // CMAKE_STATIC_WINDOWS_BUILD
+     if (EXISTS
+-!!IF isEmpty(CMAKE_DLL_DIR_IS_ABSOLUTE)
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_DLL_DIR}$${CMAKE_LIB_FILE_LOCATION_RELEASE}\"
+-!!ELSE
+         \"$${CMAKE_LIB_FILE_LOCATION_RELEASE}\"
+-!!ENDIF
+       AND EXISTS
+-!!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_IMPLIB_FILE_LOCATION_RELEASE}\" )
+-!!ELSE
+         \"$${CMAKE_IMPLIB_FILE_LOCATION_RELEASE}\" )
+-!!ENDIF
+         _populate_$${CMAKE_MODULE_NAME}_target_properties(RELEASE \"$${CMAKE_LIB_FILE_LOCATION_RELEASE}\" \"$${CMAKE_IMPLIB_FILE_LOCATION_RELEASE}\" $${CMAKE_DEBUG_AND_RELEASE})
+ !!ENDIF // CMAKE_STATIC_WINDOWS_BUILD
+     endif()
+@@ -542,11 +474,7 @@ if (NOT TARGET Qt5::$${CMAKE_MODULE_NAME})
+           IsDebugAndRelease)
+         set_property(TARGET Qt5::${Plugin} APPEND PROPERTY IMPORTED_CONFIGURATIONS ${Configuration})
+ 
+-!!IF isEmpty(CMAKE_PLUGIN_DIR_IS_ABSOLUTE)
+-        set(imported_location \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_PLUGIN_DIR}${PLUGIN_LOCATION}\")
+-!!ELSE
+         set(imported_location \"$${CMAKE_PLUGIN_DIR}${PLUGIN_LOCATION}\")
+-!!ENDIF
+         _qt5_$${CMAKE_MODULE_NAME}_check_file_exists(${imported_location})
+         set_target_properties(Qt5::${Plugin} PROPERTIES
+             \"IMPORTED_LOCATION_${Configuration}\" ${imported_location}
+diff --git a/mkspecs/features/qml_module.prf b/mkspecs/features/qml_module.prf
+index c0b50416c9..cabe39b22e 100644
+--- a/mkspecs/features/qml_module.prf
++++ b/mkspecs/features/qml_module.prf
+@@ -51,7 +51,7 @@ builtin_resources {
+ # Install rules
+ qmldir.base = $$qmldir_path
+ qmldir.files = $$qmldir_file
+-qmldir.path = $$[QT_INSTALL_QML]/$$TARGETPATH
++qmldir.path = $$NIX_OUTPUT_QML/$$TARGETPATH
+ 
+ qmlfiles.base = $$_PRO_FILE_PWD_
+ qmlfiles.files = $$fq_aux_qml_files
+diff --git a/mkspecs/features/qml_plugin.prf b/mkspecs/features/qml_plugin.prf
+index f1c5658b04..029595e721 100644
+--- a/mkspecs/features/qml_plugin.prf
++++ b/mkspecs/features/qml_plugin.prf
+@@ -50,7 +50,7 @@ load(qt_build_paths)
+ 
+ DESTDIR = $$MODULE_BASE_OUTDIR/qml/$$TARGETPATH
+ 
+-target.path = $$[QT_INSTALL_QML]/$$TARGETPATH
++target.path = $$NIX_OUTPUT_QML/$$TARGETPATH
+ INSTALLS += target
+ 
+ # Some final setup
+diff --git a/mkspecs/features/qt_app.prf b/mkspecs/features/qt_app.prf
+index 8354f30eea..62028fef8e 100644
+--- a/mkspecs/features/qt_app.prf
++++ b/mkspecs/features/qt_app.prf
+@@ -30,7 +30,7 @@ host_build:force_bootstrap {
+     target.path = $$[QT_HOST_BINS]
+ } else {
+     !build_pass:qtConfig(debug_and_release): CONFIG += release
+-    target.path = $$[QT_INSTALL_BINS]
++    target.path = $$NIX_OUTPUT_BIN/bin
+     CONFIG += relative_qt_rpath  # Qt's tools and apps should be relocatable
+ }
+ INSTALLS += target
+diff --git a/mkspecs/features/qt_build_paths.prf b/mkspecs/features/qt_build_paths.prf
+index 3bb3823a8e..655b7b7db8 100644
+--- a/mkspecs/features/qt_build_paths.prf
++++ b/mkspecs/features/qt_build_paths.prf
+@@ -24,6 +24,6 @@ exists($$MODULE_BASE_INDIR/.git): \
+ !force_independent {
+     # If the module is not built independently, everything ends up in qtbase.
+     # This is the case in non-prefix builds, except for selected modules.
+-    MODULE_BASE_OUTDIR = $$[QT_HOST_PREFIX]
+-    MODULE_QMAKE_OUTDIR = $$[QT_HOST_PREFIX]
++    MODULE_BASE_OUTDIR = $$NIX_OUTPUT_OUT
++    MODULE_QMAKE_OUTDIR = $$NIX_OUTPUT_OUT
+ }
+diff --git a/mkspecs/features/qt_docs.prf b/mkspecs/features/qt_docs.prf
+index 095bf15dac..4cc977bea5 100644
+--- a/mkspecs/features/qt_docs.prf
++++ b/mkspecs/features/qt_docs.prf
+@@ -65,7 +65,7 @@ QMAKE_DOCS_OUTPUTDIR = $$QMAKE_DOCS_BASE_OUTDIR/$$QMAKE_DOCS_TARGETDIR
+ 
+ QDOC += -outputdir $$shell_quote($$QMAKE_DOCS_OUTPUTDIR)
+ !build_online_docs: \
+-    QDOC += -installdir $$shell_quote($$[QT_INSTALL_DOCS])
++    QDOC += -installdir $$shell_quote($$NIX_OUTPUT_DOC)
+ PREP_DOC_INDEXES =
+ DOC_INDEXES =
+ !isEmpty(QTREPOS) {
+@@ -84,8 +84,8 @@ DOC_INDEXES =
+         DOC_INDEXES += -indexdir $$shell_quote($$qrep/doc)
+ } else {
+     prepare_docs: \
+-        PREP_DOC_INDEXES += -indexdir $$shell_quote($$[QT_INSTALL_DOCS/get])
+-    DOC_INDEXES += -indexdir $$shell_quote($$[QT_INSTALL_DOCS/get])
++        PREP_DOC_INDEXES += -indexdir $$shell_quote($$NIX_OUTPUT_DOC)
++    DOC_INDEXES += -indexdir $$shell_quote($$NIX_OUTPUT_DOC)
+ }
+ 
+ qtattributionsscanner.target = qtattributionsscanner
+@@ -108,12 +108,12 @@ prepare_docs {
+     qch_docs.commands = $$QHELPGENERATOR $$shell_quote($$QMAKE_DOCS_OUTPUTDIR/$${QMAKE_DOCS_TARGET}.qhp) -o $$shell_quote($$QMAKE_DOCS_BASE_OUTDIR/$${QMAKE_DOCS_TARGET}.qch)
+ 
+     inst_html_docs.files = $$QMAKE_DOCS_OUTPUTDIR
+-    inst_html_docs.path = $$[QT_INSTALL_DOCS]
++    inst_html_docs.path = $$NIX_OUTPUT_DOC
+     inst_html_docs.CONFIG += no_check_exist directory no_default_install no_build
+     INSTALLS += inst_html_docs
+ 
+     inst_qch_docs.files = $$QMAKE_DOCS_BASE_OUTDIR/$${QMAKE_DOCS_TARGET}.qch
+-    inst_qch_docs.path = $$[QT_INSTALL_DOCS]
++    inst_qch_docs.path = $$NIX_OUTPUT_DOC
+     inst_qch_docs.CONFIG += no_check_exist no_default_install no_build
+     INSTALLS += inst_qch_docs
+ 
+diff --git a/mkspecs/features/qt_example_installs.prf b/mkspecs/features/qt_example_installs.prf
+index 72b47bce27..d59e949e78 100644
+--- a/mkspecs/features/qt_example_installs.prf
++++ b/mkspecs/features/qt_example_installs.prf
+@@ -90,7 +90,7 @@ sourcefiles += \
+     $$SOURCES $$HEADERS $$FORMS $$RESOURCES $$TRANSLATIONS \
+     $$DBUS_ADAPTORS $$DBUS_INTERFACES
+ addInstallFiles(sources.files, $$sourcefiles)
+-sources.path = $$[QT_INSTALL_EXAMPLES]/$$probase
++sources.path = $$NIX_OUTPUT_DEV/share/examples/$$probase
+ INSTALLS += sources
+ 
+ check_examples {
+diff --git a/mkspecs/features/qt_functions.prf b/mkspecs/features/qt_functions.prf
+index 7777e615bd..b0c6880a74 100644
+--- a/mkspecs/features/qt_functions.prf
++++ b/mkspecs/features/qt_functions.prf
+@@ -87,19 +87,22 @@ defineTest(qtHaveModule) {
+ defineTest(qtPrepareTool) {
+     cmd = $$eval(QT_TOOL.$${2}.binary)
+     isEmpty(cmd) {
+-        cmd = $$[QT_HOST_BINS]/$$2
+-        exists($${cmd}.pl) {
+-            $${1}_EXE = $${cmd}.pl
+-            cmd = perl -w $$system_path($${cmd}.pl)
+-        } else: contains(QMAKE_HOST.os, Windows) {
+-            $${1}_EXE = $${cmd}.exe
+-            cmd = $$system_path($${cmd}.exe)
+-        } else:contains(QMAKE_HOST.os, Darwin) {
+-            BUNDLENAME = $${cmd}.app/Contents/MacOS/$$2
+-            exists($$BUNDLENAME) {
+-                cmd = $$BUNDLENAME
++        cmd = $$system("command -v $${2}")
++        isEmpty(cmd) {
++            cmd = $$system("command -v $${2}.pl")
++            !isEmpty(cmd) {
++                $${1}_EXE = $$cmd
++                cmd = perl -w $$system_path($${cmd})
++            } else: contains(QMAKE_HOST.os, Windows) {
++                cmd = $$system("command -v $${2}.exe")
++                $${1}_EXE = $$cmd
++            } else: contains(QMAKE_HOST.os, Darwin) {
++                cmd = $$system("command -v $${2}.app")
++                !isEmpty(cmd) {
++                    cmd = $${cmd}/Contents/MacOS/$${2}
++                    $${1}_EXE = $$cmd
++                }
+             }
+-            $${1}_EXE = $$cmd
+         } else {
+             $${1}_EXE = $$cmd
+         }
+diff --git a/mkspecs/features/qt_installs.prf b/mkspecs/features/qt_installs.prf
+index 1ebca17366..a8f958eae8 100644
+--- a/mkspecs/features/qt_installs.prf
++++ b/mkspecs/features/qt_installs.prf
+@@ -12,16 +12,10 @@
+ #library
+ !qt_no_install_library {
+     win32 {
+-       host_build: \
+-           dlltarget.path = $$[QT_HOST_BINS]
+-       else: \
+-           dlltarget.path = $$[QT_INSTALL_BINS]
++       dlltarget.path = $$NIX_OUTPUT_BIN/bin
+        INSTALLS += dlltarget
+     }
+-    host_build: \
+-        target.path = $$[QT_HOST_LIBS]
+-    else: \
+-        target.path = $$[QT_INSTALL_LIBS]
++    target.path = $$NIX_OUTPUT_OUT/lib
+     !static: target.CONFIG = no_dll
+     INSTALLS += target
+ }
+@@ -29,35 +23,35 @@
+ #headers
+ qt_install_headers {
+     gen_headers.files = $$SYNCQT.GENERATED_HEADER_FILES
+-    gen_headers.path = $$[QT_INSTALL_HEADERS]/$$MODULE_INCNAME
++    gen_headers.path = $$NIX_OUTPUT_DEV/include/$$MODULE_INCNAME
+     INSTALLS += gen_headers
+ 
+     targ_headers.files = $$SYNCQT.HEADER_FILES $$SYNCQT.INJECTED_HEADER_FILES
+-    targ_headers.path = $$[QT_INSTALL_HEADERS]/$$MODULE_INCNAME
++    targ_headers.path = $$NIX_OUTPUT_DEV/include/$$MODULE_INCNAME
+     INSTALLS += targ_headers
+ 
+     private_headers.files = $$SYNCQT.PRIVATE_HEADER_FILES $$SYNCQT.INJECTED_PRIVATE_HEADER_FILES
+-    private_headers.path = $$[QT_INSTALL_HEADERS]/$$MODULE_INCNAME/$$VERSION/$$MODULE_INCNAME/private
++    private_headers.path = $$NIX_OUTPUT_DEV/include/$$MODULE_INCNAME/$$VERSION/$$MODULE_INCNAME/private
+     generated_privates: \
+         private_headers.CONFIG += no_check_exist
+     INSTALLS += private_headers
+ 
+     qpa_headers.files = $$SYNCQT.QPA_HEADER_FILES
+-    qpa_headers.path = $$[QT_INSTALL_HEADERS]/$$MODULE_INCNAME/$$VERSION/$$MODULE_INCNAME/qpa
++    qpa_headers.path = $$NIX_OUTPUT_DEV/include/$$MODULE_INCNAME/$$VERSION/$$MODULE_INCNAME/qpa
+     INSTALLS += qpa_headers
+ }
+ 
+ #module
+ qt_install_module {
+     !isEmpty(MODULE_PRI) {
+-        pritarget.path = $$[QT_HOST_DATA]/mkspecs/modules
++        pritarget.path = $$NIX_OUTPUT_DEV/mkspecs/modules
+         pritarget.files = $$MODULE_PRI
+         INSTALLS += pritarget
+     } else: isEmpty(MODULE_PRIVATE_PRI) {
+         warning("Project $$basename(_PRO_FILE_) is a module, but has not defined MODULE_PRI, which is required for Qt to expose the module to other projects.")
+     }
+     !isEmpty(MODULE_PRIVATE_PRI) {
+-        privpritarget.path = $$[QT_HOST_DATA]/mkspecs/modules
++        privpritarget.path = $$NIX_OUTPUT_DEV/mkspecs/modules
+         privpritarget.files = $$MODULE_PRIVATE_PRI
+         INSTALLS += privpritarget
+     }
+diff --git a/mkspecs/features/qt_plugin.prf b/mkspecs/features/qt_plugin.prf
+index 573d717eea..024c624cb6 100644
+--- a/mkspecs/features/qt_plugin.prf
++++ b/mkspecs/features/qt_plugin.prf
+@@ -88,7 +88,7 @@ CONFIG(static, static|shared)|prefix_build {
+     }
+ }
+ 
+-target.path = $$[QT_INSTALL_PLUGINS]/$$PLUGIN_TYPE
++target.path = $$NIX_OUTPUT_PLUGIN/$$PLUGIN_TYPE
+ INSTALLS += target
+ 
+ qt_libinfix_plugins: TARGET = $$TARGET$$QT_LIBINFIX
+-- 
+2.29.3
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0004-qtbase-replace-libdir.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0004-qtbase-replace-libdir.patch
new file mode 100644
index 000000000000..86ea2e75d9be
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0004-qtbase-replace-libdir.patch
@@ -0,0 +1,68 @@
+From 1cae0c31c9849615190ee175ebf929b3aca13fe0 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Milan=20P=C3=A4ssler?= <me@pbb.lc>
+Date: Sat, 4 Apr 2020 00:27:41 +0200
+Subject: [PATCH 04/10] qtbase-replace-libdir
+
+---
+ mkspecs/features/qt_common.prf | 20 ++------------------
+ mkspecs/features/qt_module.prf |  5 +----
+ 2 files changed, 3 insertions(+), 22 deletions(-)
+
+diff --git a/mkspecs/features/qt_common.prf b/mkspecs/features/qt_common.prf
+index c24f2c6062..0d72ce7286 100644
+--- a/mkspecs/features/qt_common.prf
++++ b/mkspecs/features/qt_common.prf
+@@ -31,32 +31,16 @@ contains(TEMPLATE, .*lib) {
+         rplbase = $$dirname(_QMAKE_SUPER_CACHE_)/[^/][^/]*
+     else: \
+         rplbase = $$MODULE_BASE_OUTDIR
+-    host_build {
+-        qqt_libdir = \$\$\$\$[QT_HOST_LIBS]
+-        qt_libdir = $$[QT_HOST_LIBS]
+-    } else {
+-        qqt_libdir = \$\$\$\$[QT_INSTALL_LIBS]
+-        qt_libdir = $$[QT_INSTALL_LIBS]
+-    }
++    qt_libdir = $$NIX_OUTPUT_OUT/lib
+     contains(QMAKE_DEFAULT_LIBDIRS, $$qt_libdir) {
+-        lib_replace0.match = $$rplbase/lib/
+-        lib_replace0.replace = $$qqt_libdir/
+-        lib_replace0.CONFIG = path
+-        QMAKE_PRL_INSTALL_REPLACE += lib_replace0
+         lib_replace.match = "[^ ']*$$rplbase/lib"
+         lib_replace.replace =
+     } else {
+         lib_replace.match = $$rplbase/lib
+-        lib_replace.replace = $$qqt_libdir
++        lib_replace.replace = $$qt_libdir
+     }
+     lib_replace.CONFIG = path
+     QMAKE_PRL_INSTALL_REPLACE += lib_replace
+-    !equals(qt_libdir, $$rplbase/lib) {
+-        qtlibdir_replace.match = $$qt_libdir
+-        qtlibdir_replace.replace = $$qqt_libdir
+-        qtlibdir_replace.CONFIG = path
+-        QMAKE_PRL_INSTALL_REPLACE += qtlibdir_replace
+-    }
+ }
+ 
+ # The remainder of this file must not apply to host tools/libraries,
+diff --git a/mkspecs/features/qt_module.prf b/mkspecs/features/qt_module.prf
+index 828a9621b9..b9e5d35026 100644
+--- a/mkspecs/features/qt_module.prf
++++ b/mkspecs/features/qt_module.prf
+@@ -305,10 +305,7 @@ load(qt_targets)
+ }
+ !lib_bundle:unix {
+     CONFIG += create_libtool
+-    host_build: \
+-        QMAKE_LIBTOOL_LIBDIR = $$[QT_HOST_LIBS]
+-    else: \
+-        QMAKE_LIBTOOL_LIBDIR = "=$$[QT_INSTALL_LIBS/raw]"
++    QMAKE_LIBTOOL_LIBDIR = $$NIX_OUTPUT_OUT/lib
+     !isEmpty(lib_replace0.match) {
+         ltlib_replace0.match = $$lib_replace0.match
+         ltlib_replace0.replace = $$QMAKE_LIBTOOL_LIBDIR/
+-- 
+2.25.1
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0005-qtbase-cmake.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0005-qtbase-cmake.patch
new file mode 100644
index 000000000000..85a729563417
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0005-qtbase-cmake.patch
@@ -0,0 +1,194 @@
+From 7e93d1330e1f8c8cd68334201ad100b8c05c9ab5 Mon Sep 17 00:00:00 2001
+From: Thomas Tuegel <ttuegel@mailbox.org>
+Date: Tue, 17 Sep 2019 05:34:28 -0500
+Subject: [PATCH 05/10] qtbase-cmake
+
+---
+ mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in  |  2 +-
+ mkspecs/features/data/cmake/Qt5PluginTarget.cmake.in |  4 ++--
+ src/corelib/Qt5CoreConfigExtras.cmake.in             | 10 +++++-----
+ src/corelib/Qt5CoreConfigExtrasMkspecDir.cmake.in    |  2 +-
+ .../Qt5CoreConfigExtrasMkspecDirForInstall.cmake.in  |  2 +-
+ src/dbus/Qt5DBusConfigExtras.cmake.in                | 12 ++----------
+ src/gui/Qt5GuiConfigExtras.cmake.in                  |  6 +++---
+ src/widgets/Qt5WidgetsConfigExtras.cmake.in          |  2 +-
+ 8 files changed, 16 insertions(+), 24 deletions(-)
+
+diff --git a/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in b/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in
+index 87679b7e68..57060e6470 100644
+--- a/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in
++++ b/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in
+@@ -474,7 +474,7 @@ if (NOT TARGET Qt5::$${CMAKE_MODULE_NAME})
+           IsDebugAndRelease)
+         set_property(TARGET Qt5::${Plugin} APPEND PROPERTY IMPORTED_CONFIGURATIONS ${Configuration})
+ 
+-        set(imported_location \"$${CMAKE_PLUGIN_DIR}${PLUGIN_LOCATION}\")
++        set(imported_location \"${PLUGIN_LOCATION}\")
+         _qt5_$${CMAKE_MODULE_NAME}_check_file_exists(${imported_location})
+         set_target_properties(Qt5::${Plugin} PROPERTIES
+             \"IMPORTED_LOCATION_${Configuration}\" ${imported_location}
+diff --git a/mkspecs/features/data/cmake/Qt5PluginTarget.cmake.in b/mkspecs/features/data/cmake/Qt5PluginTarget.cmake.in
+index 7b70cfed09..e700cfa539 100644
+--- a/mkspecs/features/data/cmake/Qt5PluginTarget.cmake.in
++++ b/mkspecs/features/data/cmake/Qt5PluginTarget.cmake.in
+@@ -53,10 +53,10 @@ set_property(TARGET Qt5::$$CMAKE_PLUGIN_NAME PROPERTY INTERFACE_SOURCES
+ !!ENDIF
+ 
+ !!IF !isEmpty(CMAKE_RELEASE_TYPE)
+-_populate_$${CMAKE_MODULE_NAME}_plugin_properties($$CMAKE_PLUGIN_NAME RELEASE \"$${CMAKE_PLUGIN_LOCATION_RELEASE}\" $${CMAKE_DEBUG_AND_RELEASE})
++_populate_$${CMAKE_MODULE_NAME}_plugin_properties($$CMAKE_PLUGIN_NAME RELEASE \"$${CMAKE_PLUGIN_DIR}$${CMAKE_PLUGIN_LOCATION_RELEASE}\" $${CMAKE_DEBUG_AND_RELEASE})
+ !!ENDIF
+ !!IF !isEmpty(CMAKE_DEBUG_TYPE)
+-_populate_$${CMAKE_MODULE_NAME}_plugin_properties($$CMAKE_PLUGIN_NAME DEBUG \"$${CMAKE_PLUGIN_LOCATION_DEBUG}\" $${CMAKE_DEBUG_AND_RELEASE})
++_populate_$${CMAKE_MODULE_NAME}_plugin_properties($$CMAKE_PLUGIN_NAME DEBUG \"$${CMAKE_PLUGIN_DIR}$${CMAKE_PLUGIN_LOCATION_DEBUG}\" $${CMAKE_DEBUG_AND_RELEASE})
+ !!ENDIF
+ 
+ list(APPEND Qt5$${CMAKE_MODULE_NAME}_PLUGINS Qt5::$$CMAKE_PLUGIN_NAME)
+diff --git a/src/corelib/Qt5CoreConfigExtras.cmake.in b/src/corelib/Qt5CoreConfigExtras.cmake.in
+index 9b672327ef..319ba94d6d 100644
+--- a/src/corelib/Qt5CoreConfigExtras.cmake.in
++++ b/src/corelib/Qt5CoreConfigExtras.cmake.in
+@@ -3,7 +3,7 @@ if (NOT TARGET Qt5::qmake)
+     add_executable(Qt5::qmake IMPORTED)
+ 
+ !!IF isEmpty(CMAKE_BIN_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5Core_install_prefix}/$${CMAKE_BIN_DIR}qmake$$CMAKE_BIN_SUFFIX\")
++    set(imported_location \"$$NIX_OUTPUT_DEV/$${CMAKE_BIN_DIR}qmake$$CMAKE_BIN_SUFFIX\")
+ !!ELSE
+     set(imported_location \"$${CMAKE_BIN_DIR}qmake$$CMAKE_BIN_SUFFIX\")
+ !!ENDIF
+@@ -18,7 +18,7 @@ if (NOT TARGET Qt5::moc)
+     add_executable(Qt5::moc IMPORTED)
+ 
+ !!IF isEmpty(CMAKE_BIN_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5Core_install_prefix}/$${CMAKE_BIN_DIR}moc$$CMAKE_BIN_SUFFIX\")
++    set(imported_location \"$$NIX_OUTPUT_DEV/$${CMAKE_BIN_DIR}moc$$CMAKE_BIN_SUFFIX\")
+ !!ELSE
+     set(imported_location \"$${CMAKE_BIN_DIR}moc$$CMAKE_BIN_SUFFIX\")
+ !!ENDIF
+@@ -35,7 +35,7 @@ if (NOT TARGET Qt5::rcc)
+     add_executable(Qt5::rcc IMPORTED)
+ 
+ !!IF isEmpty(CMAKE_BIN_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5Core_install_prefix}/$${CMAKE_BIN_DIR}rcc$$CMAKE_BIN_SUFFIX\")
++    set(imported_location \"$$NIX_OUTPUT_DEV/$${CMAKE_BIN_DIR}rcc$$CMAKE_BIN_SUFFIX\")
+ !!ELSE
+     set(imported_location \"$${CMAKE_BIN_DIR}rcc$$CMAKE_BIN_SUFFIX\")
+ !!ENDIF
+@@ -118,7 +118,7 @@ if (NOT TARGET Qt5::WinMain)
+ !!IF !isEmpty(CMAKE_RELEASE_TYPE)
+     set_property(TARGET Qt5::WinMain APPEND PROPERTY IMPORTED_CONFIGURATIONS RELEASE)
+ !!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5Core_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_WINMAIN_FILE_LOCATION_RELEASE}\")
++    set(imported_location \"$$NIX_OUTPUT_DEV/$${CMAKE_LIB_DIR}$${CMAKE_WINMAIN_FILE_LOCATION_RELEASE}\")
+ !!ELSE
+     set(imported_location \"$${CMAKE_LIB_DIR}$${CMAKE_WINMAIN_FILE_LOCATION_RELEASE}\")
+ !!ENDIF
+@@ -132,7 +132,7 @@ if (NOT TARGET Qt5::WinMain)
+     set_property(TARGET Qt5::WinMain APPEND PROPERTY IMPORTED_CONFIGURATIONS DEBUG)
+ 
+ !!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5Core_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_WINMAIN_FILE_LOCATION_DEBUG}\")
++    set(imported_location \"$$NIX_OUTPUT_DEV/$${CMAKE_LIB_DIR}$${CMAKE_WINMAIN_FILE_LOCATION_DEBUG}\")
+ !!ELSE
+     set(imported_location \"$${CMAKE_LIB_DIR}$${CMAKE_WINMAIN_FILE_LOCATION_DEBUG}\")
+ !!ENDIF
+diff --git a/src/corelib/Qt5CoreConfigExtrasMkspecDir.cmake.in b/src/corelib/Qt5CoreConfigExtrasMkspecDir.cmake.in
+index c357237d0e..6f0c75de3c 100644
+--- a/src/corelib/Qt5CoreConfigExtrasMkspecDir.cmake.in
++++ b/src/corelib/Qt5CoreConfigExtrasMkspecDir.cmake.in
+@@ -1,6 +1,6 @@
+ 
+ !!IF isEmpty(CMAKE_HOST_DATA_DIR_IS_ABSOLUTE)
+-set(_qt5_corelib_extra_includes \"${_qt5Core_install_prefix}/$${CMAKE_HOST_DATA_DIR}/mkspecs/$${CMAKE_MKSPEC}\")
++set(_qt5_corelib_extra_includes \"$$NIX_OUTPUT_DEV/$${CMAKE_HOST_DATA_DIR}/mkspecs/$${CMAKE_MKSPEC}\")
+ !!ELSE
+ set(_qt5_corelib_extra_includes \"$${CMAKE_HOST_DATA_DIR}mkspecs/$${CMAKE_MKSPEC}\")
+ !!ENDIF
+diff --git a/src/corelib/Qt5CoreConfigExtrasMkspecDirForInstall.cmake.in b/src/corelib/Qt5CoreConfigExtrasMkspecDirForInstall.cmake.in
+index 706304cf34..546420f6ad 100644
+--- a/src/corelib/Qt5CoreConfigExtrasMkspecDirForInstall.cmake.in
++++ b/src/corelib/Qt5CoreConfigExtrasMkspecDirForInstall.cmake.in
+@@ -1,6 +1,6 @@
+ 
+ !!IF isEmpty(CMAKE_INSTALL_DATA_DIR_IS_ABSOLUTE)
+-set(_qt5_corelib_extra_includes \"${_qt5Core_install_prefix}/$${CMAKE_INSTALL_DATA_DIR}/mkspecs/$${CMAKE_MKSPEC}\")
++set(_qt5_corelib_extra_includes \"$$NIX_OUTPUT_DEV/$${CMAKE_INSTALL_DATA_DIR}/mkspecs/$${CMAKE_MKSPEC}\")
+ !!ELSE
+ set(_qt5_corelib_extra_includes \"$${CMAKE_INSTALL_DATA_DIR}mkspecs/$${CMAKE_MKSPEC}\")
+ !!ENDIF
+diff --git a/src/dbus/Qt5DBusConfigExtras.cmake.in b/src/dbus/Qt5DBusConfigExtras.cmake.in
+index 1d947159e2..b36865fc48 100644
+--- a/src/dbus/Qt5DBusConfigExtras.cmake.in
++++ b/src/dbus/Qt5DBusConfigExtras.cmake.in
+@@ -2,11 +2,7 @@
+ if (NOT TARGET Qt5::qdbuscpp2xml)
+     add_executable(Qt5::qdbuscpp2xml IMPORTED)
+ 
+-!!IF isEmpty(CMAKE_BIN_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5DBus_install_prefix}/$${CMAKE_BIN_DIR}qdbuscpp2xml$$CMAKE_BIN_SUFFIX\")
+-!!ELSE
+-    set(imported_location \"$${CMAKE_BIN_DIR}qdbuscpp2xml$$CMAKE_BIN_SUFFIX\")
+-!!ENDIF
++    set(imported_location \"$$NIX_OUTPUT_DEV/bin/qdbuscpp2xml$$CMAKE_BIN_SUFFIX\")
+     _qt5_DBus_check_file_exists(${imported_location})
+ 
+     set_target_properties(Qt5::qdbuscpp2xml PROPERTIES
+@@ -17,11 +13,7 @@ endif()
+ if (NOT TARGET Qt5::qdbusxml2cpp)
+     add_executable(Qt5::qdbusxml2cpp IMPORTED)
+ 
+-!!IF isEmpty(CMAKE_BIN_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5DBus_install_prefix}/$${CMAKE_BIN_DIR}qdbusxml2cpp$$CMAKE_BIN_SUFFIX\")
+-!!ELSE
+-    set(imported_location \"$${CMAKE_BIN_DIR}qdbusxml2cpp$$CMAKE_BIN_SUFFIX\")
+-!!ENDIF
++    set(imported_location \"$$NIX_OUTPUT_DEV/bin/qdbusxml2cpp$$CMAKE_BIN_SUFFIX\")
+     _qt5_DBus_check_file_exists(${imported_location})
+ 
+     set_target_properties(Qt5::qdbusxml2cpp PROPERTIES
+diff --git a/src/gui/Qt5GuiConfigExtras.cmake.in b/src/gui/Qt5GuiConfigExtras.cmake.in
+index 84dbbfebd4..8ad0720c5c 100644
+--- a/src/gui/Qt5GuiConfigExtras.cmake.in
++++ b/src/gui/Qt5GuiConfigExtras.cmake.in
+@@ -2,7 +2,7 @@
+ !!IF !isEmpty(CMAKE_ANGLE_EGL_DLL_RELEASE)
+ 
+ !!IF isEmpty(CMAKE_INCLUDE_DIR_IS_ABSOLUTE)
+-set(Qt5Gui_EGL_INCLUDE_DIRS \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$$CMAKE_INCLUDE_DIR/QtANGLE\")
++set(Qt5Gui_EGL_INCLUDE_DIRS \"$$NIX_OUTPUT_DEV/$$CMAKE_INCLUDE_DIR/QtANGLE\")
+ !!ELSE
+ set(Qt5Gui_EGL_INCLUDE_DIRS \"$$CMAKE_INCLUDE_DIR/QtANGLE\")
+ !!ENDIF
+@@ -17,13 +17,13 @@ macro(_populate_qt5gui_gl_target_properties TargetName Configuration LIB_LOCATIO
+     set_property(TARGET Qt5::${TargetName} APPEND PROPERTY IMPORTED_CONFIGURATIONS ${Configuration})
+ 
+ !!IF isEmpty(CMAKE_DLL_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5Gui_install_prefix}/$${CMAKE_DLL_DIR}${LIB_LOCATION}\")
++    set(imported_location \"$$NIX_OUTPUT_OUT/$${CMAKE_DLL_DIR}${LIB_LOCATION}\")
+ !!ELSE
+     set(imported_location \"$${CMAKE_DLL_DIR}${LIB_LOCATION}\")
+ !!ENDIF
+ 
+ !!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-    set(imported_implib \"${_qt5Gui_install_prefix}/$${CMAKE_LIB_DIR}${IMPLIB_LOCATION}\")
++    set(imported_implib \"$$NIX_OUTPUT_OUT/$${CMAKE_LIB_DIR}${IMPLIB_LOCATION}\")
+ !!ELSE
+     set(imported_implib \"$${CMAKE_LIB_DIR}${IMPLIB_LOCATION}\")
+ !!ENDIF
+diff --git a/src/widgets/Qt5WidgetsConfigExtras.cmake.in b/src/widgets/Qt5WidgetsConfigExtras.cmake.in
+index 99d87e2e46..a4eab2aa72 100644
+--- a/src/widgets/Qt5WidgetsConfigExtras.cmake.in
++++ b/src/widgets/Qt5WidgetsConfigExtras.cmake.in
+@@ -3,7 +3,7 @@ if (NOT TARGET Qt5::uic)
+     add_executable(Qt5::uic IMPORTED)
+ 
+ !!IF isEmpty(CMAKE_BIN_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5Widgets_install_prefix}/$${CMAKE_BIN_DIR}uic$$CMAKE_BIN_SUFFIX\")
++    set(imported_location \"$$NIX_OUTPUT_DEV/$${CMAKE_BIN_DIR}uic$$CMAKE_BIN_SUFFIX\")
+ !!ELSE
+     set(imported_location \"$${CMAKE_BIN_DIR}uic$$CMAKE_BIN_SUFFIX\")
+ !!ENDIF
+-- 
+2.25.1
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0006-qtbase-gtk3.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0006-qtbase-gtk3.patch
new file mode 100644
index 000000000000..6ce0e5d0c433
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0006-qtbase-gtk3.patch
@@ -0,0 +1,48 @@
+From 1ad04525cdd342e3c8a750323fb3a61b93fee753 Mon Sep 17 00:00:00 2001
+From: Thomas Tuegel <ttuegel@mailbox.org>
+Date: Tue, 17 Sep 2019 05:35:33 -0500
+Subject: [PATCH 06/10] qtbase-gtk3
+
+---
+ src/plugins/platformthemes/gtk3/main.cpp | 17 ++++++++++++++++-
+ 1 file changed, 16 insertions(+), 1 deletion(-)
+
+diff --git a/src/plugins/platformthemes/gtk3/main.cpp b/src/plugins/platformthemes/gtk3/main.cpp
+index fb1c425d8e..bb8bab9795 100644
+--- a/src/plugins/platformthemes/gtk3/main.cpp
++++ b/src/plugins/platformthemes/gtk3/main.cpp
+@@ -39,6 +39,7 @@
+ 
+ #include <qpa/qplatformthemeplugin.h>
+ #include "qgtk3theme.h"
++#include <QFile>
+ 
+ QT_BEGIN_NAMESPACE
+ 
+@@ -54,8 +55,22 @@ public:
+ QPlatformTheme *QGtk3ThemePlugin::create(const QString &key, const QStringList &params)
+ {
+     Q_UNUSED(params);
+-    if (!key.compare(QLatin1String(QGtk3Theme::name), Qt::CaseInsensitive))
++    if (!key.compare(QLatin1String(QGtk3Theme::name), Qt::CaseInsensitive)) {
++
++#ifdef NIXPKGS_QGTK3_XDG_DATA_DIRS
++        QStringList XDG_DATA_DIRS = QFile::decodeName(qgetenv("XDG_DATA_DIRS")).split(':');
++        XDG_DATA_DIRS << QLatin1String(NIXPKGS_QGTK3_XDG_DATA_DIRS);
++        qputenv("XDG_DATA_DIRS", QFile::encodeName(XDG_DATA_DIRS.join(':')));
++#endif
++
++#ifdef NIXPKGS_QGTK3_GIO_EXTRA_MODULES
++        QStringList GIO_EXTRA_MODULES = QFile::decodeName(qgetenv("GIO_EXTRA_MODULES")).split(':');
++        GIO_EXTRA_MODULES << QLatin1String(NIXPKGS_QGTK3_GIO_EXTRA_MODULES);
++        qputenv("GIO_EXTRA_MODULES", QFile::encodeName(GIO_EXTRA_MODULES.join(':')));
++#endif
++
+         return new QGtk3Theme;
++    }
+ 
+     return 0;
+ }
+-- 
+2.25.1
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0007-qtbase-xcursor.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0007-qtbase-xcursor.patch
new file mode 100644
index 000000000000..6a92a9528303
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0007-qtbase-xcursor.patch
@@ -0,0 +1,29 @@
+From cc953cc3f736fabef1f5c211964f30be719fb35e Mon Sep 17 00:00:00 2001
+From: Thomas Tuegel <ttuegel@mailbox.org>
+Date: Tue, 17 Sep 2019 05:35:58 -0500
+Subject: [PATCH 07/10] qtbase-xcursor
+
+---
+ src/plugins/platforms/xcb/qxcbcursor.cpp | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/plugins/platforms/xcb/qxcbcursor.cpp b/src/plugins/platforms/xcb/qxcbcursor.cpp
+index fbadab4d50..c83ce0af5b 100644
+--- a/src/plugins/platforms/xcb/qxcbcursor.cpp
++++ b/src/plugins/platforms/xcb/qxcbcursor.cpp
+@@ -317,10 +317,10 @@ QXcbCursor::QXcbCursor(QXcbConnection *conn, QXcbScreen *screen)
+ #if QT_CONFIG(xcb_xlib) && QT_CONFIG(library)
+     static bool function_ptrs_not_initialized = true;
+     if (function_ptrs_not_initialized) {
+-        QLibrary xcursorLib(QLatin1String("Xcursor"), 1);
++        QLibrary xcursorLib(QLatin1String(NIXPKGS_LIBXCURSOR), 1);
+         bool xcursorFound = xcursorLib.load();
+         if (!xcursorFound) { // try without the version number
+-            xcursorLib.setFileName(QLatin1String("Xcursor"));
++            xcursorLib.setFileName(QLatin1String(NIXPKGS_LIBXCURSOR));
+             xcursorFound = xcursorLib.load();
+         }
+         if (xcursorFound) {
+-- 
+2.25.1
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0008-qtbase-tzdir.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0008-qtbase-tzdir.patch
new file mode 100644
index 000000000000..71653a0e36e0
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0008-qtbase-tzdir.patch
@@ -0,0 +1,64 @@
+From 882343ea200fe28810bf217a820816affe885a39 Mon Sep 17 00:00:00 2001
+From: Thomas Tuegel <ttuegel@mailbox.org>
+Date: Tue, 17 Sep 2019 05:36:25 -0500
+Subject: [PATCH 08/10] qtbase-tzdir
+
+---
+ src/corelib/time/qtimezoneprivate_tz.cpp | 31 +++++++++++++++---------
+ 1 file changed, 19 insertions(+), 12 deletions(-)
+
+diff --git a/src/corelib/time/qtimezoneprivate_tz.cpp b/src/corelib/time/qtimezoneprivate_tz.cpp
+index 3c2695a789..e75735f88f 100644
+--- a/src/corelib/time/qtimezoneprivate_tz.cpp
++++ b/src/corelib/time/qtimezoneprivate_tz.cpp
+@@ -75,7 +75,11 @@ typedef QHash<QByteArray, QTzTimeZone> QTzTimeZoneHash;
+ // Parse zone.tab table, assume lists all installed zones, if not will need to read directories
+ static QTzTimeZoneHash loadTzTimeZones()
+ {
+-    QString path = QStringLiteral("/usr/share/zoneinfo/zone.tab");
++    // Try TZDIR first, in case we're running on NixOS.
++    QString path = QFile::decodeName(qgetenv("TZDIR")) + QStringLiteral("/zone.tab");
++    // Fallback to traditional paths in case we are not on NixOS.
++    if (!QFile::exists(path))
++        path = QStringLiteral("/usr/share/zoneinfo/zone.tab");
+     if (!QFile::exists(path))
+         path = QStringLiteral("/usr/lib/zoneinfo/zone.tab");
+ 
+@@ -658,20 +662,23 @@ void QTzTimeZonePrivate::init(const QByteArray &ianaId)
+         if (!tzif.open(QIODevice::ReadOnly))
+             return;
+     } else {
+-        // Open named tz, try modern path first, if fails try legacy path
+-        tzif.setFileName(QLatin1String("/usr/share/zoneinfo/") + QString::fromLocal8Bit(ianaId));
++        // Try TZDIR first, in case we're running on NixOS
++        tzif.setFileName(QFile::decodeName(qgetenv("TZDIR")) + QStringLiteral("/") + QString::fromLocal8Bit(ianaId));
+         if (!tzif.open(QIODevice::ReadOnly)) {
+-            tzif.setFileName(QLatin1String("/usr/lib/zoneinfo/") + QString::fromLocal8Bit(ianaId));
++            tzif.setFileName(QLatin1String("/usr/share/zoneinfo/") + QString::fromLocal8Bit(ianaId));
+             if (!tzif.open(QIODevice::ReadOnly)) {
+-                // ianaId may be a POSIX rule, taken from $TZ or /etc/TZ
+-                const QByteArray zoneInfo = ianaId.split(',').at(0);
+-                const char *begin = zoneInfo.constBegin();
+-                if (PosixZone::parse(begin, zoneInfo.constEnd()).hasValidOffset()
+-                    && (begin == zoneInfo.constEnd()
+-                        || PosixZone::parse(begin, zoneInfo.constEnd()).hasValidOffset())) {
+-                    m_id = m_posixRule = ianaId;
++                tzif.setFileName(QLatin1String("/usr/lib/zoneinfo/") + QString::fromLocal8Bit(ianaId));
++                if (!tzif.open(QIODevice::ReadOnly)) {
++                    // ianaId may be a POSIX rule, taken from $TZ or /etc/TZ
++                    const QByteArray zoneInfo = ianaId.split(',').at(0);
++                    const char *begin = zoneInfo.constBegin();
++                    if (PosixZone::parse(begin, zoneInfo.constEnd()).hasValidOffset()
++                        && (begin == zoneInfo.constEnd()
++                            || PosixZone::parse(begin, zoneInfo.constEnd()).hasValidOffset())) {
++                        m_id = m_posixRule = ianaId;
++                    }
++                    return;
+                 }
+-                return;
+             }
+         }
+     }
+-- 
+2.25.1
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0009-qtbase-qtpluginpath.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0009-qtbase-qtpluginpath.patch
new file mode 100644
index 000000000000..009fe14838e7
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0009-qtbase-qtpluginpath.patch
@@ -0,0 +1,19 @@
+--- qtbase-everywhere-src-5.14.2/src/corelib/kernel/qcoreapplication.cpp	2020-03-27 10:49:31.000000000 +0100
++++ qtbase-everywhere-src-5.14.2/src/corelib/kernel/qcoreapplication.cpp.patched	2020-05-09 15:03:03.968084088 +0200
+@@ -2691,6 +2691,16 @@
+         QStringList *app_libpaths = new QStringList;
+         coreappdata()->app_libpaths.reset(app_libpaths);
+
++        // Add library paths derived from PATH
++        const QStringList paths = QFile::decodeName(qgetenv("PATH")).split(':');
++        const QString plugindir = QStringLiteral("../" NIXPKGS_QT_PLUGIN_PREFIX);
++        for (const QString &path: paths) {
++            if (!path.isEmpty()) {
++                app_libpaths->append(QDir::cleanPath(path + QDir::separator() + plugindir));
++            }
++        }
++
++
+         auto setPathsFromEnv = [&](QString libPathEnv) {
+             if (!libPathEnv.isEmpty()) {
+                 QStringList paths = libPathEnv.split(QDir::listSeparator(), QString::SkipEmptyParts);
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0010-qtbase-assert.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0010-qtbase-assert.patch
new file mode 100644
index 000000000000..e10f97607326
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0010-qtbase-assert.patch
@@ -0,0 +1,32 @@
+From c8893a4e0a1b46796e39b4a338358fdb45685cba Mon Sep 17 00:00:00 2001
+From: Thomas Tuegel <ttuegel@mailbox.org>
+Date: Tue, 17 Sep 2019 05:37:04 -0500
+Subject: [PATCH 09/10] qtbase-assert
+
+---
+ src/testlib/qtestassert.h | 7 +++++--
+ 1 file changed, 5 insertions(+), 2 deletions(-)
+
+diff --git a/src/testlib/qtestassert.h b/src/testlib/qtestassert.h
+index 6498ea84ef..d821ced7fc 100644
+--- a/src/testlib/qtestassert.h
++++ b/src/testlib/qtestassert.h
+@@ -44,10 +44,13 @@
+ 
+ QT_BEGIN_NAMESPACE
+ 
+-
++#if defined(QT_NO_DEBUG) && !defined(QT_FORCE_ASSERTS)
++#define QTEST_ASSERT(cond) do { } while ((false) && (cond))
++#define QTEST_ASSERT_X(cond, where, what) do { } while ((false) && (cond))
++#else
+ #define QTEST_ASSERT(cond) do { if (!(cond)) qt_assert(#cond,__FILE__,__LINE__); } while (false)
+-
+ #define QTEST_ASSERT_X(cond, where, what) do { if (!(cond)) qt_assert_x(where, what,__FILE__,__LINE__); } while (false)
++#endif
+ 
+ QT_END_NAMESPACE
+ 
+-- 
+2.25.1
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0011-fix-header_module.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0011-fix-header_module.patch
new file mode 100644
index 000000000000..4358097dddf2
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0011-fix-header_module.patch
@@ -0,0 +1,25 @@
+From 4c488fdb457e63924383fb7f8ad45bed3df49480 Mon Sep 17 00:00:00 2001
+From: Will Dietz <w@wdtz.org>
+Date: Mon, 30 Sep 2019 20:15:40 -0500
+Subject: [PATCH 10/10] fix header_module
+
+---
+ mkspecs/features/qt_module.prf | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/mkspecs/features/qt_module.prf b/mkspecs/features/qt_module.prf
+index 16b39031bc..1ac3d6fe59 100644
+--- a/mkspecs/features/qt_module.prf
++++ b/mkspecs/features/qt_module.prf
+@@ -84,7 +84,7 @@ header_module {
+         CONFIG  += qt_no_install_library
+ 
+     # Allow creation of .prl, .la and .pc files.
+-    target.path = $$[QT_INSTALL_LIBS]
++    target.path = $$NIX_OUTPUT_OUT/lib
+     target.CONFIG += dummy_install
+     INSTALLS    += target
+ } else {
+-- 
+2.25.1
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0012-qtbase-tbd-frameworks.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0012-qtbase-tbd-frameworks.patch
new file mode 100644
index 000000000000..8a5939978a6b
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0012-qtbase-tbd-frameworks.patch
@@ -0,0 +1,15 @@
+diff --git a/src/gui/Qt5GuiConfigExtras.cmake.in b/src/gui/Qt5GuiConfigExtras.cmake.in
+index 84dbbfebd4..615bfed124 100644
+--- a/src/gui/Qt5GuiConfigExtras.cmake.in
++++ b/src/gui/Qt5GuiConfigExtras.cmake.in
+@@ -119,6 +119,10 @@ macro(_qt5gui_find_extra_libs Name Libs LibDir IncDirs)
+             if (NOT EXISTS "${Qt5Gui_${_cmake_lib_name}_LIBRARY}")
+                 set(Qt5Gui_${_cmake_lib_name}_LIBRARY)
+             endif()
++            set(Qt5Gui_${_cmake_lib_name}_LIBRARY "${Qt5Gui_${_cmake_lib_name}_LIBRARY}/${_lib}.tbd")
++            if (NOT EXISTS "${Qt5Gui_${_cmake_lib_name}_LIBRARY}")
++                set(Qt5Gui_${_cmake_lib_name}_LIBRARY)
++            endif()
+ !!ENDIF
+             if (NOT Qt5Gui_${_cmake_lib_name}_LIBRARY)
+                 # The above find_library call doesn\'t work for finding
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0013-define-kiosurfacesuccess.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0013-define-kiosurfacesuccess.patch
new file mode 100644
index 000000000000..a43a46d8a69b
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/0013-define-kiosurfacesuccess.patch
@@ -0,0 +1,16 @@
+diff --git a/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.mm b/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.mm
+index a367487e..c3aeca1d 100644
+--- a/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.mm
++++ b/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.mm
+@@ -49,6 +49,11 @@
+ // but was only added in the 10.14 SDK, so declare it just in case.
+ extern "C" CFPropertyListRef CGColorSpaceCopyPropertyList(CGColorSpaceRef space);
+ 
++// Introduced in 10.13: http://codeworkshop.net/objc-diff/sdkdiffs/macos/10.13/IOSurface.html
++#if !defined(kIOSurfaceSuccess)
++#define kIOSurfaceSuccess KERN_SUCCESS
++#endif
++
+ QT_BEGIN_NAMESPACE
+ 
+ Q_LOGGING_CATEGORY(lcQpaIOSurface, "qt.qpa.backingstore.iosurface");
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/qtbase-sdk-10.12-mac.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/qtbase-sdk-10.12-mac.patch
new file mode 100644
index 000000000000..b2dff5aba8f6
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtbase.patch.d/qtbase-sdk-10.12-mac.patch
@@ -0,0 +1,77 @@
+diff --git a/mkspecs/common/macx.conf b/mkspecs/common/macx.conf
+--- a/mkspecs/common/macx.conf
++++ b/mkspecs/common/macx.conf
+@@ -10,7 +10,7 @@ QMAKE_APPLE_DEVICE_ARCHS = x86_64
+ 
+ # Should be 10.15, but as long as the CI builds with
+ # older SDKs we have to keep this.
+-QT_MAC_SDK_VERSION_MIN = 10.14
++QT_MAC_SDK_VERSION_MIN = 10.12
+ 
+ QT_MAC_SDK_VERSION_MAX = 10.15
+ 
+diff --git a/src/corelib/kernel/qcore_mac_objc.mm b/src/corelib/kernel/qcore_mac_objc.mm
+--- a/src/corelib/kernel/qcore_mac_objc.mm
++++ b/src/corelib/kernel/qcore_mac_objc.mm
+@@ -142,16 +142,10 @@ QMacAutoReleasePool::QMacAutoReleasePool()
+ 
+ #ifdef QT_DEBUG
+     void *poolFrame = nullptr;
+-    if (__builtin_available(macOS 10.14, iOS 12.0, tvOS 12.0, watchOS 5.0, *)) {
+-        void *frame;
+-        if (backtrace_from_fp(__builtin_frame_address(0), &frame, 1))
+-            poolFrame = frame;
+-    } else {
+         static const int maxFrames = 3;
+         void *callstack[maxFrames];
+         if (backtrace(callstack, maxFrames) == maxFrames)
+             poolFrame = callstack[maxFrames - 1];
+-    }
+ 
+     if (poolFrame) {
+         Dl_info info;
+diff --git a/src/gui/rhi/qrhi.cpp b/src/gui/rhi/qrhi.cpp
+--- a/src/gui/rhi/qrhi.cpp
++++ b/src/gui/rhi/qrhi.cpp
+@@ -4050,7 +4050,7 @@ QRhi *QRhi::create(Implementation impl, QRhiInitParams *params, Flags flags, QRh
+ #endif
+     case Metal:
+ //#ifdef Q_OS_DARWIN
+-#ifdef Q_OS_MACOS
++#if 0
+         r->d = new QRhiMetal(static_cast<QRhiMetalInitParams *>(params),
+                              static_cast<QRhiMetalNativeHandles *>(importDevice));
+         break;
+diff --git a/src/gui/rhi/rhi.pri b/src/gui/rhi/rhi.pri
+--- a/src/gui/rhi/rhi.pri
++++ b/src/gui/rhi/rhi.pri
+@@ -44,7 +44,7 @@ win32 {
+ }
+ 
+ # darwin {
+-macos {
++false {
+     HEADERS += \
+         rhi/qrhimetal_p.h \
+         rhi/qrhimetal_p_p.h
+diff --git a/src/plugins/platforms/cocoa/qcocoadrag.mm b/src/plugins/platforms/cocoa/qcocoadrag.mm
+--- a/src/plugins/platforms/cocoa/qcocoadrag.mm
++++ b/src/plugins/platforms/cocoa/qcocoadrag.mm
+@@ -134,7 +134,7 @@ Qt::DropAction QCocoaDrag::drag(QDrag *o)
+     NSImage *nsimage = qt_mac_create_nsimage(pm);
+     [nsimage setSize:NSSizeFromCGSize(pmDeviceIndependentSize.toCGSize())];
+ 
+-    QMacPasteboard dragBoard(CFStringRef(NSPasteboardNameDrag), QMacInternalPasteboardMime::MIME_DND);
++    QMacPasteboard dragBoard((CFStringRef) NSDragPboard, QMacInternalPasteboardMime::MIME_DND);
+     m_drag->mimeData()->setData(QLatin1String("application/x-qt-mime-type-name"), QByteArray("dummy"));
+     dragBoard.setMimeData(m_drag->mimeData(), QMacPasteboard::LazyRequest);
+ 
+@@ -145,7 +145,7 @@ Qt::DropAction QCocoaDrag::drag(QDrag *o)
+     CGFloat flippedY = pmDeviceIndependentSize.height() - hotSpot.y();
+     event_location.y -= flippedY;
+     NSSize mouseOffset_unused = NSMakeSize(0.0, 0.0);
+-    NSPasteboard *pboard = [NSPasteboard pasteboardWithName:NSPasteboardNameDrag];
++    NSPasteboard *pboard = [NSPasteboard pasteboardWithName:NSDragPboard];
+ 
+     [theWindow dragImage:nsimage
+         at:event_location
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtdeclarative.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtdeclarative.patch
new file mode 100644
index 000000000000..8f5b5d4790fb
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtdeclarative.patch
@@ -0,0 +1,33 @@
+diff --git a/src/qml/qml/qqmlimport.cpp b/src/qml/qml/qqmlimport.cpp
+index 005db4248..685c5b1b2 100644
+--- a/src/qml/qml/qqmlimport.cpp
++++ b/src/qml/qml/qqmlimport.cpp
+@@ -1760,6 +1760,15 @@ QQmlImportDatabase::QQmlImportDatabase(QQmlEngine *e)
+     QString installImportsPath =  QLibraryInfo::location(QLibraryInfo::Qml2ImportsPath);
+     addImportPath(installImportsPath);
+ 
++    // Add import paths derived from PATH
++    const QStringList paths = QFile::decodeName(qgetenv("PATH")).split(':');
++    const QString qmldir = QStringLiteral("../" NIXPKGS_QML2_IMPORT_PREFIX);
++    for (const QString &path: paths) {
++        if (!path.isEmpty()) {
++            addImportPath(QDir::cleanPath(path + QDir::separator() + qmldir));
++        }
++    }
++
+     // env import paths
+     if (Q_UNLIKELY(!qEnvironmentVariableIsEmpty("QML2_IMPORT_PATH"))) {
+         const QString envImportPath = qEnvironmentVariable("QML2_IMPORT_PATH");
+diff --git a/tools/qmlcachegen/qmlcache.prf b/tools/qmlcachegen/qmlcache.prf
+index 537eaf62e..e21de58f6 100644
+--- a/tools/qmlcachegen/qmlcache.prf
++++ b/tools/qmlcachegen/qmlcache.prf
+@@ -26,7 +26,7 @@ defineReplace(qmlCacheOutputFileName) {
+ }
+ 
+ qmlcacheinst.base = $$QMLCACHE_DESTDIR
+-qmlcacheinst.path = $$[QT_INSTALL_QML]/$$TARGETPATH
++qmlcacheinst.path = $$NIX_OUTPUT_QML/$$TARGETPATH
+ qmlcacheinst.CONFIG = no_check_exist
+ 
+ qmlcachegen.input = CACHEGEN_FILES
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtlocation-gcc-9.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtlocation-gcc-9.patch
new file mode 100644
index 000000000000..1791313e5603
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtlocation-gcc-9.patch
@@ -0,0 +1,21 @@
+diff --git a/src/3rdparty/mapbox-gl-native/platform/default/bidi.cpp b/src/3rdparty/mapbox-gl-native/platform/default/bidi.cpp
+index d475c38..c1710a6 100644
+--- a/src/3rdparty/mapbox-gl-native/platform/default/bidi.cpp
++++ b/src/3rdparty/mapbox-gl-native/platform/default/bidi.cpp
+@@ -5,6 +5,7 @@
+ #include <unicode/ushape.h>
+ 
+ #include <memory>
++#include <stdexcept>
+ 
+ namespace mbgl {
+ 
+diff --git a/src/3rdparty/mapbox-gl-native/src/mbgl/util/convert.cpp b/src/3rdparty/mapbox-gl-native/src/mbgl/util/convert.cpp
+index 97bfe91..56d3e17 100644
+--- a/src/3rdparty/mapbox-gl-native/src/mbgl/util/convert.cpp
++++ b/src/3rdparty/mapbox-gl-native/src/mbgl/util/convert.cpp
+@@ -1,3 +1,4 @@
++#include <cstdint>
+ #include <mbgl/util/convert.hpp>
+ 
+ namespace mbgl {
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtscript.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtscript.patch
new file mode 100644
index 000000000000..5508dec1280e
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtscript.patch
@@ -0,0 +1,13 @@
+diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/wtf/Threading.h b/src/3rdparty/javascriptcore/JavaScriptCore/wtf/Threading.h
+index 1f6d25e..087c3fb 100644
+--- a/src/3rdparty/javascriptcore/JavaScriptCore/wtf/Threading.h
++++ b/src/3rdparty/javascriptcore/JavaScriptCore/wtf/Threading.h
+@@ -81,7 +81,7 @@
+ #include <pthread.h>
+ #elif PLATFORM(GTK)
+ #include <wtf/gtk/GOwnPtr.h>
+-typedef struct _GMutex GMutex;
++typedef union _GMutex GMutex;
+ typedef struct _GCond GCond;
+ #endif
+ 
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtserialport.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtserialport.patch
new file mode 100644
index 000000000000..f25524e80bcf
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtserialport.patch
@@ -0,0 +1,22 @@
+diff --git a/src/serialport/qtudev_p.h b/src/serialport/qtudev_p.h
+index af2dab2..8e17f64 100644
+--- a/src/serialport/qtudev_p.h
++++ b/src/serialport/qtudev_p.h
+@@ -111,9 +111,17 @@ inline QFunctionPointer resolveSymbol(QLibrary *udevLibrary, const char *symbolN
+ inline bool resolveSymbols(QLibrary *udevLibrary)
+ {
+     if (!udevLibrary->isLoaded()) {
++#ifdef NIXPKGS_LIBUDEV
++        udevLibrary->setFileNameAndVersion(QLatin1String(NIXPKGS_LIBUDEV), 1);
++#else
+         udevLibrary->setFileNameAndVersion(QStringLiteral("udev"), 1);
++#endif
+         if (!udevLibrary->load()) {
++#ifdef NIXPKGS_LIBUDEV
++            udevLibrary->setFileNameAndVersion(QLatin1String(NIXPKGS_LIBUDEV), 0);
++#else
+             udevLibrary->setFileNameAndVersion(QStringLiteral("udev"), 0);
++#endif
+             if (!udevLibrary->load()) {
+                 qWarning("Failed to load the library: %s, supported version(s): %i and %i", qPrintable(udevLibrary->fileName()), 1, 0);
+                 return false;
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qttools.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qttools.patch
new file mode 100644
index 000000000000..8ae12198ca25
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qttools.patch
@@ -0,0 +1,15 @@
+--- a/src/macdeployqt/shared/shared.cpp
++++ b/src/macdeployqt/shared/shared.cpp
+@@ -1241,6 +1241,12 @@ bool deployQmlImports(const QString &appBundlePath, DeploymentInfo deploymentInf
+     if (!QFile(qmlImportScannerPath).exists())
+         qmlImportScannerPath = QCoreApplication::applicationDirPath() + "/qmlimportscanner";
+ 
++#ifdef NIXPKGS_QMLIMPORTSCANNER
++    // Fallback: Nixpkgs hardcoded path
++    if (!QFile(qmlImportScannerPath).exists())
++        qmlImportScannerPath = NIXPKGS_QMLIMPORTSCANNER;
++#endif
++
+     // Verify that we found a qmlimportscanner binary
+     if (!QFile(qmlImportScannerPath).exists()) {
+         LogError() << "qmlimportscanner not found at" << qmlImportScannerPath;
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwayland-libdrm-build.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwayland-libdrm-build.patch
new file mode 100644
index 000000000000..fb3d6327e45b
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwayland-libdrm-build.patch
@@ -0,0 +1,56 @@
+commit 7217ea9cf297e664be876eb82b66a1b4f157ca80
+Author: Peter Seiderer <ps.report@gmx.net>
+Date:   Fri Apr 3 21:52:30 2020 +0200
+
+    fix libdrm related configure test failure
+    
+    Fixes:
+    
+      Project ERROR: Test config.qtwayland_client.tests.dmabuf-server-buffer tries to use undeclared library 'drm'
+      Project ERROR: Test config.qtwayland_compositor.tests.dmabuf-server-buffer tries to use undeclared library 'drm'
+      Project ERROR: Test config.qtwayland_compositor.tests.dmabuf-client-buffer tries to use undeclared library 'drm'
+    
+    Task-number: QTBUG-83303
+    Change-Id: I3970f4e3855fcfa760493631a14adb6a16950aa9
+    Reviewed-by: Ville Voutilainen <ville.voutilainen@qt.io>
+    Reviewed-by: Heikki Halmet <heikki.halmet@qt.io>
+    Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
+    (cherry picked from commit ca63fe81df8ac910f43539719566ed6745700c2b)
+    (cherry picked from commit 1344ca6b5a8fbc1b28727feea6d856af8bf3bc93)
+
+diff --git a/src/client/configure.json b/src/client/configure.json
+index 06213968..27c73f89 100644
+--- a/src/client/configure.json
++++ b/src/client/configure.json
+@@ -74,7 +74,8 @@
+             "label": "Linux dma-buf Buffer Sharing",
+             "type": "compile",
+             "test": "dmabuf_server_buffer",
+-            "use": "egl drm"
++            "libs": "-ldrm",
++            "use": "egl"
+         },
+         "vulkan-server-buffer": {
+             "label": "Vulkan Buffer Sharing",
+diff --git a/src/compositor/configure.json b/src/compositor/configure.json
+index 0dbb3364..73e4c1a8 100644
+--- a/src/compositor/configure.json
++++ b/src/compositor/configure.json
+@@ -80,13 +80,15 @@
+             "label": "Linux dma-buf Buffer Sharing",
+             "type": "compile",
+             "test": "dmabuf_server_buffer",
+-            "use": "egl drm"
++            "libs": "-ldrm",
++            "use": "egl"
+         },
+         "dmabuf-client-buffer": {
+             "label": "Linux Client dma-buf Buffer Sharing",
+             "type": "compile",
+             "test": "dmabuf_client_buffer",
+-            "use": "egl drm"
++            "libs": "-ldrm",
++            "use": "egl"
+         },
+         "vulkan-server-buffer": {
+             "label": "Vulkan Buffer Sharing",
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwebengine-darwin-no-platform-check.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwebengine-darwin-no-platform-check.patch
new file mode 100644
index 000000000000..546e753144d0
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwebengine-darwin-no-platform-check.patch
@@ -0,0 +1,33 @@
+diff --git a/mkspecs/features/platform.prf b/mkspecs/features/platform.prf
+--- a/mkspecs/features/platform.prf
++++ b/mkspecs/features/platform.prf
+@@ -40,8 +40,6 @@ defineTest(isPlatformSupported) {
+   } else:osx {
+     # FIXME: Try to get it back down to 8.2 for building on OS X 10.11
+     !isMinXcodeVersion(8, 3, 3) {
+-      skipBuild("Using Xcode version $$QMAKE_XCODE_VERSION, but at least version 8.3.3 is required to build Qt WebEngine.")
+-      return(false)
+     }
+     !clang|intel_icc {
+         skipBuild("Qt WebEngine on macOS requires Clang.")
+@@ -54,8 +52,6 @@ defineTest(isPlatformSupported) {
+       return(false)
+     }
+     !isMinOSXSDKVersion(10, 12): {
+-      skipBuild("Building Qt WebEngine requires a macOS SDK version of 10.12 or newer. Current version is $${WEBENGINE_OSX_SDK_PRODUCT_VERSION}.")
+-      return(false)
+     }
+   } else {
+     skipBuild("Unknown platform. Qt WebEngine only supports Linux, Windows, and macOS.")
+diff --git a/src/core/config/mac_osx.pri b/src/core/config/mac_osx.pri
+--- a/src/core/config/mac_osx.pri
++++ b/src/core/config/mac_osx.pri
+@@ -5,8 +5,6 @@ load(functions)
+ # otherwise query for it.
+ QMAKE_MAC_SDK_VERSION = $$eval(QMAKE_MAC_SDK.$${QMAKE_MAC_SDK}.SDKVersion)
+ isEmpty(QMAKE_MAC_SDK_VERSION) {
+-     QMAKE_MAC_SDK_VERSION = $$system("/usr/bin/xcodebuild -sdk $${QMAKE_MAC_SDK} -version SDKVersion 2>/dev/null")
+-     isEmpty(QMAKE_MAC_SDK_VERSION): error("Could not resolve SDK version for \'$${QMAKE_MAC_SDK}\'")
+ }
+
+ QMAKE_CLANG_DIR = "/usr"
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwebkit-darwin-no-qos-classes.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwebkit-darwin-no-qos-classes.patch
new file mode 100644
index 000000000000..a7087f517623
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwebkit-darwin-no-qos-classes.patch
@@ -0,0 +1,11 @@
+diff --git a/Source/cmake/OptionsQt.cmake b/Source/cmake/OptionsQt.cmake
+--- a/Source/cmake/OptionsQt.cmake
++++ b/Source/cmake/OptionsQt.cmake
+@@ -683,7 +683,6 @@ if (WIN32 AND COMPILER_IS_GCC_OR_CLANG)
+ endif ()
+ 
+ if (APPLE)
+-    SET_AND_EXPOSE_TO_BUILD(HAVE_QOS_CLASSES 1)
+ endif ()
+ 
+ if (ENABLE_MATHML)
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwebkit-darwin-no-readline.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwebkit-darwin-no-readline.patch
new file mode 100644
index 000000000000..4871032f6f2c
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwebkit-darwin-no-readline.patch
@@ -0,0 +1,30 @@
+diff --git a/Source/JavaScriptCore/shell/CMakeLists.txt b/Source/JavaScriptCore/shell/CMakeLists.txt
+--- a/Source/JavaScriptCore/shell/CMakeLists.txt
++++ b/Source/JavaScriptCore/shell/CMakeLists.txt
+@@ -9,7 +9,6 @@ set(JSC_LIBRARIES
+ )
+ 
+ if (WTF_OS_MAC_OS_X)
+-    list(APPEND JSC_LIBRARIES edit)
+ endif ()
+ 
+ if ("${JavaScriptCore_LIBRARY_TYPE}" MATCHES "STATIC")
+diff --git a/Source/WTF/wtf/Platform.h b/Source/WTF/wtf/Platform.h
+--- a/Source/WTF/wtf/Platform.h
++++ b/Source/WTF/wtf/Platform.h
+@@ -563,7 +563,6 @@
+ #if PLATFORM(IOS)
+ 
+ #define HAVE_NETWORK_EXTENSION 1
+-#define HAVE_READLINE 1
+ #if USE(APPLE_INTERNAL_SDK)
+ #define USE_CFNETWORK 1
+ #endif
+@@ -650,7 +649,6 @@
+ #define HAVE_MADV_DONTNEED 1
+ #define HAVE_MERGESORT 1
+ #define HAVE_PTHREAD_SETNAME_NP 1
+-#define HAVE_READLINE 1
+ #define HAVE_SYS_TIMEB_H 1
+ 
+ #if !PLATFORM(GTK) && !PLATFORM(QT)
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwebkit-icu68.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwebkit-icu68.patch
new file mode 100644
index 000000000000..73463d7567a3
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwebkit-icu68.patch
@@ -0,0 +1,170 @@
+Regressed by https://github.com/unicode-org/icu/commit/c3fe7e09d844
+
+In file included from Source/WebCore/platform/text/TextAllInOne.cpp:31:
+Source/WebCore/platform/text/TextCodecICU.cpp:311:42: error: use of undeclared identifier 'TRUE'
+        ucnv_setFallback(m_converterICU, TRUE);
+                                         ^
+In file included from Source/WebCore/platform/text/TextAllInOne.cpp:40:
+In file included from Source/WebCore/platform/text/icu/UTextProvider.cpp:27:
+Source/WebCore/platform/text/icu/UTextProvider.h:83:28: error: use of undeclared identifier 'TRUE'
+            isAccessible = TRUE;
+                           ^
+Source/WebCore/platform/text/icu/UTextProvider.h:88:28: error: use of undeclared identifier 'FALSE'
+            isAccessible = FALSE;
+                           ^
+Source/WebCore/platform/text/icu/UTextProvider.h:97:28: error: use of undeclared identifier 'TRUE'
+            isAccessible = TRUE;
+                           ^
+Source/WebCore/platform/text/icu/UTextProvider.h:102:28: error: use of undeclared identifier 'FALSE'
+            isAccessible = FALSE;
+                           ^
+In file included from Source/WebCore/platform/text/TextAllInOne.cpp:41:
+Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp:103:20: error: use of undeclared identifier 'TRUE'
+            return TRUE;
+                   ^
+Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp:108:20: error: use of undeclared identifier 'FALSE'
+            return FALSE;
+                   ^
+Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp:114:20: error: use of undeclared identifier 'TRUE'
+            return TRUE;
+                   ^
+Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp:119:20: error: use of undeclared identifier 'FALSE'
+            return FALSE;
+                   ^
+Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp:147:12: error: use of undeclared identifier 'TRUE'
+    return TRUE;
+           ^
+Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp:339:16: error: use of undeclared identifier 'FALSE'
+        return FALSE;
+               ^
+Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp:359:12: error: use of undeclared identifier 'TRUE'
+    return TRUE;
+           ^
+In file included from Source/WebCore/platform/text/TextAllInOne.cpp:42:
+Source/WebCore/platform/text/icu/UTextProviderUTF16.cpp:128:16: error: use of undeclared identifier 'FALSE'
+        return FALSE;
+               ^
+Source/WebCore/platform/text/icu/UTextProviderUTF16.cpp:148:12: error: use of undeclared identifier 'TRUE'
+    return TRUE;
+           ^
+
+--- a/Source/WebCore/platform/text/TextCodecICU.cpp
++++ b/Source/WebCore/platform/text/TextCodecICU.cpp
+@@ -308,7 +308,7 @@ void TextCodecICU::createICUConverter() const
+     m_converterICU = ucnv_open(m_canonicalConverterName, &err);
+     ASSERT(U_SUCCESS(err));
+     if (m_converterICU)
+-        ucnv_setFallback(m_converterICU, TRUE);
++        ucnv_setFallback(m_converterICU, true);
+ }
+ 
+ int TextCodecICU::decodeToBuffer(UChar* target, UChar* targetLimit, const char*& source, const char* sourceLimit, int32_t* offsets, bool flush, UErrorCode& err)
+--- a/Source/WebCore/platform/text/icu/UTextProvider.h
++++ b/Source/WebCore/platform/text/icu/UTextProvider.h
+@@ -80,12 +80,12 @@ inline bool uTextAccessInChunkOrOutOfRange(UText* text
+             // Ensure chunk offset is well formed if computed offset exceeds int32_t range.
+             ASSERT(offset < std::numeric_limits<int32_t>::max());
+             text->chunkOffset = offset < std::numeric_limits<int32_t>::max() ? static_cast<int32_t>(offset) : 0;
+-            isAccessible = TRUE;
++            isAccessible = true;
+             return true;
+         }
+         if (nativeIndex >= nativeLength && text->chunkNativeLimit == nativeLength) {
+             text->chunkOffset = text->chunkLength;
+-            isAccessible = FALSE;
++            isAccessible = false;
+             return true;
+         }
+     } else {
+@@ -94,12 +94,12 @@ inline bool uTextAccessInChunkOrOutOfRange(UText* text
+             // Ensure chunk offset is well formed if computed offset exceeds int32_t range.
+             ASSERT(offset < std::numeric_limits<int32_t>::max());
+             text->chunkOffset = offset < std::numeric_limits<int32_t>::max() ? static_cast<int32_t>(offset) : 0;
+-            isAccessible = TRUE;
++            isAccessible = true;
+             return true;
+         }
+         if (nativeIndex <= 0 && !text->chunkNativeStart) {
+             text->chunkOffset = 0;
+-            isAccessible = FALSE;
++            isAccessible = false;
+             return true;
+         }
+     }
+--- a/Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp
++++ b/Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp
+@@ -100,23 +100,23 @@ static UBool uTextLatin1Access(UText* uText, int64_t i
+         if (index < uText->chunkNativeLimit && index >= uText->chunkNativeStart) {
+             // Already inside the buffer. Set the new offset.
+             uText->chunkOffset = static_cast<int32_t>(index - uText->chunkNativeStart);
+-            return TRUE;
++            return true;
+         }
+         if (index >= length && uText->chunkNativeLimit == length) {
+             // Off the end of the buffer, but we can't get it.
+             uText->chunkOffset = static_cast<int32_t>(index - uText->chunkNativeStart);
+-            return FALSE;
++            return false;
+         }
+     } else {
+         if (index <= uText->chunkNativeLimit && index > uText->chunkNativeStart) {
+             // Already inside the buffer. Set the new offset.
+             uText->chunkOffset = static_cast<int32_t>(index - uText->chunkNativeStart);
+-            return TRUE;
++            return true;
+         }
+         if (!index && !uText->chunkNativeStart) {
+             // Already at the beginning; can't go any farther.
+             uText->chunkOffset = 0;
+-            return FALSE;
++            return false;
+         }
+     }
+     
+@@ -144,7 +144,7 @@ static UBool uTextLatin1Access(UText* uText, int64_t i
+ 
+     uText->nativeIndexingLimit = uText->chunkLength;
+ 
+-    return TRUE;
++    return true;
+ }
+ 
+ static int32_t uTextLatin1Extract(UText* uText, int64_t start, int64_t limit, UChar* dest, int32_t destCapacity, UErrorCode* status)
+@@ -336,7 +336,7 @@ static int64_t uTextLatin1ContextAwareNativeLength(UTe
+ static UBool uTextLatin1ContextAwareAccess(UText* text, int64_t nativeIndex, UBool forward)
+ {
+     if (!text->context)
+-        return FALSE;
++        return false;
+     int64_t nativeLength = uTextLatin1ContextAwareNativeLength(text);
+     UBool isAccessible;
+     if (uTextAccessInChunkOrOutOfRange(text, nativeIndex, nativeLength, forward, isAccessible))
+@@ -356,7 +356,7 @@ static UBool uTextLatin1ContextAwareAccess(UText* text
+         ASSERT(newContext == UTextProviderContext::PriorContext);
+         textLatin1ContextAwareSwitchToPriorContext(text, nativeIndex, nativeLength, forward);
+     }
+-    return TRUE;
++    return true;
+ }
+ 
+ static int32_t uTextLatin1ContextAwareExtract(UText*, int64_t, int64_t, UChar*, int32_t, UErrorCode* errorCode)
+--- a/Source/WebCore/platform/text/icu/UTextProviderUTF16.cpp
++++ b/Source/WebCore/platform/text/icu/UTextProviderUTF16.cpp
+@@ -125,7 +125,7 @@ static inline int64_t uTextUTF16ContextAwareNativeLeng
+ static UBool uTextUTF16ContextAwareAccess(UText* text, int64_t nativeIndex, UBool forward)
+ {
+     if (!text->context)
+-        return FALSE;
++        return false;
+     int64_t nativeLength = uTextUTF16ContextAwareNativeLength(text);
+     UBool isAccessible;
+     if (uTextAccessInChunkOrOutOfRange(text, nativeIndex, nativeLength, forward, isAccessible))
+@@ -145,7 +145,7 @@ static UBool uTextUTF16ContextAwareAccess(UText* text,
+         ASSERT(newContext == UTextProviderContext::PriorContext);
+         textUTF16ContextAwareSwitchToPriorContext(text, nativeIndex, nativeLength, forward);
+     }
+-    return TRUE;
++    return true;
+ }
+ 
+ static int32_t uTextUTF16ContextAwareExtract(UText*, int64_t, int64_t, UChar*, int32_t, UErrorCode* errorCode)
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwebkit.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwebkit.patch
new file mode 100644
index 000000000000..b94a4b76cbab
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/qtwebkit.patch
@@ -0,0 +1,12 @@
+diff --git a/Source/WebKit2/PlatformQt.cmake b/Source/WebKit2/PlatformQt.cmake
+--- a/Source/WebKit2/PlatformQt.cmake
++++ b/Source/WebKit2/PlatformQt.cmake
+@@ -261,6 +261,7 @@
+ list(APPEND WebKit2_SYSTEM_INCLUDE_DIRECTORIES
+     ${GLIB_INCLUDE_DIRS}
+     ${GSTREAMER_INCLUDE_DIRS}
++    ${GSTREAMER_PBUTILS_INCLUDE_DIRS}
+     ${Qt5Quick_INCLUDE_DIRS}
+     ${Qt5Quick_PRIVATE_INCLUDE_DIRS}
+     ${SQLITE_INCLUDE_DIR}
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.14/srcs.nix b/nixpkgs/pkgs/development/libraries/qt-5/5.14/srcs.nix
new file mode 100644
index 000000000000..b5b6eb1a32c6
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.14/srcs.nix
@@ -0,0 +1,342 @@
+# DO NOT EDIT! This file is generated automatically.
+# Command: ./maintainers/scripts/fetch-kde-qt.sh pkgs/development/libraries/qt-5/5.14
+{ fetchurl, mirror }:
+
+{
+  qt3d = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qt3d-everywhere-src-5.14.2.tar.xz";
+      sha256 = "9da82f1cc4b7d416d31ec96224c59d221473a48f6e579eef978f7d2e3932c674";
+      name = "qt3d-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtactiveqt = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtactiveqt-everywhere-src-5.14.2.tar.xz";
+      sha256 = "b53517d5d128719773a2941ba52da10acd7aa3149948862bc08c98f5b64152a9";
+      name = "qtactiveqt-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtandroidextras = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtandroidextras-everywhere-src-5.14.2.tar.xz";
+      sha256 = "4a8fd92b5c49a663cf0bd492804eaf1574d11137e2cbdd41d6bf5fad0c3c4d76";
+      name = "qtandroidextras-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtbase = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtbase-everywhere-src-5.14.2.tar.xz";
+      sha256 = "48b9e79220941665a9dd827548c6428f7aa3052ccba8f4f7e039a94aa1d2b28a";
+      name = "qtbase-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtcharts = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtcharts-everywhere-src-5.14.2.tar.xz";
+      sha256 = "adb25203ea748d886cc3d8993c20def702115eccea311594592058134ba83bb7";
+      name = "qtcharts-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtconnectivity = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtconnectivity-everywhere-src-5.14.2.tar.xz";
+      sha256 = "abe67b3e3a775e2a2e27c62a5391f37007ffbe72bce58b96116995616cfcbc28";
+      name = "qtconnectivity-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtdatavis3d = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtdatavis3d-everywhere-src-5.14.2.tar.xz";
+      sha256 = "723c03db2d2805b1be4ca534ac7bc867a1a21894d33a7e9261a382f3fa9d0e20";
+      name = "qtdatavis3d-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtdeclarative = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtdeclarative-everywhere-src-5.14.2.tar.xz";
+      sha256 = "a3c4617adc9760347c93d2eb6c25d22f620cd22f44afa0494eb499a805831650";
+      name = "qtdeclarative-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtdoc = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtdoc-everywhere-src-5.14.2.tar.xz";
+      sha256 = "5a55cdb55af35eb222d06179567851c175f24a3732f7dee5be073df4a893172b";
+      name = "qtdoc-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtgamepad = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtgamepad-everywhere-src-5.14.2.tar.xz";
+      sha256 = "f77daadb4755cf760e11812264259fb103396fd1b06df1e06b5df162081c8d03";
+      name = "qtgamepad-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtgraphicaleffects = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtgraphicaleffects-everywhere-src-5.14.2.tar.xz";
+      sha256 = "487a7f858244a08264363733055a8cf8b00e77c658c5608cc462817d15e4b50f";
+      name = "qtgraphicaleffects-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtimageformats = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtimageformats-everywhere-src-5.14.2.tar.xz";
+      sha256 = "733eca0165c15e046b106039c989dac7f6bc2ecf215396d965ed065369264f8c";
+      name = "qtimageformats-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtlocation = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtlocation-everywhere-src-5.14.2.tar.xz";
+      sha256 = "c37708bc396f6dac397b49a6a268d5edb39e1c8296ca2337ce9e80bde04775cc";
+      name = "qtlocation-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtlottie = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtlottie-everywhere-src-5.14.2.tar.xz";
+      sha256 = "55d1392dc92cbec11263084360075dc5fc3fdc25c1969adfbdec84299b285978";
+      name = "qtlottie-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtmacextras = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtmacextras-everywhere-src-5.14.2.tar.xz";
+      sha256 = "d12587b46c84a7822194fc3ccf46f7c18ff3b31566d3dde4f5fe772f1d8776e5";
+      name = "qtmacextras-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtmultimedia = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtmultimedia-everywhere-src-5.14.2.tar.xz";
+      sha256 = "7acd8ede6835314206e407b35b668f0add67544577fb51fe67afb03137fb9fe9";
+      name = "qtmultimedia-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtnetworkauth = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtnetworkauth-everywhere-src-5.14.2.tar.xz";
+      sha256 = "4f00513dd18598487d02187b80b54c669662cf8a8f2573858c7f9282d7b9265e";
+      name = "qtnetworkauth-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtpurchasing = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtpurchasing-everywhere-src-5.14.2.tar.xz";
+      sha256 = "69b087001e8fcec5bb49ca333d5f44e6b7eb09f76421dc792fc9cd76dee9e851";
+      name = "qtpurchasing-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtquick3d = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtquick3d-everywhere-src-5.14.2.tar.xz";
+      sha256 = "0640696d501f2b0bf57f64e98f30bfa3e1cc19c11c0e05e43d4fdb0d20488b2e";
+      name = "qtquick3d-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtquickcontrols = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtquickcontrols-everywhere-src-5.14.2.tar.xz";
+      sha256 = "d55def1dd4ee1250bd6a4e76849f4e362368b6411c2216d5f669c761216d4461";
+      name = "qtquickcontrols-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtquickcontrols2 = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtquickcontrols2-everywhere-src-5.14.2.tar.xz";
+      sha256 = "faf7d349d8f4a8db36cd3c62a5724bcf689300f2fdb7dc1ea034392aab981560";
+      name = "qtquickcontrols2-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtquicktimeline = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtquicktimeline-everywhere-src-5.14.2.tar.xz";
+      sha256 = "83a45d0998cbc77f8094854a477ab1ac0838ae7fd822563d995df40149893a9e";
+      name = "qtquicktimeline-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtremoteobjects = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtremoteobjects-everywhere-src-5.14.2.tar.xz";
+      sha256 = "a6a601c4f4aab6fe41a462dae57033819f697e3317240a382cee45c08be614d6";
+      name = "qtremoteobjects-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtscript = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtscript-everywhere-src-5.14.2.tar.xz";
+      sha256 = "e9fd487ccb3cbf00e86b0b803aa79e9f6bbe7a337b8e97d069e040c3e0789bfe";
+      name = "qtscript-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtscxml = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtscxml-everywhere-src-5.14.2.tar.xz";
+      sha256 = "030cea352a56074f577200f967ef37c959b2767127de61f766f59b0d99763790";
+      name = "qtscxml-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtsensors = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtsensors-everywhere-src-5.14.2.tar.xz";
+      sha256 = "bccfca6910b0383d8f65823496ff5011abed2fa8fd446b4b27333d0fd7bb8c61";
+      name = "qtsensors-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtserialbus = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtserialbus-everywhere-src-5.14.2.tar.xz";
+      sha256 = "0b7762175a649a40c4dd619c5de61d772235dc86099343278e2c3229d0836a91";
+      name = "qtserialbus-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtserialport = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtserialport-everywhere-src-5.14.2.tar.xz";
+      sha256 = "a6d977dd723ad4d3368b5163691405b8852f809974a96ec54103494e834aea21";
+      name = "qtserialport-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtspeech = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtspeech-everywhere-src-5.14.2.tar.xz";
+      sha256 = "5e9e8ea62f0207ba894df1e136df0af9fc5443c7817d28c39f0ea2bbae9ec6da";
+      name = "qtspeech-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtsvg = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtsvg-everywhere-src-5.14.2.tar.xz";
+      sha256 = "c7d7faa01a3e7a6e4d38fafcec5529a488258218749779e6fa0e09a21173b5a1";
+      name = "qtsvg-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qttools = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qttools-everywhere-src-5.14.2.tar.xz";
+      sha256 = "5bb0cf7832b88eb6bc9d4289f98307eb14b16a453ad6cf42cca13c4fe1a053c5";
+      name = "qttools-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qttranslations = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qttranslations-everywhere-src-5.14.2.tar.xz";
+      sha256 = "2088ebee9f5dd0336c9fd11436899a95b7ce0141ce072290de1e8f315d82d1a6";
+      name = "qttranslations-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtvirtualkeyboard = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtvirtualkeyboard-everywhere-src-5.14.2.tar.xz";
+      sha256 = "364f3338563e617e7c964a37170b415b546c5f82965e781271f9dada3e3868d7";
+      name = "qtvirtualkeyboard-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtwayland = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtwayland-everywhere-src-5.14.2.tar.xz";
+      sha256 = "d31633ca718fb407cf70870613d45d0ed80aa04c058586ac3036bae1aff7832a";
+      name = "qtwayland-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtwebchannel = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtwebchannel-everywhere-src-5.14.2.tar.xz";
+      sha256 = "7d1dc8441523638c3d455c7d408ec65aebc073acab80e24063865f929231f874";
+      name = "qtwebchannel-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtwebengine = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtwebengine-everywhere-src-5.14.2.tar.xz";
+      sha256 = "e169d6a75d8c397e04f843bc1b9585950fb9a001255cd18d6293f66fa8a6c947";
+      name = "qtwebengine-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtwebglplugin = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtwebglplugin-everywhere-src-5.14.2.tar.xz";
+      sha256 = "eb4118910b65d03d8448658ac1646e860d337e59b82d6575beda21824e313417";
+      name = "qtwebglplugin-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtwebsockets = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtwebsockets-everywhere-src-5.14.2.tar.xz";
+      sha256 = "f06e62b18313fe1b40a35566e79645de4a8e7ac9f7717d1d98a06c5b49afca84";
+      name = "qtwebsockets-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtwebview = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtwebview-everywhere-src-5.14.2.tar.xz";
+      sha256 = "c61f9213ee84fd7408898c0194468208ffb51af9d257e87e6b53daf24f65ff4b";
+      name = "qtwebview-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtwinextras = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtwinextras-everywhere-src-5.14.2.tar.xz";
+      sha256 = "980f1bc31b37c8597c0bac55f69ecf00d1677218ce82f7bc3933236cb6d907f2";
+      name = "qtwinextras-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtx11extras = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtx11extras-everywhere-src-5.14.2.tar.xz";
+      sha256 = "be9a84a03a2ee81771215264e5dff7a996d04be6192b8cdaa1d41e319a81545a";
+      name = "qtx11extras-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+  qtxmlpatterns = {
+    version = "5.14.2";
+    src = fetchurl {
+      url = "${mirror}/archive/qt/5.14/5.14.2/submodules/qtxmlpatterns-everywhere-src-5.14.2.tar.xz";
+      sha256 = "219a876665345e3801baff71f31f30f5495c1cb9ab23fbbd27602632c80fcfb7";
+      name = "qtxmlpatterns-everywhere-src-5.14.2.tar.xz";
+    };
+  };
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/default.nix b/nixpkgs/pkgs/development/libraries/qt-5/5.15/default.nix
new file mode 100644
index 000000000000..7c4845fd84a6
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/default.nix
@@ -0,0 +1,197 @@
+/*
+
+# Updates
+
+Run `./fetch.sh` to update package sources from Git.
+Check for any minor version changes.
+
+*/
+
+{ newScope
+, lib, stdenv, fetchurl, fetchgit, fetchpatch, fetchFromGitHub, makeSetupHook, makeWrapper
+, bison, cups ? null, harfbuzz, libGL, perl
+, gstreamer, gst-plugins-base, gtk3, dconf
+, darwin
+
+  # options
+, developerBuild ? false
+, decryptSslTraffic ? false
+, debug ? false
+}:
+
+let
+
+  srcs = import ./srcs.nix { inherit lib fetchgit fetchFromGitHub; };
+
+  qtCompatVersion = srcs.qtbase.version;
+
+  patches = {
+    qtbase = lib.optionals stdenv.isDarwin [
+      ./qtbase.patch.d/0001-qtbase-mkspecs-mac.patch
+
+      # Downgrade minimal required SDK to 10.12
+      ./qtbase.patch.d/0013-define-kiosurfacesuccess.patch
+      ./qtbase.patch.d/macos-sdk-10.12/0001-Revert-QCocoaDrag-set-image-only-on-the-first-drag-i.patch
+      ./qtbase.patch.d/macos-sdk-10.12/0002-Revert-QCocoaDrag-drag-make-sure-clipboard-is-ours-a.patch
+      ./qtbase.patch.d/macos-sdk-10.12/0003-Revert-QCocoaDrag-maybeDragMultipleItems-fix-erroneo.patch
+      ./qtbase.patch.d/macos-sdk-10.12/0004-Revert-QCocoaDrag-avoid-using-the-deprecated-API-if-.patch
+      ./qtbase.patch.d/macos-sdk-10.12/0005-Revert-macOS-Fix-use-of-deprecated-NSOffState.patch
+      ./qtbase.patch.d/macos-sdk-10.12/0006-git-checkout-v5.15.0-src-plugins-platforms-cocoa-qco.patch
+      ./qtbase.patch.d/qtbase-sdk-10.12-mac.patch
+
+      # Patch framework detection to support X.framework/X.tbd,
+      # extending the current support for X.framework/X.
+      ./qtbase.patch.d/0012-qtbase-tbd-frameworks.patch
+    ] ++ [
+      ./qtbase.patch.d/0003-qtbase-mkspecs.patch
+      ./qtbase.patch.d/0004-qtbase-replace-libdir.patch
+      ./qtbase.patch.d/0005-qtbase-cmake.patch
+      ./qtbase.patch.d/0006-qtbase-gtk3.patch
+      ./qtbase.patch.d/0007-qtbase-xcursor.patch
+      ./qtbase.patch.d/0008-qtbase-tzdir.patch
+      ./qtbase.patch.d/0009-qtbase-qtpluginpath.patch
+      ./qtbase.patch.d/0010-qtbase-assert.patch
+      ./qtbase.patch.d/0011-fix-header_module.patch
+    ];
+    qtdeclarative = [ ./qtdeclarative.patch ];
+    qtscript = [ ./qtscript.patch ];
+    qtserialport = [ ./qtserialport.patch ];
+    qtwebengine = lib.optionals stdenv.isDarwin [
+      ./qtwebengine-darwin-no-platform-check.patch
+      ./qtwebengine-mac-dont-set-dsymutil-path.patch
+    ];
+    qtwebkit = [
+      (fetchpatch {
+        name = "qtwebkit-bison-3.7-build.patch";
+        url = "https://github.com/qtwebkit/qtwebkit/commit/d92b11fea65364fefa700249bd3340e0cd4c5b31.patch";
+        sha256 = "0h8ymfnwgkjkwaankr3iifiscsvngqpwb91yygndx344qdiw9y0n";
+      })
+      (fetchpatch {
+        name = "qtwebkit-glib-2.68.patch";
+        url = "https://github.com/qtwebkit/qtwebkit/pull/1058/commits/5b698ba3faffd4e198a45be9fe74f53307395e4b.patch";
+        sha256 = "0a3xv0h4lv8wggckgy8cg8xnpkg7n9h45312pdjdnnwy87xvzss0";
+      })
+      ./qtwebkit.patch
+      ./qtwebkit-icu68.patch
+    ] ++ lib.optionals stdenv.isDarwin [
+      ./qtwebkit-darwin-no-readline.patch
+      ./qtwebkit-darwin-no-qos-classes.patch
+    ];
+    qttools = [ ./qttools.patch ];
+  };
+
+  qtModule =
+    import ../qtModule.nix
+    {
+      inherit perl;
+      inherit lib;
+      # Use a variant of mkDerivation that does not include wrapQtApplications
+      # to avoid cyclic dependencies between Qt modules.
+      mkDerivation =
+        import ../mkDerivation.nix
+        { inherit lib; inherit debug; wrapQtAppsHook = null; }
+        stdenv.mkDerivation;
+    }
+    { inherit self srcs patches; };
+
+  addPackages = self: with self;
+    let
+      callPackage = self.newScope { inherit qtCompatVersion qtModule srcs; };
+    in {
+
+      inherit callPackage qtCompatVersion qtModule srcs;
+
+      mkDerivationWith =
+        import ../mkDerivation.nix
+        { inherit lib; inherit debug; inherit (self) wrapQtAppsHook; };
+
+      mkDerivation = mkDerivationWith stdenv.mkDerivation;
+
+      qtbase = callPackage ../modules/qtbase.nix {
+        inherit (srcs.qtbase) src version;
+        patches = patches.qtbase;
+        inherit bison cups harfbuzz libGL;
+        withGtk3 = true; inherit dconf gtk3;
+        inherit developerBuild decryptSslTraffic;
+        inherit (darwin.apple_sdk.frameworks) AGL AppKit ApplicationServices Carbon Cocoa CoreAudio CoreBluetooth
+          CoreLocation CoreServices DiskArbitration Foundation OpenGL MetalKit IOKit;
+        inherit (darwin) libobjc;
+      };
+
+      qt3d = callPackage ../modules/qt3d.nix {};
+      qtcharts = callPackage ../modules/qtcharts.nix {};
+      qtconnectivity = callPackage ../modules/qtconnectivity.nix {};
+      qtdeclarative = callPackage ../modules/qtdeclarative.nix {};
+      qtdoc = callPackage ../modules/qtdoc.nix {};
+      qtgamepad = callPackage ../modules/qtgamepad.nix {
+        inherit (darwin.apple_sdk.frameworks) GameController;
+      };
+      qtgraphicaleffects = callPackage ../modules/qtgraphicaleffects.nix {};
+      qtimageformats = callPackage ../modules/qtimageformats.nix {};
+      qtlocation = callPackage ../modules/qtlocation.nix {};
+      qtmacextras = callPackage ../modules/qtmacextras.nix {};
+      qtmultimedia = callPackage ../modules/qtmultimedia.nix {
+        inherit gstreamer gst-plugins-base;
+      };
+      qtnetworkauth = callPackage ../modules/qtnetworkauth.nix {};
+      qtquick1 = null;
+      qtquickcontrols = callPackage ../modules/qtquickcontrols.nix {};
+      qtquickcontrols2 = callPackage ../modules/qtquickcontrols2.nix {};
+      qtscript = callPackage ../modules/qtscript.nix {};
+      qtsensors = callPackage ../modules/qtsensors.nix {};
+      qtserialbus = callPackage ../modules/qtserialbus.nix {};
+      qtserialport = callPackage ../modules/qtserialport.nix {};
+      qtspeech = callPackage ../modules/qtspeech.nix {};
+      qtsvg = callPackage ../modules/qtsvg.nix {};
+      qtscxml = callPackage ../modules/qtscxml.nix {};
+      qttools = callPackage ../modules/qttools.nix {};
+      qttranslations = callPackage ../modules/qttranslations.nix {};
+      qtvirtualkeyboard = callPackage ../modules/qtvirtualkeyboard.nix {};
+      qtwayland = callPackage ../modules/qtwayland.nix {};
+      qtwebchannel = callPackage ../modules/qtwebchannel.nix {};
+      qtwebengine = callPackage ../modules/qtwebengine.nix {
+        inherit (srcs.qtwebengine) version;
+        inherit (darwin) cctools libobjc libunwind xnu;
+        inherit (darwin.apple_sdk.libs) sandbox;
+        inherit (darwin.apple_sdk.frameworks) ApplicationServices AVFoundation Foundation ForceFeedback GameController AppKit
+          ImageCaptureCore CoreBluetooth IOBluetooth CoreWLAN Quartz Cocoa LocalAuthentication;
+      };
+      qtwebglplugin = callPackage ../modules/qtwebglplugin.nix {};
+      qtwebkit = callPackage ../modules/qtwebkit.nix {
+        inherit (darwin) ICU;
+        inherit (darwin.apple_sdk.frameworks) OpenGL;
+      };
+      qtwebsockets = callPackage ../modules/qtwebsockets.nix {};
+      qtwebview = callPackage ../modules/qtwebview.nix {
+        inherit (darwin.apple_sdk.frameworks) CoreFoundation WebKit;
+      };
+      qtx11extras = callPackage ../modules/qtx11extras.nix {};
+      qtxmlpatterns = callPackage ../modules/qtxmlpatterns.nix {};
+
+      env = callPackage ../qt-env.nix {};
+      full = env "qt-full-${qtbase.version}" ([
+        qt3d qtcharts qtconnectivity qtdeclarative qtdoc qtgraphicaleffects
+        qtimageformats qtlocation qtmultimedia qtquickcontrols qtquickcontrols2
+        qtscript qtsensors qtserialport qtsvg qttools qttranslations
+        qtvirtualkeyboard qtwebchannel qtwebengine qtwebkit qtwebsockets
+        qtwebview qtx11extras qtxmlpatterns
+      ] ++ lib.optional (!stdenv.isDarwin) qtwayland
+        ++ lib.optional (stdenv.isDarwin) qtmacextras);
+
+      qmake = makeSetupHook {
+        deps = [ self.qtbase.dev ];
+        substitutions = {
+          inherit debug;
+          fix_qmake_libtool = ../hooks/fix-qmake-libtool.sh;
+        };
+      } ../hooks/qmake-hook.sh;
+
+      wrapQtAppsHook = makeSetupHook {
+        deps = [ self.qtbase.dev makeWrapper ]
+          ++ lib.optional stdenv.isLinux self.qtwayland.dev;
+      } ../hooks/wrap-qt-apps-hook.sh;
+    };
+
+   self = lib.makeScope newScope addPackages;
+
+in self
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/fetch.sh b/nixpkgs/pkgs/development/libraries/qt-5/5.15/fetch.sh
new file mode 100755
index 000000000000..dcada3649078
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/fetch.sh
@@ -0,0 +1,17 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p nix-prefetch-scripts jq
+
+set -eox pipefail
+
+here="$(dirname "${BASH_SOURCE[0]}")"
+modules="${here}/modules"
+srcs="${here}/srcs-generated.json"
+
+while read -r module; do
+    if [[ -z "$module" ]]; then continue; fi
+    url="https://invent.kde.org/qt/qt/${module}.git"
+    nix-prefetch-git --url $url --rev refs/heads/kde/5.15 \
+        | jq "{key: \"${module}\", value: {url,rev,sha256}}"
+done < "$modules" | jq -s 'from_entries' > "${srcs}.tmp"
+
+mv "${srcs}.tmp" "$srcs"
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/modules b/nixpkgs/pkgs/development/libraries/qt-5/5.15/modules
new file mode 100644
index 000000000000..d6ce8822d541
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/modules
@@ -0,0 +1,41 @@
+qt3d
+qtactiveqt
+qtandroidextras
+qtbase
+qtcharts
+qtconnectivity
+qtdatavis3d
+qtdeclarative
+qtdoc
+qtgamepad
+qtgraphicaleffects
+qtimageformats
+qtlocation
+qtlottie
+qtmacextras
+qtmultimedia
+qtnetworkauth
+qtpurchasing
+qtquick3d
+qtquickcontrols
+qtquickcontrols2
+qtquicktimeline
+qtremoteobjects
+qtscript
+qtscxml
+qtsensors
+qtserialbus
+qtserialport
+qtspeech
+qtsvg
+qttools
+qttranslations
+qtvirtualkeyboard
+qtwayland
+qtwebchannel
+qtwebglplugin
+qtwebsockets
+qtwebview
+qtwinextras
+qtx11extras
+qtxmlpatterns
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0001-qtbase-mkspecs-mac.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0001-qtbase-mkspecs-mac.patch
new file mode 100644
index 000000000000..3a2900abdd6b
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0001-qtbase-mkspecs-mac.patch
@@ -0,0 +1,409 @@
+From 5ec1d1009d9943f20e82ffc087deabb31d447e75 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Milan=20P=C3=A4ssler?= <me@pbb.lc>
+Date: Fri, 3 Apr 2020 21:07:58 +0200
+Subject: [PATCH 01/11] qtbase-mkspecs-mac
+
+---
+ mkspecs/common/mac.conf               |   2 +-
+ mkspecs/features/mac/default_post.prf | 206 --------------------------
+ mkspecs/features/mac/default_pre.prf  |  58 --------
+ mkspecs/features/mac/sdk.mk           |  25 ----
+ mkspecs/features/mac/sdk.prf          |  61 --------
+ 5 files changed, 1 insertion(+), 351 deletions(-)
+ delete mode 100644 mkspecs/features/mac/sdk.mk
+ delete mode 100644 mkspecs/features/mac/sdk.prf
+
+diff --git a/mkspecs/common/mac.conf b/mkspecs/common/mac.conf
+index 61bea952b2..9909dae726 100644
+--- a/mkspecs/common/mac.conf
++++ b/mkspecs/common/mac.conf
+@@ -23,7 +23,7 @@ QMAKE_INCDIR_OPENGL     = \
+ 
+ QMAKE_FIX_RPATH         = install_name_tool -id
+ 
+-QMAKE_LFLAGS_RPATH      = -Wl,-rpath,
++QMAKE_LFLAGS_RPATH      =
+ QMAKE_LFLAGS_GCSECTIONS = -Wl,-dead_strip
+ 
+ QMAKE_LFLAGS_REL_RPATH  =
+diff --git a/mkspecs/features/mac/default_post.prf b/mkspecs/features/mac/default_post.prf
+index 92a9112bca..b80ec1e801 100644
+--- a/mkspecs/features/mac/default_post.prf
++++ b/mkspecs/features/mac/default_post.prf
+@@ -68,212 +68,6 @@ qt {
+     }
+ }
+ 
+-# Add the same default rpaths as Xcode does for new projects.
+-# This is especially important for iOS/tvOS/watchOS where no other option is possible.
+-!no_default_rpath {
+-    uikit: QMAKE_RPATHDIR += @executable_path/Frameworks
+-    else: QMAKE_RPATHDIR += @executable_path/../Frameworks
+-    equals(TEMPLATE, lib):!plugin:lib_bundle: QMAKE_RPATHDIR += @loader_path/Frameworks
+-}
+-
+-# Don't pass -headerpad_max_install_names when using Bitcode.
+-# In that case the linker emits a warning stating that the flag is ignored when
+-# used with bitcode, for reasons that cannot be determined (rdar://problem/20748962).
+-# Using this flag is also unnecessary in practice on UIKit platforms since they
+-# are sandboxed, and only UIKit platforms support bitcode to begin with.
+-!bitcode: QMAKE_LFLAGS += $$QMAKE_LFLAGS_HEADERPAD
+-
+-app_extension_api_only {
+-    QMAKE_CFLAGS              += $$QMAKE_CFLAGS_APPLICATION_EXTENSION
+-    QMAKE_CXXFLAGS            += $$QMAKE_CFLAGS_APPLICATION_EXTENSION
+-    QMAKE_CXXFLAGS_PRECOMPILE += $$QMAKE_CFLAGS_APPLICATION_EXTENSION
+-    QMAKE_LFLAGS              += $$QMAKE_CFLAGS_APPLICATION_EXTENSION
+-}
+-
+-macx-xcode {
+-    qmake_pkginfo_typeinfo.name = QMAKE_PKGINFO_TYPEINFO
+-    !isEmpty(QMAKE_PKGINFO_TYPEINFO): \
+-        qmake_pkginfo_typeinfo.value = $$QMAKE_PKGINFO_TYPEINFO
+-    else: \
+-        qmake_pkginfo_typeinfo.value = "????"
+-    QMAKE_MAC_XCODE_SETTINGS += qmake_pkginfo_typeinfo
+-
+-    bundle_version = $$VERSION
+-    isEmpty(bundle_version): bundle_version = 1.0.0
+-
+-    l = $$split(bundle_version, '.') 0 0  # make sure there are at least three
+-    VER_MAJ = $$member(l, 0, 0)
+-    VER_MIN = $$member(l, 1, 1)
+-    VER_PAT = $$member(l, 2, 2)
+-    unset(l)
+-
+-    qmake_full_version.name = QMAKE_FULL_VERSION
+-    qmake_full_version.value = $${VER_MAJ}.$${VER_MIN}.$${VER_PAT}
+-    QMAKE_MAC_XCODE_SETTINGS += qmake_full_version
+-
+-    qmake_short_version.name = QMAKE_SHORT_VERSION
+-    qmake_short_version.value = $${VER_MAJ}.$${VER_MIN}
+-    QMAKE_MAC_XCODE_SETTINGS += qmake_short_version
+-
+-    !isEmpty(QMAKE_XCODE_DEBUG_INFORMATION_FORMAT) {
+-        debug_information_format.name = DEBUG_INFORMATION_FORMAT
+-        debug_information_format.value = $$QMAKE_XCODE_DEBUG_INFORMATION_FORMAT
+-        debug_information_format.build = debug
+-        QMAKE_MAC_XCODE_SETTINGS += debug_information_format
+-    }
+-
+-    QMAKE_XCODE_ARCHS =
+-
+-    arch_device.name = "ARCHS[sdk=$${device.sdk}*]"
+-    arch_device.value = $$QMAKE_APPLE_DEVICE_ARCHS
+-    QMAKE_XCODE_ARCHS += $$QMAKE_APPLE_DEVICE_ARCHS
+-    QMAKE_MAC_XCODE_SETTINGS += arch_device
+-
+-    simulator {
+-        arch_simulator.name = "ARCHS[sdk=$${simulator.sdk}*]"
+-        arch_simulator.value = $$QMAKE_APPLE_SIMULATOR_ARCHS
+-        QMAKE_XCODE_ARCHS += $$QMAKE_APPLE_SIMULATOR_ARCHS
+-        QMAKE_MAC_XCODE_SETTINGS += arch_simulator
+-    }
+-
+-    only_active_arch.name = ONLY_ACTIVE_ARCH
+-    only_active_arch.value = YES
+-    only_active_arch.build = debug
+-    QMAKE_MAC_XCODE_SETTINGS += only_active_arch
+-} else {
+-    device|!simulator: VALID_DEVICE_ARCHS = $$QMAKE_APPLE_DEVICE_ARCHS
+-    simulator: VALID_SIMULATOR_ARCHS = $$QMAKE_APPLE_SIMULATOR_ARCHS
+-    VALID_ARCHS = $$VALID_DEVICE_ARCHS $$VALID_SIMULATOR_ARCHS
+-
+-    isEmpty(VALID_ARCHS): \
+-        error("QMAKE_APPLE_DEVICE_ARCHS or QMAKE_APPLE_SIMULATOR_ARCHS must contain at least one architecture")
+-
+-    single_arch: VALID_ARCHS = $$first(VALID_ARCHS)
+-
+-    ACTIVE_ARCHS = $(filter $(EXPORT_VALID_ARCHS), $(ARCHS))
+-    ARCH_ARGS = $(foreach arch, $(if $(EXPORT_ACTIVE_ARCHS), $(EXPORT_ACTIVE_ARCHS), $(EXPORT_VALID_ARCHS)), -arch $(arch))
+-
+-    QMAKE_EXTRA_VARIABLES += VALID_ARCHS ACTIVE_ARCHS ARCH_ARGS
+-
+-    arch_flags = $(EXPORT_ARCH_ARGS)
+-
+-    QMAKE_CFLAGS += $$arch_flags
+-    QMAKE_CXXFLAGS += $$arch_flags
+-    QMAKE_LFLAGS += $$arch_flags
+-
+-    QMAKE_PCH_ARCHS = $$VALID_ARCHS
+-
+-    macos: deployment_target = $$QMAKE_MACOSX_DEPLOYMENT_TARGET
+-    ios: deployment_target = $$QMAKE_IOS_DEPLOYMENT_TARGET
+-    tvos: deployment_target = $$QMAKE_TVOS_DEPLOYMENT_TARGET
+-    watchos: deployment_target = $$QMAKE_WATCHOS_DEPLOYMENT_TARGET
+-
+-    # If we're doing a simulator and device build, device and simulator
+-    # architectures use different paths and flags for the sysroot and
+-    # deployment target switch, so we must multiplex them across multiple
+-    # architectures using -Xarch. Otherwise we fall back to the simple path.
+-    # This is not strictly necessary, but results in cleaner command lines
+-    # and makes it easier for people to override EXPORT_VALID_ARCHS to limit
+-    # individual rules to a different set of architecture(s) from the overall
+-    # build (such as machtest in QtCore).
+-    simulator:device {
+-        QMAKE_XARCH_CFLAGS =
+-        QMAKE_XARCH_LFLAGS =
+-        QMAKE_EXTRA_VARIABLES += QMAKE_XARCH_CFLAGS QMAKE_XARCH_LFLAGS
+-
+-        for (arch, VALID_ARCHS) {
+-            contains(VALID_SIMULATOR_ARCHS, $$arch) {
+-                sdk = $$simulator.sdk
+-                version_identifier = $$simulator.deployment_identifier
+-            } else {
+-                sdk = $$device.sdk
+-                version_identifier = $$device.deployment_identifier
+-            }
+-
+-            version_min_flags = \
+-                -Xarch_$${arch} \
+-                -m$${version_identifier}-version-min=$$deployment_target
+-            QMAKE_XARCH_CFLAGS_$${arch} = $$version_min_flags \
+-                -Xarch_$${arch} \
+-                -isysroot$$xcodeSDKInfo(Path, $$sdk)
+-            QMAKE_XARCH_LFLAGS_$${arch} = $$version_min_flags \
+-                -Xarch_$${arch} \
+-                -isysroot$$xcodeSDKInfo(Path, $$sdk)
+-
+-            QMAKE_XARCH_CFLAGS += $(EXPORT_QMAKE_XARCH_CFLAGS_$${arch})
+-            QMAKE_XARCH_LFLAGS += $(EXPORT_QMAKE_XARCH_LFLAGS_$${arch})
+-
+-            QMAKE_EXTRA_VARIABLES += \
+-                QMAKE_XARCH_CFLAGS_$${arch} \
+-                QMAKE_XARCH_LFLAGS_$${arch}
+-        }
+-
+-        QMAKE_CFLAGS += $(EXPORT_QMAKE_XARCH_CFLAGS)
+-        QMAKE_CXXFLAGS += $(EXPORT_QMAKE_XARCH_CFLAGS)
+-        QMAKE_LFLAGS += $(EXPORT_QMAKE_XARCH_LFLAGS)
+-    } else {
+-        simulator {
+-            version_identifier = $$simulator.deployment_identifier
+-            sysroot_path  = $$xcodeSDKInfo(Path, $$simulator.sdk)
+-        } else {
+-            version_identifier = $$device.deployment_identifier
+-            sysroot_path  = $$xcodeSDKInfo(Path, $$device.sdk)
+-        }
+-        version_min_flag = -m$${version_identifier}-version-min=$$deployment_target
+-        QMAKE_CFLAGS += -isysroot $$sysroot_path $$version_min_flag
+-        QMAKE_CXXFLAGS += -isysroot $$sysroot_path $$version_min_flag
+-        QMAKE_LFLAGS += -isysroot $$sysroot_path $$version_min_flag
+-    }
+-
+-    # Enable precompiled headers for multiple architectures
+-    QMAKE_CFLAGS_USE_PRECOMPILE =
+-    for (arch, VALID_ARCHS) {
+-        icc_pch_style: \
+-            use_flag = "-pch-use "
+-        else: \
+-            use_flag = -include
+-
+-        # Only use Xarch with multi-arch, as the option confuses ccache
+-        count(VALID_ARCHS, 1, greaterThan): \
+-            QMAKE_CFLAGS_USE_PRECOMPILE += \
+-                -Xarch_$${arch}
+-
+-        QMAKE_CFLAGS_USE_PRECOMPILE += \
+-            $${use_flag}${QMAKE_PCH_OUTPUT_$${arch}}
+-    }
+-    icc_pch_style {
+-        QMAKE_CXXFLAGS_USE_PRECOMPILE = $$QMAKE_CFLAGS_USE_PRECOMPILE -include ${QMAKE_PCH_INPUT}
+-        QMAKE_CFLAGS_USE_PRECOMPILE =
+-    } else {
+-        QMAKE_CXXFLAGS_USE_PRECOMPILE = $$QMAKE_CFLAGS_USE_PRECOMPILE
+-        QMAKE_OBJCFLAGS_USE_PRECOMPILE = $$QMAKE_CFLAGS_USE_PRECOMPILE
+-        QMAKE_OBJCXXFLAGS_USE_PRECOMPILE = $$QMAKE_CFLAGS_USE_PRECOMPILE
+-    }
+-
+-    QMAKE_PCH_OUTPUT_EXT = _${QMAKE_PCH_ARCH}$${QMAKE_PCH_OUTPUT_EXT}
+-}
+-
+-!equals(sdk_version, $$QMAKE_MAC_SDK_VERSION) {
+-    # Explicit SDK version has been set, respect that
+-    QMAKE_LFLAGS += -Wl,-sdk_version -Wl,$$sdk_version
+-}
+-
+-cache(QMAKE_XCODE_DEVELOPER_PATH, stash)
+-!isEmpty(QMAKE_XCODE_VERSION): \
+-    cache(QMAKE_XCODE_VERSION, stash)
+-
+-QMAKE_XCODE_LIBRARY_SUFFIX = $$qtPlatformTargetSuffix()
+-
+-xcode_product_bundle_identifier_setting.name = PRODUCT_BUNDLE_IDENTIFIER
+-xcode_product_bundle_identifier_setting.value = $$QMAKE_TARGET_BUNDLE_PREFIX
+-isEmpty(xcode_product_bundle_identifier_setting.value): \
+-    xcode_product_bundle_identifier_setting.value = "com.yourcompany"
+-xcode_product_bundle_target = $$QMAKE_BUNDLE
+-isEmpty(xcode_product_bundle_target): \
+-    xcode_product_bundle_target = ${PRODUCT_NAME:rfc1034identifier}
+-xcode_product_bundle_identifier_setting.value = "$${xcode_product_bundle_identifier_setting.value}.$${xcode_product_bundle_target}"
+-QMAKE_MAC_XCODE_SETTINGS += xcode_product_bundle_identifier_setting
+-
+ !macx-xcode {
+     generate_xcode_project.commands = @$(QMAKE) -spec macx-xcode \"$(EXPORT__PRO_FILE_)\" $$QMAKE_ARGS
+     generate_xcode_project.target = xcodeproj
+diff --git a/mkspecs/features/mac/default_pre.prf b/mkspecs/features/mac/default_pre.prf
+index e3534561a5..3b01424e67 100644
+--- a/mkspecs/features/mac/default_pre.prf
++++ b/mkspecs/features/mac/default_pre.prf
+@@ -1,60 +1,2 @@
+ CONFIG = asset_catalogs rez $$CONFIG
+ load(default_pre)
+-
+-isEmpty(QMAKE_XCODE_DEVELOPER_PATH) {
+-    # Get path of Xcode's Developer directory
+-    QMAKE_XCODE_DEVELOPER_PATH = $$system("/usr/bin/xcode-select --print-path 2>/dev/null")
+-    isEmpty(QMAKE_XCODE_DEVELOPER_PATH): \
+-        error("Xcode path is not set. Please use xcode-select to choose Xcode installation path.")
+-
+-    # Make sure Xcode path is valid
+-    !exists($$QMAKE_XCODE_DEVELOPER_PATH): \
+-        error("Xcode is not installed in $${QMAKE_XCODE_DEVELOPER_PATH}. Please use xcode-select to choose Xcode installation path.")
+-}
+-
+-isEmpty(QMAKE_XCODEBUILD_PATH): \
+-    QMAKE_XCODEBUILD_PATH = $$system("/usr/bin/xcrun -find xcodebuild 2>/dev/null")
+-
+-!isEmpty(QMAKE_XCODEBUILD_PATH) {
+-    # Make sure Xcode is set up properly
+-    !system("/usr/bin/xcrun xcodebuild -license check 2>/dev/null"): \
+-        error("Xcode not set up properly. You need to confirm the license agreement by running 'sudo xcrun xcodebuild -license accept'.")
+-
+-    isEmpty(QMAKE_XCODE_VERSION) {
+-        # Extract Xcode version using xcodebuild
+-        xcode_version = $$system("/usr/bin/xcrun xcodebuild -version")
+-        QMAKE_XCODE_VERSION = $$member(xcode_version, 1)
+-        isEmpty(QMAKE_XCODE_VERSION): error("Could not resolve Xcode version.")
+-        unset(xcode_version)
+-    }
+-}
+-
+-isEmpty(QMAKE_TARGET_BUNDLE_PREFIX) {
+-    QMAKE_XCODE_PREFERENCES_FILE = $$(HOME)/Library/Preferences/com.apple.dt.Xcode.plist
+-    exists($$QMAKE_XCODE_PREFERENCES_FILE): \
+-        QMAKE_TARGET_BUNDLE_PREFIX = $$system("/usr/libexec/PlistBuddy -c 'print IDETemplateOptions:bundleIdentifierPrefix' $$QMAKE_XCODE_PREFERENCES_FILE 2>/dev/null")
+-
+-    !isEmpty(_QMAKE_CACHE_):!isEmpty(QMAKE_TARGET_BUNDLE_PREFIX): \
+-        cache(QMAKE_TARGET_BUNDLE_PREFIX)
+-}
+-
+-QMAKE_ASSET_CATALOGS_APP_ICON = AppIcon
+-
+-# Make the default debug info format for static debug builds
+-# DWARF instead of DWARF with dSYM. This cuts down build times
+-# for application debug builds significantly, as Xcode doesn't
+-# have to pull out all the DWARF info from the Qt static libs
+-# and put it into a dSYM file. We don't need that dSYM file in
+-# the first place, since the information is available in the
+-# object files inside the archives (static libraries).
+-macx-xcode:qtConfig(static): \
+-    QMAKE_XCODE_DEBUG_INFORMATION_FORMAT = dwarf
+-
+-# This variable is used by the xcode_dynamic_library_suffix
+-# feature, which allows Xcode to choose the Qt libraries to link to
+-# at build time, depending on the current Xcode SDK and configuration.
+-QMAKE_XCODE_LIBRARY_SUFFIX_SETTING = QT_LIBRARY_SUFFIX
+-
+-xcode_copy_phase_strip_setting.name = COPY_PHASE_STRIP
+-xcode_copy_phase_strip_setting.value = NO
+-QMAKE_MAC_XCODE_SETTINGS += xcode_copy_phase_strip_setting
+diff --git a/mkspecs/features/mac/sdk.mk b/mkspecs/features/mac/sdk.mk
+--- a/mkspecs/features/mac/sdk.mk
++++ b/mkspecs/features/mac/sdk.mk
+@@ -1,25 +0,0 @@
+-
+-ifeq ($(QT_MAC_SDK_NO_VERSION_CHECK),)
+-    CHECK_SDK_COMMAND = /usr/bin/xcrun --sdk $(EXPORT_QMAKE_MAC_SDK) -show-sdk-version 2>&1
+-    CURRENT_MAC_SDK_VERSION := $(shell DEVELOPER_DIR=$(EXPORT_QMAKE_XCODE_DEVELOPER_PATH) $(CHECK_SDK_COMMAND))
+-    ifneq ($(CURRENT_MAC_SDK_VERSION),$(EXPORT_QMAKE_MAC_SDK_VERSION))
+-        # We don't want to complain about out of date SDK unless the target needs to be remade.
+-        # This covers use-cases such as running 'make check' after moving the build to a
+-        # computer without Xcode or with a different Xcode version.
+-        TARGET_UP_TO_DATE := $(shell QT_MAC_SDK_NO_VERSION_CHECK=1 $(MAKE) --question $(QMAKE_TARGET) && echo 1 || echo 0)
+-        ifeq ($(TARGET_UP_TO_DATE),0)
+-            ifneq ($(findstring missing DEVELOPER_DIR path,$(CURRENT_MAC_SDK_VERSION)),)
+-                $(info The developer dir $(EXPORT_QMAKE_XCODE_DEVELOPER_PATH) is no longer valid.)
+-            else ifneq ($(findstring SDK "$(EXPORT_QMAKE_MAC_SDK)" cannot be located,$(CURRENT_MAC_SDK_VERSION)),)
+-                $(info The developer dir $(EXPORT_QMAKE_XCODE_DEVELOPER_PATH) no longer contains the $(EXPORT_QMAKE_MAC_SDK_VERSION) platform SDK.)
+-            else ifneq ($(CURRENT_MAC_SDK_VERSION),)
+-                $(info The platform SDK has been changed from version $(EXPORT_QMAKE_MAC_SDK_VERSION) to version $(CURRENT_MAC_SDK_VERSION).)
+-            else
+-                $(info Unknown error resolving current platform SDK version.)
+-            endif
+-            $(info This requires a fresh build. Please wipe the build directory completely,)
+-            $(info including any .qmake.stash and .qmake.cache files generated by qmake.)
+-            $(error ^)
+-        endif
+-    endif
+-endif
+diff --git a/mkspecs/features/mac/sdk.prf b/mkspecs/features/mac/sdk.prf
+deleted file mode 100644
+index 3a9c2778bb..0000000000
+--- a/mkspecs/features/mac/sdk.prf
++++ /dev/null
+@@ -1,61 +0,0 @@
+-
+-isEmpty(QMAKE_MAC_SDK): \
+-    error("QMAKE_MAC_SDK must be set when using CONFIG += sdk.")
+-
+-contains(QMAKE_MAC_SDK, .*/.*): \
+-    error("QMAKE_MAC_SDK can only contain short-form SDK names (eg. macosx, iphoneos)")
+-
+-defineReplace(xcodeSDKInfo) {
+-    info = $$1
+-    equals(info, "Path"): \
+-        infoarg = --show-sdk-path
+-    equals(info, "PlatformPath"): \
+-        infoarg = --show-sdk-platform-path
+-    equals(info, "SDKVersion"): \
+-        infoarg = --show-sdk-version
+-    sdk = $$2
+-    isEmpty(sdk): \
+-        sdk = $$QMAKE_MAC_SDK
+-
+-    isEmpty(QMAKE_MAC_SDK.$${sdk}.$${info}) {
+-        QMAKE_MAC_SDK.$${sdk}.$${info} = $$system("/usr/bin/xcrun --sdk $$sdk $$infoarg 2>/dev/null")
+-        # --show-sdk-platform-path won't work for Command Line Tools; this is fine
+-        # only used by the XCTest backend to testlib
+-        isEmpty(QMAKE_MAC_SDK.$${sdk}.$${info}):if(!isEmpty(QMAKE_XCODEBUILD_PATH)|!equals(infoarg, "--show-sdk-platform-path")): \
+-            error("Could not resolve SDK $$info for \'$$sdk\' using $$infoarg")
+-        cache(QMAKE_MAC_SDK.$${sdk}.$${info}, set stash, QMAKE_MAC_SDK.$${sdk}.$${info})
+-    }
+-
+-    return($$eval(QMAKE_MAC_SDK.$${sdk}.$${info}))
+-}
+-
+-QMAKE_MAC_SDK_PATH = $$xcodeSDKInfo(Path)
+-QMAKE_MAC_SDK_PLATFORM_PATH = $$xcodeSDKInfo(PlatformPath)
+-QMAKE_MAC_SDK_VERSION = $$xcodeSDKInfo(SDKVersion)
+-
+-isEmpty(QMAKE_EXPORT_INCDIR_OPENGL) {
+-    QMAKE_EXPORT_INCDIR_OPENGL = $$QMAKE_INCDIR_OPENGL
+-    sysrootified =
+-    for(val, QMAKE_INCDIR_OPENGL): sysrootified += $${QMAKE_MAC_SDK_PATH}$$val
+-    QMAKE_INCDIR_OPENGL = $$sysrootified
+-}
+-
+-QMAKESPEC_NAME = $$basename(QMAKESPEC)
+-
+-# Resolve SDK version of various tools
+-for(tool, $$list(QMAKE_CC QMAKE_CXX QMAKE_FIX_RPATH QMAKE_AR QMAKE_RANLIB QMAKE_LINK QMAKE_LINK_SHLIB QMAKE_ACTOOL QMAKE_LINK_C QMAKE_LINK_C_SHLIB)) {
+-    tool_variable = QMAKE_MAC_SDK.$${QMAKESPEC_NAME}.$${QMAKE_MAC_SDK}.$${tool}
+-    !isEmpty($$tool_variable) {
+-        $$tool = $$eval($$tool_variable)
+-        next()
+-    }
+-
+-    value = $$eval($$tool)
+-    isEmpty(value): next()
+-
+-    sysrooted = $$system("/usr/bin/xcrun -sdk $$QMAKE_MAC_SDK -find $$first(value) 2>/dev/null")
+-    isEmpty(sysrooted): next()
+-
+-    $$tool = $$sysrooted $$member(value, 1, -1)
+-    cache($$tool_variable, set stash, $$tool)
+-}
+-- 
+2.25.4
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0003-qtbase-mkspecs.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0003-qtbase-mkspecs.patch
new file mode 100644
index 000000000000..1c9012c0f2e8
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0003-qtbase-mkspecs.patch
@@ -0,0 +1,490 @@
+From 03a5a7eab673d18d00c9b5eb8c7d5b790079e8ff Mon Sep 17 00:00:00 2001
+From: OPNA2608 <christoph.neidahl@gmail.com>
+Date: Mon, 12 Apr 2021 20:20:46 +0200
+Subject: [PATCH 03/11] qtbase-mkspecs
+
+---
+ mkspecs/features/create_cmake.prf             | 51 +++---------
+ .../data/cmake/Qt5BasicConfig.cmake.in        | 80 +------------------
+ mkspecs/features/qml_module.prf               |  2 +-
+ mkspecs/features/qml_plugin.prf               |  2 +-
+ mkspecs/features/qt_app.prf                   |  2 +-
+ mkspecs/features/qt_build_paths.prf           |  4 +-
+ mkspecs/features/qt_docs.prf                  | 10 +--
+ mkspecs/features/qt_example_installs.prf      |  2 +-
+ mkspecs/features/qt_functions.prf             | 27 ++++---
+ mkspecs/features/qt_installs.prf              | 22 ++---
+ mkspecs/features/qt_plugin.prf                |  2 +-
+ 11 files changed, 52 insertions(+), 152 deletions(-)
+
+diff --git a/mkspecs/features/create_cmake.prf b/mkspecs/features/create_cmake.prf
+index 24ed125f12..f0666a1986 100644
+--- a/mkspecs/features/create_cmake.prf
++++ b/mkspecs/features/create_cmake.prf
+@@ -21,7 +21,7 @@ load(cmake_functions)
+ # at cmake time whether package has been found via a symlink, and correct
+ # that to an absolute path. This is only done for installations to
+ # the /usr or / prefix.
+-CMAKE_INSTALL_LIBS_DIR = $$cmakeTargetPath($$[QT_INSTALL_LIBS])
++CMAKE_INSTALL_LIBS_DIR = $$cmakeTargetPath($$NIX_OUTPUT_OUT/lib/)
+ contains(CMAKE_INSTALL_LIBS_DIR, ^(/usr)?/lib(64)?.*): CMAKE_USR_MOVE_WORKAROUND = $$CMAKE_INSTALL_LIBS_DIR
+ 
+ CMAKE_OUT_DIR = $$MODULE_BASE_OUTDIR/lib/cmake
+@@ -77,45 +77,20 @@ split_incpath {
+         $$cmake_extra_source_includes.output
+ }
+ 
+-CMAKE_INCLUDE_DIR = $$cmakeRelativePath($$[QT_INSTALL_HEADERS], $$[QT_INSTALL_PREFIX])
+-contains(CMAKE_INCLUDE_DIR, "^\\.\\./.*") {
+-    CMAKE_INCLUDE_DIR = $$[QT_INSTALL_HEADERS]/
+-    CMAKE_INCLUDE_DIR_IS_ABSOLUTE = True
+-}
++CMAKE_INCLUDE_DIR = $$NIX_OUTPUT_DEV/include/
++CMAKE_INCLUDE_DIR_IS_ABSOLUTE = True
+ 
+-CMAKE_LIB_DIR = $$cmakeRelativePath($$[QT_INSTALL_LIBS], $$[QT_INSTALL_PREFIX])
+-contains(CMAKE_LIB_DIR,"^\\.\\./.*") {
+-    CMAKE_LIB_DIR = $$[QT_INSTALL_LIBS]/
+-    CMAKE_LIB_DIR_IS_ABSOLUTE = True
+-} else {
+-    CMAKE_RELATIVE_INSTALL_LIBS_DIR = $$cmakeRelativePath($$[QT_INSTALL_PREFIX], $$[QT_INSTALL_LIBS])
+-    # We need to go up another two levels because the CMake files are
+-    # installed in $${CMAKE_LIB_DIR}/cmake/Qt5$${CMAKE_MODULE_NAME}
+-    CMAKE_RELATIVE_INSTALL_DIR = "$${CMAKE_RELATIVE_INSTALL_LIBS_DIR}../../"
+-}
++CMAKE_BIN_DIR = $$NIX_OUTPUT_BIN/bin/
++CMAKE_BIN_DIR_IS_ABSOLUTE = True
+ 
+-CMAKE_BIN_DIR = $$cmakeRelativePath($$[QT_HOST_BINS], $$[QT_INSTALL_PREFIX])
+-contains(CMAKE_BIN_DIR, "^\\.\\./.*") {
+-    CMAKE_BIN_DIR = $$[QT_HOST_BINS]/
+-    CMAKE_BIN_DIR_IS_ABSOLUTE = True
+-}
++CMAKE_LIB_DIR = $$NIX_OUTPUT_OUT/lib/
++CMAKE_LIB_DIR_IS_ABSOLUTE = True
+ 
+-CMAKE_PLUGIN_DIR = $$cmakeRelativePath($$[QT_INSTALL_PLUGINS], $$[QT_INSTALL_PREFIX])
+-contains(CMAKE_PLUGIN_DIR, "^\\.\\./.*") {
+-    CMAKE_PLUGIN_DIR = $$[QT_INSTALL_PLUGINS]/
+-    CMAKE_PLUGIN_DIR_IS_ABSOLUTE = True
+-}
++CMAKE_PLUGIN_DIR = $$NIX_OUTPUT_PLUGIN/
++CMAKE_PLUGIN_DIR_IS_ABSOLUTE = True
+ 
+-win32:!static:!staticlib {
+-    CMAKE_DLL_DIR = $$cmakeRelativePath($$[QT_INSTALL_BINS], $$[QT_INSTALL_PREFIX])
+-    contains(CMAKE_DLL_DIR, "^\\.\\./.*") {
+-        CMAKE_DLL_DIR = $$[QT_INSTALL_BINS]/
+-        CMAKE_DLL_DIR_IS_ABSOLUTE = True
+-    }
+-} else {
+-    CMAKE_DLL_DIR = $$CMAKE_LIB_DIR
+-    CMAKE_DLL_DIR_IS_ABSOLUTE = $$CMAKE_LIB_DIR_IS_ABSOLUTE
+-}
++CMAKE_DLL_DIR = $$NIX_OUTPUT_OUT/lib/
++CMAKE_DLL_DIR_IS_ABSOLUTE = True
+ 
+ static|staticlib:CMAKE_STATIC_TYPE = true
+ 
+@@ -258,7 +233,7 @@ contains(CONFIG, plugin) {
+ 
+     cmake_qt5_plugin_file.files = $$cmake_target_file.output
+     static|staticlib: cmake_qt5_plugin_file.files += $$cmake_qt5_plugin_import_file.output
+-    cmake_qt5_plugin_file.path = $$[QT_INSTALL_LIBS]/cmake/Qt5$${CMAKE_MODULE_NAME}
++    cmake_qt5_plugin_file.path = $$NIX_OUTPUT_OUT/lib/cmake/Qt5$${CMAKE_MODULE_NAME}
+     INSTALLS += cmake_qt5_plugin_file
+ 
+     return()
+@@ -400,7 +375,7 @@ exists($$cmake_macros_file.input) {
+     cmake_qt5_module_files.files += $$cmake_macros_file.output
+ }
+ 
+-cmake_qt5_module_files.path = $$[QT_INSTALL_LIBS]/cmake/Qt5$${CMAKE_MODULE_NAME}
++cmake_qt5_module_files.path = $$NIX_OUTPUT_OUT/lib/cmake/Qt5$${CMAKE_MODULE_NAME}
+ 
+ # We are generating cmake files. Most developers of Qt are not aware of cmake,
+ # so we require automatic tests to be available. The only module which should
+diff --git a/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in b/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in
+index db18dbece6..8246f37931 100644
+--- a/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in
++++ b/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in
+@@ -2,30 +2,6 @@ if (CMAKE_VERSION VERSION_LESS 3.1.0)
+     message(FATAL_ERROR \"Qt 5 $${CMAKE_MODULE_NAME} module requires at least CMake version 3.1.0\")
+ endif()
+ 
+-!!IF !isEmpty(CMAKE_USR_MOVE_WORKAROUND)
+-!!IF !isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-set(_qt5$${CMAKE_MODULE_NAME}_install_prefix \"$$[QT_INSTALL_PREFIX]\")
+-!!ELSE
+-get_filename_component(_IMPORT_PREFIX \"${CMAKE_CURRENT_LIST_FILE}\" PATH)
+-# Use original install prefix when loaded through a
+-# cross-prefix symbolic link such as /lib -> /usr/lib.
+-get_filename_component(_realCurr \"${_IMPORT_PREFIX}\" REALPATH)
+-get_filename_component(_realOrig \"$$CMAKE_INSTALL_LIBS_DIR/cmake/Qt5$${CMAKE_MODULE_NAME}\" REALPATH)
+-if(_realCurr STREQUAL _realOrig)
+-    get_filename_component(_qt5$${CMAKE_MODULE_NAME}_install_prefix \"$$CMAKE_INSTALL_LIBS_DIR/$${CMAKE_RELATIVE_INSTALL_LIBS_DIR}\" ABSOLUTE)
+-else()
+-    get_filename_component(_qt5$${CMAKE_MODULE_NAME}_install_prefix \"${CMAKE_CURRENT_LIST_DIR}/$${CMAKE_RELATIVE_INSTALL_DIR}\" ABSOLUTE)
+-endif()
+-unset(_realOrig)
+-unset(_realCurr)
+-unset(_IMPORT_PREFIX)
+-!!ENDIF
+-!!ELIF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-get_filename_component(_qt5$${CMAKE_MODULE_NAME}_install_prefix \"${CMAKE_CURRENT_LIST_DIR}/$${CMAKE_RELATIVE_INSTALL_DIR}\" ABSOLUTE)
+-!!ELSE
+-set(_qt5$${CMAKE_MODULE_NAME}_install_prefix \"$$[QT_INSTALL_PREFIX]\")
+-!!ENDIF
+-
+ !!IF !equals(TEMPLATE, aux)
+ # For backwards compatibility only. Use Qt5$${CMAKE_MODULE_NAME}_VERSION instead.
+ set(Qt5$${CMAKE_MODULE_NAME}_VERSION_STRING "$$eval(QT.$${MODULE}.VERSION)")
+@@ -145,11 +121,7 @@ macro(_populate_$${CMAKE_MODULE_NAME}_target_properties Configuration LIB_LOCATI
+       IsDebugAndRelease)
+     set_property(TARGET Qt5::$${CMAKE_MODULE_NAME} APPEND PROPERTY IMPORTED_CONFIGURATIONS ${Configuration})
+ 
+-!!IF isEmpty(CMAKE_DLL_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_DLL_DIR}${LIB_LOCATION}\")
+-!!ELSE
+     set(imported_location \"$${CMAKE_DLL_DIR}${LIB_LOCATION}\")
+-!!ENDIF
+     _qt5_$${CMAKE_MODULE_NAME}_check_file_exists(${imported_location})
+     set(_deps
+         ${_Qt5$${CMAKE_MODULE_NAME}_LIB_DEPENDENCIES}
+@@ -209,11 +181,7 @@ macro(_populate_$${CMAKE_MODULE_NAME}_target_properties Configuration LIB_LOCATI
+ !!ENDIF
+ 
+ !!IF !isEmpty(CMAKE_WINDOWS_BUILD)
+-!!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-    set(imported_implib \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}${IMPLIB_LOCATION}\")
+-!!ELSE
+     set(imported_implib \"IMPORTED_IMPLIB_${Configuration}\" \"$${CMAKE_LIB_DIR}${IMPLIB_LOCATION}\")
+-!!ENDIF
+     _qt5_$${CMAKE_MODULE_NAME}_check_file_exists(${imported_implib})
+     if(NOT \"${IMPLIB_LOCATION}\" STREQUAL \"\")
+         set_target_properties(Qt5::$${CMAKE_MODULE_NAME} PROPERTIES
+@@ -229,24 +197,13 @@ if (NOT TARGET Qt5::$${CMAKE_MODULE_NAME})
+ !!IF !no_module_headers
+ !!IF !isEmpty(CMAKE_BUILD_IS_FRAMEWORK)
+     set(_Qt5$${CMAKE_MODULE_NAME}_OWN_INCLUDE_DIRS
+-      \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework\"
+-      \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework/Headers\"
++      \"$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework\"
++      \"$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework/Headers\"
+     )
+ !!IF isEmpty(CMAKE_NO_PRIVATE_INCLUDES)
+     set(Qt5$${CMAKE_MODULE_NAME}_PRIVATE_INCLUDE_DIRS
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework/Versions/$$section(VERSION, ., 0, 0)/Headers/$$VERSION/\"
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework/Versions/$$section(VERSION, ., 0, 0)/Headers/$$VERSION/$${MODULE_INCNAME}\"
+-    )
+-!!ELSE
+-    set(Qt5$${CMAKE_MODULE_NAME}_PRIVATE_INCLUDE_DIRS \"\")
+-!!ENDIF
+-!!ELSE
+-!!IF isEmpty(CMAKE_INCLUDE_DIR_IS_ABSOLUTE)
+-    set(_Qt5$${CMAKE_MODULE_NAME}_OWN_INCLUDE_DIRS \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$$CMAKE_INCLUDE_DIR\" \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_INCLUDE_DIR}$${MODULE_INCNAME}\")
+-!!IF isEmpty(CMAKE_NO_PRIVATE_INCLUDES)
+-    set(Qt5$${CMAKE_MODULE_NAME}_PRIVATE_INCLUDE_DIRS
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_INCLUDE_DIR}$${MODULE_INCNAME}/$$VERSION\"
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_INCLUDE_DIR}$${MODULE_INCNAME}/$$VERSION/$${MODULE_INCNAME}\"
++      \"$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework/Versions/$$section(VERSION, .,0, 0)/Headers/$$VERSION/\"
++      \"$${CMAKE_LIB_DIR}$${CMAKE_QT_STEM}.framework/Versions/$$section(VERSION, .,0, 0)/Headers/$$VERSION/$${MODULE_INCNAME}\"
+     )
+ !!ELSE
+     set(Qt5$${CMAKE_MODULE_NAME}_PRIVATE_INCLUDE_DIRS \"\")
+@@ -262,7 +219,6 @@ if (NOT TARGET Qt5::$${CMAKE_MODULE_NAME})
+     set(Qt5$${CMAKE_MODULE_NAME}_PRIVATE_INCLUDE_DIRS \"\")
+ !!ENDIF
+ !!ENDIF
+-!!ENDIF
+ !!IF !isEmpty(CMAKE_ADD_SOURCE_INCLUDE_DIRS)
+     include(\"${CMAKE_CURRENT_LIST_DIR}/ExtraSourceIncludes.cmake\" OPTIONAL)
+ !!ENDIF
+@@ -491,25 +447,13 @@ if (NOT TARGET Qt5::$${CMAKE_MODULE_NAME})
+ !!IF !isEmpty(CMAKE_FIND_OTHER_LIBRARY_BUILD)
+ !!IF isEmpty(CMAKE_DEBUG_TYPE)
+ !!IF !isEmpty(CMAKE_STATIC_WINDOWS_BUILD)
+-!!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-    if (EXISTS \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_IMPLIB_FILE_LOCATION_DEBUG}\" )
+-!!ELSE // CMAKE_LIB_DIR_IS_ABSOLUTE
+     if (EXISTS \"$${CMAKE_IMPLIB_FILE_LOCATION_DEBUG}\" )
+-!!ENDIF // CMAKE_LIB_DIR_IS_ABSOLUTE
+         _populate_$${CMAKE_MODULE_NAME}_target_properties(DEBUG \"$${CMAKE_IMPLIB_FILE_LOCATION_DEBUG}\" \"\" $${CMAKE_DEBUG_AND_RELEASE})
+ !!ELSE // CMAKE_STATIC_WINDOWS_BUILD
+     if (EXISTS
+-!!IF isEmpty(CMAKE_DLL_DIR_IS_ABSOLUTE)
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_DLL_DIR}$${CMAKE_LIB_FILE_LOCATION_DEBUG}\"
+-!!ELSE
+         \"$${CMAKE_LIB_FILE_LOCATION_DEBUG}\"
+-!!ENDIF
+       AND EXISTS
+-!!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_IMPLIB_FILE_LOCATION_DEBUG}\" )
+-!!ELSE
+         \"$${CMAKE_IMPLIB_FILE_LOCATION_DEBUG}\" )
+-!!ENDIF
+         _populate_$${CMAKE_MODULE_NAME}_target_properties(DEBUG \"$${CMAKE_LIB_FILE_LOCATION_DEBUG}\" \"$${CMAKE_IMPLIB_FILE_LOCATION_DEBUG}\" $${CMAKE_DEBUG_AND_RELEASE})
+ !!ENDIF // CMAKE_STATIC_WINDOWS_BUILD
+     endif()
+@@ -528,25 +472,13 @@ if (NOT TARGET Qt5::$${CMAKE_MODULE_NAME})
+ !!IF !isEmpty(CMAKE_FIND_OTHER_LIBRARY_BUILD)
+ !!IF isEmpty(CMAKE_RELEASE_TYPE)
+ !!IF !isEmpty(CMAKE_STATIC_WINDOWS_BUILD)
+-!!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-    if (EXISTS \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_IMPLIB_FILE_LOCATION_RELEASE}\" )
+-!!ELSE // CMAKE_LIB_DIR_IS_ABSOLUTE
+     if (EXISTS \"$${CMAKE_IMPLIB_FILE_LOCATION_RELEASE}\" )
+-!!ENDIF // CMAKE_LIB_DIR_IS_ABSOLUTE
+         _populate_$${CMAKE_MODULE_NAME}_target_properties(RELEASE \"$${CMAKE_IMPLIB_FILE_LOCATION_RELEASE}\" \"\" $${CMAKE_DEBUG_AND_RELEASE})
+ !!ELSE // CMAKE_STATIC_WINDOWS_BUILD
+     if (EXISTS
+-!!IF isEmpty(CMAKE_DLL_DIR_IS_ABSOLUTE)
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_DLL_DIR}$${CMAKE_LIB_FILE_LOCATION_RELEASE}\"
+-!!ELSE
+         \"$${CMAKE_LIB_FILE_LOCATION_RELEASE}\"
+-!!ENDIF
+       AND EXISTS
+-!!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-        \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_IMPLIB_FILE_LOCATION_RELEASE}\" )
+-!!ELSE
+         \"$${CMAKE_IMPLIB_FILE_LOCATION_RELEASE}\" )
+-!!ENDIF
+         _populate_$${CMAKE_MODULE_NAME}_target_properties(RELEASE \"$${CMAKE_LIB_FILE_LOCATION_RELEASE}\" \"$${CMAKE_IMPLIB_FILE_LOCATION_RELEASE}\" $${CMAKE_DEBUG_AND_RELEASE})
+ !!ENDIF // CMAKE_STATIC_WINDOWS_BUILD
+     endif()
+@@ -573,11 +505,7 @@ if (NOT TARGET Qt5::$${CMAKE_MODULE_NAME})
+           IsDebugAndRelease)
+         set_property(TARGET Qt5::${Plugin} APPEND PROPERTY IMPORTED_CONFIGURATIONS ${Configuration})
+ 
+-!!IF isEmpty(CMAKE_PLUGIN_DIR_IS_ABSOLUTE)
+-        set(imported_location \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$${CMAKE_PLUGIN_DIR}${PLUGIN_LOCATION}\")
+-!!ELSE
+         set(imported_location \"$${CMAKE_PLUGIN_DIR}${PLUGIN_LOCATION}\")
+-!!ENDIF
+         _qt5_$${CMAKE_MODULE_NAME}_check_file_exists(${imported_location})
+         set_target_properties(Qt5::${Plugin} PROPERTIES
+             \"IMPORTED_LOCATION_${Configuration}\" ${imported_location}
+diff --git a/mkspecs/features/qml_module.prf b/mkspecs/features/qml_module.prf
+index 3d6cd9b3db..ca8b0b2701 100644
+--- a/mkspecs/features/qml_module.prf
++++ b/mkspecs/features/qml_module.prf
+@@ -51,7 +51,7 @@ builtin_resources {
+ # Install rules
+ qmldir.base = $$qmldir_path
+ qmldir.files = $$qmldir_file
+-qmldir.path = $$[QT_INSTALL_QML]/$$TARGETPATH
++qmldir.path = $$NIX_OUTPUT_QML/$$TARGETPATH
+ 
+ qmlfiles.base = $$_PRO_FILE_PWD_
+ qmlfiles.files = $$fq_aux_qml_files
+diff --git a/mkspecs/features/qml_plugin.prf b/mkspecs/features/qml_plugin.prf
+index 1b67435787..24a1f78c17 100644
+--- a/mkspecs/features/qml_plugin.prf
++++ b/mkspecs/features/qml_plugin.prf
+@@ -50,7 +50,7 @@ load(qt_build_paths)
+ 
+ DESTDIR = $$MODULE_BASE_OUTDIR/qml/$$TARGETPATH
+ 
+-target.path = $$[QT_INSTALL_QML]/$$TARGETPATH
++target.path = $$NIX_OUTPUT_QML/$$TARGETPATH
+ INSTALLS += target
+ 
+ # Some final setup
+diff --git a/mkspecs/features/qt_app.prf b/mkspecs/features/qt_app.prf
+index 8354f30eea..62028fef8e 100644
+--- a/mkspecs/features/qt_app.prf
++++ b/mkspecs/features/qt_app.prf
+@@ -30,7 +30,7 @@ host_build:force_bootstrap {
+     target.path = $$[QT_HOST_BINS]
+ } else {
+     !build_pass:qtConfig(debug_and_release): CONFIG += release
+-    target.path = $$[QT_INSTALL_BINS]
++    target.path = $$NIX_OUTPUT_BIN/bin
+     CONFIG += relative_qt_rpath  # Qt's tools and apps should be relocatable
+ }
+ INSTALLS += target
+diff --git a/mkspecs/features/qt_build_paths.prf b/mkspecs/features/qt_build_paths.prf
+index 3bb3823a8e..655b7b7db8 100644
+--- a/mkspecs/features/qt_build_paths.prf
++++ b/mkspecs/features/qt_build_paths.prf
+@@ -24,6 +24,6 @@ exists($$MODULE_BASE_INDIR/.git): \
+ !force_independent {
+     # If the module is not built independently, everything ends up in qtbase.
+     # This is the case in non-prefix builds, except for selected modules.
+-    MODULE_BASE_OUTDIR = $$[QT_HOST_PREFIX]
+-    MODULE_QMAKE_OUTDIR = $$[QT_HOST_PREFIX]
++    MODULE_BASE_OUTDIR = $$NIX_OUTPUT_OUT
++    MODULE_QMAKE_OUTDIR = $$NIX_OUTPUT_OUT
+ }
+diff --git a/mkspecs/features/qt_docs.prf b/mkspecs/features/qt_docs.prf
+index 095bf15dac..4cc977bea5 100644
+--- a/mkspecs/features/qt_docs.prf
++++ b/mkspecs/features/qt_docs.prf
+@@ -65,7 +65,7 @@ QMAKE_DOCS_OUTPUTDIR = $$QMAKE_DOCS_BASE_OUTDIR/$$QMAKE_DOCS_TARGETDIR
+ 
+ QDOC += -outputdir $$shell_quote($$QMAKE_DOCS_OUTPUTDIR)
+ !build_online_docs: \
+-    QDOC += -installdir $$shell_quote($$[QT_INSTALL_DOCS])
++    QDOC += -installdir $$shell_quote($$NIX_OUTPUT_DOC)
+ PREP_DOC_INDEXES =
+ DOC_INDEXES =
+ !isEmpty(QTREPOS) {
+@@ -84,8 +84,8 @@ DOC_INDEXES =
+         DOC_INDEXES += -indexdir $$shell_quote($$qrep/doc)
+ } else {
+     prepare_docs: \
+-        PREP_DOC_INDEXES += -indexdir $$shell_quote($$[QT_INSTALL_DOCS/get])
+-    DOC_INDEXES += -indexdir $$shell_quote($$[QT_INSTALL_DOCS/get])
++        PREP_DOC_INDEXES += -indexdir $$shell_quote($$NIX_OUTPUT_DOC)
++    DOC_INDEXES += -indexdir $$shell_quote($$NIX_OUTPUT_DOC)
+ }
+ 
+ qtattributionsscanner.target = qtattributionsscanner
+@@ -108,12 +108,12 @@ prepare_docs {
+     qch_docs.commands = $$QHELPGENERATOR $$shell_quote($$QMAKE_DOCS_OUTPUTDIR/$${QMAKE_DOCS_TARGET}.qhp) -o $$shell_quote($$QMAKE_DOCS_BASE_OUTDIR/$${QMAKE_DOCS_TARGET}.qch)
+ 
+     inst_html_docs.files = $$QMAKE_DOCS_OUTPUTDIR
+-    inst_html_docs.path = $$[QT_INSTALL_DOCS]
++    inst_html_docs.path = $$NIX_OUTPUT_DOC
+     inst_html_docs.CONFIG += no_check_exist directory no_default_install no_build
+     INSTALLS += inst_html_docs
+ 
+     inst_qch_docs.files = $$QMAKE_DOCS_BASE_OUTDIR/$${QMAKE_DOCS_TARGET}.qch
+-    inst_qch_docs.path = $$[QT_INSTALL_DOCS]
++    inst_qch_docs.path = $$NIX_OUTPUT_DOC
+     inst_qch_docs.CONFIG += no_check_exist no_default_install no_build
+     INSTALLS += inst_qch_docs
+ 
+diff --git a/mkspecs/features/qt_example_installs.prf b/mkspecs/features/qt_example_installs.prf
+index 15b373ba40..5c373fe1d5 100644
+--- a/mkspecs/features/qt_example_installs.prf
++++ b/mkspecs/features/qt_example_installs.prf
+@@ -91,7 +91,7 @@ sourcefiles += \
+     $$SOURCES $$HEADERS $$FORMS $$RESOURCES $$TRANSLATIONS \
+     $$DBUS_ADAPTORS $$DBUS_INTERFACES
+ addInstallFiles(sources.files, $$sourcefiles)
+-sources.path = $$[QT_INSTALL_EXAMPLES]/$$probase
++sources.path = $$NIX_OUTPUT_DEV/share/examples/$$probase
+ INSTALLS += sources
+ 
+ check_examples {
+diff --git a/mkspecs/features/qt_functions.prf b/mkspecs/features/qt_functions.prf
+index 7777e615bd..b0c6880a74 100644
+--- a/mkspecs/features/qt_functions.prf
++++ b/mkspecs/features/qt_functions.prf
+@@ -87,19 +87,22 @@ defineTest(qtHaveModule) {
+ defineTest(qtPrepareTool) {
+     cmd = $$eval(QT_TOOL.$${2}.binary)
+     isEmpty(cmd) {
+-        cmd = $$[QT_HOST_BINS]/$$2
+-        exists($${cmd}.pl) {
+-            $${1}_EXE = $${cmd}.pl
+-            cmd = perl -w $$system_path($${cmd}.pl)
+-        } else: contains(QMAKE_HOST.os, Windows) {
+-            $${1}_EXE = $${cmd}.exe
+-            cmd = $$system_path($${cmd}.exe)
+-        } else:contains(QMAKE_HOST.os, Darwin) {
+-            BUNDLENAME = $${cmd}.app/Contents/MacOS/$$2
+-            exists($$BUNDLENAME) {
+-                cmd = $$BUNDLENAME
++        cmd = $$system("command -v $${2}")
++        isEmpty(cmd) {
++            cmd = $$system("command -v $${2}.pl")
++            !isEmpty(cmd) {
++                $${1}_EXE = $$cmd
++                cmd = perl -w $$system_path($${cmd})
++            } else: contains(QMAKE_HOST.os, Windows) {
++                cmd = $$system("command -v $${2}.exe")
++                $${1}_EXE = $$cmd
++            } else: contains(QMAKE_HOST.os, Darwin) {
++                cmd = $$system("command -v $${2}.app")
++                !isEmpty(cmd) {
++                    cmd = $${cmd}/Contents/MacOS/$${2}
++                    $${1}_EXE = $$cmd
++                }
+             }
+-            $${1}_EXE = $$cmd
+         } else {
+             $${1}_EXE = $$cmd
+         }
+diff --git a/mkspecs/features/qt_installs.prf b/mkspecs/features/qt_installs.prf
+index 1ebca17366..a8f958eae8 100644
+--- a/mkspecs/features/qt_installs.prf
++++ b/mkspecs/features/qt_installs.prf
+@@ -12,16 +12,10 @@
+ #library
+ !qt_no_install_library {
+     win32 {
+-       host_build: \
+-           dlltarget.path = $$[QT_HOST_BINS]
+-       else: \
+-           dlltarget.path = $$[QT_INSTALL_BINS]
++       dlltarget.path = $$NIX_OUTPUT_BIN/bin
+        INSTALLS += dlltarget
+     }
+-    host_build: \
+-        target.path = $$[QT_HOST_LIBS]
+-    else: \
+-        target.path = $$[QT_INSTALL_LIBS]
++    target.path = $$NIX_OUTPUT_OUT/lib
+     !static: target.CONFIG = no_dll
+     INSTALLS += target
+ }
+@@ -29,35 +23,35 @@
+ #headers
+ qt_install_headers {
+     gen_headers.files = $$SYNCQT.GENERATED_HEADER_FILES
+-    gen_headers.path = $$[QT_INSTALL_HEADERS]/$$MODULE_INCNAME
++    gen_headers.path = $$NIX_OUTPUT_DEV/include/$$MODULE_INCNAME
+     INSTALLS += gen_headers
+ 
+     targ_headers.files = $$SYNCQT.HEADER_FILES $$SYNCQT.INJECTED_HEADER_FILES
+-    targ_headers.path = $$[QT_INSTALL_HEADERS]/$$MODULE_INCNAME
++    targ_headers.path = $$NIX_OUTPUT_DEV/include/$$MODULE_INCNAME
+     INSTALLS += targ_headers
+ 
+     private_headers.files = $$SYNCQT.PRIVATE_HEADER_FILES $$SYNCQT.INJECTED_PRIVATE_HEADER_FILES
+-    private_headers.path = $$[QT_INSTALL_HEADERS]/$$MODULE_INCNAME/$$VERSION/$$MODULE_INCNAME/private
++    private_headers.path = $$NIX_OUTPUT_DEV/include/$$MODULE_INCNAME/$$VERSION/$$MODULE_INCNAME/private
+     generated_privates: \
+         private_headers.CONFIG += no_check_exist
+     INSTALLS += private_headers
+ 
+     qpa_headers.files = $$SYNCQT.QPA_HEADER_FILES
+-    qpa_headers.path = $$[QT_INSTALL_HEADERS]/$$MODULE_INCNAME/$$VERSION/$$MODULE_INCNAME/qpa
++    qpa_headers.path = $$NIX_OUTPUT_DEV/include/$$MODULE_INCNAME/$$VERSION/$$MODULE_INCNAME/qpa
+     INSTALLS += qpa_headers
+ }
+ 
+ #module
+ qt_install_module {
+     !isEmpty(MODULE_PRI) {
+-        pritarget.path = $$[QT_HOST_DATA]/mkspecs/modules
++        pritarget.path = $$NIX_OUTPUT_DEV/mkspecs/modules
+         pritarget.files = $$MODULE_PRI
+         INSTALLS += pritarget
+     } else: isEmpty(MODULE_PRIVATE_PRI) {
+         warning("Project $$basename(_PRO_FILE_) is a module, but has not defined MODULE_PRI, which is required for Qt to expose the module to other projects.")
+     }
+     !isEmpty(MODULE_PRIVATE_PRI) {
+-        privpritarget.path = $$[QT_HOST_DATA]/mkspecs/modules
++        privpritarget.path = $$NIX_OUTPUT_DEV/mkspecs/modules
+         privpritarget.files = $$MODULE_PRIVATE_PRI
+         INSTALLS += privpritarget
+     }
+diff --git a/mkspecs/features/qt_plugin.prf b/mkspecs/features/qt_plugin.prf
+index 573d717eea..024c624cb6 100644
+--- a/mkspecs/features/qt_plugin.prf
++++ b/mkspecs/features/qt_plugin.prf
+@@ -88,7 +88,7 @@ CONFIG(static, static|shared)|prefix_build {
+     }
+ }
+ 
+-target.path = $$[QT_INSTALL_PLUGINS]/$$PLUGIN_TYPE
++target.path = $$NIX_OUTPUT_PLUGIN/$$PLUGIN_TYPE
+ INSTALLS += target
+ 
+ qt_libinfix_plugins: TARGET = $$TARGET$$QT_LIBINFIX
+-- 
+2.29.3
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0004-qtbase-replace-libdir.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0004-qtbase-replace-libdir.patch
new file mode 100644
index 000000000000..bbfc93897873
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0004-qtbase-replace-libdir.patch
@@ -0,0 +1,68 @@
+From 30d3906ff5e8671e9c97c5336c6c549656c0e293 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Milan=20P=C3=A4ssler?= <me@pbb.lc>
+Date: Sat, 4 Apr 2020 00:27:41 +0200
+Subject: [PATCH 04/11] qtbase-replace-libdir
+
+---
+ mkspecs/features/qt_common.prf | 20 ++------------------
+ mkspecs/features/qt_module.prf |  5 +----
+ 2 files changed, 3 insertions(+), 22 deletions(-)
+
+diff --git a/mkspecs/features/qt_common.prf b/mkspecs/features/qt_common.prf
+index 8df94aa4ee..414029f31c 100644
+--- a/mkspecs/features/qt_common.prf
++++ b/mkspecs/features/qt_common.prf
+@@ -31,32 +31,16 @@ contains(TEMPLATE, .*lib)|contains(TEMPLATE, aux) {
+         rplbase = $$dirname(_QMAKE_SUPER_CACHE_)/[^/][^/]*
+     else: \
+         rplbase = $$MODULE_BASE_OUTDIR
+-    host_build {
+-        qqt_libdir = \$\$\$\$[QT_HOST_LIBS]
+-        qt_libdir = $$[QT_HOST_LIBS]
+-    } else {
+-        qqt_libdir = \$\$\$\$[QT_INSTALL_LIBS]
+-        qt_libdir = $$[QT_INSTALL_LIBS]
+-    }
++    qt_libdir = $$NIX_OUTPUT_OUT/lib
+     contains(QMAKE_DEFAULT_LIBDIRS, $$qt_libdir) {
+-        lib_replace0.match = $$rplbase/lib/
+-        lib_replace0.replace = $$qqt_libdir/
+-        lib_replace0.CONFIG = path
+-        QMAKE_PRL_INSTALL_REPLACE += lib_replace0
+         lib_replace.match = "[^ ']*$$rplbase/lib"
+         lib_replace.replace =
+     } else {
+         lib_replace.match = $$rplbase/lib
+-        lib_replace.replace = $$qqt_libdir
++        lib_replace.replace = $$qt_libdir
+     }
+     lib_replace.CONFIG = path
+     QMAKE_PRL_INSTALL_REPLACE += lib_replace
+-    !equals(qt_libdir, $$rplbase/lib) {
+-        qtlibdir_replace.match = $$qt_libdir
+-        qtlibdir_replace.replace = $$qqt_libdir
+-        qtlibdir_replace.CONFIG = path
+-        QMAKE_PRL_INSTALL_REPLACE += qtlibdir_replace
+-    }
+ }
+ contains(TEMPLATE, .*lib)|darwin {
+     if(!host_build|!cross_compile):qtConfig(reduce_exports): CONFIG += hide_symbols
+diff --git a/mkspecs/features/qt_module.prf b/mkspecs/features/qt_module.prf
+index 828a9621b9..b9e5d35026 100644
+--- a/mkspecs/features/qt_module.prf
++++ b/mkspecs/features/qt_module.prf
+@@ -305,10 +305,7 @@ load(qt_targets)
+ }
+ !lib_bundle:unix {
+     CONFIG += create_libtool
+-    host_build: \
+-        QMAKE_LIBTOOL_LIBDIR = $$[QT_HOST_LIBS]
+-    else: \
+-        QMAKE_LIBTOOL_LIBDIR = "=$$[QT_INSTALL_LIBS/raw]"
++    QMAKE_LIBTOOL_LIBDIR = $$NIX_OUTPUT_OUT/lib
+     !isEmpty(lib_replace0.match) {
+         ltlib_replace0.match = $$lib_replace0.match
+         ltlib_replace0.replace = $$QMAKE_LIBTOOL_LIBDIR/
+-- 
+2.25.4
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0005-qtbase-cmake.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0005-qtbase-cmake.patch
new file mode 100644
index 000000000000..19646df1666f
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0005-qtbase-cmake.patch
@@ -0,0 +1,194 @@
+From 7871fbcefc7596a458cec005edafd9d4962baea3 Mon Sep 17 00:00:00 2001
+From: Thomas Tuegel <ttuegel@mailbox.org>
+Date: Tue, 17 Sep 2019 05:34:28 -0500
+Subject: [PATCH 05/11] qtbase-cmake
+
+---
+ mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in  |  2 +-
+ mkspecs/features/data/cmake/Qt5PluginTarget.cmake.in |  4 ++--
+ src/corelib/Qt5CoreConfigExtras.cmake.in             | 10 +++++-----
+ src/corelib/Qt5CoreConfigExtrasMkspecDir.cmake.in    |  2 +-
+ .../Qt5CoreConfigExtrasMkspecDirForInstall.cmake.in  |  2 +-
+ src/dbus/Qt5DBusConfigExtras.cmake.in                | 12 ++----------
+ src/gui/Qt5GuiConfigExtras.cmake.in                  |  6 +++---
+ src/widgets/Qt5WidgetsConfigExtras.cmake.in          |  2 +-
+ 8 files changed, 16 insertions(+), 24 deletions(-)
+
+diff --git a/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in b/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in
+index b6c3ab8609..edb6a89316 100644
+--- a/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in
++++ b/mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in
+@@ -513,7 +513,7 @@ if (NOT TARGET Qt5::$${CMAKE_MODULE_NAME})
+           IsDebugAndRelease)
+         set_property(TARGET Qt5::${Plugin} APPEND PROPERTY IMPORTED_CONFIGURATIONS ${Configuration})
+ 
+-        set(imported_location \"$${CMAKE_PLUGIN_DIR}${PLUGIN_LOCATION}\")
++        set(imported_location \"${PLUGIN_LOCATION}\")
+         _qt5_$${CMAKE_MODULE_NAME}_check_file_exists(${imported_location})
+         set_target_properties(Qt5::${Plugin} PROPERTIES
+             \"IMPORTED_LOCATION_${Configuration}\" ${imported_location}
+diff --git a/mkspecs/features/data/cmake/Qt5PluginTarget.cmake.in b/mkspecs/features/data/cmake/Qt5PluginTarget.cmake.in
+index b550a52c60..dbd3243885 100644
+--- a/mkspecs/features/data/cmake/Qt5PluginTarget.cmake.in
++++ b/mkspecs/features/data/cmake/Qt5PluginTarget.cmake.in
+@@ -53,10 +53,10 @@ set_property(TARGET Qt5::$$CMAKE_PLUGIN_NAME PROPERTY INTERFACE_SOURCES
+ !!ENDIF
+ 
+ !!IF !isEmpty(CMAKE_RELEASE_TYPE)
+-_populate_$${CMAKE_MODULE_NAME}_plugin_properties($$CMAKE_PLUGIN_NAME RELEASE \"$${CMAKE_PLUGIN_LOCATION_RELEASE}\" $${CMAKE_DEBUG_AND_RELEASE})
++_populate_$${CMAKE_MODULE_NAME}_plugin_properties($$CMAKE_PLUGIN_NAME RELEASE \"$${CMAKE_PLUGIN_DIR}$${CMAKE_PLUGIN_LOCATION_RELEASE}\" $${CMAKE_DEBUG_AND_RELEASE})
+ !!ENDIF
+ !!IF !isEmpty(CMAKE_DEBUG_TYPE)
+-_populate_$${CMAKE_MODULE_NAME}_plugin_properties($$CMAKE_PLUGIN_NAME DEBUG \"$${CMAKE_PLUGIN_LOCATION_DEBUG}\" $${CMAKE_DEBUG_AND_RELEASE})
++_populate_$${CMAKE_MODULE_NAME}_plugin_properties($$CMAKE_PLUGIN_NAME DEBUG \"$${CMAKE_PLUGIN_DIR}$${CMAKE_PLUGIN_LOCATION_DEBUG}\" $${CMAKE_DEBUG_AND_RELEASE})
+ !!ENDIF
+ 
+ list(APPEND Qt5$${CMAKE_MODULE_NAME}_PLUGINS Qt5::$$CMAKE_PLUGIN_NAME)
+diff --git a/src/corelib/Qt5CoreConfigExtras.cmake.in b/src/corelib/Qt5CoreConfigExtras.cmake.in
+index 4c1c3a612b..bb8ab08143 100644
+--- a/src/corelib/Qt5CoreConfigExtras.cmake.in
++++ b/src/corelib/Qt5CoreConfigExtras.cmake.in
+@@ -6,7 +6,7 @@ if (NOT TARGET Qt5::qmake)
+     add_executable(Qt5::qmake IMPORTED)
+ 
+ !!IF isEmpty(CMAKE_BIN_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5Core_install_prefix}/$${CMAKE_BIN_DIR}qmake$$CMAKE_BIN_SUFFIX\")
++    set(imported_location \"$$NIX_OUTPUT_DEV/$${CMAKE_BIN_DIR}qmake$$CMAKE_BIN_SUFFIX\")
+ !!ELSE
+     set(imported_location \"$${CMAKE_BIN_DIR}qmake$$CMAKE_BIN_SUFFIX\")
+ !!ENDIF
+@@ -21,7 +21,7 @@ if (NOT TARGET Qt5::moc)
+     add_executable(Qt5::moc IMPORTED)
+ 
+ !!IF isEmpty(CMAKE_BIN_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5Core_install_prefix}/$${CMAKE_BIN_DIR}moc$$CMAKE_BIN_SUFFIX\")
++    set(imported_location \"$$NIX_OUTPUT_DEV/$${CMAKE_BIN_DIR}moc$$CMAKE_BIN_SUFFIX\")
+ !!ELSE
+     set(imported_location \"$${CMAKE_BIN_DIR}moc$$CMAKE_BIN_SUFFIX\")
+ !!ENDIF
+@@ -38,7 +38,7 @@ if (NOT TARGET Qt5::rcc)
+     add_executable(Qt5::rcc IMPORTED)
+ 
+ !!IF isEmpty(CMAKE_BIN_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5Core_install_prefix}/$${CMAKE_BIN_DIR}rcc$$CMAKE_BIN_SUFFIX\")
++    set(imported_location \"$$NIX_OUTPUT_DEV/$${CMAKE_BIN_DIR}rcc$$CMAKE_BIN_SUFFIX\")
+ !!ELSE
+     set(imported_location \"$${CMAKE_BIN_DIR}rcc$$CMAKE_BIN_SUFFIX\")
+ !!ENDIF
+@@ -121,7 +121,7 @@ if (NOT TARGET Qt5::WinMain)
+ !!IF !isEmpty(CMAKE_RELEASE_TYPE)
+     set_property(TARGET Qt5::WinMain APPEND PROPERTY IMPORTED_CONFIGURATIONS RELEASE)
+ !!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5Core_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_WINMAIN_FILE_LOCATION_RELEASE}\")
++    set(imported_location \"$$NIX_OUTPUT_DEV/$${CMAKE_LIB_DIR}$${CMAKE_WINMAIN_FILE_LOCATION_RELEASE}\")
+ !!ELSE
+     set(imported_location \"$${CMAKE_LIB_DIR}$${CMAKE_WINMAIN_FILE_LOCATION_RELEASE}\")
+ !!ENDIF
+@@ -135,7 +135,7 @@ if (NOT TARGET Qt5::WinMain)
+     set_property(TARGET Qt5::WinMain APPEND PROPERTY IMPORTED_CONFIGURATIONS DEBUG)
+ 
+ !!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5Core_install_prefix}/$${CMAKE_LIB_DIR}$${CMAKE_WINMAIN_FILE_LOCATION_DEBUG}\")
++    set(imported_location \"$$NIX_OUTPUT_DEV/$${CMAKE_LIB_DIR}$${CMAKE_WINMAIN_FILE_LOCATION_DEBUG}\")
+ !!ELSE
+     set(imported_location \"$${CMAKE_LIB_DIR}$${CMAKE_WINMAIN_FILE_LOCATION_DEBUG}\")
+ !!ENDIF
+diff --git a/src/corelib/Qt5CoreConfigExtrasMkspecDir.cmake.in b/src/corelib/Qt5CoreConfigExtrasMkspecDir.cmake.in
+index c357237d0e..6f0c75de3c 100644
+--- a/src/corelib/Qt5CoreConfigExtrasMkspecDir.cmake.in
++++ b/src/corelib/Qt5CoreConfigExtrasMkspecDir.cmake.in
+@@ -1,6 +1,6 @@
+ 
+ !!IF isEmpty(CMAKE_HOST_DATA_DIR_IS_ABSOLUTE)
+-set(_qt5_corelib_extra_includes \"${_qt5Core_install_prefix}/$${CMAKE_HOST_DATA_DIR}/mkspecs/$${CMAKE_MKSPEC}\")
++set(_qt5_corelib_extra_includes \"$$NIX_OUTPUT_DEV/$${CMAKE_HOST_DATA_DIR}/mkspecs/$${CMAKE_MKSPEC}\")
+ !!ELSE
+ set(_qt5_corelib_extra_includes \"$${CMAKE_HOST_DATA_DIR}mkspecs/$${CMAKE_MKSPEC}\")
+ !!ENDIF
+diff --git a/src/corelib/Qt5CoreConfigExtrasMkspecDirForInstall.cmake.in b/src/corelib/Qt5CoreConfigExtrasMkspecDirForInstall.cmake.in
+index 706304cf34..546420f6ad 100644
+--- a/src/corelib/Qt5CoreConfigExtrasMkspecDirForInstall.cmake.in
++++ b/src/corelib/Qt5CoreConfigExtrasMkspecDirForInstall.cmake.in
+@@ -1,6 +1,6 @@
+ 
+ !!IF isEmpty(CMAKE_INSTALL_DATA_DIR_IS_ABSOLUTE)
+-set(_qt5_corelib_extra_includes \"${_qt5Core_install_prefix}/$${CMAKE_INSTALL_DATA_DIR}/mkspecs/$${CMAKE_MKSPEC}\")
++set(_qt5_corelib_extra_includes \"$$NIX_OUTPUT_DEV/$${CMAKE_INSTALL_DATA_DIR}/mkspecs/$${CMAKE_MKSPEC}\")
+ !!ELSE
+ set(_qt5_corelib_extra_includes \"$${CMAKE_INSTALL_DATA_DIR}mkspecs/$${CMAKE_MKSPEC}\")
+ !!ENDIF
+diff --git a/src/dbus/Qt5DBusConfigExtras.cmake.in b/src/dbus/Qt5DBusConfigExtras.cmake.in
+index a814678f7b..b13b964ec8 100644
+--- a/src/dbus/Qt5DBusConfigExtras.cmake.in
++++ b/src/dbus/Qt5DBusConfigExtras.cmake.in
+@@ -2,11 +2,7 @@
+ if (NOT TARGET Qt5::qdbuscpp2xml)
+     add_executable(Qt5::qdbuscpp2xml IMPORTED)
+ 
+-!!IF isEmpty(CMAKE_BIN_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5DBus_install_prefix}/$${CMAKE_BIN_DIR}qdbuscpp2xml$$CMAKE_BIN_SUFFIX\")
+-!!ELSE
+-    set(imported_location \"$${CMAKE_BIN_DIR}qdbuscpp2xml$$CMAKE_BIN_SUFFIX\")
+-!!ENDIF
++    set(imported_location \"$$NIX_OUTPUT_DEV/bin/qdbuscpp2xml$$CMAKE_BIN_SUFFIX\")
+     _qt5_DBus_check_file_exists(${imported_location})
+ 
+     set_target_properties(Qt5::qdbuscpp2xml PROPERTIES
+@@ -17,11 +13,7 @@ endif()
+ if (NOT TARGET Qt5::qdbusxml2cpp)
+     add_executable(Qt5::qdbusxml2cpp IMPORTED)
+ 
+-!!IF isEmpty(CMAKE_BIN_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5DBus_install_prefix}/$${CMAKE_BIN_DIR}qdbusxml2cpp$$CMAKE_BIN_SUFFIX\")
+-!!ELSE
+-    set(imported_location \"$${CMAKE_BIN_DIR}qdbusxml2cpp$$CMAKE_BIN_SUFFIX\")
+-!!ENDIF
++    set(imported_location \"$$NIX_OUTPUT_DEV/bin/qdbusxml2cpp$$CMAKE_BIN_SUFFIX\")
+     _qt5_DBus_check_file_exists(${imported_location})
+ 
+     set_target_properties(Qt5::qdbusxml2cpp PROPERTIES
+diff --git a/src/gui/Qt5GuiConfigExtras.cmake.in b/src/gui/Qt5GuiConfigExtras.cmake.in
+index 84dbbfebd4..8ad0720c5c 100644
+--- a/src/gui/Qt5GuiConfigExtras.cmake.in
++++ b/src/gui/Qt5GuiConfigExtras.cmake.in
+@@ -2,7 +2,7 @@
+ !!IF !isEmpty(CMAKE_ANGLE_EGL_DLL_RELEASE)
+ 
+ !!IF isEmpty(CMAKE_INCLUDE_DIR_IS_ABSOLUTE)
+-set(Qt5Gui_EGL_INCLUDE_DIRS \"${_qt5$${CMAKE_MODULE_NAME}_install_prefix}/$$CMAKE_INCLUDE_DIR/QtANGLE\")
++set(Qt5Gui_EGL_INCLUDE_DIRS \"$$NIX_OUTPUT_DEV/$$CMAKE_INCLUDE_DIR/QtANGLE\")
+ !!ELSE
+ set(Qt5Gui_EGL_INCLUDE_DIRS \"$$CMAKE_INCLUDE_DIR/QtANGLE\")
+ !!ENDIF
+@@ -17,13 +17,13 @@ macro(_populate_qt5gui_gl_target_properties TargetName Configuration LIB_LOCATIO
+     set_property(TARGET Qt5::${TargetName} APPEND PROPERTY IMPORTED_CONFIGURATIONS ${Configuration})
+ 
+ !!IF isEmpty(CMAKE_DLL_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5Gui_install_prefix}/$${CMAKE_DLL_DIR}${LIB_LOCATION}\")
++    set(imported_location \"$$NIX_OUTPUT_OUT/$${CMAKE_DLL_DIR}${LIB_LOCATION}\")
+ !!ELSE
+     set(imported_location \"$${CMAKE_DLL_DIR}${LIB_LOCATION}\")
+ !!ENDIF
+ 
+ !!IF isEmpty(CMAKE_LIB_DIR_IS_ABSOLUTE)
+-    set(imported_implib \"${_qt5Gui_install_prefix}/$${CMAKE_LIB_DIR}${IMPLIB_LOCATION}\")
++    set(imported_implib \"$$NIX_OUTPUT_OUT/$${CMAKE_LIB_DIR}${IMPLIB_LOCATION}\")
+ !!ELSE
+     set(imported_implib \"$${CMAKE_LIB_DIR}${IMPLIB_LOCATION}\")
+ !!ENDIF
+diff --git a/src/widgets/Qt5WidgetsConfigExtras.cmake.in b/src/widgets/Qt5WidgetsConfigExtras.cmake.in
+index 83d8004a08..ca0b8e4bfb 100644
+--- a/src/widgets/Qt5WidgetsConfigExtras.cmake.in
++++ b/src/widgets/Qt5WidgetsConfigExtras.cmake.in
+@@ -3,7 +3,7 @@ if (NOT TARGET Qt5::uic)
+     add_executable(Qt5::uic IMPORTED)
+ 
+ !!IF isEmpty(CMAKE_BIN_DIR_IS_ABSOLUTE)
+-    set(imported_location \"${_qt5Widgets_install_prefix}/$${CMAKE_BIN_DIR}uic$$CMAKE_BIN_SUFFIX\")
++    set(imported_location \"$$NIX_OUTPUT_DEV/$${CMAKE_BIN_DIR}uic$$CMAKE_BIN_SUFFIX\")
+ !!ELSE
+     set(imported_location \"$${CMAKE_BIN_DIR}uic$$CMAKE_BIN_SUFFIX\")
+ !!ENDIF
+-- 
+2.25.4
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0006-qtbase-gtk3.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0006-qtbase-gtk3.patch
new file mode 100644
index 000000000000..48f4c9b3f99e
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0006-qtbase-gtk3.patch
@@ -0,0 +1,48 @@
+From 7a9f4f875053aed8ab387161eea623bf8325cfa8 Mon Sep 17 00:00:00 2001
+From: Thomas Tuegel <ttuegel@mailbox.org>
+Date: Tue, 17 Sep 2019 05:35:33 -0500
+Subject: [PATCH 06/11] qtbase-gtk3
+
+---
+ src/plugins/platformthemes/gtk3/main.cpp | 17 ++++++++++++++++-
+ 1 file changed, 16 insertions(+), 1 deletion(-)
+
+diff --git a/src/plugins/platformthemes/gtk3/main.cpp b/src/plugins/platformthemes/gtk3/main.cpp
+index 860fc3a26e..8cd4663d49 100644
+--- a/src/plugins/platformthemes/gtk3/main.cpp
++++ b/src/plugins/platformthemes/gtk3/main.cpp
+@@ -39,6 +39,7 @@
+ 
+ #include <qpa/qplatformthemeplugin.h>
+ #include "qgtk3theme.h"
++#include <QFile>
+ 
+ QT_BEGIN_NAMESPACE
+ 
+@@ -54,8 +55,22 @@ public:
+ QPlatformTheme *QGtk3ThemePlugin::create(const QString &key, const QStringList &params)
+ {
+     Q_UNUSED(params);
+-    if (!key.compare(QLatin1String(QGtk3Theme::name), Qt::CaseInsensitive))
++    if (!key.compare(QLatin1String(QGtk3Theme::name), Qt::CaseInsensitive)) {
++
++#ifdef NIXPKGS_QGTK3_XDG_DATA_DIRS
++        QStringList XDG_DATA_DIRS = QFile::decodeName(qgetenv("XDG_DATA_DIRS")).split(':');
++        XDG_DATA_DIRS << QLatin1String(NIXPKGS_QGTK3_XDG_DATA_DIRS);
++        qputenv("XDG_DATA_DIRS", QFile::encodeName(XDG_DATA_DIRS.join(':')));
++#endif
++
++#ifdef NIXPKGS_QGTK3_GIO_EXTRA_MODULES
++        QStringList GIO_EXTRA_MODULES = QFile::decodeName(qgetenv("GIO_EXTRA_MODULES")).split(':');
++        GIO_EXTRA_MODULES << QLatin1String(NIXPKGS_QGTK3_GIO_EXTRA_MODULES);
++        qputenv("GIO_EXTRA_MODULES", QFile::encodeName(GIO_EXTRA_MODULES.join(':')));
++#endif
++
+         return new QGtk3Theme;
++    }
+ 
+     return nullptr;
+ }
+-- 
+2.25.4
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0007-qtbase-xcursor.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0007-qtbase-xcursor.patch
new file mode 100644
index 000000000000..617b0684df65
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0007-qtbase-xcursor.patch
@@ -0,0 +1,29 @@
+From 707098eada20ba074e642a73248de74407bc261c Mon Sep 17 00:00:00 2001
+From: Thomas Tuegel <ttuegel@mailbox.org>
+Date: Tue, 17 Sep 2019 05:35:58 -0500
+Subject: [PATCH 07/11] qtbase-xcursor
+
+---
+ src/plugins/platforms/xcb/qxcbcursor.cpp | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/plugins/platforms/xcb/qxcbcursor.cpp b/src/plugins/platforms/xcb/qxcbcursor.cpp
+index 42c7a52bd4..ba670ddb44 100644
+--- a/src/plugins/platforms/xcb/qxcbcursor.cpp
++++ b/src/plugins/platforms/xcb/qxcbcursor.cpp
+@@ -317,10 +317,10 @@ QXcbCursor::QXcbCursor(QXcbConnection *conn, QXcbScreen *screen)
+ #if QT_CONFIG(xcb_xlib) && QT_CONFIG(library)
+     static bool function_ptrs_not_initialized = true;
+     if (function_ptrs_not_initialized) {
+-        QLibrary xcursorLib(QLatin1String("Xcursor"), 1);
++        QLibrary xcursorLib(QLatin1String(NIXPKGS_LIBXCURSOR), 1);
+         bool xcursorFound = xcursorLib.load();
+         if (!xcursorFound) { // try without the version number
+-            xcursorLib.setFileName(QLatin1String("Xcursor"));
++            xcursorLib.setFileName(QLatin1String(NIXPKGS_LIBXCURSOR));
+             xcursorFound = xcursorLib.load();
+         }
+         if (xcursorFound) {
+-- 
+2.25.4
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0008-qtbase-tzdir.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0008-qtbase-tzdir.patch
new file mode 100644
index 000000000000..319de315bfb7
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0008-qtbase-tzdir.patch
@@ -0,0 +1,64 @@
+From da003b582ee8823b29b1ff5c0aca8e06e7741b94 Mon Sep 17 00:00:00 2001
+From: Thomas Tuegel <ttuegel@mailbox.org>
+Date: Tue, 17 Sep 2019 05:36:25 -0500
+Subject: [PATCH 08/11] qtbase-tzdir
+
+---
+ src/corelib/time/qtimezoneprivate_tz.cpp | 31 +++++++++++++++---------
+ 1 file changed, 19 insertions(+), 12 deletions(-)
+
+diff --git a/src/corelib/time/qtimezoneprivate_tz.cpp b/src/corelib/time/qtimezoneprivate_tz.cpp
+index 01f9a6cce0..910338205a 100644
+--- a/src/corelib/time/qtimezoneprivate_tz.cpp
++++ b/src/corelib/time/qtimezoneprivate_tz.cpp
+@@ -77,7 +77,11 @@ typedef QHash<QByteArray, QTzTimeZone> QTzTimeZoneHash;
+ // Parse zone.tab table, assume lists all installed zones, if not will need to read directories
+ static QTzTimeZoneHash loadTzTimeZones()
+ {
+-    QString path = QStringLiteral("/usr/share/zoneinfo/zone.tab");
++    // Try TZDIR first, in case we're running on NixOS.
++    QString path = QFile::decodeName(qgetenv("TZDIR")) + QStringLiteral("/zone.tab");
++    // Fallback to traditional paths in case we are not on NixOS.
++    if (!QFile::exists(path))
++        path = QStringLiteral("/usr/share/zoneinfo/zone.tab");
+     if (!QFile::exists(path))
+         path = QStringLiteral("/usr/lib/zoneinfo/zone.tab");
+ 
+@@ -672,20 +676,23 @@ QTzTimeZoneCacheEntry QTzTimeZoneCache::findEntry(const QByteArray &ianaId)
+         if (!tzif.open(QIODevice::ReadOnly))
+             return ret;
+     } else {
+-        // Open named tz, try modern path first, if fails try legacy path
+-        tzif.setFileName(QLatin1String("/usr/share/zoneinfo/") + QString::fromLocal8Bit(ianaId));
++        // Try TZDIR first, in case we're running on NixOS
++        tzif.setFileName(QFile::decodeName(qgetenv("TZDIR")) + QStringLiteral("/") + QString::fromLocal8Bit(ianaId));
+         if (!tzif.open(QIODevice::ReadOnly)) {
+-            tzif.setFileName(QLatin1String("/usr/lib/zoneinfo/") + QString::fromLocal8Bit(ianaId));
++            tzif.setFileName(QLatin1String("/usr/share/zoneinfo/") + QString::fromLocal8Bit(ianaId));
+             if (!tzif.open(QIODevice::ReadOnly)) {
+-                // ianaId may be a POSIX rule, taken from $TZ or /etc/TZ
+-                const QByteArray zoneInfo = ianaId.split(',').at(0);
+-                const char *begin = zoneInfo.constBegin();
+-                if (PosixZone::parse(begin, zoneInfo.constEnd()).hasValidOffset()
+-                    && (begin == zoneInfo.constEnd()
+-                        || PosixZone::parse(begin, zoneInfo.constEnd()).hasValidOffset())) {
+-                    ret.m_posixRule = ianaId;
++                tzif.setFileName(QLatin1String("/usr/lib/zoneinfo/") + QString::fromLocal8Bit(ianaId));
++                if (!tzif.open(QIODevice::ReadOnly)) {
++                    // ianaId may be a POSIX rule, taken from $TZ or /etc/TZ
++                    const QByteArray zoneInfo = ianaId.split(',').at(0);
++                    const char *begin = zoneInfo.constBegin();
++                    if (PosixZone::parse(begin, zoneInfo.constEnd()).hasValidOffset()
++                        && (begin == zoneInfo.constEnd()
++                            || PosixZone::parse(begin, zoneInfo.constEnd()).hasValidOffset())) {
++                        ret.m_posixRule = ianaId;
++                    }
++                    return ret;
+                 }
+-                return ret;
+             }
+         }
+     }
+-- 
+2.25.4
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0009-qtbase-qtpluginpath.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0009-qtbase-qtpluginpath.patch
new file mode 100644
index 000000000000..28013ec10482
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0009-qtbase-qtpluginpath.patch
@@ -0,0 +1,33 @@
+From 9fc6efaf774a8716932c98c0b0ea6408ed2614c2 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Milan=20P=C3=A4ssler?= <me@pbb.lc>
+Date: Sun, 10 May 2020 12:47:28 +0200
+Subject: [PATCH 09/11] qtbase-qtpluginpath
+
+---
+ src/corelib/kernel/qcoreapplication.cpp | 10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+diff --git a/src/corelib/kernel/qcoreapplication.cpp b/src/corelib/kernel/qcoreapplication.cpp
+index 5fdcc9b914..1a126ef359 100644
+--- a/src/corelib/kernel/qcoreapplication.cpp
++++ b/src/corelib/kernel/qcoreapplication.cpp
+@@ -2691,6 +2691,16 @@ QStringList QCoreApplication::libraryPathsLocked()
+         QStringList *app_libpaths = new QStringList;
+         coreappdata()->app_libpaths.reset(app_libpaths);
+ 
++        // Add library paths derived from PATH
++        const QStringList paths = QFile::decodeName(qgetenv("PATH")).split(':');
++        const QString plugindir = QStringLiteral("../" NIXPKGS_QT_PLUGIN_PREFIX);
++        for (const QString &path: paths) {
++            if (!path.isEmpty()) {
++                app_libpaths->append(QDir::cleanPath(path + QDir::separator() + plugindir));
++            }
++        }
++
++
+         auto setPathsFromEnv = [&](QString libPathEnv) {
+             if (!libPathEnv.isEmpty()) {
+                 QStringList paths = libPathEnv.split(QDir::listSeparator(), Qt::SkipEmptyParts);
+-- 
+2.25.4
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0010-qtbase-assert.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0010-qtbase-assert.patch
new file mode 100644
index 000000000000..c5b099c4ca35
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0010-qtbase-assert.patch
@@ -0,0 +1,32 @@
+From 015845b3c320d02691f28373097d1e6dbbac79f7 Mon Sep 17 00:00:00 2001
+From: Thomas Tuegel <ttuegel@mailbox.org>
+Date: Tue, 17 Sep 2019 05:37:04 -0500
+Subject: [PATCH 10/11] qtbase-assert
+
+---
+ src/testlib/qtestassert.h | 7 +++++--
+ 1 file changed, 5 insertions(+), 2 deletions(-)
+
+diff --git a/src/testlib/qtestassert.h b/src/testlib/qtestassert.h
+index 6498ea84ef..d821ced7fc 100644
+--- a/src/testlib/qtestassert.h
++++ b/src/testlib/qtestassert.h
+@@ -44,10 +44,13 @@
+ 
+ QT_BEGIN_NAMESPACE
+ 
+-
++#if defined(QT_NO_DEBUG) && !defined(QT_FORCE_ASSERTS)
++#define QTEST_ASSERT(cond) do { } while ((false) && (cond))
++#define QTEST_ASSERT_X(cond, where, what) do { } while ((false) && (cond))
++#else
+ #define QTEST_ASSERT(cond) do { if (!(cond)) qt_assert(#cond,__FILE__,__LINE__); } while (false)
+-
+ #define QTEST_ASSERT_X(cond, where, what) do { if (!(cond)) qt_assert_x(where, what,__FILE__,__LINE__); } while (false)
++#endif
+ 
+ QT_END_NAMESPACE
+ 
+-- 
+2.25.4
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0011-fix-header_module.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0011-fix-header_module.patch
new file mode 100644
index 000000000000..98738656114d
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0011-fix-header_module.patch
@@ -0,0 +1,25 @@
+From 2bce8511877db1db532e1437e7140b1d55633f86 Mon Sep 17 00:00:00 2001
+From: Will Dietz <w@wdtz.org>
+Date: Mon, 30 Sep 2019 20:15:40 -0500
+Subject: [PATCH 11/11] fix header_module
+
+---
+ mkspecs/features/qt_module.prf | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/mkspecs/features/qt_module.prf b/mkspecs/features/qt_module.prf
+index b9e5d35026..9924271042 100644
+--- a/mkspecs/features/qt_module.prf
++++ b/mkspecs/features/qt_module.prf
+@@ -84,7 +84,7 @@ header_module {
+         CONFIG  += qt_no_install_library
+ 
+     # Allow creation of .prl, .la and .pc files.
+-    target.path = $$[QT_INSTALL_LIBS]
++    target.path = $$NIX_OUTPUT_OUT/lib
+     target.CONFIG += dummy_install
+     INSTALLS    += target
+ } else {
+-- 
+2.25.4
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0012-qtbase-tbd-frameworks.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0012-qtbase-tbd-frameworks.patch
new file mode 100644
index 000000000000..8a5939978a6b
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0012-qtbase-tbd-frameworks.patch
@@ -0,0 +1,15 @@
+diff --git a/src/gui/Qt5GuiConfigExtras.cmake.in b/src/gui/Qt5GuiConfigExtras.cmake.in
+index 84dbbfebd4..615bfed124 100644
+--- a/src/gui/Qt5GuiConfigExtras.cmake.in
++++ b/src/gui/Qt5GuiConfigExtras.cmake.in
+@@ -119,6 +119,10 @@ macro(_qt5gui_find_extra_libs Name Libs LibDir IncDirs)
+             if (NOT EXISTS "${Qt5Gui_${_cmake_lib_name}_LIBRARY}")
+                 set(Qt5Gui_${_cmake_lib_name}_LIBRARY)
+             endif()
++            set(Qt5Gui_${_cmake_lib_name}_LIBRARY "${Qt5Gui_${_cmake_lib_name}_LIBRARY}/${_lib}.tbd")
++            if (NOT EXISTS "${Qt5Gui_${_cmake_lib_name}_LIBRARY}")
++                set(Qt5Gui_${_cmake_lib_name}_LIBRARY)
++            endif()
+ !!ENDIF
+             if (NOT Qt5Gui_${_cmake_lib_name}_LIBRARY)
+                 # The above find_library call doesn\'t work for finding
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0013-define-kiosurfacesuccess.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0013-define-kiosurfacesuccess.patch
new file mode 100644
index 000000000000..a43a46d8a69b
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/0013-define-kiosurfacesuccess.patch
@@ -0,0 +1,16 @@
+diff --git a/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.mm b/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.mm
+index a367487e..c3aeca1d 100644
+--- a/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.mm
++++ b/src/plugins/platforms/cocoa/qiosurfacegraphicsbuffer.mm
+@@ -49,6 +49,11 @@
+ // but was only added in the 10.14 SDK, so declare it just in case.
+ extern "C" CFPropertyListRef CGColorSpaceCopyPropertyList(CGColorSpaceRef space);
+ 
++// Introduced in 10.13: http://codeworkshop.net/objc-diff/sdkdiffs/macos/10.13/IOSurface.html
++#if !defined(kIOSurfaceSuccess)
++#define kIOSurfaceSuccess KERN_SUCCESS
++#endif
++
+ QT_BEGIN_NAMESPACE
+ 
+ Q_LOGGING_CATEGORY(lcQpaIOSurface, "qt.qpa.backingstore.iosurface");
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0001-Revert-QCocoaDrag-set-image-only-on-the-first-drag-i.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0001-Revert-QCocoaDrag-set-image-only-on-the-first-drag-i.patch
new file mode 100644
index 000000000000..de75ecbd0c17
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0001-Revert-QCocoaDrag-set-image-only-on-the-first-drag-i.patch
@@ -0,0 +1,47 @@
+From f156c35975e7844d2369ec5a6633ee40ec56f17a Mon Sep 17 00:00:00 2001
+From: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
+Date: Mon, 7 Dec 2020 12:32:29 -0500
+Subject: [PATCH 1/6] Revert "QCocoaDrag - set image only on the first drag
+ item"
+
+This reverts commit 7ee9bfc158a290776f622f62d0202220c6d159bc.
+---
+ src/plugins/platforms/cocoa/qcocoadrag.mm | 9 ++-------
+ 1 file changed, 2 insertions(+), 7 deletions(-)
+
+diff --git a/src/plugins/platforms/cocoa/qcocoadrag.mm b/src/plugins/platforms/cocoa/qcocoadrag.mm
+index 4bd1b129bd..a506126c72 100644
+--- a/src/plugins/platforms/cocoa/qcocoadrag.mm
++++ b/src/plugins/platforms/cocoa/qcocoadrag.mm
+@@ -217,18 +217,13 @@ bool QCocoaDrag::maybeDragMultipleItems()
+     // 0. We start from URLs, which can be actually in a list (thus technically
+     // only ONE item in the pasteboard. The fact it's only one does not help, we are
+     // still getting an exception because of the number of items/images mismatch ...
+-    // We only set the image for the first item and nil for the rest, the image already
+-    // contains a combined picture for all urls we drag.
+-    auto imageOrNil = dragImage;
+     for (const auto &qtUrl : qtUrls) {
+         NSURL *nsUrl = qtUrl.toNSURL();
+         auto *newItem = [[[NSDraggingItem alloc] initWithPasteboardWriter:nsUrl] autorelease];
+         const NSRect itemFrame = NSMakeRect(itemLocation.x, itemLocation.y,
+                                             dragImage.size.width,
+                                             dragImage.size.height);
+-
+-        [newItem setDraggingFrame:itemFrame contents:imageOrNil];
+-        imageOrNil = nil;
++        [newItem setDraggingFrame:itemFrame contents:dragImage];
+         [dragItems addObject:newItem];
+     }
+     // 1. Repeat for non-url items, if any:
+@@ -237,7 +232,7 @@ bool QCocoaDrag::maybeDragMultipleItems()
+         const NSRect itemFrame = NSMakeRect(itemLocation.x, itemLocation.y,
+                                             dragImage.size.width,
+                                             dragImage.size.height);
+-        [newItem setDraggingFrame:itemFrame contents:imageOrNil];
++        [newItem setDraggingFrame:itemFrame contents:dragImage];
+         [dragItems addObject:newItem];
+     }
+ 
+-- 
+2.21.0
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0002-Revert-QCocoaDrag-drag-make-sure-clipboard-is-ours-a.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0002-Revert-QCocoaDrag-drag-make-sure-clipboard-is-ours-a.patch
new file mode 100644
index 000000000000..ee3a2d9f5a4d
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0002-Revert-QCocoaDrag-drag-make-sure-clipboard-is-ours-a.patch
@@ -0,0 +1,40 @@
+From 9aaac67e3c3bf40ef3efc3b07b1655f72c8c54aa Mon Sep 17 00:00:00 2001
+From: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
+Date: Mon, 7 Dec 2020 12:32:31 -0500
+Subject: [PATCH 2/6] Revert "QCocoaDrag::drag - make sure clipboard is ours
+ and populated"
+
+This reverts commit 720e2e0c92ca6635c5f05f318770a70cf653c1c7.
+---
+ src/plugins/platforms/cocoa/qcocoadrag.mm | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/src/plugins/platforms/cocoa/qcocoadrag.mm b/src/plugins/platforms/cocoa/qcocoadrag.mm
+index a506126c72..c6ee4323ce 100644
+--- a/src/plugins/platforms/cocoa/qcocoadrag.mm
++++ b/src/plugins/platforms/cocoa/qcocoadrag.mm
+@@ -131,10 +131,6 @@ Qt::DropAction QCocoaDrag::drag(QDrag *o)
+     m_drag = o;
+     m_executed_drop_action = Qt::IgnoreAction;
+ 
+-    QMacPasteboard dragBoard(CFStringRef(NSPasteboardNameDrag), QMacInternalPasteboardMime::MIME_DND);
+-    m_drag->mimeData()->setData(QLatin1String("application/x-qt-mime-type-name"), QByteArray("dummy"));
+-    dragBoard.setMimeData(m_drag->mimeData(), QMacPasteboard::LazyRequest);
+-
+     if (maybeDragMultipleItems())
+         return m_executed_drop_action;
+ 
+@@ -143,6 +139,10 @@ Qt::DropAction QCocoaDrag::drag(QDrag *o)
+     NSImage *dragImage = [NSImage imageFromQImage:pm.toImage()];
+     Q_ASSERT(dragImage);
+ 
++    QMacPasteboard dragBoard(CFStringRef(NSPasteboardNameDrag), QMacInternalPasteboardMime::MIME_DND);
++    m_drag->mimeData()->setData(QLatin1String("application/x-qt-mime-type-name"), QByteArray("dummy"));
++    dragBoard.setMimeData(m_drag->mimeData(), QMacPasteboard::LazyRequest);
++
+     NSPoint event_location = [m_lastEvent locationInWindow];
+     NSWindow *theWindow = [m_lastEvent window];
+     Q_ASSERT(theWindow);
+-- 
+2.21.0
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0003-Revert-QCocoaDrag-maybeDragMultipleItems-fix-erroneo.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0003-Revert-QCocoaDrag-maybeDragMultipleItems-fix-erroneo.patch
new file mode 100644
index 000000000000..55211fca64c7
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0003-Revert-QCocoaDrag-maybeDragMultipleItems-fix-erroneo.patch
@@ -0,0 +1,27 @@
+From d1626c55d10537274c6f365855342a1c619a4c3a Mon Sep 17 00:00:00 2001
+From: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
+Date: Mon, 7 Dec 2020 12:32:32 -0500
+Subject: [PATCH 3/6] Revert "QCocoaDrag::maybeDragMultipleItems - fix
+ erroneous size check"
+
+This reverts commit b8a03411784803c07ecc1f769860756d6fdc04cd.
+---
+ src/plugins/platforms/cocoa/qcocoadrag.mm | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/plugins/platforms/cocoa/qcocoadrag.mm b/src/plugins/platforms/cocoa/qcocoadrag.mm
+index c6ee4323ce..ab6863a432 100644
+--- a/src/plugins/platforms/cocoa/qcocoadrag.mm
++++ b/src/plugins/platforms/cocoa/qcocoadrag.mm
+@@ -187,7 +187,7 @@ bool QCocoaDrag::maybeDragMultipleItems()
+     const auto &qtUrls = m_drag->mimeData()->urls();
+     NSPasteboard *dragBoard = [NSPasteboard pasteboardWithName:NSPasteboardNameDrag];
+ 
+-    if (qtUrls.size() <= 1) {
++    if (int(dragBoard.pasteboardItems.count) == 1 && qtUrls.size() <= 1) {
+         // Good old -dragImage: works perfectly for this ...
+         return false;
+     }
+-- 
+2.21.0
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0004-Revert-QCocoaDrag-avoid-using-the-deprecated-API-if-.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0004-Revert-QCocoaDrag-avoid-using-the-deprecated-API-if-.patch
new file mode 100644
index 000000000000..7b568a91943f
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0004-Revert-QCocoaDrag-avoid-using-the-deprecated-API-if-.patch
@@ -0,0 +1,192 @@
+From d5c155a9f3ff38e28ac073f6df43175724ebc290 Mon Sep 17 00:00:00 2001
+From: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
+Date: Mon, 7 Dec 2020 12:32:34 -0500
+Subject: [PATCH 4/6] Revert "QCocoaDrag - avoid using the deprecated API if
+ possible"
+
+This reverts commit 8481a9fc974a1f1dd44a9f82decb18fe2290689f.
+---
+ src/plugins/platforms/cocoa/qcocoadrag.h      |  6 --
+ src/plugins/platforms/cocoa/qcocoadrag.mm     | 90 -------------------
+ .../platforms/cocoa/qnsview_dragging.mm       |  9 +-
+ 3 files changed, 1 insertion(+), 104 deletions(-)
+
+diff --git a/src/plugins/platforms/cocoa/qcocoadrag.h b/src/plugins/platforms/cocoa/qcocoadrag.h
+index 975741c270..5a5b985c6e 100644
+--- a/src/plugins/platforms/cocoa/qcocoadrag.h
++++ b/src/plugins/platforms/cocoa/qcocoadrag.h
+@@ -48,8 +48,6 @@
+ #include <QtGui/private/qdnd_p.h>
+ #include <QtGui/private/qinternalmimedata_p.h>
+ 
+-#include <QtCore/qeventloop.h>
+-
+ QT_BEGIN_NAMESPACE
+ 
+ class QCocoaDrag : public QPlatformDrag
+@@ -71,15 +69,11 @@ public:
+     void setLastMouseEvent(NSEvent *event, NSView *view);
+ 
+     void setAcceptedAction(Qt::DropAction act);
+-    void exitDragLoop();
+ private:
+     QDrag *m_drag;
+     NSEvent *m_lastEvent;
+     NSView *m_lastView;
+     Qt::DropAction m_executed_drop_action;
+-    QEventLoop internalDragLoop;
+-
+-    bool maybeDragMultipleItems();
+ 
+     QPixmap dragPixmap(QDrag *drag, QPoint &hotSpot) const;
+ };
+diff --git a/src/plugins/platforms/cocoa/qcocoadrag.mm b/src/plugins/platforms/cocoa/qcocoadrag.mm
+index ab6863a432..b4a16ab912 100644
+--- a/src/plugins/platforms/cocoa/qcocoadrag.mm
++++ b/src/plugins/platforms/cocoa/qcocoadrag.mm
+@@ -44,9 +44,6 @@
+ #include <QtWidgets/qwidget.h>
+ #endif
+ #include <QtGui/private/qcoregraphics_p.h>
+-#include <QtCore/qsysinfo.h>
+-
+-#include <vector>
+ 
+ QT_BEGIN_NAMESPACE
+ 
+@@ -131,9 +128,6 @@ Qt::DropAction QCocoaDrag::drag(QDrag *o)
+     m_drag = o;
+     m_executed_drop_action = Qt::IgnoreAction;
+ 
+-    if (maybeDragMultipleItems())
+-        return m_executed_drop_action;
+-
+     QPoint hotSpot = m_drag->hotSpot();
+     QPixmap pm = dragPixmap(m_drag, hotSpot);
+     NSImage *dragImage = [NSImage imageFromQImage:pm.toImage()];
+@@ -164,95 +158,11 @@ Qt::DropAction QCocoaDrag::drag(QDrag *o)
+     return m_executed_drop_action;
+ }
+ 
+-bool QCocoaDrag::maybeDragMultipleItems()
+-{
+-    Q_ASSERT(m_drag && m_drag->mimeData());
+-    Q_ASSERT(m_executed_drop_action == Qt::IgnoreAction);
+-
+-    if (QOperatingSystemVersion::current() < QOperatingSystemVersion::MacOSMojave) {
+-        // -dragImage: stopped working in 10.14 first.
+-        return false;
+-    }
+-
+-    const QMacAutoReleasePool pool;
+-
+-    NSWindow *theWindow = [m_lastEvent window];
+-    Q_ASSERT(theWindow);
+-
+-    if (![theWindow.contentView respondsToSelector:@selector(draggingSession:sourceOperationMaskForDraggingContext:)])
+-        return false;
+-
+-    auto *sourceView = static_cast<NSView<NSDraggingSource>*>(theWindow.contentView);
+-
+-    const auto &qtUrls = m_drag->mimeData()->urls();
+-    NSPasteboard *dragBoard = [NSPasteboard pasteboardWithName:NSPasteboardNameDrag];
+-
+-    if (int(dragBoard.pasteboardItems.count) == 1 && qtUrls.size() <= 1) {
+-        // Good old -dragImage: works perfectly for this ...
+-        return false;
+-    }
+-
+-    std::vector<NSPasteboardItem *> nonUrls;
+-    for (NSPasteboardItem *item in dragBoard.pasteboardItems) {
+-        bool isUrl = false;
+-        for (NSPasteboardType type in item.types) {
+-            using NSStringRef = NSString *;
+-            if ([type isEqualToString:NSStringRef(kUTTypeFileURL)]) {
+-                isUrl = true;
+-                break;
+-            }
+-        }
+-
+-        if (!isUrl)
+-            nonUrls.push_back(item);
+-    }
+-
+-    QPoint hotSpot = m_drag->hotSpot();
+-    const auto pixmap = dragPixmap(m_drag, hotSpot);
+-    NSImage *dragImage = [NSImage imageFromQImage:pixmap.toImage()];
+-    Q_ASSERT(dragImage);
+-
+-    NSMutableArray<NSDraggingItem *> *dragItems = [[[NSMutableArray alloc] init] autorelease];
+-    const NSPoint itemLocation = m_drag->hotSpot().toCGPoint();
+-    // 0. We start from URLs, which can be actually in a list (thus technically
+-    // only ONE item in the pasteboard. The fact it's only one does not help, we are
+-    // still getting an exception because of the number of items/images mismatch ...
+-    for (const auto &qtUrl : qtUrls) {
+-        NSURL *nsUrl = qtUrl.toNSURL();
+-        auto *newItem = [[[NSDraggingItem alloc] initWithPasteboardWriter:nsUrl] autorelease];
+-        const NSRect itemFrame = NSMakeRect(itemLocation.x, itemLocation.y,
+-                                            dragImage.size.width,
+-                                            dragImage.size.height);
+-        [newItem setDraggingFrame:itemFrame contents:dragImage];
+-        [dragItems addObject:newItem];
+-    }
+-    // 1. Repeat for non-url items, if any:
+-    for (auto *pbItem : nonUrls) {
+-        auto *newItem = [[[NSDraggingItem alloc] initWithPasteboardWriter:pbItem] autorelease];
+-        const NSRect itemFrame = NSMakeRect(itemLocation.x, itemLocation.y,
+-                                            dragImage.size.width,
+-                                            dragImage.size.height);
+-        [newItem setDraggingFrame:itemFrame contents:dragImage];
+-        [dragItems addObject:newItem];
+-    }
+-
+-    [sourceView beginDraggingSessionWithItems:dragItems event:m_lastEvent source:sourceView];
+-    internalDragLoop.exec();
+-    return true;
+-}
+-
+ void QCocoaDrag::setAcceptedAction(Qt::DropAction act)
+ {
+     m_executed_drop_action = act;
+ }
+ 
+-void QCocoaDrag::exitDragLoop()
+-{
+-    if (internalDragLoop.isRunning())
+-        internalDragLoop.exit();
+-}
+-
+-
+ QPixmap QCocoaDrag::dragPixmap(QDrag *drag, QPoint &hotSpot) const
+ {
+     const QMimeData* data = drag->mimeData();
+diff --git a/src/plugins/platforms/cocoa/qnsview_dragging.mm b/src/plugins/platforms/cocoa/qnsview_dragging.mm
+index 978d73f7d9..463e3c5579 100644
+--- a/src/plugins/platforms/cocoa/qnsview_dragging.mm
++++ b/src/plugins/platforms/cocoa/qnsview_dragging.mm
+@@ -232,10 +232,6 @@ static QPoint mapWindowCoordinates(QWindow *source, QWindow *target, QPoint poin
+     if (!target)
+         return;
+ 
+-    auto *nativeDrag = QCocoaIntegration::instance()->drag();
+-    Q_ASSERT(nativeDrag);
+-    nativeDrag->exitDragLoop();
+-
+     QPoint windowPoint = QPointF::fromCGPoint([self convertPoint:sender.draggingLocation fromView:nil]).toPoint();
+ 
+     qCDebug(lcQpaMouse) << QEvent::DragLeave << self << "at" << windowPoint;
+@@ -294,10 +290,7 @@ static QPoint mapWindowCoordinates(QWindow *source, QWindow *target, QPoint poin
+     if (!target)
+         return;
+ 
+-    QCocoaDrag* nativeDrag = QCocoaIntegration::instance()->drag();
+-    Q_ASSERT(nativeDrag);
+-    nativeDrag->exitDragLoop();
+-    nativeDrag->setAcceptedAction(qt_mac_mapNSDragOperation(operation));
++    QCocoaIntegration::instance()->drag();
+ 
+     // Qt starts drag-and-drop on a mouse button press event. Cococa in
+     // this case won't send the matching release event, so we have to
+-- 
+2.21.0
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0005-Revert-macOS-Fix-use-of-deprecated-NSOffState.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0005-Revert-macOS-Fix-use-of-deprecated-NSOffState.patch
new file mode 100644
index 000000000000..f93f80055982
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0005-Revert-macOS-Fix-use-of-deprecated-NSOffState.patch
@@ -0,0 +1,26 @@
+From e55ca5d08b29e67b699dc217abcb65e4a7655f72 Mon Sep 17 00:00:00 2001
+From: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
+Date: Mon, 7 Dec 2020 12:32:37 -0500
+Subject: [PATCH 5/6] Revert "macOS: Fix use of deprecated NSOffState"
+
+This reverts commit 6a0995525d306a1fa224adcbcb9f0ae1fc7d01bd.
+---
+ src/plugins/styles/mac/qmacstyle_mac.mm | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/plugins/styles/mac/qmacstyle_mac.mm b/src/plugins/styles/mac/qmacstyle_mac.mm
+index d1febd81d4..b5e6e60ec0 100644
+--- a/src/plugins/styles/mac/qmacstyle_mac.mm
++++ b/src/plugins/styles/mac/qmacstyle_mac.mm
+@@ -3955,7 +3955,7 @@ void QMacStyle::drawControl(ControlElement ce, const QStyleOption *opt, QPainter
+                     pbCell = static_cast<NSPopUpButtonCell *>(pb.cell);
+                     oldPosition = pbCell.arrowPosition;
+                     pbCell.arrowPosition = NSPopUpNoArrow;
+-                    if (pb.state == NSControlStateValueOff) {
++                    if (pb.state == NSOffState) {
+                         // NSPopUpButton in this state is smaller.
+                         rAdjusted.origin.x -= 3;
+                         rAdjusted.size.width += 6;
+-- 
+2.21.0
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0006-git-checkout-v5.15.0-src-plugins-platforms-cocoa-qco.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0006-git-checkout-v5.15.0-src-plugins-platforms-cocoa-qco.patch
new file mode 100644
index 000000000000..b5c634aff76b
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/macos-sdk-10.12/0006-git-checkout-v5.15.0-src-plugins-platforms-cocoa-qco.patch
@@ -0,0 +1,77 @@
+From 3ce5e752c66307f905fdf732b102a396d9248fbb Mon Sep 17 00:00:00 2001
+From: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
+Date: Mon, 7 Dec 2020 13:22:02 -0500
+Subject: [PATCH 6/6] git checkout v5.15.0 --
+ src/plugins/platforms/cocoa/qcocoacolordialoghelper.mm
+
+---
+ .../cocoa/qcocoacolordialoghelper.mm          | 50 +++++++++----------
+ 1 file changed, 25 insertions(+), 25 deletions(-)
+
+diff --git a/src/plugins/platforms/cocoa/qcocoacolordialoghelper.mm b/src/plugins/platforms/cocoa/qcocoacolordialoghelper.mm
+index 5ad1f9d7bb..c9fa035d87 100644
+--- a/src/plugins/platforms/cocoa/qcocoacolordialoghelper.mm
++++ b/src/plugins/platforms/cocoa/qcocoacolordialoghelper.mm
+@@ -180,34 +180,34 @@ QT_NAMESPACE_ALIAS_OBJC_CLASS(QNSColorPanelDelegate);
+ 
+ - (void)updateQtColor
+ {
+-    // Discard the color space and pass the color components to QColor. This
+-    // is a good option as long as QColor is color-unmanaged: we preserve the
+-    // exact RGB value from the color picker, which is predictable. Further,
+-    // painting with the color will reproduce the same color on-screen, as
+-    // long as the the same screen is used for selecting the color.
+-    NSColor *componentColor = [[mColorPanel color] colorUsingType:NSColorTypeComponentBased];
+-    switch (componentColor.colorSpace.colorSpaceModel)
+-    {
+-    case NSColorSpaceModelGray: {
+-        CGFloat white = 0, alpha = 0;
+-        [componentColor getWhite:&white alpha:&alpha];
+-        mQtColor.setRgbF(white, white, white, alpha);
+-    } break;
+-    case NSColorSpaceModelRGB: {
+-        CGFloat red = 0, green = 0, blue = 0, alpha = 0;
+-        [componentColor getRed:&red green:&green blue:&blue alpha:&alpha];
+-        mQtColor.setRgbF(red, green, blue, alpha);
+-    } break;
+-    case NSColorSpaceModelCMYK: {
++    NSColor *color = [mColorPanel color];
++    NSString *colorSpaceName = [color colorSpaceName];
++    if (colorSpaceName == NSDeviceCMYKColorSpace) {
+         CGFloat cyan = 0, magenta = 0, yellow = 0, black = 0, alpha = 0;
+-        [componentColor getCyan:&cyan magenta:&magenta yellow:&yellow black:&black alpha:&alpha];
++        [color getCyan:&cyan magenta:&magenta yellow:&yellow black:&black alpha:&alpha];
+         mQtColor.setCmykF(cyan, magenta, yellow, black, alpha);
+-    } break;
+-    default:
+-        qWarning("QNSColorPanelDelegate: Unsupported color space model");
+-    break;
++    } else if (colorSpaceName == NSCalibratedRGBColorSpace || colorSpaceName == NSDeviceRGBColorSpace)  {
++        CGFloat red = 0, green = 0, blue = 0, alpha = 0;
++        [color getRed:&red green:&green blue:&blue alpha:&alpha];
++        mQtColor.setRgbF(red, green, blue, alpha);
++    } else if (colorSpaceName == NSNamedColorSpace) {
++        NSColor *tmpColor = [color colorUsingColorSpaceName:NSCalibratedRGBColorSpace];
++        CGFloat red = 0, green = 0, blue = 0, alpha = 0;
++        [tmpColor getRed:&red green:&green blue:&blue alpha:&alpha];
++        mQtColor.setRgbF(red, green, blue, alpha);
++    } else {
++        NSColorSpace *colorSpace = [color colorSpace];
++        if ([colorSpace colorSpaceModel] == NSCMYKColorSpaceModel && [color numberOfComponents] == 5){
++            CGFloat components[5];
++            [color getComponents:components];
++            mQtColor.setCmykF(components[0], components[1], components[2], components[3], components[4]);
++        } else {
++            NSColor *tmpColor = [color colorUsingColorSpaceName:NSCalibratedRGBColorSpace];
++            CGFloat red = 0, green = 0, blue = 0, alpha = 0;
++            [tmpColor getRed:&red green:&green blue:&blue alpha:&alpha];
++            mQtColor.setRgbF(red, green, blue, alpha);
++        }
+     }
+-
+     if (mHelper)
+         emit mHelper->currentColorChanged(mQtColor);
+ }
+-- 
+2.21.0
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/qtbase-sdk-10.12-mac.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/qtbase-sdk-10.12-mac.patch
new file mode 100644
index 000000000000..3638268de7af
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtbase.patch.d/qtbase-sdk-10.12-mac.patch
@@ -0,0 +1,77 @@
+diff --git a/mkspecs/common/macx.conf b/mkspecs/common/macx.conf
+--- a/mkspecs/common/macx.conf
++++ b/mkspecs/common/macx.conf
+@@ -10,7 +10,7 @@ QMAKE_APPLE_DEVICE_ARCHS = x86_64
+ 
+ # Should be 10.15, but as long as the CI builds with
+ # older SDKs we have to keep this.
+-QT_MAC_SDK_VERSION_MIN = 10.14
++QT_MAC_SDK_VERSION_MIN = 10.12
+ 
+ QT_MAC_SDK_VERSION_MAX = 10.15
+ 
+diff --git a/src/corelib/kernel/qcore_mac.mm b/src/corelib/kernel/qcore_mac.mm
+--- a/src/corelib/kernel/qcore_mac.mm
++++ b/src/corelib/kernel/qcore_mac.mm
+@@ -261,16 +261,10 @@ QMacAutoReleasePool::QMacAutoReleasePool()
+ 
+ #ifdef QT_DEBUG
+     void *poolFrame = nullptr;
+-    if (__builtin_available(macOS 10.14, iOS 12.0, tvOS 12.0, watchOS 5.0, *)) {
+-        void *frame;
+-        if (backtrace_from_fp(__builtin_frame_address(0), &frame, 1))
+-            poolFrame = frame;
+-    } else {
+         static const int maxFrames = 3;
+         void *callstack[maxFrames];
+         if (backtrace(callstack, maxFrames) == maxFrames)
+             poolFrame = callstack[maxFrames - 1];
+-    }
+ 
+     if (poolFrame) {
+         Dl_info info;
+diff --git a/src/gui/rhi/qrhi.cpp b/src/gui/rhi/qrhi.cpp
+--- a/src/gui/rhi/qrhi.cpp
++++ b/src/gui/rhi/qrhi.cpp
+@@ -4251,7 +4251,7 @@ QRhi *QRhi::create(Implementation impl, QRhiInitParams *params, Flags flags, QRh
+         break;
+ #endif
+     case Metal:
+-#if defined(Q_OS_MACOS) || defined(Q_OS_IOS)
++#if 0
+         r->d = new QRhiMetal(static_cast<QRhiMetalInitParams *>(params),
+                              static_cast<QRhiMetalNativeHandles *>(importDevice));
+         break;
+diff --git a/src/gui/rhi/rhi.pri b/src/gui/rhi/rhi.pri
+--- a/src/gui/rhi/rhi.pri
++++ b/src/gui/rhi/rhi.pri
+@@ -43,7 +43,7 @@ win32 {
+     LIBS += -ld3d11 -ldxgi -ldxguid
+ }
+ 
+-macos|ios {
++false {
+     HEADERS += \
+         rhi/qrhimetal_p.h \
+         rhi/qrhimetal_p_p.h
+diff --git a/src/plugins/platforms/cocoa/qcocoadrag.mm b/src/plugins/platforms/cocoa/qcocoadrag.mm
+--- a/src/plugins/platforms/cocoa/qcocoadrag.mm
++++ b/src/plugins/platforms/cocoa/qcocoadrag.mm
+@@ -133,7 +133,7 @@ Qt::DropAction QCocoaDrag::drag(QDrag *o)
+     NSImage *dragImage = [NSImage imageFromQImage:pm.toImage()];
+     Q_ASSERT(dragImage);
+ 
+-    QMacPasteboard dragBoard(CFStringRef(NSPasteboardNameDrag), QMacInternalPasteboardMime::MIME_DND);
++    QMacPasteboard dragBoard((CFStringRef) NSDragPboard, QMacInternalPasteboardMime::MIME_DND);
+     m_drag->mimeData()->setData(QLatin1String("application/x-qt-mime-type-name"), QByteArray("dummy"));
+     dragBoard.setMimeData(m_drag->mimeData(), QMacPasteboard::LazyRequest);
+ 
+@@ -144,7 +144,7 @@ Qt::DropAction QCocoaDrag::drag(QDrag *o)
+     CGFloat flippedY = dragImage.size.height - hotSpot.y();
+     event_location.y -= flippedY;
+     NSSize mouseOffset_unused = NSMakeSize(0.0, 0.0);
+-    NSPasteboard *pboard = [NSPasteboard pasteboardWithName:NSPasteboardNameDrag];
++    NSPasteboard *pboard = [NSPasteboard pasteboardWithName:NSDragPboard];
+ 
+     [theWindow dragImage:dragImage
+         at:event_location
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtdeclarative.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtdeclarative.patch
new file mode 100644
index 000000000000..d9c721e6946c
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtdeclarative.patch
@@ -0,0 +1,114 @@
+diff --git a/src/particles/particles.pro b/src/particles/particles.pro
+index aaaa83419a..58aee00036 100644
+--- a/src/particles/particles.pro
++++ b/src/particles/particles.pro
+@@ -20,6 +20,6 @@ QMLTYPES_FILENAME = plugins.qmltypes
+ QMLTYPES_INSTALL_DIR = $$[QT_INSTALL_QML]/QtQuick/Particles.2
+ QML_IMPORT_NAME = QtQuick.Particles
+ IMPORT_VERSION = 2.$$QT_MINOR_VERSION
+-CONFIG += qmltypes install_qmltypes install_metatypes
++CONFIG += qmltypes install_qmltypes
+ 
+ load(qt_module)
+diff --git a/src/qml/qml.pro b/src/qml/qml.pro
+index e39a8319b6..90c0331278 100644
+--- a/src/qml/qml.pro
++++ b/src/qml/qml.pro
+@@ -72,6 +72,6 @@ QMLTYPES_FILENAME = plugins.qmltypes
+ QMLTYPES_INSTALL_DIR = $$[QT_INSTALL_QML]/QtQml
+ QML_IMPORT_NAME = QtQml
+ IMPORT_VERSION = 2.$$QT_MINOR_VERSION
+-CONFIG += qmltypes install_qmltypes install_metatypes
++CONFIG += qmltypes install_qmltypes
+ 
+ load(qt_module)
+diff --git a/src/qmlmodels/qmlmodels.pro b/src/qmlmodels/qmlmodels.pro
+index 4ac093556d..112e2c2be0 100644
+--- a/src/qmlmodels/qmlmodels.pro
++++ b/src/qmlmodels/qmlmodels.pro
+@@ -68,6 +68,6 @@ QMLTYPES_FILENAME = plugins.qmltypes
+ QMLTYPES_INSTALL_DIR = $$[QT_INSTALL_QML]/QtQml/Models.2
+ QML_IMPORT_NAME = QtQml.Models
+ IMPORT_VERSION = 2.$$QT_MINOR_VERSION
+-CONFIG += qmltypes install_qmltypes install_metatypes
++CONFIG += qmltypes install_qmltypes
+ 
+ load(qt_module)
+diff --git a/src/qmltest/qmltest.pro b/src/qmltest/qmltest.pro
+index c2e8068fc6..79dba368f7 100644
+--- a/src/qmltest/qmltest.pro
++++ b/src/qmltest/qmltest.pro
+@@ -34,7 +34,7 @@ QMLTYPES_FILENAME = plugins.qmltypes
+ QMLTYPES_INSTALL_DIR = $$[QT_INSTALL_QML]/Qt/test/qtestroot
+ QML_IMPORT_NAME = Qt.test.qtestroot
+ QML_IMPORT_VERSION = 1.0
+-CONFIG += qmltypes install_qmltypes install_metatypes
++CONFIG += qmltypes install_qmltypes
+ 
+ # Install qmldir
+ qmldir.files = $$PWD/qmldir
+diff --git a/src/qmlworkerscript/qmlworkerscript.pro b/src/qmlworkerscript/qmlworkerscript.pro
+index 84466062e1..79885455cc 100644
+--- a/src/qmlworkerscript/qmlworkerscript.pro
++++ b/src/qmlworkerscript/qmlworkerscript.pro
+@@ -23,6 +23,6 @@ QMLTYPES_FILENAME = plugins.qmltypes
+ QMLTYPES_INSTALL_DIR = $$[QT_INSTALL_QML]/QtQml/WorkerScript.2
+ QML_IMPORT_NAME = QtQml.WorkerScript
+ IMPORT_VERSION = 2.$$QT_MINOR_VERSION
+-CONFIG += qmltypes install_qmltypes install_metatypes
++CONFIG += qmltypes install_qmltypes
+ 
+ load(qt_module)
+diff --git a/src/quick/quick.pro b/src/quick/quick.pro
+index f2d49cf939..c401b04c4e 100644
+--- a/src/quick/quick.pro
++++ b/src/quick/quick.pro
+@@ -52,4 +52,4 @@ QMLTYPES_FILENAME = plugins.qmltypes
+ QMLTYPES_INSTALL_DIR = $$[QT_INSTALL_QML]/QtQuick.2
+ QML_IMPORT_NAME = QtQuick
+ IMPORT_VERSION = 2.$$QT_MINOR_VERSION
+-CONFIG += qmltypes install_qmltypes install_metatypes
++CONFIG += qmltypes install_qmltypes
+diff --git a/src/quickshapes/quickshapes.pro b/src/quickshapes/quickshapes.pro
+index 4dbd3e5e46..0c6b186fc8 100644
+--- a/src/quickshapes/quickshapes.pro
++++ b/src/quickshapes/quickshapes.pro
+@@ -36,4 +36,4 @@ QMLTYPES_FILENAME = plugins.qmltypes
+ QMLTYPES_INSTALL_DIR = $$[QT_INSTALL_QML]/QtQuick/Shapes
+ QML_IMPORT_NAME = QtQuick.Shapes
+ IMPORT_VERSION = 1.$$QT_MINOR_VERSION
+-CONFIG += qmltypes install_qmltypes install_metatypes
++CONFIG += qmltypes install_qmltypes
+diff --git a/src/qml/qml/qqmlimport.cpp b/src/qml/qml/qqmlimport.cpp
+index 005db4248..685c5b1b2 100644
+--- a/src/qml/qml/qqmlimport.cpp
++++ b/src/qml/qml/qqmlimport.cpp
+@@ -1760,6 +1760,15 @@ QQmlImportDatabase::QQmlImportDatabase(QQmlEngine *e)
+     QString installImportsPath =  QLibraryInfo::location(QLibraryInfo::Qml2ImportsPath);
+     addImportPath(installImportsPath);
+ 
++    // Add import paths derived from PATH
++    const QStringList paths = QFile::decodeName(qgetenv("PATH")).split(':');
++    const QString qmldir = QStringLiteral("../" NIXPKGS_QML2_IMPORT_PREFIX);
++    for (const QString &path: paths) {
++        if (!path.isEmpty()) {
++            addImportPath(QDir::cleanPath(path + QDir::separator() + qmldir));
++        }
++    }
++
+     // env import paths
+     if (Q_UNLIKELY(!qEnvironmentVariableIsEmpty("QML2_IMPORT_PATH"))) {
+         const QString envImportPath = qEnvironmentVariable("QML2_IMPORT_PATH");
+diff --git a/tools/qmlcachegen/qmlcache.prf b/tools/qmlcachegen/qmlcache.prf
+index 537eaf62ea..e21de58f64 100644
+--- a/tools/qmlcachegen/qmlcache.prf
++++ b/tools/qmlcachegen/qmlcache.prf
+@@ -26,7 +26,7 @@ defineReplace(qmlCacheOutputFileName) {
+ }
+ 
+ qmlcacheinst.base = $$QMLCACHE_DESTDIR
+-qmlcacheinst.path = $$[QT_INSTALL_QML]/$$TARGETPATH
++qmlcacheinst.path = $$NIX_OUTPUT_QML/$$TARGETPATH
+ qmlcacheinst.CONFIG = no_check_exist
+ 
+ qmlcachegen.input = CACHEGEN_FILES
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtscript.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtscript.patch
new file mode 100644
index 000000000000..5508dec1280e
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtscript.patch
@@ -0,0 +1,13 @@
+diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/wtf/Threading.h b/src/3rdparty/javascriptcore/JavaScriptCore/wtf/Threading.h
+index 1f6d25e..087c3fb 100644
+--- a/src/3rdparty/javascriptcore/JavaScriptCore/wtf/Threading.h
++++ b/src/3rdparty/javascriptcore/JavaScriptCore/wtf/Threading.h
+@@ -81,7 +81,7 @@
+ #include <pthread.h>
+ #elif PLATFORM(GTK)
+ #include <wtf/gtk/GOwnPtr.h>
+-typedef struct _GMutex GMutex;
++typedef union _GMutex GMutex;
+ typedef struct _GCond GCond;
+ #endif
+ 
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtserialport.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtserialport.patch
new file mode 100644
index 000000000000..f25524e80bcf
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtserialport.patch
@@ -0,0 +1,22 @@
+diff --git a/src/serialport/qtudev_p.h b/src/serialport/qtudev_p.h
+index af2dab2..8e17f64 100644
+--- a/src/serialport/qtudev_p.h
++++ b/src/serialport/qtudev_p.h
+@@ -111,9 +111,17 @@ inline QFunctionPointer resolveSymbol(QLibrary *udevLibrary, const char *symbolN
+ inline bool resolveSymbols(QLibrary *udevLibrary)
+ {
+     if (!udevLibrary->isLoaded()) {
++#ifdef NIXPKGS_LIBUDEV
++        udevLibrary->setFileNameAndVersion(QLatin1String(NIXPKGS_LIBUDEV), 1);
++#else
+         udevLibrary->setFileNameAndVersion(QStringLiteral("udev"), 1);
++#endif
+         if (!udevLibrary->load()) {
++#ifdef NIXPKGS_LIBUDEV
++            udevLibrary->setFileNameAndVersion(QLatin1String(NIXPKGS_LIBUDEV), 0);
++#else
+             udevLibrary->setFileNameAndVersion(QStringLiteral("udev"), 0);
++#endif
+             if (!udevLibrary->load()) {
+                 qWarning("Failed to load the library: %s, supported version(s): %i and %i", qPrintable(udevLibrary->fileName()), 1, 0);
+                 return false;
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qttools.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qttools.patch
new file mode 100644
index 000000000000..8ae12198ca25
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qttools.patch
@@ -0,0 +1,15 @@
+--- a/src/macdeployqt/shared/shared.cpp
++++ b/src/macdeployqt/shared/shared.cpp
+@@ -1241,6 +1241,12 @@ bool deployQmlImports(const QString &appBundlePath, DeploymentInfo deploymentInf
+     if (!QFile(qmlImportScannerPath).exists())
+         qmlImportScannerPath = QCoreApplication::applicationDirPath() + "/qmlimportscanner";
+ 
++#ifdef NIXPKGS_QMLIMPORTSCANNER
++    // Fallback: Nixpkgs hardcoded path
++    if (!QFile(qmlImportScannerPath).exists())
++        qmlImportScannerPath = NIXPKGS_QMLIMPORTSCANNER;
++#endif
++
+     // Verify that we found a qmlimportscanner binary
+     if (!QFile(qmlImportScannerPath).exists()) {
+         LogError() << "qmlimportscanner not found at" << qmlImportScannerPath;
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebengine-darwin-no-platform-check.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebengine-darwin-no-platform-check.patch
new file mode 100644
index 000000000000..44df09299251
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebengine-darwin-no-platform-check.patch
@@ -0,0 +1,37 @@
+diff a/configure.pri b/configure.pri
+--- a/configure.pri
++++ b/configure.pri
+@@ -439,8 +439,6 @@ defineTest(qtwebengine_isWindowsPlatformSupported) {
+ 
+ defineTest(qtwebengine_isMacOsPlatformSupported) {
+     !qtwebengine_isMinXcodeVersion(10, 0, 0) {
+-        qtwebengine_platformError("requires at least version 10.0.0, but using Xcode version $${QMAKE_XCODE_VERSION}.")
+-        return(false)
+     }
+     !clang|intel_icc {
+         qtwebengine_platformError("requires Clang.")
+@@ -449,12 +447,6 @@ defineTest(qtwebengine_isMacOsPlatformSupported) {
+     # We require macOS 10.13 (darwin version 17.0.0) or newer.
+     darwin_major_version = $$section(QMAKE_HOST.version, ., 0, 0)
+     lessThan(darwin_major_version, 17) {
+-        qtwebengine_platformError("requires macOS version 10.13 or newer.")
+-        return(false)
+-    }
+-    !qtwebengine_isMinOSXSDKVersion(10, 13): {
+-        qtwebengine_platformError("requires a macOS SDK version of 10.13 or newer. Current version is $${WEBENGINE_OSX_SDK_PRODUCT_VERSION}.")
+-        return(false)
+     }
+     return(true)
+ }
+diff a/src/buildtools/config/mac_osx.pri b/src/buildtools/config/mac_osx.pri
+--- a/src/buildtools/config/mac_osx.pri
++++ b/src/buildtools/config/mac_osx.pri
+@@ -5,8 +5,6 @@ load(functions)
+ # otherwise query for it.
+ QMAKE_MAC_SDK_VERSION = $$eval(QMAKE_MAC_SDK.$${QMAKE_MAC_SDK}.SDKVersion)
+ isEmpty(QMAKE_MAC_SDK_VERSION) {
+-     QMAKE_MAC_SDK_VERSION = $$system("/usr/bin/xcodebuild -sdk $${QMAKE_MAC_SDK} -version SDKVersion 2>/dev/null")
+-     isEmpty(QMAKE_MAC_SDK_VERSION): error("Could not resolve SDK version for \'$${QMAKE_MAC_SDK}\'")
+ }
+ 
+ # chromium/build/mac/find_sdk.py expects the SDK version (mac_sdk_min) in Major.Minor format.
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebengine-mac-dont-set-dsymutil-path.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebengine-mac-dont-set-dsymutil-path.patch
new file mode 100644
index 000000000000..dcdf5f57ffdc
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebengine-mac-dont-set-dsymutil-path.patch
@@ -0,0 +1,12 @@
+diff a/src/3rdparty/chromium/build/toolchain/mac/BUILD.gn b/src/3rdparty/chromium/build/toolchain/mac/BUILD.gn
+--- a/src/3rdparty/chromium/build/toolchain/mac/BUILD.gn
++++ b/src/3rdparty/chromium/build/toolchain/mac/BUILD.gn
+@@ -184,8 +184,6 @@ template("mac_toolchain") {
+     # If dSYMs are enabled, this flag will be added to the link tools.
+     if (_enable_dsyms) {
+       dsym_switch = " -Wcrl,dsym,{{root_out_dir}} "
+-      dsym_switch += "-Wcrl,dsymutilpath," +
+-                     "${prefix}dsymutil" + " "
+ 
+       dsym_output_dir =
+           "{{root_out_dir}}/{{target_output_name}}{{output_extension}}.dSYM"
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebkit-darwin-no-qos-classes.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebkit-darwin-no-qos-classes.patch
new file mode 100644
index 000000000000..a7087f517623
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebkit-darwin-no-qos-classes.patch
@@ -0,0 +1,11 @@
+diff --git a/Source/cmake/OptionsQt.cmake b/Source/cmake/OptionsQt.cmake
+--- a/Source/cmake/OptionsQt.cmake
++++ b/Source/cmake/OptionsQt.cmake
+@@ -683,7 +683,6 @@ if (WIN32 AND COMPILER_IS_GCC_OR_CLANG)
+ endif ()
+ 
+ if (APPLE)
+-    SET_AND_EXPOSE_TO_BUILD(HAVE_QOS_CLASSES 1)
+ endif ()
+ 
+ if (ENABLE_MATHML)
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebkit-darwin-no-readline.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebkit-darwin-no-readline.patch
new file mode 100644
index 000000000000..4871032f6f2c
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebkit-darwin-no-readline.patch
@@ -0,0 +1,30 @@
+diff --git a/Source/JavaScriptCore/shell/CMakeLists.txt b/Source/JavaScriptCore/shell/CMakeLists.txt
+--- a/Source/JavaScriptCore/shell/CMakeLists.txt
++++ b/Source/JavaScriptCore/shell/CMakeLists.txt
+@@ -9,7 +9,6 @@ set(JSC_LIBRARIES
+ )
+ 
+ if (WTF_OS_MAC_OS_X)
+-    list(APPEND JSC_LIBRARIES edit)
+ endif ()
+ 
+ if ("${JavaScriptCore_LIBRARY_TYPE}" MATCHES "STATIC")
+diff --git a/Source/WTF/wtf/Platform.h b/Source/WTF/wtf/Platform.h
+--- a/Source/WTF/wtf/Platform.h
++++ b/Source/WTF/wtf/Platform.h
+@@ -563,7 +563,6 @@
+ #if PLATFORM(IOS)
+ 
+ #define HAVE_NETWORK_EXTENSION 1
+-#define HAVE_READLINE 1
+ #if USE(APPLE_INTERNAL_SDK)
+ #define USE_CFNETWORK 1
+ #endif
+@@ -650,7 +649,6 @@
+ #define HAVE_MADV_DONTNEED 1
+ #define HAVE_MERGESORT 1
+ #define HAVE_PTHREAD_SETNAME_NP 1
+-#define HAVE_READLINE 1
+ #define HAVE_SYS_TIMEB_H 1
+ 
+ #if !PLATFORM(GTK) && !PLATFORM(QT)
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebkit-icu68.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebkit-icu68.patch
new file mode 100644
index 000000000000..73463d7567a3
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebkit-icu68.patch
@@ -0,0 +1,170 @@
+Regressed by https://github.com/unicode-org/icu/commit/c3fe7e09d844
+
+In file included from Source/WebCore/platform/text/TextAllInOne.cpp:31:
+Source/WebCore/platform/text/TextCodecICU.cpp:311:42: error: use of undeclared identifier 'TRUE'
+        ucnv_setFallback(m_converterICU, TRUE);
+                                         ^
+In file included from Source/WebCore/platform/text/TextAllInOne.cpp:40:
+In file included from Source/WebCore/platform/text/icu/UTextProvider.cpp:27:
+Source/WebCore/platform/text/icu/UTextProvider.h:83:28: error: use of undeclared identifier 'TRUE'
+            isAccessible = TRUE;
+                           ^
+Source/WebCore/platform/text/icu/UTextProvider.h:88:28: error: use of undeclared identifier 'FALSE'
+            isAccessible = FALSE;
+                           ^
+Source/WebCore/platform/text/icu/UTextProvider.h:97:28: error: use of undeclared identifier 'TRUE'
+            isAccessible = TRUE;
+                           ^
+Source/WebCore/platform/text/icu/UTextProvider.h:102:28: error: use of undeclared identifier 'FALSE'
+            isAccessible = FALSE;
+                           ^
+In file included from Source/WebCore/platform/text/TextAllInOne.cpp:41:
+Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp:103:20: error: use of undeclared identifier 'TRUE'
+            return TRUE;
+                   ^
+Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp:108:20: error: use of undeclared identifier 'FALSE'
+            return FALSE;
+                   ^
+Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp:114:20: error: use of undeclared identifier 'TRUE'
+            return TRUE;
+                   ^
+Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp:119:20: error: use of undeclared identifier 'FALSE'
+            return FALSE;
+                   ^
+Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp:147:12: error: use of undeclared identifier 'TRUE'
+    return TRUE;
+           ^
+Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp:339:16: error: use of undeclared identifier 'FALSE'
+        return FALSE;
+               ^
+Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp:359:12: error: use of undeclared identifier 'TRUE'
+    return TRUE;
+           ^
+In file included from Source/WebCore/platform/text/TextAllInOne.cpp:42:
+Source/WebCore/platform/text/icu/UTextProviderUTF16.cpp:128:16: error: use of undeclared identifier 'FALSE'
+        return FALSE;
+               ^
+Source/WebCore/platform/text/icu/UTextProviderUTF16.cpp:148:12: error: use of undeclared identifier 'TRUE'
+    return TRUE;
+           ^
+
+--- a/Source/WebCore/platform/text/TextCodecICU.cpp
++++ b/Source/WebCore/platform/text/TextCodecICU.cpp
+@@ -308,7 +308,7 @@ void TextCodecICU::createICUConverter() const
+     m_converterICU = ucnv_open(m_canonicalConverterName, &err);
+     ASSERT(U_SUCCESS(err));
+     if (m_converterICU)
+-        ucnv_setFallback(m_converterICU, TRUE);
++        ucnv_setFallback(m_converterICU, true);
+ }
+ 
+ int TextCodecICU::decodeToBuffer(UChar* target, UChar* targetLimit, const char*& source, const char* sourceLimit, int32_t* offsets, bool flush, UErrorCode& err)
+--- a/Source/WebCore/platform/text/icu/UTextProvider.h
++++ b/Source/WebCore/platform/text/icu/UTextProvider.h
+@@ -80,12 +80,12 @@ inline bool uTextAccessInChunkOrOutOfRange(UText* text
+             // Ensure chunk offset is well formed if computed offset exceeds int32_t range.
+             ASSERT(offset < std::numeric_limits<int32_t>::max());
+             text->chunkOffset = offset < std::numeric_limits<int32_t>::max() ? static_cast<int32_t>(offset) : 0;
+-            isAccessible = TRUE;
++            isAccessible = true;
+             return true;
+         }
+         if (nativeIndex >= nativeLength && text->chunkNativeLimit == nativeLength) {
+             text->chunkOffset = text->chunkLength;
+-            isAccessible = FALSE;
++            isAccessible = false;
+             return true;
+         }
+     } else {
+@@ -94,12 +94,12 @@ inline bool uTextAccessInChunkOrOutOfRange(UText* text
+             // Ensure chunk offset is well formed if computed offset exceeds int32_t range.
+             ASSERT(offset < std::numeric_limits<int32_t>::max());
+             text->chunkOffset = offset < std::numeric_limits<int32_t>::max() ? static_cast<int32_t>(offset) : 0;
+-            isAccessible = TRUE;
++            isAccessible = true;
+             return true;
+         }
+         if (nativeIndex <= 0 && !text->chunkNativeStart) {
+             text->chunkOffset = 0;
+-            isAccessible = FALSE;
++            isAccessible = false;
+             return true;
+         }
+     }
+--- a/Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp
++++ b/Source/WebCore/platform/text/icu/UTextProviderLatin1.cpp
+@@ -100,23 +100,23 @@ static UBool uTextLatin1Access(UText* uText, int64_t i
+         if (index < uText->chunkNativeLimit && index >= uText->chunkNativeStart) {
+             // Already inside the buffer. Set the new offset.
+             uText->chunkOffset = static_cast<int32_t>(index - uText->chunkNativeStart);
+-            return TRUE;
++            return true;
+         }
+         if (index >= length && uText->chunkNativeLimit == length) {
+             // Off the end of the buffer, but we can't get it.
+             uText->chunkOffset = static_cast<int32_t>(index - uText->chunkNativeStart);
+-            return FALSE;
++            return false;
+         }
+     } else {
+         if (index <= uText->chunkNativeLimit && index > uText->chunkNativeStart) {
+             // Already inside the buffer. Set the new offset.
+             uText->chunkOffset = static_cast<int32_t>(index - uText->chunkNativeStart);
+-            return TRUE;
++            return true;
+         }
+         if (!index && !uText->chunkNativeStart) {
+             // Already at the beginning; can't go any farther.
+             uText->chunkOffset = 0;
+-            return FALSE;
++            return false;
+         }
+     }
+     
+@@ -144,7 +144,7 @@ static UBool uTextLatin1Access(UText* uText, int64_t i
+ 
+     uText->nativeIndexingLimit = uText->chunkLength;
+ 
+-    return TRUE;
++    return true;
+ }
+ 
+ static int32_t uTextLatin1Extract(UText* uText, int64_t start, int64_t limit, UChar* dest, int32_t destCapacity, UErrorCode* status)
+@@ -336,7 +336,7 @@ static int64_t uTextLatin1ContextAwareNativeLength(UTe
+ static UBool uTextLatin1ContextAwareAccess(UText* text, int64_t nativeIndex, UBool forward)
+ {
+     if (!text->context)
+-        return FALSE;
++        return false;
+     int64_t nativeLength = uTextLatin1ContextAwareNativeLength(text);
+     UBool isAccessible;
+     if (uTextAccessInChunkOrOutOfRange(text, nativeIndex, nativeLength, forward, isAccessible))
+@@ -356,7 +356,7 @@ static UBool uTextLatin1ContextAwareAccess(UText* text
+         ASSERT(newContext == UTextProviderContext::PriorContext);
+         textLatin1ContextAwareSwitchToPriorContext(text, nativeIndex, nativeLength, forward);
+     }
+-    return TRUE;
++    return true;
+ }
+ 
+ static int32_t uTextLatin1ContextAwareExtract(UText*, int64_t, int64_t, UChar*, int32_t, UErrorCode* errorCode)
+--- a/Source/WebCore/platform/text/icu/UTextProviderUTF16.cpp
++++ b/Source/WebCore/platform/text/icu/UTextProviderUTF16.cpp
+@@ -125,7 +125,7 @@ static inline int64_t uTextUTF16ContextAwareNativeLeng
+ static UBool uTextUTF16ContextAwareAccess(UText* text, int64_t nativeIndex, UBool forward)
+ {
+     if (!text->context)
+-        return FALSE;
++        return false;
+     int64_t nativeLength = uTextUTF16ContextAwareNativeLength(text);
+     UBool isAccessible;
+     if (uTextAccessInChunkOrOutOfRange(text, nativeIndex, nativeLength, forward, isAccessible))
+@@ -145,7 +145,7 @@ static UBool uTextUTF16ContextAwareAccess(UText* text,
+         ASSERT(newContext == UTextProviderContext::PriorContext);
+         textUTF16ContextAwareSwitchToPriorContext(text, nativeIndex, nativeLength, forward);
+     }
+-    return TRUE;
++    return true;
+ }
+ 
+ static int32_t uTextUTF16ContextAwareExtract(UText*, int64_t, int64_t, UChar*, int32_t, UErrorCode* errorCode)
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebkit.patch b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebkit.patch
new file mode 100644
index 000000000000..b94a4b76cbab
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/qtwebkit.patch
@@ -0,0 +1,12 @@
+diff --git a/Source/WebKit2/PlatformQt.cmake b/Source/WebKit2/PlatformQt.cmake
+--- a/Source/WebKit2/PlatformQt.cmake
++++ b/Source/WebKit2/PlatformQt.cmake
+@@ -261,6 +261,7 @@
+ list(APPEND WebKit2_SYSTEM_INCLUDE_DIRECTORIES
+     ${GLIB_INCLUDE_DIRS}
+     ${GSTREAMER_INCLUDE_DIRS}
++    ${GSTREAMER_PBUTILS_INCLUDE_DIRS}
+     ${Qt5Quick_INCLUDE_DIRS}
+     ${Qt5Quick_PRIVATE_INCLUDE_DIRS}
+     ${SQLITE_INCLUDE_DIR}
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/srcs-generated.json b/nixpkgs/pkgs/development/libraries/qt-5/5.15/srcs-generated.json
new file mode 100644
index 000000000000..76c4237dcaf7
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/srcs-generated.json
@@ -0,0 +1,207 @@
+{
+  "qt3d": {
+    "url": "https://invent.kde.org/qt/qt/qt3d.git",
+    "rev": "7edec6e014de27b9dd03f63875c471aac606a918",
+    "sha256": "0qv4vhciigqd8bnqzrs7y71ls7jx1p9cal2rh78m42qgskk1ci59"
+  },
+  "qtactiveqt": {
+    "url": "https://invent.kde.org/qt/qt/qtactiveqt.git",
+    "rev": "f0d03da0e37a84029a4eae1733813521482ac1fb",
+    "sha256": "0llk76lf0mh4mzj7pwd8cs55wpmfq8v1bsdzvizb1sx0vfbjh8g6"
+  },
+  "qtandroidextras": {
+    "url": "https://invent.kde.org/qt/qt/qtandroidextras.git",
+    "rev": "8cce1098c59534352aa0f343ea73861f603ac04a",
+    "sha256": "130a1yda2m7pa10as3rccz84m3617422n6s51pdn4kp8p8rk7cs6"
+  },
+  "qtbase": {
+    "url": "https://invent.kde.org/qt/qt/qtbase.git",
+    "rev": "c9fde86b0a2440133bc08f4811b6ca793be47f0a",
+    "sha256": "1fqhdkv3sp3nbzqi2a5wvxn5d4v0xcrq2bl609bdyj4nx367a8wp"
+  },
+  "qtcharts": {
+    "url": "https://invent.kde.org/qt/qt/qtcharts.git",
+    "rev": "130463160b4923069eb98da49edaf7d93180f4f8",
+    "sha256": "19g35cddbfh307mk76wac1ps03warynlsj7xi8i596bxiaf7i4pw"
+  },
+  "qtconnectivity": {
+    "url": "https://invent.kde.org/qt/qt/qtconnectivity.git",
+    "rev": "69a87a9b831e36a578594a0a13130c384ad03121",
+    "sha256": "0ph07rdf9qfxnw3z2nqbmh6na65z0p2snmlzdw80amd7s0g255kw"
+  },
+  "qtdatavis3d": {
+    "url": "https://invent.kde.org/qt/qt/qtdatavis3d.git",
+    "rev": "c085311c02dd216e5a041b90c164d55b3cf3ce92",
+    "sha256": "0xya1m2csb42yisl90s9822p9q92n7ags909nlbapfsb49qwsqnj"
+  },
+  "qtdeclarative": {
+    "url": "https://invent.kde.org/qt/qt/qtdeclarative.git",
+    "rev": "55324650f9e759a43dce927f823c9858574106c3",
+    "sha256": "0cxz4pqvb8l0wqpc4hr0xmc72csqf7dpbbzdqgil9nyyg21ihkz0"
+  },
+  "qtdoc": {
+    "url": "https://invent.kde.org/qt/qt/qtdoc.git",
+    "rev": "897e90fe304d844beaf694b82a93a50237fa8b9e",
+    "sha256": "1c4m9vlgg6bfw7hwzanl5s4vslg0r7xiz50lanhqrlcrr9i36xs1"
+  },
+  "qtgamepad": {
+    "url": "https://invent.kde.org/qt/qt/qtgamepad.git",
+    "rev": "64afa18a0a1e9588060e2e6d917bb01ccdd48a81",
+    "sha256": "1h9yb0asprynnb2qyjbmyglrkk9f9v19g6zzpk0gmixrp0h8gk46"
+  },
+  "qtgraphicaleffects": {
+    "url": "https://invent.kde.org/qt/qt/qtgraphicaleffects.git",
+    "rev": "c36998dc1581167b12cc3de8e4ac68c2a5d9f76e",
+    "sha256": "0x11n2fym765z3gyb4xnfl7v6zrip1wjkkl6nx1bxaya173fvdw8"
+  },
+  "qtimageformats": {
+    "url": "https://invent.kde.org/qt/qt/qtimageformats.git",
+    "rev": "cb82c74310837fe4e832c8ab72176a5d63e4355f",
+    "sha256": "0j4cv5sa6mm3adcjw8cv6kbzrslmhjc1rgxqgc130l8vm3vmgbkr"
+  },
+  "qtlocation": {
+    "url": "https://invent.kde.org/qt/qt/qtlocation.git",
+    "rev": "861e372b6ad81570d4f496e42fb25a6699b72f2f",
+    "sha256": "1g24pg9v6sv5zf80r48innp3h4g0hss69hnr7ygfzfvfnmmn6g52"
+  },
+  "qtlottie": {
+    "url": "https://invent.kde.org/qt/qt/qtlottie.git",
+    "rev": "fa8c8bfc6742ab98b61d1351e054e0e73e9a42f4",
+    "sha256": "1xgykaw8qjnaip6h9jx0nfadc9amb6aclk758vm5pp43dvs5j96r"
+  },
+  "qtmacextras": {
+    "url": "https://invent.kde.org/qt/qt/qtmacextras.git",
+    "rev": "e72896968697e2a8af16a312e1560948e4c40f30",
+    "sha256": "1hndpbr1nnybn7frg76q99bk1c8fhvra6wjm0q78p4a8pinrvcms"
+  },
+  "qtmultimedia": {
+    "url": "https://invent.kde.org/qt/qt/qtmultimedia.git",
+    "rev": "bd29c87027637a013f2c5e3b549fcda84e4d7545",
+    "sha256": "11pz9zzrhsr3n78ga7l3kp3gi20rpxsa4iz3wclhcbcm2xr3nd94"
+  },
+  "qtnetworkauth": {
+    "url": "https://invent.kde.org/qt/qt/qtnetworkauth.git",
+    "rev": "53870ee9bb9117702cd1f11cb1c5d1cfc2d5394a",
+    "sha256": "0idaysqpwrghih7ijrm9hagj9jw3fy9nw539fr4d9rmcggnkkzn2"
+  },
+  "qtpurchasing": {
+    "url": "https://invent.kde.org/qt/qt/qtpurchasing.git",
+    "rev": "cbf444fb570ca4f4ca21d963d2ae4010f10d473e",
+    "sha256": "1cki7n62wqm3xxn36mka0y67ngn7jvjkrvr08vsassbjb7kfsmxp"
+  },
+  "qtquick3d": {
+    "url": "https://invent.kde.org/qt/qt/qtquick3d.git",
+    "rev": "3e3e53c834b25dc2959dd30f319d12d6f84ee1e3",
+    "sha256": "1b1khfg26zl3p28yvhwjfldqy3flh10pb5hm5z0av03rz7jy7l8s"
+  },
+  "qtquickcontrols": {
+    "url": "https://invent.kde.org/qt/qt/qtquickcontrols.git",
+    "rev": "cf3f6d7fec824cdf01f9b329ab3b92b1c0e0a420",
+    "sha256": "1vxp0kwigwhqyyfm0xg8llyd1l1f4l18hmk6xqkm57xpi15x55bc"
+  },
+  "qtquickcontrols2": {
+    "url": "https://invent.kde.org/qt/qt/qtquickcontrols2.git",
+    "rev": "be66bf9a5618c745d2a6ee2262967af6307b3b07",
+    "sha256": "11h3f3rb2kqgsw7njzhjwazw1k03v12i83irjndylafiaqw6c6ks"
+  },
+  "qtquicktimeline": {
+    "url": "https://invent.kde.org/qt/qt/qtquicktimeline.git",
+    "rev": "67503cdadea43b95ddad0de1a04951aff0ce1a07",
+    "sha256": "0h4b3ibcf6rsmqmcfbwbk9pbvw3b9cac8nx2538aqvnpyyp1vhid"
+  },
+  "qtremoteobjects": {
+    "url": "https://invent.kde.org/qt/qt/qtremoteobjects.git",
+    "rev": "4d6d1e35fb8e0cb900b5e5e9266edea51dc4f735",
+    "sha256": "1zbxl5jk7x8qklrnbbaikymyviigqdq7vf0wc8gzls4126vcx146"
+  },
+  "qtscript": {
+    "url": "https://invent.kde.org/qt/qt/qtscript.git",
+    "rev": "5cec94b2c1503f106f4ef4778d016410ebb86211",
+    "sha256": "1xdri98cw7m78k9kfb53cgh8wyz98q3i623jhhcv01rvy1zsf8m1"
+  },
+  "qtscxml": {
+    "url": "https://invent.kde.org/qt/qt/qtscxml.git",
+    "rev": "7a15000f42c7a3171719727cd056f82a78244ed7",
+    "sha256": "1i2ajsj9pb1s4lk4djj1h1ay9mkz1z3m75a747cspyc1p1iymipq"
+  },
+  "qtsensors": {
+    "url": "https://invent.kde.org/qt/qt/qtsensors.git",
+    "rev": "921a31375f29e429e95352b08b2b9dbfea663cb1",
+    "sha256": "1ijayk6lf34nwv7s3ib3cfqx9sjrmr1c6jnziwmxa1l6fy3ik4g8"
+  },
+  "qtserialbus": {
+    "url": "https://invent.kde.org/qt/qt/qtserialbus.git",
+    "rev": "8884c5e43df846deac5a0c7c290eeb633d6bfe32",
+    "sha256": "1ydb5x21j26pl58mr6klnwixkqx8h119nvnzvyawz83gji3ay3a5"
+  },
+  "qtserialport": {
+    "url": "https://invent.kde.org/qt/qt/qtserialport.git",
+    "rev": "941d1d8560d1f3e40077c251fbde6fd6a5b0f0d4",
+    "sha256": "0x7ly67gddmz0hqls9109bk4rgaa97ksyv24qk4brrhzkpr7q9cx"
+  },
+  "qtspeech": {
+    "url": "https://invent.kde.org/qt/qt/qtspeech.git",
+    "rev": "a0efc38377e5bf7eed2d354d1cb4d7a0d5dc7e1b",
+    "sha256": "1ljf45f65pfp8x367qnzl0ssz7n17cxhk29qvqpz9z7rh65zqix5"
+  },
+  "qtsvg": {
+    "url": "https://invent.kde.org/qt/qt/qtsvg.git",
+    "rev": "24128cdf8bef53eddf31a5709bbbc46293006b1c",
+    "sha256": "0vinjcbq4saxhlmvb5i93bzgg30qc3j8r2qfwrzaxc4vmfhfgi56"
+  },
+  "qttools": {
+    "url": "https://invent.kde.org/qt/qt/qttools.git",
+    "rev": "33693a928986006d79c1ee743733cde5966ac402",
+    "sha256": "02n0lppsp6g4s9bdvnfxpf7ndkbs9bzm0clcwvirwf2cd8q95a4n"
+  },
+  "qttranslations": {
+    "url": "https://invent.kde.org/qt/qt/qttranslations.git",
+    "rev": "8fbbdf21f127197f97b58c7d80d2fa2a59135638",
+    "sha256": "06r2jb2fsdr5fvxs748war0lr4mm3l3d3b37xc4n73y294vwrmn7"
+  },
+  "qtvirtualkeyboard": {
+    "url": "https://invent.kde.org/qt/qt/qtvirtualkeyboard.git",
+    "rev": "353b75b2e34bdae901625bbddf5c5e3f3e6c0de5",
+    "sha256": "12nv773zc05yrbai1z6i481yinih0kxcjzgm9pa0580qz69gd9a5"
+  },
+  "qtwayland": {
+    "url": "https://invent.kde.org/qt/qt/qtwayland.git",
+    "rev": "992833ca741efe8f533c61abfaf129a1d8bfcfee",
+    "sha256": "1w8mq38k6s0fncqv113bw1pc7g10ysfmsbyg23hxh9fr5q4ia4q7"
+  },
+  "qtwebchannel": {
+    "url": "https://invent.kde.org/qt/qt/qtwebchannel.git",
+    "rev": "47be9a51b01d9fd9e7f6dca81e98d4eedcec6d38",
+    "sha256": "167rp43c86xr4grzxs4bl46y6sf1q9xa0641mgp4r94g2ipxyc1d"
+  },
+  "qtwebglplugin": {
+    "url": "https://invent.kde.org/qt/qt/qtwebglplugin.git",
+    "rev": "550a8cee241bbf8c11863dec9587d579dcb1108b",
+    "sha256": "0p1y0b8zsm7rrkhhylndp282ghgki2cjrgc4n5zhjn732ahxg515"
+  },
+  "qtwebsockets": {
+    "url": "https://invent.kde.org/qt/qt/qtwebsockets.git",
+    "rev": "e7883bc64440b1ff4666272ac6eb710ee4bc221b",
+    "sha256": "1rj99y1f0wn6g1m2k53xkni5v79zgq25yv8b9wx2bz0n2r9iasca"
+  },
+  "qtwebview": {
+    "url": "https://invent.kde.org/qt/qt/qtwebview.git",
+    "rev": "920de5f1cd9f9001cfef1bfd2c19e6720793362f",
+    "sha256": "04hnqalabhypkd2hgl45jxf9p1p6dgjwlc5b7gs4f6588lafgd3f"
+  },
+  "qtwinextras": {
+    "url": "https://invent.kde.org/qt/qt/qtwinextras.git",
+    "rev": "3df03dab21f3e84d5a7274c64dd879854ca1bfe7",
+    "sha256": "12dkw982xcm7hxw3lxhg34wny4srbickxm9s3nz7bdyp9dmqnygx"
+  },
+  "qtx11extras": {
+    "url": "https://invent.kde.org/qt/qt/qtx11extras.git",
+    "rev": "3898f5484fd4864b047729bfeda9a1222f32364f",
+    "sha256": "04rp8arml19b03iybd7sa78dsdv7386m9ymmgqciwl13dhwjssra"
+  },
+  "qtxmlpatterns": {
+    "url": "https://invent.kde.org/qt/qt/qtxmlpatterns.git",
+    "rev": "189e28d0aff1f3d7960228ba318b83e3cadac98c",
+    "sha256": "0vs9j2i1dnlivcrzz175zz66ql1m8mrdqkglvyqjqv6cb7mpskrq"
+  }
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/5.15/srcs.nix b/nixpkgs/pkgs/development/libraries/qt-5/5.15/srcs.nix
new file mode 100644
index 000000000000..21b4f55a3d5d
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/5.15/srcs.nix
@@ -0,0 +1,72 @@
+{ lib, fetchgit, fetchFromGitHub }:
+
+let
+  version = "5.15.3";
+  overrides = {
+    qtscript.version = "5.15.4";
+  };
+
+  mk = name: args:
+    let
+      override = overrides.${name} or {};
+    in
+    {
+      version = override.version or version;
+      src = override.src or
+        fetchgit {
+          inherit (args) url rev sha256;
+          fetchLFS = false;
+          fetchSubmodules = false;
+          deepClone = false;
+          leaveDotGit = false;
+        };
+    };
+in
+lib.mapAttrs mk (lib.importJSON ./srcs-generated.json)
+// {
+  # qtwebkit does not have an official release tarball on the qt mirror and is
+  # mostly maintained by the community.
+  qtwebkit = rec {
+    src = fetchFromGitHub {
+      owner = "qt";
+      repo = "qtwebkit";
+      rev = "v${version}";
+      sha256 = "0x8rng96h19xirn7qkz3lydal6v4vn00bcl0s3brz36dfs0z8wpg";
+    };
+    version = "5.212.0-alpha4";
+  };
+
+  qtwebengine =
+    let
+      branchName = "5.15.7";
+      rev = "v${branchName}-lts";
+    in
+    {
+      version = branchName;
+
+      src = fetchgit {
+        url = "https://github.com/qt/qtwebengine.git";
+        sha256 = "fssBN/CDgXAuiNj14MPeIDI15ZDRBGuF7wxSXns9exU=";
+        inherit rev branchName;
+        fetchSubmodules = true;
+        leaveDotGit = true;
+        name = "qtwebengine-${lib.substring 0 7 rev}.tar.gz";
+        postFetch = ''
+          # remove submodule .git directory
+          rm -rf "$out/src/3rdparty/.git"
+
+          # compress to not exceed the 2GB output limit
+          # try to make a deterministic tarball
+          tar -I 'gzip -n' \
+            --sort=name \
+            --mtime=1970-01-01 \
+            --owner=root --group=root \
+            --numeric-owner --mode=go=rX,u+rw,a-s \
+            --transform='s@^@source/@' \
+            -cf temp  -C "$out" .
+          rm -r "$out"
+          mv temp "$out"
+        '';
+      };
+    };
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/README.md b/nixpkgs/pkgs/development/libraries/qt-5/README.md
new file mode 100644
index 000000000000..b2ef74d0aef1
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/README.md
@@ -0,0 +1,81 @@
+# Qt 5 Maintainer's Notes
+
+## Minor Updates
+
+Let `$major` be the major version number, e.g. `5.9`.
+
+1. Change the version number in the `$major/fetch.sh`.
+2. Run `./maintainers/scripts/fetch-kde-qt.sh pkgs/development/libraries/qt-5/$major`
+   from the top of the Nixpkgs tree.
+
+See below if it is necessary to update any patches.
+
+## Major Updates
+
+Let `$major` be the new major version number, e.g. `5.10`.
+
+1. Copy the subdirectory from the previous major version to `$major`.
+2. Change the version number in `$major/fetch.sh`.
+3. Run `./maintainers/scripts/fetch-kde-qt.sh pkgs/development/libraries/qt-5/$major`
+   from the top of the Nixpkgs tree.
+4. Add a top-level attribute in `pkgs/top-level/all-packages.nix` for the new
+   major version.
+5. Change the `qt5` top-level attribute to point to the new major version.
+6. If the previous major version is _not_ a long-term support release,
+   remove it from Nixpkgs.
+
+See below if it is necessary to update any patches.
+
+## Patches
+
+Nixpkgs maintains several patches for Qt which cannot be submitted upstream. To
+facilitate maintenance, a fork of the upstream repository is created for each patched module:
+
+- [qtbase](https://github.com/ttuegel/qtbase)
+- [qtwebkit](https://github.com/ttuegel/qtwebkit)
+- [qttools](https://github.com/ttuegel/qttools)
+- [qtscript](https://github.com/ttuegel/qtscript)
+- [qtserialport](https://github.com/ttuegel/qtserialport)
+- [qtdeclarative](https://github.com/ttuegel/qtdeclarative)
+- [qtwebengine](https://github.com/ttuegel/qtwebengine)
+
+In each repository, the patches are contained in a branch named `nixpkgs/$major`
+for each major version. Please make a pull request to add or update any patch
+which will be maintained in Nixpkgs.
+
+The forked repository for each module is used to create a single patch in
+Nixpkgs. To recreate the patch for module `$module` (e.g. `qtbase`) at version
+`$version` (e.g. `5.9.1`) in the branch `$major` (e.g. `5.9`),
+
+1. Clone the fork for `$module` from the list above.
+2. Checkout the active branch, `git checkout nixpkgs/$major`.
+3. Compare the patched branch to the release tag,
+   `git diff v$version > $module.patch`.
+4. Copy `$module.patch` into the Nixpkgs tree.
+
+### Minor Version Updates
+
+To update module `$module` to version `$version` from an older version in the
+same branch `$major`,
+
+1. Clone the fork for `$module` from the list above.
+2. Checkout the active branch, `git checkout nixpkgs/$major`.
+3. Merge the new version into the active branch,
+   `git merge --no-ff v$version`.
+4. Fix any conflicts.
+5. Open a pull request for the changes.
+6. Follow the instructions above to recreate the module patch in Nixpkgs.
+
+### Major Version Updates
+
+To update module `$module` from `$oldversion` in branch `$oldmajor` to version
+`$version` in branch `$major`,
+
+1. Clone the fork for `$module` from the list above.
+2. Checkout a new branch for the new major version,
+   `git checkout -b nixpkgs/$major nixpkgs/$oldmajor`.
+3. Rebase the patches from `$oldversion` onto the new branch,
+   `git rebase v$oldversion --onto v$version`.
+4. Fix any conflicts.
+5. Open a pull request for the changes.
+6. Follow the instructions above to recreate the module patch in Nixpkgs.
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/hooks/fix-qmake-libtool.sh b/nixpkgs/pkgs/development/libraries/qt-5/hooks/fix-qmake-libtool.sh
new file mode 100644
index 000000000000..6aaeda052d70
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/hooks/fix-qmake-libtool.sh
@@ -0,0 +1,25 @@
+# Fix libtool libraries generated by qmake.
+# qmake started inserting filenames of shared objects instead of the appropriate
+# linker flags. fixQmakeLibtool searches for broken libtool libraries and
+# replaces the filenames with the linker flags that should have been there.
+fixQmakeLibtool() {
+    if [ -d "$1" ]; then
+        find "$1" -name '*.la' | while read la; do
+            set +e
+            framework_libs=$(grep '^dependency_libs' "$la" | grep -Eo -- '-framework +\w+' | tr '\n' ' ')
+            set -e
+            sed -i "$la" \
+                -e '/^dependency_libs/ s,\(/[^ ]\+\)/lib\([^/ ]\+\)\.so,-L\1 -l\2,g' \
+                -e '/^dependency_libs/ s,-framework \+\w\+,,g'
+            if [ ! -z "$framework_libs" ]; then
+                if grep '^inherited_linker_flags=' $la >/dev/null; then
+                    sed -i "$la" -e "s/^\(inherited_linker_flags='[^']*\)/\1 $framework_libs/"
+                else
+                    echo "inherited_linker_flags='$framework_libs'" >> "$la"
+                fi
+            fi
+        done
+    fi
+}
+
+fixupOutputHooks+=('fixQmakeLibtool $prefix')
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/hooks/fix-qt-builtin-paths.sh b/nixpkgs/pkgs/development/libraries/qt-5/hooks/fix-qt-builtin-paths.sh
new file mode 100644
index 000000000000..4ca11a223de2
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/hooks/fix-qt-builtin-paths.sh
@@ -0,0 +1,64 @@
+# fixQtBuiltinPaths
+#
+# Usage: fixQtBuiltinPaths _dir_ _pattern_
+#
+# Fix Qt builtin paths in files matching _pattern_ under _dir_.
+#
+fixQtBuiltinPaths() {
+    local dir="$1"
+    local pattern="$2"
+    local bin="${!outputBin}"
+    local dev="${!outputDev}"
+    local doc="${!outputDoc}"
+    local lib="${!outputLib}"
+
+    if [ -d "$dir" ]; then
+        find "$dir" -name "$pattern" | while read pr_; do
+            if grep -q '\$\$\[QT_' "${pr_:?}"; then
+                echo "fixQtBuiltinPaths: Fixing Qt builtin paths in \`${pr_:?}'..."
+                sed -i "${pr_:?}" \
+                    -e "s|\\\$\\\$\\[QT_HOST_BINS[^]]*\\]|$dev/bin|g" \
+                    -e "s|\\\$\\\$\\[QT_HOST_DATA[^]]*\\]/mkspecs|$dev/mkspecs|g" \
+                    -e "s|\\\$\\\$\\[QT_HOST_PREFIX[^]]*\\]|$dev|g" \
+                    -e "s|\\\$\\\$\\[QT_INSTALL_ARCHDATA[^]]*\\]|$lib|g" \
+                    -e "s|\\\$\\\$\\[QT_INSTALL_BINS[^]]*\\]|$bin/bin|g" \
+                    -e "s|\\\$\\\$\\[QT_INSTALL_CONFIGURATION[^]]*\\]|$bin|g" \
+                    -e "s|\\\$\\\$\\[QT_INSTALL_DATA[^]]*\\]|$lib|g" \
+                    -e "s|\\\$\\\$\\[QT_INSTALL_DOCS[^]]*\\]|$doc/share/doc|g" \
+                    -e "s|\\\$\\\$\\[QT_INSTALL_EXAMPLES[^]]*\\]|$doc/examples|g" \
+                    -e "s|\\\$\\\$\\[QT_INSTALL_HEADERS[^]]*\\]|$dev/include|g" \
+                    -e "s|\\\$\\\$\\[QT_INSTALL_LIBS[^]]*\\]|$lib/lib|g" \
+                    -e "s|\\\$\\\$\\[QT_INSTALL_LIBEXECS[^]]*\\]|$lib/libexec|g" \
+                    -e "s|\\\$\\\$\\[QT_INSTALL_PLUGINS[^]]*\\]|$bin/$qtPluginPrefix|g" \
+                    -e "s|\\\$\\\$\\[QT_INSTALL_PREFIX[^]]*\\]|$lib|g" \
+                    -e "s|\\\$\\\$\\[QT_INSTALL_TESTS[^]]*\\]|$dev/tests|g" \
+                    -e "s|\\\$\\\$\\[QT_INSTALL_TRANSLATIONS[^]]*\\]|$lib/translations|g" \
+                    -e "s|\\\$\\\$\\[QT_INSTALL_QML[^]]*\\]|$bin/$qtQmlPrefix|g"
+            fi
+        done
+    elif [ -e "$dir" ]; then
+        if grep -q '\$\$\[QT_' "${dir:?}"; then
+            echo "fixQtBuiltinPaths: Fixing Qt builtin paths in \`${dir:?}'..."
+            sed -i "${dir:?}" \
+                -e "s|\\\$\\\$\\[QT_HOST_BINS[^]]*\\]|$dev/bin|g" \
+                -e "s|\\\$\\\$\\[QT_HOST_DATA[^]]*\\]/mkspecs|$dev/mkspecs|g" \
+                -e "s|\\\$\\\$\\[QT_HOST_PREFIX[^]]*\\]|$dev|g" \
+                -e "s|\\\$\\\$\\[QT_INSTALL_ARCHDATA[^]]*\\]|$lib|g" \
+                -e "s|\\\$\\\$\\[QT_INSTALL_BINS[^]]*\\]|$bin/bin|g" \
+                -e "s|\\\$\\\$\\[QT_INSTALL_CONFIGURATION[^]]*\\]|$bin|g" \
+                -e "s|\\\$\\\$\\[QT_INSTALL_DATA[^]]*\\]|$lib|g" \
+                -e "s|\\\$\\\$\\[QT_INSTALL_DOCS[^]]*\\]|$doc/share/doc|g" \
+                -e "s|\\\$\\\$\\[QT_INSTALL_EXAMPLES[^]]*\\]|$doc/examples|g" \
+                -e "s|\\\$\\\$\\[QT_INSTALL_HEADERS[^]]*\\]|$dev/include|g" \
+                -e "s|\\\$\\\$\\[QT_INSTALL_LIBS[^]]*\\]|$lib/lib|g" \
+                -e "s|\\\$\\\$\\[QT_INSTALL_LIBEXECS[^]]*\\]|$lib/libexec|g" \
+                -e "s|\\\$\\\$\\[QT_INSTALL_PLUGINS[^]]*\\]|$bin/$qtPluginPrefix|g" \
+                -e "s|\\\$\\\$\\[QT_INSTALL_PREFIX[^]]*\\]|$lib|g" \
+                -e "s|\\\$\\\$\\[QT_INSTALL_TESTS[^]]*\\]|$dev/tests|g" \
+                -e "s|\\\$\\\$\\[QT_INSTALL_TRANSLATIONS[^]]*\\]|$lib/translations|g" \
+                -e "s|\\\$\\\$\\[QT_INSTALL_QML[^]]*\\]|$bin/$qtQmlPrefix|g"
+        fi
+    else
+        echo "fixQtBuiltinPaths: Warning: \`$dir' does not exist"
+    fi
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/hooks/fix-qt-module-paths.sh b/nixpkgs/pkgs/development/libraries/qt-5/hooks/fix-qt-module-paths.sh
new file mode 100644
index 000000000000..33682f6f3c69
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/hooks/fix-qt-module-paths.sh
@@ -0,0 +1,36 @@
+# fixQtModulePaths
+#
+# Usage: fixQtModulePaths _dir_
+#
+# Find Qt module definitions in directory _dir_ and patch the module paths.
+#
+fixQtModulePaths () {
+    local dir="$1"
+    local bin="${!outputBin}"
+    local dev="${!outputDev}"
+    local lib="${!outputLib}"
+
+    if [ -d "$dir" ]; then
+        find "$dir" -name 'qt_*.pri' | while read pr; do
+            if grep -q '\$\$QT_MODULE_' "${pr:?}"; then
+                echo "fixQtModulePaths: Fixing module paths in \`${pr:?}'..."
+                sed -i "${pr:?}" \
+                    -e "s|\\\$\\\$QT_MODULE_LIB_BASE|$lib/lib|g" \
+                    -e "s|\\\$\\\$QT_MODULE_HOST_LIB_BASE|$lib/lib|g" \
+                    -e "s|\\\$\\\$QT_MODULE_INCLUDE_BASE|$dev/include|g" \
+                    -e "s|\\\$\\\$QT_MODULE_BIN_BASE|$dev/bin|g"
+            fi
+        done
+    elif [ -e "$dir" ]; then
+        echo "fixQtModulePaths: Warning: \`$dir' is not a directory"
+    else
+        echo "fixQtModulePaths: Warning: \`$dir' does not exist"
+    fi
+
+    if [ "z$bin" != "z$dev" ]; then
+        if [ -d "$bin/bin" ]; then
+            mkdir -p "$dev/bin"
+            lndir -silent "$bin/bin" "$dev/bin"
+        fi
+    fi
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/hooks/move-qt-dev-tools.sh b/nixpkgs/pkgs/development/libraries/qt-5/hooks/move-qt-dev-tools.sh
new file mode 100644
index 000000000000..85489c85105b
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/hooks/move-qt-dev-tools.sh
@@ -0,0 +1,34 @@
+updateToolPath() {
+    local tool="$1"
+    local target="$2"
+    local original="${!outputBin}/$tool"
+    local actual="${!outputDev}/$tool"
+    if grep -q "$original" "$target"; then
+        echo "updateToolPath: Updating \`$original' in \`$target\'..."
+        sed -i "$target" -e "s|$original|$actual|"
+    fi
+}
+
+moveQtDevTools() {
+    if [ -n "$devTools" ]; then
+        for tool in $devTools; do
+            moveToOutput "$tool" "${!outputDev}"
+        done
+
+        if [ -d "${!outputDev}/mkspecs" ]; then
+            find "${!outputDev}/mkspecs" -name '*.pr?' | while read pr_; do
+                for tool in $devTools; do
+                    updateToolPath "$tool" "$pr_"
+                done
+            done
+        fi
+
+        if [ -d "${!outputDev}/lib/cmake" ]; then
+            find "${!outputDev}/lib/cmake" -name '*.cmake' | while read cmake; do
+                for tool in $devTools; do
+                    updateToolPath "$tool" "$cmake"
+                done
+            done
+        fi
+    fi
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/hooks/qmake-hook.sh b/nixpkgs/pkgs/development/libraries/qt-5/hooks/qmake-hook.sh
new file mode 100644
index 000000000000..741225a5aa81
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/hooks/qmake-hook.sh
@@ -0,0 +1,46 @@
+. @fix_qmake_libtool@
+
+qmakeFlags=( ${qmakeFlags-} )
+
+qmakePrePhase() {
+    qmakeFlags_orig=( "${qmakeFlags[@]}" )
+
+    # These flags must be added _before_ the flags specified in the derivation.
+    qmakeFlags=( \
+        "PREFIX=$out" \
+        "NIX_OUTPUT_OUT=$out" \
+        "NIX_OUTPUT_DEV=${!outputDev}" \
+        "NIX_OUTPUT_BIN=${!outputBin}" \
+        "NIX_OUTPUT_DOC=${!outputDev}/${qtDocPrefix:?}" \
+        "NIX_OUTPUT_QML=${!outputBin}/${qtQmlPrefix:?}" \
+        "NIX_OUTPUT_PLUGIN=${!outputBin}/${qtPluginPrefix:?}" \
+    )
+
+    if [ -n "@debug@" ]; then
+        qmakeFlags+=( "CONFIG+=debug" )
+    else
+        qmakeFlags+=( "CONFIG+=release" )
+    fi
+
+    qmakeFlags+=( "${qmakeFlags_orig[@]}" )
+}
+prePhases+=" qmakePrePhase"
+
+qmakeConfigurePhase() {
+    runHook preConfigure
+
+    echo "QMAKEPATH=$QMAKEPATH"
+    echo qmake "${qmakeFlags[@]}"
+    qmake "${qmakeFlags[@]}"
+
+    if ! [[ -v enableParallelBuilding ]]; then
+        enableParallelBuilding=1
+        echo "qmake: enabled parallel building"
+    fi
+
+    runHook postConfigure
+}
+
+if [ -z "${dontUseQmakeConfigure-}" -a -z "${configurePhase-}" ]; then
+    configurePhase=qmakeConfigurePhase
+fi
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/hooks/qtbase-setup-hook.sh b/nixpkgs/pkgs/development/libraries/qt-5/hooks/qtbase-setup-hook.sh
new file mode 100644
index 000000000000..1b57d676e1fc
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/hooks/qtbase-setup-hook.sh
@@ -0,0 +1,112 @@
+if [[ -n "${__nix_qtbase-}" ]]; then
+    # Throw an error if a different version of Qt was already set up.
+    if [[ "$__nix_qtbase" != "@dev@" ]]; then
+        echo >&2 "Error: detected mismatched Qt dependencies:"
+        echo >&2 "    @dev@"
+        echo >&2 "    $__nix_qtbase"
+        exit 1
+    fi
+else # Only set up Qt once.
+__nix_qtbase="@dev@"
+
+qtPluginPrefix=@qtPluginPrefix@
+qtQmlPrefix=@qtQmlPrefix@
+qtDocPrefix=@qtDocPrefix@
+
+. @fix_qt_builtin_paths@
+. @fix_qt_module_paths@
+
+# Disable debug symbols if qtbase was built without debugging.
+# This stops -dev paths from leaking into other outputs.
+if [ -z "@debug@" ]; then
+    NIX_CFLAGS_COMPILE="${NIX_CFLAGS_COMPILE-}${NIX_CFLAGS_COMPILE:+ }-DQT_NO_DEBUG"
+fi
+
+# Integration with CMake:
+# Set the CMake build type corresponding to how qtbase was built.
+if [ -n "@debug@" ]; then
+    cmakeBuildType="Debug"
+else
+    cmakeBuildType="Release"
+fi
+
+providesQtRuntime() {
+    [ -d "$1/$qtPluginPrefix" ] || [ -d "$1/$qtQmlPrefix" ]
+}
+
+# Build tools are often confused if QMAKE is unset.
+QMAKE=@dev@/bin/qmake
+export QMAKE
+
+QMAKEPATH=
+export QMAKEPATH
+
+QMAKEMODULES=
+export QMAKEMODULES
+
+declare -Ag qmakePathSeen=()
+qmakePathHook() {
+    # Skip this path if we have seen it before.
+    # MUST use 'if' because 'qmakePathSeen[$]' may be unset.
+    if [ -n "${qmakePathSeen[$1]-}" ]; then return; fi
+    qmakePathSeen[$1]=1
+    if [ -d "$1/mkspecs" ]
+    then
+        QMAKEMODULES="${QMAKEMODULES}${QMAKEMODULES:+:}/mkspecs"
+        QMAKEPATH="${QMAKEPATH}${QMAKEPATH:+:}$1"
+    fi
+}
+envBuildHostHooks+=(qmakePathHook)
+
+# Propagate any runtime dependency of the building package.
+# Each dependency is propagated to the user environment and as a build
+# input so that it will be re-propagated to the user environment by any
+# package depending on the building package. (This is necessary in case
+# the building package does not provide runtime dependencies itself and so
+# would not be propagated to the user environment.)
+declare -Ag qtEnvHostTargetSeen=()
+qtEnvHostTargetHook() {
+    # Skip this path if we have seen it before.
+    # MUST use 'if' because 'qmakePathSeen[$]' may be unset.
+    if [ -n "${qtEnvHostTargetSeen[$1]-}" ]; then return; fi
+    qtEnvHostTargetSeen[$1]=1
+    if providesQtRuntime "$1" && [ "z${!outputBin}" != "z${!outputDev}" ]
+    then
+        propagatedBuildInputs+=" $1"
+    fi
+}
+envHostTargetHooks+=(qtEnvHostTargetHook)
+
+postPatchMkspecs() {
+    # Prevent this hook from running multiple times
+    dontPatchMkspecs=1
+
+    local bin="${!outputBin}"
+    local dev="${!outputDev}"
+    local doc="${!outputDoc}"
+    local lib="${!outputLib}"
+
+    moveToOutput "mkspecs" "$dev"
+
+    if [ -d "$dev/mkspecs/modules" ]; then
+        fixQtModulePaths "$dev/mkspecs/modules"
+    fi
+
+    if [ -d "$dev/mkspecs" ]; then
+        fixQtBuiltinPaths "$dev/mkspecs" '*.pr?'
+    fi
+}
+if [ -z "${dontPatchMkspecs-}" ]; then
+    postPhases="${postPhases-}${postPhases:+ }postPatchMkspecs"
+fi
+
+qtPreHook() {
+    # Check that wrapQtAppsHook is used, or it is explicitly disabled.
+    if [[ -z "$__nix_wrapQtAppsHook" && -z "$dontWrapQtApps" ]]; then
+        echo >&2 "Error: wrapQtAppsHook is not used, and dontWrapQtApps is not set."
+        exit 1
+    fi
+}
+prePhases+=" qtPreHook"
+
+fi
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/hooks/qttools-setup-hook.sh b/nixpkgs/pkgs/development/libraries/qt-5/hooks/qttools-setup-hook.sh
new file mode 100644
index 000000000000..c320a7974471
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/hooks/qttools-setup-hook.sh
@@ -0,0 +1 @@
+qmakeFlags+=( "QMAKE_LRELEASE=@dev@/bin/lrelease" )
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/hooks/wrap-qt-apps-hook.sh b/nixpkgs/pkgs/development/libraries/qt-5/hooks/wrap-qt-apps-hook.sh
new file mode 100644
index 000000000000..c085cdaca52e
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/hooks/wrap-qt-apps-hook.sh
@@ -0,0 +1,107 @@
+if [[ -z "${__nix_wrapQtAppsHook-}" ]]; then
+__nix_wrapQtAppsHook=1  # Don't run this hook more than once.
+
+# Inherit arguments given in mkDerivation
+qtWrapperArgs=( ${qtWrapperArgs-} )
+
+qtHostPathSeen=()
+
+qtUnseenHostPath() {
+    for pkg in "${qtHostPathSeen[@]}"
+    do
+        if [ "${pkg:?}" == "$1" ]
+        then
+            return 1
+        fi
+    done
+
+    qtHostPathSeen+=("$1")
+    return 0
+}
+
+qtHostPathHook() {
+    qtUnseenHostPath "$1" || return 0
+
+    local pluginDir="$1/${qtPluginPrefix:?}"
+    if [ -d "$pluginDir" ]
+    then
+        qtWrapperArgs+=(--prefix QT_PLUGIN_PATH : "$pluginDir")
+    fi
+
+    local qmlDir="$1/${qtQmlPrefix:?}"
+    if [ -d "$qmlDir" ]
+    then
+        qtWrapperArgs+=(--prefix QML2_IMPORT_PATH : "$qmlDir")
+    fi
+}
+addEnvHooks "$hostOffset" qtHostPathHook
+
+makeQtWrapper() {
+    local original="$1"
+    local wrapper="$2"
+    shift 2
+    makeWrapper "$original" "$wrapper" "${qtWrapperArgs[@]}" "$@"
+}
+
+wrapQtApp() {
+    local program="$1"
+    shift 1
+    wrapProgram "$program" "${qtWrapperArgs[@]}" "$@"
+}
+
+qtOwnPathsHook() {
+    local xdgDataDir="${!outputBin}/share"
+    if [ -d "$xdgDataDir" ]
+    then
+        qtWrapperArgs+=(--prefix XDG_DATA_DIRS : "$xdgDataDir")
+    fi
+
+    local xdgConfigDir="${!outputBin}/etc/xdg"
+    if [ -d "$xdgConfigDir" ]
+    then
+        qtWrapperArgs+=(--prefix XDG_CONFIG_DIRS : "$xdgConfigDir")
+    fi
+
+    qtHostPathHook "${!outputBin}"
+}
+
+preFixupPhases+=" qtOwnPathsHook"
+
+# Note: $qtWrapperArgs still gets defined even if ${dontWrapQtApps-} is set.
+wrapQtAppsHook() {
+    # skip this hook when requested
+    [ -z "${dontWrapQtApps-}" ] || return 0
+
+    # guard against running multiple times (e.g. due to propagation)
+    [ -z "$wrapQtAppsHookHasRun" ] || return 0
+    wrapQtAppsHookHasRun=1
+
+    local targetDirs=( "$prefix/bin" "$prefix/sbin" "$prefix/libexec" "$prefix/Applications" "$prefix/"*.app )
+    echo "wrapping Qt applications in ${targetDirs[@]}"
+
+    for targetDir in "${targetDirs[@]}"
+    do
+        [ -d "$targetDir" ] || continue
+
+        find "$targetDir" ! -type d -executable -print0 | while IFS= read -r -d '' file
+        do
+            isELF "$file" || isMachO "$file" || continue
+
+            if [ -f "$file" ]
+            then
+                echo "wrapping $file"
+                wrapQtApp "$file"
+            elif [ -h "$file" ]
+            then
+                target="$(readlink -e "$file")"
+                echo "wrapping $file -> $target"
+                rm "$file"
+                makeQtWrapper "$target" "$file"
+            fi
+        done
+    done
+}
+
+fixupOutputHooks+=(wrapQtAppsHook)
+
+fi
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/mkDerivation.nix b/nixpkgs/pkgs/development/libraries/qt-5/mkDerivation.nix
new file mode 100644
index 000000000000..98f9a05fac7c
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/mkDerivation.nix
@@ -0,0 +1,17 @@
+{ lib, debug, wrapQtAppsHook }:
+
+let inherit (lib) optional; in
+
+mkDerivation:
+
+args:
+
+let
+  args_ = {
+
+    nativeBuildInputs = (args.nativeBuildInputs or []) ++ [ wrapQtAppsHook ];
+
+  };
+in
+
+mkDerivation (args // args_)
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qt3d.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qt3d.nix
new file mode 100644
index 000000000000..63a516476f27
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qt3d.nix
@@ -0,0 +1,7 @@
+{ qtModule, qtbase, qtdeclarative }:
+
+qtModule {
+  pname = "qt3d";
+  qtInputs = [ qtbase qtdeclarative ];
+  outputs = [ "out" "dev" "bin" ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtbase.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtbase.nix
new file mode 100644
index 000000000000..5e2bb41c40f1
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtbase.nix
@@ -0,0 +1,373 @@
+{ stdenv, lib
+, src, patches, version, qtCompatVersion
+
+, coreutils, bison, flex, gdb, gperf, lndir, perl, pkg-config, python3
+, which
+  # darwin support
+, libiconv, libobjc, xcbuild, AGL, AppKit, ApplicationServices, Carbon, Cocoa, CoreAudio, CoreBluetooth
+, CoreLocation, CoreServices, DiskArbitration, Foundation, OpenGL, MetalKit, IOKit
+
+, dbus, fontconfig, freetype, glib, harfbuzz, icu, libX11, libXcomposite
+, libXcursor, libXext, libXi, libXrender, libinput, libjpeg, libpng
+, libxcb, libxkbcommon, libxml2, libxslt, openssl, pcre16, pcre2, sqlite, udev
+, xcbutil, xcbutilimage, xcbutilkeysyms, xcbutilrenderutil, xcbutilwm
+, zlib, at-spi2-core
+
+  # optional dependencies
+, cups ? null, libmysqlclient ? null, postgresql ? null
+, withGtk3 ? false, dconf ? null, gtk3 ? null
+
+  # options
+, libGLSupported ? !stdenv.isDarwin
+, libGL
+, buildExamples ? false
+, buildTests ? false
+, debug ? false
+, developerBuild ? false
+, decryptSslTraffic ? false
+}:
+
+assert withGtk3 -> dconf != null;
+assert withGtk3 -> gtk3 != null;
+
+let
+  compareVersion = v: builtins.compareVersions version v;
+  qmakeCacheName = if compareVersion "5.12.4" < 0 then ".qmake.cache" else ".qmake.stash";
+  debugSymbols = debug || developerBuild;
+in
+
+stdenv.mkDerivation {
+  pname = "qtbase";
+  inherit qtCompatVersion src version;
+  debug = debugSymbols;
+
+  propagatedBuildInputs = [
+    libxml2 libxslt openssl sqlite zlib
+
+    # Text rendering
+    harfbuzz icu
+
+    # Image formats
+    libjpeg libpng
+    (if compareVersion "5.9.0" < 0 then pcre16 else pcre2)
+  ] ++ (
+    if stdenv.isDarwin then [
+      # TODO: move to buildInputs, this should not be propagated.
+      AGL AppKit ApplicationServices Carbon Cocoa CoreAudio CoreBluetooth
+      CoreLocation CoreServices DiskArbitration Foundation OpenGL
+      libobjc libiconv MetalKit IOKit
+    ] else [
+      dbus glib udev
+
+      # Text rendering
+      fontconfig freetype
+
+      # X11 libs
+      libX11 libXcomposite libXext libXi libXrender libxcb libxkbcommon xcbutil
+      xcbutilimage xcbutilkeysyms xcbutilrenderutil xcbutilwm
+    ] ++ lib.optional libGLSupported libGL
+  );
+
+  buildInputs = [ python3 at-spi2-core ]
+    ++ lib.optionals (!stdenv.isDarwin)
+    (
+      [ libinput ]
+      ++ lib.optional withGtk3 gtk3
+    )
+    ++ lib.optional developerBuild gdb
+    ++ lib.optional (cups != null) cups
+    ++ lib.optional (libmysqlclient != null) libmysqlclient
+    ++ lib.optional (postgresql != null) postgresql;
+
+  nativeBuildInputs = [ bison flex gperf lndir perl pkg-config which ]
+    ++ lib.optionals stdenv.isDarwin [ xcbuild ];
+
+  propagatedNativeBuildInputs = [ lndir ];
+
+  enableParallelBuilding = true;
+
+  outputs = [ "bin" "dev" "out" ];
+
+  inherit patches;
+
+  fix_qt_builtin_paths = ../hooks/fix-qt-builtin-paths.sh;
+  fix_qt_module_paths = ../hooks/fix-qt-module-paths.sh;
+  preHook = ''
+    . "$fix_qt_builtin_paths"
+    . "$fix_qt_module_paths"
+    . ${../hooks/move-qt-dev-tools.sh}
+    . ${../hooks/fix-qmake-libtool.sh}
+  '';
+
+  postPatch = ''
+    for prf in qml_plugin.prf qt_plugin.prf qt_docs.prf qml_module.prf create_cmake.prf; do
+        substituteInPlace "mkspecs/features/$prf" \
+            --subst-var qtPluginPrefix \
+            --subst-var qtQmlPrefix \
+            --subst-var qtDocPrefix
+    done
+
+    substituteInPlace configure --replace /bin/pwd pwd
+    substituteInPlace src/corelib/global/global.pri --replace /bin/ls ${coreutils}/bin/ls
+    sed -e 's@/\(usr\|opt\)/@/var/empty/@g' -i mkspecs/*/*.conf
+
+    sed -i '/PATHS.*NO_DEFAULT_PATH/ d' src/corelib/Qt5Config.cmake.in
+    sed -i '/PATHS.*NO_DEFAULT_PATH/ d' src/corelib/Qt5CoreMacros.cmake
+    sed -i 's/NO_DEFAULT_PATH//' src/gui/Qt5GuiConfigExtras.cmake.in
+    sed -i '/PATHS.*NO_DEFAULT_PATH/ d' mkspecs/features/data/cmake/Qt5BasicConfig.cmake.in
+  '' + lib.optionalString (compareVersion "5.15.0" >= 0) ''
+    patchShebangs ./bin
+  '' + (
+    if stdenv.isDarwin then ''
+        sed -i \
+            -e 's|/usr/bin/xcode-select|xcode-select|' \
+            -e 's|/usr/bin/xcrun|xcrun|' \
+            -e 's|/usr/bin/xcodebuild|xcodebuild|' \
+            -e 's|QMAKE_CONF_COMPILER=`getXQMakeConf QMAKE_CXX`|QMAKE_CXX="clang++"\nQMAKE_CONF_COMPILER="clang++"|' \
+            ./configure
+            substituteInPlace ./mkspecs/common/mac.conf \
+                --replace "/System/Library/Frameworks/OpenGL.framework/" "${OpenGL}/Library/Frameworks/OpenGL.framework/" \
+                --replace "/System/Library/Frameworks/AGL.framework/" "${AGL}/Library/Frameworks/AGL.framework/"
+    '' else lib.optionalString libGLSupported ''
+      sed -i mkspecs/common/linux.conf \
+          -e "/^QMAKE_INCDIR_OPENGL/ s|$|${libGL.dev or libGL}/include|" \
+          -e "/^QMAKE_LIBDIR_OPENGL/ s|$|${libGL.out}/lib|"
+    '' + lib.optionalString (stdenv.hostPlatform.isx86_32 && stdenv.cc.isGNU) ''
+      sed -i mkspecs/common/gcc-base-unix.conf \
+          -e "/^QMAKE_LFLAGS_SHLIB/ s/-shared/-shared -static-libgcc/"
+    ''
+  );
+
+  qtPluginPrefix = "lib/qt-${qtCompatVersion}/plugins";
+  qtQmlPrefix = "lib/qt-${qtCompatVersion}/qml";
+  qtDocPrefix = "share/doc/qt-${qtCompatVersion}";
+
+  setOutputFlags = false;
+  preConfigure = ''
+    export LD_LIBRARY_PATH="$PWD/lib:$PWD/plugins/platforms''${LD_LIBRARY_PATH:+:}$LD_LIBRARY_PATH"
+    ${lib.optionalString (compareVersion "5.9.0" < 0) ''
+    # We need to set LD to CXX or otherwise we get nasty compile errors
+    export LD=$CXX
+    ''}
+
+    NIX_CFLAGS_COMPILE+=" -DNIXPKGS_QT_PLUGIN_PREFIX=\"$qtPluginPrefix\""
+  '' + lib.optionalString (compareVersion "5.15.0" >= 0) ''
+    ./bin/syncqt.pl -version $version
+  '';
+
+  postConfigure = ''
+    qmakeCacheInjectNixOutputs() {
+        local cache="$1/${qmakeCacheName}"
+        echo "qmakeCacheInjectNixOutputs: $cache"
+        if ! [ -f "$cache" ]; then
+            echo >&2 "qmakeCacheInjectNixOutputs: WARNING: $cache does not exist"
+        fi
+        cat >>"$cache" <<EOF
+    NIX_OUTPUT_BIN = $bin
+    NIX_OUTPUT_DEV = $dev
+    NIX_OUTPUT_OUT = $out
+    NIX_OUTPUT_DOC = $dev/$qtDocPrefix
+    NIX_OUTPUT_QML = $bin/$qtQmlPrefix
+    NIX_OUTPUT_PLUGIN = $bin/$qtPluginPrefix
+    EOF
+    }
+
+    find . -name '.qmake.conf' | while read conf; do
+        qmakeCacheInjectNixOutputs "$(dirname $conf)"
+    done
+  '';
+
+  NIX_CFLAGS_COMPILE = toString ([
+    "-Wno-error=sign-compare" # freetype-2.5.4 changed signedness of some struct fields
+    ''-DNIXPKGS_QTCOMPOSE="${libX11.out}/share/X11/locale"''
+    ''-D${if compareVersion "5.11.0" >= 0 then "LIBRESOLV_SO" else "NIXPKGS_LIBRESOLV"}="${stdenv.cc.libc.out}/lib/libresolv"''
+    ''-DNIXPKGS_LIBXCURSOR="${libXcursor.out}/lib/libXcursor"''
+  ] ++ lib.optional libGLSupported ''-DNIXPKGS_MESA_GL="${libGL.out}/lib/libGL"''
+    ++ lib.optional stdenv.isLinux "-DUSE_X11"
+    ++ lib.optionals (stdenv.hostPlatform.system == "x86_64-darwin") [
+      # ignore "is only available on macOS 10.12.2 or newer" in obj-c code
+      "-Wno-error=unguarded-availability"
+    ]
+    ++ lib.optionals withGtk3 [
+         ''-DNIXPKGS_QGTK3_XDG_DATA_DIRS="${gtk3}/share/gsettings-schemas/${gtk3.name}"''
+         ''-DNIXPKGS_QGTK3_GIO_EXTRA_MODULES="${dconf.lib}/lib/gio/modules"''
+       ]
+    ++ lib.optional decryptSslTraffic "-DQT_DECRYPT_SSL_TRAFFIC");
+
+  prefixKey = "-prefix ";
+
+  # PostgreSQL autodetection fails sporadically because Qt omits the "-lpq" flag
+  # if dependency paths contain the string "pq", which can occur in the hash.
+  # To prevent these failures, we need to override PostgreSQL detection.
+  PSQL_LIBS = lib.optionalString (postgresql != null) "-L${postgresql.lib}/lib -lpq";
+
+  # TODO Remove obsolete and useless flags once the build will be totally mastered
+  configureFlags = [
+    "-plugindir $(out)/$(qtPluginPrefix)"
+    "-qmldir $(out)/$(qtQmlPrefix)"
+    "-docdir $(out)/$(qtDocPrefix)"
+
+    "-verbose"
+    "-confirm-license"
+    "-opensource"
+
+    "-release"
+    "-shared"
+    "-accessibility"
+    "-optimized-qmake"
+    "-strip"
+    "-system-proxies"
+    "-pkg-config"
+
+    "-gui"
+    "-widgets"
+    "-opengl desktop"
+    "-icu"
+    "-L" "${icu.out}/lib"
+    "-I" "${icu.dev}/include"
+    "-pch"
+  ] ++ lib.optional debugSymbols "-debug"
+    ++ lib.optionals (compareVersion "5.11.0" < 0) [
+    "-qml-debug"
+  ] ++ lib.optionals (compareVersion "5.9.0" < 0) [
+    "-c++11"
+    "-no-reduce-relocations"
+  ] ++ lib.optionals developerBuild [
+    "-developer-build"
+    "-no-warnings-are-errors"
+  ] ++ (if (!stdenv.hostPlatform.isx86_64) then [
+    "-no-sse2"
+  ] else lib.optionals (compareVersion "5.9.0" >= 0) [
+    "-sse2"
+    "${lib.optionalString (!stdenv.hostPlatform.sse3Support)   "-no"}-sse3"
+    "${lib.optionalString (!stdenv.hostPlatform.ssse3Support)  "-no"}-ssse3"
+    "${lib.optionalString (!stdenv.hostPlatform.sse4_1Support) "-no"}-sse4.1"
+    "${lib.optionalString (!stdenv.hostPlatform.sse4_2Support) "-no"}-sse4.2"
+    "${lib.optionalString (!stdenv.hostPlatform.avxSupport)    "-no"}-avx"
+    "${lib.optionalString (!stdenv.hostPlatform.avx2Support)   "-no"}-avx2"
+    ]
+  ) ++ [
+    "-no-mips_dsp"
+    "-no-mips_dspr2"
+  ] ++ [
+    "-system-zlib"
+    "-L" "${zlib.out}/lib"
+    "-I" "${zlib.dev}/include"
+    "-system-libjpeg"
+    "-L" "${libjpeg.out}/lib"
+    "-I" "${libjpeg.dev}/include"
+    "-system-harfbuzz"
+    "-L" "${harfbuzz.out}/lib"
+    "-I" "${harfbuzz.dev}/include"
+    "-system-pcre"
+    "-openssl-linked"
+    "-L" "${openssl.out}/lib"
+    "-I" "${openssl.dev}/include"
+    "-system-sqlite"
+    ''-${if libmysqlclient != null then "plugin" else "no"}-sql-mysql''
+    ''-${if postgresql != null then "plugin" else "no"}-sql-psql''
+
+    "-make libs"
+    "-make tools"
+    ''-${lib.optionalString (!buildExamples) "no"}make examples''
+    ''-${lib.optionalString (!buildTests) "no"}make tests''
+  ] ++ lib.optional (compareVersion "5.15.0" < 0) "-v"
+    ++ (
+      if stdenv.isDarwin then [
+      "-platform macx-clang"
+      "-no-fontconfig"
+      "-qt-freetype"
+      "-qt-libpng"
+      "-no-framework"
+    ] else [
+      "-${lib.optionalString (compareVersion "5.9.0" < 0) "no-"}rpath"
+    ] ++ lib.optional (compareVersion "5.15.0" < 0) "-system-xcb"
+      ++ [
+      "-xcb"
+      "-qpa xcb"
+      "-L" "${libX11.out}/lib"
+      "-I" "${libX11.out}/include"
+      "-L" "${libXext.out}/lib"
+      "-I" "${libXext.out}/include"
+      "-L" "${libXrender.out}/lib"
+      "-I" "${libXrender.out}/include"
+
+      "-libinput"
+
+      ''-${lib.optionalString (cups == null) "no-"}cups''
+      "-dbus-linked"
+      "-glib"
+    ] ++ lib.optional (compareVersion "5.15.0" < 0) "-system-libjpeg"
+      ++ [
+      "-system-libpng"
+    ] ++ lib.optional withGtk3 "-gtk"
+      ++ lib.optional (compareVersion "5.9.0" >= 0) "-inotify"
+      ++ lib.optionals (compareVersion "5.10.0" >= 0) [
+      # Without these, Qt stops working on kernels < 3.17. See:
+      # https://github.com/NixOS/nixpkgs/issues/38832
+      "-no-feature-renameat2"
+      "-no-feature-getentropy"
+    ] ++ lib.optionals (compareVersion "5.12.1" < 0) [
+      # use -xkbcommon and -xkbcommon-evdev for versions before 5.12.1
+      "-system-xkbcommon"
+      "-xkbcommon-evdev"
+    ] ++ lib.optionals (cups != null) [
+      "-L" "${cups.lib}/lib"
+      "-I" "${cups.dev}/include"
+    ] ++ lib.optionals (libmysqlclient != null) [
+      "-L" "${libmysqlclient}/lib"
+      "-I" "${libmysqlclient}/include"
+    ]
+  );
+
+  # Move selected outputs.
+  postInstall = ''
+    moveToOutput "mkspecs" "$dev"
+  '';
+
+  devTools = [
+    "bin/fixqt4headers.pl"
+    "bin/moc"
+    "bin/qdbuscpp2xml"
+    "bin/qdbusxml2cpp"
+    "bin/qlalr"
+    "bin/qmake"
+    "bin/rcc"
+    "bin/syncqt.pl"
+    "bin/uic"
+  ];
+
+  postFixup = ''
+    # Don't retain build-time dependencies like gdb.
+    sed '/QMAKE_DEFAULT_.*DIRS/ d' -i $dev/mkspecs/qconfig.pri
+    fixQtModulePaths "''${!outputDev}/mkspecs/modules"
+    fixQtBuiltinPaths "''${!outputDev}" '*.pr?'
+
+    # Move development tools to $dev
+    moveQtDevTools
+    moveToOutput bin "$dev"
+
+    # fixup .pc file (where to find 'moc' etc.)
+    sed -i "$dev/lib/pkgconfig/Qt5Core.pc" \
+      -e "/^host_bins=/ c host_bins=$dev/bin"
+  '';
+
+  dontStrip = debugSymbols;
+
+  setupHook = ../hooks/qtbase-setup-hook.sh;
+
+  meta = with lib; {
+    homepage = "https://www.qt.io/";
+    description = "A cross-platform application framework for C++";
+    license = with licenses; [ fdl13 gpl2 lgpl21 lgpl3 ];
+    maintainers = with maintainers; [ qknight ttuegel periklis bkchr ];
+    platforms = platforms.unix;
+    # Qt5 is broken on aarch64-darwin
+    # the build ends up with the following error:
+    #   error: unknown target CPU 'armv8.3-a+crypto+sha2+aes+crc+fp16+lse+simd+ras+rdm+rcpc'
+    #   note: valid target CPU values are: nocona, core2, penryn, ..., znver1, znver2, x86-64
+    # it seems the qmake/cmake passes x86_64 as preferred architecture somewhere
+    broken = stdenv.isDarwin && stdenv.isAarch64;
+  };
+
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtcharts.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtcharts.nix
new file mode 100644
index 000000000000..f5d034bcc327
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtcharts.nix
@@ -0,0 +1,7 @@
+{ qtModule, qtbase, qtdeclarative }:
+
+qtModule {
+  pname = "qtcharts";
+  qtInputs = [ qtbase qtdeclarative ];
+  outputs = [ "out" "dev" "bin" ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtconnectivity.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtconnectivity.nix
new file mode 100644
index 000000000000..ae3aa25427c8
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtconnectivity.nix
@@ -0,0 +1,8 @@
+{ qtModule, lib, stdenv, qtbase, qtdeclarative, bluez }:
+
+qtModule {
+  pname = "qtconnectivity";
+  qtInputs = [ qtbase qtdeclarative ];
+  buildInputs = lib.optional stdenv.isLinux bluez;
+  outputs = [ "out" "dev" "bin" ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtdeclarative.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtdeclarative.nix
new file mode 100644
index 000000000000..89f2672c26dd
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtdeclarative.nix
@@ -0,0 +1,24 @@
+{ qtModule, lib, python3, qtbase, qtsvg }:
+
+qtModule {
+  pname = "qtdeclarative";
+  qtInputs = [ qtbase qtsvg ];
+  nativeBuildInputs = [ python3 ];
+  outputs = [ "out" "dev" "bin" ];
+  preConfigure = ''
+    NIX_CFLAGS_COMPILE+=" -DNIXPKGS_QML2_IMPORT_PREFIX=\"$qtQmlPrefix\""
+  '';
+  configureFlags = lib.optionals (lib.versionAtLeast qtbase.version "5.11.0") [ "-qml-debug" ];
+  devTools = [
+    "bin/qml"
+    "bin/qmlcachegen"
+    "bin/qmleasing"
+    "bin/qmlimportscanner"
+    "bin/qmllint"
+    "bin/qmlmin"
+    "bin/qmlplugindump"
+    "bin/qmlprofiler"
+    "bin/qmlscene"
+    "bin/qmltestrunner"
+  ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtdoc.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtdoc.nix
new file mode 100644
index 000000000000..4ef4915000e5
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtdoc.nix
@@ -0,0 +1,7 @@
+{ qtModule, qtdeclarative }:
+
+qtModule {
+  pname = "qtdoc";
+  qtInputs = [ qtdeclarative ];
+  outputs = [ "out" ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtgamepad.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtgamepad.nix
new file mode 100644
index 000000000000..147fb0745dbd
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtgamepad.nix
@@ -0,0 +1,10 @@
+{ lib, stdenv, qtModule, qtbase, qtdeclarative, GameController, pkg-config }:
+
+qtModule {
+  pname = "qtgamepad";
+  qtInputs = [ qtbase qtdeclarative ]
+    ++ lib.optional stdenv.isDarwin GameController;
+  buildInputs = [ ];
+  nativeBuildInputs = [ pkg-config ];
+  outputs = [ "out" "dev" "bin" ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtgraphicaleffects.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtgraphicaleffects.nix
new file mode 100644
index 000000000000..c90280090b8e
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtgraphicaleffects.nix
@@ -0,0 +1,7 @@
+{ qtModule, qtdeclarative }:
+
+qtModule {
+  pname = "qtgraphicaleffects";
+  qtInputs = [ qtdeclarative ];
+  outputs = [ "out" "dev" ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtimageformats.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtimageformats.nix
new file mode 100644
index 000000000000..52fa4d4ba8ff
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtimageformats.nix
@@ -0,0 +1,7 @@
+{ qtModule, qtbase, libtiff }:
+
+qtModule {
+  pname = "qtimageformats";
+  qtInputs = [ qtbase ];
+  propagatedBuildInputs = [ libtiff ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtlocation.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtlocation.nix
new file mode 100644
index 000000000000..687571f18d29
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtlocation.nix
@@ -0,0 +1,13 @@
+{ lib, stdenv, qtModule, qtbase, qtmultimedia }:
+
+qtModule {
+  pname = "qtlocation";
+  qtInputs = [ qtbase qtmultimedia ];
+  outputs = [ "bin" "out" "dev" ];
+  qmakeFlags = lib.optional stdenv.isDarwin [
+     # boost uses std::auto_ptr which has been disabled in clang with libcxx
+     # This flag re-enables this feature
+     # https://libcxx.llvm.org/docs/UsingLibcxx.html#c-17-specific-configuration-macros
+     "QMAKE_CXXFLAGS+=-D_LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR"
+  ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtmacextras.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtmacextras.nix
new file mode 100644
index 000000000000..30e363cff59a
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtmacextras.nix
@@ -0,0 +1,10 @@
+{ lib, qtModule, qtbase }:
+
+qtModule {
+  pname = "qtmacextras";
+  qtInputs = [ qtbase ];
+  meta = with lib; {
+    maintainers = with maintainers; [ periklis ];
+    platforms = platforms.darwin;
+  };
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtmultimedia.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtmultimedia.nix
new file mode 100644
index 000000000000..baf5c30e73c4
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtmultimedia.nix
@@ -0,0 +1,24 @@
+{ qtModule
+, lib
+, stdenv
+, qtbase
+, qtdeclarative
+, pkg-config
+, alsa-lib
+, gstreamer
+, gst-plugins-base
+, libpulseaudio
+, wayland
+}:
+
+qtModule {
+  pname = "qtmultimedia";
+  qtInputs = [ qtbase qtdeclarative ];
+  nativeBuildInputs = [ pkg-config ];
+  buildInputs = [ gstreamer gst-plugins-base libpulseaudio ]
+    ++ lib.optional (stdenv.isLinux) alsa-lib
+    ++ lib.optional (lib.versionAtLeast qtbase.version "5.14.0" && stdenv.isLinux) wayland;
+  outputs = [ "bin" "dev" "out" ];
+  qmakeFlags = [ "GST_VERSION=1.0" ];
+  NIX_LDFLAGS = lib.optionalString (stdenv.isDarwin) "-lobjc";
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtnetworkauth.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtnetworkauth.nix
new file mode 100644
index 000000000000..148ed890fc9e
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtnetworkauth.nix
@@ -0,0 +1,6 @@
+{ qtModule, qtbase }:
+
+qtModule {
+  pname = "qtnetworkauth";
+  qtInputs = [ qtbase ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtquickcontrols.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtquickcontrols.nix
new file mode 100644
index 000000000000..6c85a91fb78c
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtquickcontrols.nix
@@ -0,0 +1,6 @@
+{ qtModule, qtdeclarative }:
+
+qtModule {
+  pname = "qtquickcontrols";
+  qtInputs = [ qtdeclarative ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtquickcontrols2.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtquickcontrols2.nix
new file mode 100644
index 000000000000..a50ad9e2a304
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtquickcontrols2.nix
@@ -0,0 +1,7 @@
+{ qtModule, qtdeclarative }:
+
+qtModule {
+  pname = "qtquickcontrols2";
+  qtInputs = [ qtdeclarative ];
+  outputs = [ "out" "dev" "bin" ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtscript.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtscript.nix
new file mode 100644
index 000000000000..e7ce86b74a68
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtscript.nix
@@ -0,0 +1,6 @@
+{ qtModule, qtbase, qttools }:
+
+qtModule {
+  pname = "qtscript";
+  qtInputs = [ qtbase qttools ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtscxml.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtscxml.nix
new file mode 100644
index 000000000000..cf9af0bc7543
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtscxml.nix
@@ -0,0 +1,7 @@
+{ qtModule, qtbase, qtdeclarative }:
+
+qtModule {
+  pname = "qtscxml";
+  qtInputs = [ qtbase qtdeclarative ];
+  outputs = [ "out" "dev" "bin" ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtsensors.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtsensors.nix
new file mode 100644
index 000000000000..3fbd032b968f
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtsensors.nix
@@ -0,0 +1,7 @@
+{ qtModule, qtbase, qtdeclarative }:
+
+qtModule {
+  pname = "qtsensors";
+  qtInputs = [ qtbase qtdeclarative ];
+  outputs = [ "out" "dev" "bin" ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtserialbus.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtserialbus.nix
new file mode 100644
index 000000000000..4fd6d7cb83c3
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtserialbus.nix
@@ -0,0 +1,6 @@
+{ qtModule, qtbase, qtserialport }:
+
+qtModule {
+  pname = "qtserialbus";
+  qtInputs = [ qtbase qtserialport ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtserialport.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtserialport.nix
new file mode 100644
index 000000000000..89d96eb29124
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtserialport.nix
@@ -0,0 +1,7 @@
+{ qtModule, stdenv, lib, qtbase, systemd }:
+
+qtModule {
+  pname = "qtserialport";
+  qtInputs = [ qtbase ];
+  NIX_CFLAGS_COMPILE = lib.optionalString stdenv.isLinux "-DNIXPKGS_LIBUDEV=\"${lib.getLib systemd}/lib/libudev\"";
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtspeech.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtspeech.nix
new file mode 100644
index 000000000000..d2748ba8d4c5
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtspeech.nix
@@ -0,0 +1,7 @@
+{ qtModule }:
+
+qtModule {
+  pname = "qtspeech";
+  qtInputs = [ ];
+  outputs = [ "out" "dev" ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtsvg.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtsvg.nix
new file mode 100644
index 000000000000..59c7cf67448c
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtsvg.nix
@@ -0,0 +1,7 @@
+{ qtModule, qtbase }:
+
+qtModule {
+  pname = "qtsvg";
+  qtInputs = [ qtbase ];
+  outputs = [ "out" "dev" "bin" ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qttools.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qttools.nix
new file mode 100644
index 000000000000..27008f6714ed
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qttools.nix
@@ -0,0 +1,42 @@
+{ qtModule, stdenv, lib, qtbase, qtdeclarative }:
+
+qtModule {
+  pname = "qttools";
+  qtInputs = [ qtbase qtdeclarative ];
+  outputs = [ "out" "dev" "bin" ];
+
+  # fixQtBuiltinPaths overwrites a builtin path we should keep
+  postPatch = ''
+    sed -i "src/linguist/linguist.pro" \
+        -e '/^cmake_linguist_config_version_file.input =/ s|$$\[QT_HOST_DATA.*\]|${lib.getDev qtbase}|'
+    sed -i "src/qtattributionsscanner/qtattributionsscanner.pro" \
+        -e '/^cmake_qattributionsscanner_config_version_file.input =/ s|$$\[QT_HOST_DATA.*\]|${lib.getDev qtbase}|'
+  '';
+
+  devTools = [
+    "bin/qcollectiongenerator"
+    "bin/linguist"
+    "bin/assistant"
+    "bin/qdoc"
+    "bin/lconvert"
+    "bin/designer"
+    "bin/qtattributionsscanner"
+    "bin/lrelease"
+    "bin/lrelease-pro"
+    "bin/pixeltool"
+    "bin/lupdate"
+    "bin/lupdate-pro"
+    "bin/qtdiag"
+    "bin/qhelpgenerator"
+    "bin/qtplugininfo"
+    "bin/qthelpconverter"
+    "bin/lprodump"
+    "bin/qdistancefieldgenerator"
+  ] ++ lib.optionals stdenv.isDarwin [
+    "bin/macdeployqt"
+  ];
+
+  NIX_CFLAGS_COMPILE = lib.optional stdenv.isDarwin ''-DNIXPKGS_QMLIMPORTSCANNER="${qtdeclarative.dev}/bin/qmlimportscanner"'';
+
+  setupHook = ../hooks/qttools-setup-hook.sh;
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qttranslations.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qttranslations.nix
new file mode 100644
index 000000000000..f49a4eb9a85d
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qttranslations.nix
@@ -0,0 +1,6 @@
+{ qtModule, qttools }:
+
+qtModule {
+  pname = "qttranslations";
+  qtInputs = [ qttools ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtvirtualkeyboard.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtvirtualkeyboard.nix
new file mode 100644
index 000000000000..77f1948dbf43
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtvirtualkeyboard.nix
@@ -0,0 +1,6 @@
+{ qtModule, qtbase, qtdeclarative, qtsvg, hunspell  }:
+
+qtModule {
+  pname = "qtvirtualkeyboard";
+  qtInputs = [ qtbase qtdeclarative qtsvg hunspell ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtwayland.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtwayland.nix
new file mode 100644
index 000000000000..1bd1adedaf04
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtwayland.nix
@@ -0,0 +1,9 @@
+{ qtModule, qtbase, qtquickcontrols, wayland, pkg-config }:
+
+qtModule {
+  pname = "qtwayland";
+  qtInputs = [ qtbase qtquickcontrols ];
+  buildInputs = [ wayland ];
+  nativeBuildInputs = [ pkg-config ];
+  outputs = [ "out" "dev" "bin" ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebchannel.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebchannel.nix
new file mode 100644
index 000000000000..f49e9e234901
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebchannel.nix
@@ -0,0 +1,8 @@
+{ qtModule, qtbase, qtdeclarative }:
+
+qtModule {
+  pname = "qtwebchannel";
+  qtInputs = [ qtbase qtdeclarative ];
+  outputs = [ "out" "dev" "bin" ];
+}
+
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebengine.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebengine.nix
new file mode 100644
index 000000000000..68945625f5b4
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebengine.nix
@@ -0,0 +1,250 @@
+{ qtModule
+, qtdeclarative, qtquickcontrols, qtlocation, qtwebchannel
+
+, bison, coreutils, flex, git, gperf, ninja, pkg-config, python2, which
+, nodejs, qtbase, perl
+
+, xorg, libXcursor, libXScrnSaver, libXrandr, libXtst
+, fontconfig, freetype, harfbuzz, icu, dbus, libdrm
+, zlib, minizip, libjpeg, libpng, libtiff, libwebp, libopus
+, jsoncpp, protobuf, libvpx, srtp, snappy, nss, libevent
+, alsa-lib
+, libcap
+, pciutils
+, systemd
+, pipewire_0_2
+, enableProprietaryCodecs ? true
+, gn
+, cctools, libobjc, libunwind, sandbox, xnu
+, ApplicationServices, AVFoundation, Foundation, ForceFeedback, GameController, AppKit
+, ImageCaptureCore, CoreBluetooth, IOBluetooth, CoreWLAN, Quartz, Cocoa, LocalAuthentication
+, cups, openbsm, runCommand, xcbuild, writeScriptBin
+, ffmpeg ? null
+, lib, stdenv, fetchpatch
+, version ? null
+, qtCompatVersion
+}:
+
+qtModule {
+  pname = "qtwebengine";
+  qtInputs = [ qtdeclarative qtquickcontrols qtlocation qtwebchannel ];
+  nativeBuildInputs = [
+    bison coreutils flex git gperf ninja pkg-config python2 which gn nodejs
+  ] ++ lib.optional stdenv.isDarwin xcbuild;
+  doCheck = true;
+  outputs = [ "bin" "dev" "out" ];
+
+  enableParallelBuilding = true;
+
+  # Don’t use the gn setup hook
+  dontUseGnConfigure = true;
+
+  # ninja builds some components with -Wno-format,
+  # which cannot be set at the same time as -Wformat-security
+  hardeningDisable = [ "format" ];
+
+  postPatch = ''
+    # Patch Chromium build tools
+    (
+      cd src/3rdparty/chromium;
+
+      # Manually fix unsupported shebangs
+      substituteInPlace third_party/harfbuzz-ng/src/src/update-unicode-tables.make \
+        --replace "/usr/bin/env -S make -f" "/usr/bin/make -f" || true
+
+      # TODO: be more precise
+      patchShebangs .
+    )
+  ''
+  # Prevent Chromium build script from making the path to `clang` relative to
+  # the build directory.  `clang_base_path` is the value of `QMAKE_CLANG_DIR`
+  # from `src/core/config/mac_osx.pri`.
+  + lib.optionalString stdenv.isDarwin ''
+    substituteInPlace ./src/3rdparty/chromium/build/toolchain/mac/BUILD.gn \
+      --replace 'prefix = rebase_path("$clang_base_path/bin/", root_build_dir)' 'prefix = "$clang_base_path/bin/"'
+  ''
+  # Patch library paths in Qt sources
+  + ''
+    sed -i \
+      -e "s,QLibraryInfo::location(QLibraryInfo::DataPath),QLatin1String(\"$out\"),g" \
+      -e "s,QLibraryInfo::location(QLibraryInfo::TranslationsPath),QLatin1String(\"$out/translations\"),g" \
+      -e "s,QLibraryInfo::location(QLibraryInfo::LibraryExecutablesPath),QLatin1String(\"$out/libexec\"),g" \
+      src/core/web_engine_library_info.cpp
+  ''
+  # Patch library paths in Chromium sources
+  + lib.optionalString (!stdenv.isDarwin) ''
+    sed -i -e '/lib_loader.*Load/s!"\(libudev\.so\)!"${lib.getLib systemd}/lib/\1!' \
+      src/3rdparty/chromium/device/udev_linux/udev?_loader.cc
+
+    sed -i -e '/libpci_loader.*Load/s!"\(libpci\.so\)!"${pciutils}/lib/\1!' \
+      src/3rdparty/chromium/gpu/config/gpu_info_collector_linux.cc
+  '' + lib.optionalString stdenv.isDarwin (
+  (if (lib.versionAtLeast qtCompatVersion "5.14") then ''
+    substituteInPlace src/buildtools/config/mac_osx.pri \
+      --replace 'QMAKE_CLANG_DIR = "/usr"' 'QMAKE_CLANG_DIR = "${stdenv.cc}"'
+  '' else ''
+    substituteInPlace src/core/config/mac_osx.pri \
+      --replace 'QMAKE_CLANG_DIR = "/usr"' 'QMAKE_CLANG_DIR = "${stdenv.cc}"'
+  '')
+   # Following is required to prevent a build error:
+   # ninja: error: '/nix/store/z8z04p0ph48w22rqzx7ql67gy8cyvidi-SDKs/MacOSX10.12.sdk/usr/include/mach/exc.defs', needed by 'gen/third_party/crashpad/crashpad/util/mach/excUser.c', missing and no known rule to make it
+  + ''
+    substituteInPlace src/3rdparty/chromium/third_party/crashpad/crashpad/util/BUILD.gn \
+      --replace '$sysroot/usr' "${xnu}"
+  ''
+  # Apple has some secret stuff they don't share with OpenBSM
+  + (if (lib.versionAtLeast qtCompatVersion "5.14") then ''
+  substituteInPlace src/3rdparty/chromium/base/mac/mach_port_rendezvous.cc \
+    --replace "audit_token_to_pid(request.trailer.msgh_audit)" "request.trailer.msgh_audit.val[5]"
+  substituteInPlace src/3rdparty/chromium/third_party/crashpad/crashpad/util/mach/mach_message.cc \
+    --replace "audit_token_to_pid(audit_trailer->msgh_audit)" "audit_trailer->msgh_audit.val[5]"
+  '' else ''
+  substituteInPlace src/3rdparty/chromium/base/mac/mach_port_broker.mm \
+    --replace "audit_token_to_pid(msg.trailer.msgh_audit)" "msg.trailer.msgh_audit.val[5]"
+  ''));
+
+  NIX_CFLAGS_COMPILE = lib.optionals stdenv.cc.isGNU [
+    # with gcc8, -Wclass-memaccess became part of -Wall and this exceeds the logging limit
+    "-Wno-class-memaccess"
+  ] ++ lib.optionals (stdenv.hostPlatform.gcc.arch or "" == "sandybridge") [
+    # it fails when compiled with -march=sandybridge https://github.com/NixOS/nixpkgs/pull/59148#discussion_r276696940
+    # TODO: investigate and fix properly
+    "-march=westmere"
+  ] ++ lib.optionals stdenv.cc.isClang [
+    "-Wno-elaborated-enum-base"
+  ] ++ lib.optionals stdenv.isDarwin [
+    "-DMAC_OS_X_VERSION_MAX_ALLOWED=MAC_OS_X_VERSION_10_12"
+    "-DMAC_OS_X_VERSION_MIN_REQUIRED=MAC_OS_X_VERSION_10_12"
+
+    #
+    # Prevent errors like
+    # /nix/store/xxx-apple-framework-CoreData/Library/Frameworks/CoreData.framework/Headers/NSEntityDescription.h:51:7:
+    # error: pointer to non-const type 'id' with no explicit ownership
+    #     id** _kvcPropertyAccessors;
+    #
+    # TODO remove when new Apple SDK is in
+    #
+    "-fno-objc-arc"
+  ];
+
+  preConfigure = ''
+    export NINJAFLAGS=-j$NIX_BUILD_CORES
+
+    if [ -d "$PWD/tools/qmake" ]; then
+        QMAKEPATH="$PWD/tools/qmake''${QMAKEPATH:+:}$QMAKEPATH"
+    fi
+  '';
+
+  qmakeFlags = [ "--" "-system-ffmpeg" ]
+    ++ lib.optional (stdenv.isLinux && (lib.versionAtLeast qtCompatVersion "5.15")) "-webengine-webrtc-pipewire"
+    ++ lib.optional enableProprietaryCodecs "-proprietary-codecs";
+
+  propagatedBuildInputs = [
+    # Image formats
+    libjpeg libpng libtiff libwebp
+
+    # Video formats
+    srtp libvpx
+
+    # Audio formats
+    libopus
+
+    # Text rendering
+    harfbuzz icu
+
+    libevent
+    ffmpeg
+  ] ++ lib.optionals (!stdenv.isDarwin) [
+    dbus zlib minizip snappy nss protobuf jsoncpp
+
+    # Audio formats
+    alsa-lib
+
+    # Text rendering
+    fontconfig freetype
+
+    libcap
+    pciutils
+
+    # X11 libs
+    xorg.xrandr libXScrnSaver libXcursor libXrandr xorg.libpciaccess libXtst
+    xorg.libXcomposite xorg.libXdamage libdrm xorg.libxkbfile
+
+  ] ++ lib.optionals (stdenv.isLinux && (lib.versionAtLeast qtCompatVersion "5.15")) [
+    # Pipewire
+    pipewire_0_2
+  ]
+
+  # FIXME These dependencies shouldn't be needed but can't find a way
+  # around it. Chromium pulls this in while bootstrapping GN.
+  ++ lib.optionals stdenv.isDarwin [
+    libobjc
+    cctools
+
+    # frameworks
+    ApplicationServices
+    AVFoundation
+    Foundation
+    ForceFeedback
+    GameController
+    AppKit
+    ImageCaptureCore
+    CoreBluetooth
+    IOBluetooth
+    CoreWLAN
+    Quartz
+    Cocoa
+    LocalAuthentication
+
+    openbsm
+    libunwind
+  ];
+
+  buildInputs = lib.optionals stdenv.isDarwin [
+    cups
+    sandbox
+
+    # `sw_vers` is used by `src/3rdparty/chromium/build/config/mac/sdk_info.py`
+    # to get some information about the host platform.
+    (writeScriptBin "sw_vers" ''
+      #!${stdenv.shell}
+
+      while [ $# -gt 0 ]; do
+        case "$1" in
+          -buildVersion) echo "17E199";;
+        *) break ;;
+
+        esac
+        shift
+      done
+    '')
+  ];
+
+  dontUseNinjaBuild = true;
+  dontUseNinjaInstall = true;
+
+  postInstall = lib.optionalString stdenv.isLinux ''
+    cat > $out/libexec/qt.conf <<EOF
+    [Paths]
+    Prefix = ..
+    EOF
+  '' + lib.optionalString (lib.versions.majorMinor qtCompatVersion == "5.15") ''
+    # Fix for out-of-sync QtWebEngine and Qt releases (since 5.15.3)
+    sed 's/${lib.head (lib.splitString "-" version)} /${qtCompatVersion} /' -i "$out"/lib/cmake/*/*Config.cmake
+  '';
+
+  requiredSystemFeatures = [ "big-parallel" ];
+
+  meta = with lib; {
+    description = "A web engine based on the Chromium web browser";
+    maintainers = with maintainers; [ matthewbauer ];
+    platforms = platforms.unix;
+    # This build takes a long time; particularly on slow architectures
+    timeout = 24 * 3600;
+    # we are still stuck with MacOS SDK 10.12 on x86_64-darwin
+    # and qtwebengine 5.14+ requires at least SDK 10.14
+    # (qtwebengine 5.12 is fine with SDK 10.12)
+    # on aarch64-darwin we are already at MacOS SDK 11.0
+    broken = stdenv.isDarwin && stdenv.isx86_64 && (lib.versionAtLeast qtCompatVersion "5.14");
+  };
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebglplugin.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebglplugin.nix
new file mode 100644
index 000000000000..d8fd7a692370
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebglplugin.nix
@@ -0,0 +1,6 @@
+{ qtModule, qtbase, qtwebsockets }:
+
+qtModule {
+  pname = "qtwebglplugin";
+  qtInputs = [ qtbase qtwebsockets ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebkit.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebkit.nix
new file mode 100644
index 000000000000..dc9f5ccb9eb2
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebkit.nix
@@ -0,0 +1,73 @@
+{ qtModule, stdenv, lib, fetchurl
+, qtbase, qtdeclarative, qtlocation, qtmultimedia, qtsensors, qtwebchannel
+, fontconfig, libwebp, libxml2, libxslt
+, sqlite, systemd, glib, gst_all_1, cmake
+, bison, flex, gdb, gperf, perl, pkg-config, python2, ruby
+, ICU, OpenGL
+}:
+
+let
+  hyphen = stdenv.mkDerivation rec {
+    pname = "hyphen";
+    version = "2.8.8";
+    src = fetchurl {
+      url = "http://dev-www.libreoffice.org/src/5ade6ae2a99bc1e9e57031ca88d36dad-hyphen-${version}.tar.gz";
+      sha256 = "304636d4eccd81a14b6914d07b84c79ebb815288c76fe027b9ebff6ff24d5705";
+    };
+    postPatch = ''
+      patchShebangs tests
+    '';
+    buildInputs = [ perl ];
+  };
+  usingAnnulenWebkitFork = lib.versionAtLeast qtbase.version "5.11.0";
+in
+qtModule {
+  pname = "qtwebkit";
+  qtInputs = [ qtbase qtdeclarative qtlocation qtsensors ]
+    ++ lib.optional (stdenv.isDarwin && lib.versionAtLeast qtbase.version "5.9.0") qtmultimedia
+    ++ lib.optional usingAnnulenWebkitFork qtwebchannel;
+  buildInputs = [ fontconfig libwebp libxml2 libxslt sqlite glib gst_all_1.gstreamer gst_all_1.gst-plugins-base ]
+    ++ lib.optionals stdenv.isDarwin [ ICU OpenGL ]
+    ++ lib.optional usingAnnulenWebkitFork hyphen;
+  nativeBuildInputs = [
+    bison flex gdb gperf perl pkg-config python2 ruby
+  ] ++ lib.optional usingAnnulenWebkitFork cmake;
+
+  cmakeFlags = lib.optionals usingAnnulenWebkitFork ([ "-DPORT=Qt" ]
+    ++ lib.optionals stdenv.isDarwin [
+      "-DQt5Multimedia_DIR=${lib.getDev qtmultimedia}/lib/cmake/Qt5Multimedia"
+      "-DQt5MultimediaWidgets_DIR=${lib.getDev qtmultimedia}/lib/cmake/Qt5MultimediaWidgets"
+      "-DMACOS_FORCE_SYSTEM_XML_LIBRARIES=OFF"
+    ]);
+
+  # QtWebKit overrides qmake's default_pre and default_post features,
+  # so its custom qmake files must be found first at the front of QMAKEPATH.
+  preConfigure = lib.optionalString (!usingAnnulenWebkitFork) ''
+    QMAKEPATH="$PWD/Tools/qmake''${QMAKEPATH:+:}$QMAKEPATH"
+    fixQtBuiltinPaths . '*.pr?'
+    # Fix hydra's "Log limit exceeded"
+    export qmakeFlags="$qmakeFlags CONFIG+=silent"
+  '';
+
+  NIX_CFLAGS_COMPILE = [
+    # with gcc7 this warning blows the log over Hydra's limit
+    "-Wno-expansion-to-defined"
+  ]
+  # with gcc8, -Wclass-memaccess became part of -Wall and this too exceeds the logging limit
+  ++ lib.optional stdenv.cc.isGNU "-Wno-class-memaccess"
+  # with clang this warning blows the log over Hydra's limit
+  ++ lib.optional stdenv.isDarwin "-Wno-inconsistent-missing-override"
+  ++ lib.optional (!stdenv.isDarwin) ''-DNIXPKGS_LIBUDEV="${lib.getLib systemd}/lib/libudev"'';
+
+  doCheck = false; # fails 13 out of 13 tests (ctest)
+
+  # Hack to avoid TMPDIR in RPATHs.
+  preFixup = ''
+    rm -rf "$(pwd)"
+    mkdir "$(pwd)"
+  '';
+
+  meta = {
+    maintainers = with lib.maintainers; [ abbradar periklis ];
+  };
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebsockets.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebsockets.nix
new file mode 100644
index 000000000000..540fcade73c9
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebsockets.nix
@@ -0,0 +1,7 @@
+{ qtModule, qtbase, qtdeclarative }:
+
+qtModule {
+  pname = "qtwebsockets";
+  qtInputs = [ qtbase qtdeclarative ];
+  outputs = [ "out" "dev" "bin" ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebview.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebview.nix
new file mode 100644
index 000000000000..dccc3d6f81ea
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtwebview.nix
@@ -0,0 +1,12 @@
+{ lib, stdenv, qtModule, qtdeclarative, qtwebengine, CoreFoundation, WebKit }:
+
+qtModule {
+  pname = "qtwebview";
+  qtInputs = [ qtdeclarative qtwebengine ];
+  buildInputs = lib.optionals stdenv.isDarwin [
+    CoreFoundation
+    WebKit
+  ];
+  outputs = [ "out" "dev" "bin" ];
+  NIX_LDFLAGS = lib.optionalString stdenv.isDarwin "-framework CoreFoundation -framework WebKit";
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtx11extras.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtx11extras.nix
new file mode 100644
index 000000000000..ad743523bb00
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtx11extras.nix
@@ -0,0 +1,6 @@
+{ qtModule, qtbase }:
+
+qtModule {
+  pname = "qtx11extras";
+  qtInputs = [ qtbase ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/modules/qtxmlpatterns.nix b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtxmlpatterns.nix
new file mode 100644
index 000000000000..c602b1e39d2d
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/modules/qtxmlpatterns.nix
@@ -0,0 +1,7 @@
+{ qtModule, qtbase, qtdeclarative }:
+
+qtModule {
+  pname = "qtxmlpatterns";
+  qtInputs = [ qtbase qtdeclarative ];
+  devTools = [ "bin/xmlpatterns" "bin/xmlpatternsvalidator" ];
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/qt-env.nix b/nixpkgs/pkgs/development/libraries/qt-5/qt-env.nix
new file mode 100644
index 000000000000..b4a201c08cc4
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/qt-env.nix
@@ -0,0 +1,21 @@
+{ buildEnv, qtbase }: name: paths:
+
+buildEnv {
+  inherit name;
+  paths = [ qtbase ] ++ paths;
+
+  pathsToLink = [ "/bin" "/mkspecs" "/include" "/lib" "/share" ];
+  extraOutputsToInstall = [ "out" "dev" ];
+
+  postBuild = ''
+    rm "$out/bin/qmake"
+    cp "${qtbase.dev}/bin/qmake" "$out/bin"
+    cat >"$out/bin/qt.conf" <<EOF
+    [Paths]
+    Prefix = $out
+    Plugins = ${qtbase.qtPluginPrefix}
+    Qml2Imports = ${qtbase.qtQmlPrefix}
+    Documentation = ${qtbase.qtDocPrefix}
+    EOF
+  '';
+}
diff --git a/nixpkgs/pkgs/development/libraries/qt-5/qtModule.nix b/nixpkgs/pkgs/development/libraries/qt-5/qtModule.nix
new file mode 100644
index 000000000000..12a9a85c7b79
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/qt-5/qtModule.nix
@@ -0,0 +1,77 @@
+{ lib, mkDerivation, perl }:
+
+let inherit (lib) licenses maintainers platforms; in
+
+{ self, srcs, patches }:
+
+args:
+
+let
+  inherit (args) pname;
+  version = args.version or srcs.${pname}.version;
+  src = args.src or srcs.${pname}.src;
+in
+
+mkDerivation (args // {
+  inherit pname version src;
+  patches = args.patches or patches.${pname} or [];
+
+  nativeBuildInputs = (args.nativeBuildInputs or []) ++ [ perl self.qmake ];
+  propagatedBuildInputs = args.qtInputs ++ (args.propagatedBuildInputs or []);
+
+  outputs = args.outputs or [ "out" "dev" ];
+  setOutputFlags = args.setOutputFlags or false;
+
+  preHook = ''
+    . ${./hooks/move-qt-dev-tools.sh}
+    . ${./hooks/fix-qt-builtin-paths.sh}
+  '';
+
+  preConfigure = ''
+    ${args.preConfigure or ""}
+
+    fixQtBuiltinPaths . '*.pr?'
+  '' + lib.optionalString (builtins.compareVersions "5.15.0" version <= 0)
+  # Note: We use ${version%%-*} to remove any tag from the end of the version
+  # string. Version tags are added by Nixpkgs maintainers and not reflected in
+  # the source version.
+  ''
+    if [[ -z "$dontCheckQtModuleVersion" ]] \
+        && grep -q '^MODULE_VERSION' .qmake.conf 2>/dev/null \
+        && ! grep -q -F "''${version%%-*}" .qmake.conf 2>/dev/null
+    then
+      echo >&2 "error: could not find version ''${version%%-*} in .qmake.conf"
+      echo >&2 "hint: check .qmake.conf and update the package version in Nixpkgs"
+      exit 1
+    fi
+
+    if [[ -z "$dontSyncQt" && -f sync.profile ]]; then
+      syncqt.pl -version "''${version%%-*}"
+    fi
+  '';
+
+  dontWrapQtApps = args.dontWrapQtApps or true;
+
+  postFixup = ''
+    if [ -d "''${!outputDev}/lib/pkgconfig" ]; then
+        find "''${!outputDev}/lib/pkgconfig" -name '*.pc' | while read pc; do
+            sed -i "$pc" \
+                -e "/^prefix=/ c prefix=''${!outputLib}" \
+                -e "/^exec_prefix=/ c exec_prefix=''${!outputBin}" \
+                -e "/^includedir=/ c includedir=''${!outputDev}/include"
+        done
+    fi
+
+    moveQtDevTools
+
+    ${args.postFixup or ""}
+  '';
+
+  meta = {
+    homepage = "http://www.qt.io";
+    description = "A cross-platform application framework for C++";
+    license = with licenses; [ fdl13 gpl2 lgpl21 lgpl3 ];
+    maintainers = with maintainers; [ qknight ttuegel periklis bkchr ];
+    platforms = platforms.unix;
+  } // (args.meta or {});
+})