1 files changed, 11 insertions, 13 deletions
diff --git a/nixpkgs/pkgs/development/libraries/nss/generic.nix b/nixpkgs/pkgs/development/libraries/nss/generic.nix
index 592dbffbdffc..82bbd2f4a13f 100644
--- a/nixpkgs/pkgs/development/libraries/nss/generic.nix
+++ b/nixpkgs/pkgs/development/libraries/nss/generic.nix
@@ -1,7 +1,7 @@
-{ version, hash }:
+{ version, hash, github ? false }:
 { lib
 , stdenv
-, fetchurl
+, fetchFromGitHub
 , nspr
 , perl
 , zlib
@@ -26,8 +26,10 @@ stdenv.mkDerivation rec {
   pname = "nss";
   inherit version;
 
-  src = fetchurl {
-    url = "mirror://mozilla/security/nss/releases/NSS_${underscoreVersion}_RTM/src/${pname}-${version}.tar.gz";
+  src = fetchFromGitHub {
+    owner = "nss-dev";
+    repo = "nss";
+    rev = "NSS_${lib.replaceStrings ["."] ["_"] version}_RTM";
     inherit hash;
   };
 
@@ -50,25 +52,21 @@ stdenv.mkDerivation rec {
     ./remove-c25519-support.patch
   ];
 
-  patchFlags = [ "-p0" ];
-
   postPatch = ''
-    patchShebangs nss
+    patchShebangs .
 
-    for f in nss/coreconf/config.gypi nss/build.sh; do
+    for f in coreconf/config.gypi build.sh; do
       substituteInPlace "$f" --replace "/usr/bin/env" "${buildPackages.coreutils}/bin/env"
     done
 
-    substituteInPlace nss/coreconf/config.gypi --replace "/usr/bin/grep" "${buildPackages.coreutils}/bin/env grep"
+    substituteInPlace coreconf/config.gypi --replace "/usr/bin/grep" "${buildPackages.coreutils}/bin/env grep"
   '' + lib.optionalString stdenv.hostPlatform.isDarwin ''
-    substituteInPlace nss/coreconf/Darwin.mk --replace '@executable_path/$(notdir $@)' "$out/lib/\$(notdir \$@)"
-    substituteInPlace nss/coreconf/config.gypi --replace "'DYLIB_INSTALL_NAME_BASE': '@executable_path'" "'DYLIB_INSTALL_NAME_BASE': '$out/lib'"
+    substituteInPlace coreconf/Darwin.mk --replace '@executable_path/$(notdir $@)' "$out/lib/\$(notdir \$@)"
+    substituteInPlace coreconf/config.gypi --replace "'DYLIB_INSTALL_NAME_BASE': '@executable_path'" "'DYLIB_INSTALL_NAME_BASE': '$out/lib'"
   '';
 
   outputs = [ "out" "dev" "tools" ];
 
-  preConfigure = "cd nss";
-
   buildPhase =
     let
       getArch = platform: