2 files changed, 17 insertions, 11 deletions
diff --git a/pkgs/os-specific/linux/apparmor/default.nix b/pkgs/os-specific/linux/apparmor/default.nix
index 0bb5561e9572..c8e58dfbf6fb 100644
--- a/pkgs/os-specific/linux/apparmor/default.nix
+++ b/pkgs/os-specific/linux/apparmor/default.nix
@@ -8,6 +8,7 @@
 , swig
 , ncurses
 , pam
+, buildPackages
 }:
 
 let
@@ -29,8 +30,8 @@ let
   };
 
   prePatchCommon = ''
-    substituteInPlace ./common/Make.rules --replace "/usr/bin/pod2man" "${perl}/bin/pod2man"
-    substituteInPlace ./common/Make.rules --replace "/usr/bin/pod2html" "${perl}/bin/pod2html"
+    substituteInPlace ./common/Make.rules --replace "/usr/bin/pod2man" "${buildPackages.perl}/bin/pod2man"
+    substituteInPlace ./common/Make.rules --replace "/usr/bin/pod2html" "${buildPackages.perl}/bin/pod2html"
     substituteInPlace ./common/Make.rules --replace "/usr/include/linux/capability.h" "${linuxHeaders}/include/linux/capability.h"
     substituteInPlace ./common/Make.rules --replace "/usr/share/man" "share/man"
   '';
@@ -70,9 +71,10 @@ let
       swig
       ncurses
       which
+      perl
     ];
 
-    buildInputs = [
+    buildInputs = stdenv.lib.optionals (!stdenv.isCross) [
       perl
       python
     ];
@@ -87,11 +89,12 @@ let
     inherit patches;
 
     postPatch = "cd ./libraries/libapparmor";
-    configureFlags = "--with-python --with-perl";
+    # https://gitlab.com/apparmor/apparmor/issues/1
+    configureFlags = stdenv.lib.optionalString (!stdenv.isCross) "--with-python --with-perl";
 
-    outputs = [ "out" "python" ];
+    outputs = if stdenv.isCross then [ "out" ] else [ "out" "python" ];
 
-    postInstall = ''
+    postInstall = stdenv.lib.optionalString (!stdenv.isCross) ''
       mkdir -p $python/lib
       mv $out/lib/python* $python/lib/
     '';
diff --git a/pkgs/os-specific/linux/systemd/default.nix b/pkgs/os-specific/linux/systemd/default.nix
index 383e3c340e64..df51284689e2 100644
--- a/pkgs/os-specific/linux/systemd/default.nix
+++ b/pkgs/os-specific/linux/systemd/default.nix
@@ -9,12 +9,13 @@
 , patchelf
 , getent
 , hostPlatform
+, buildPackages
 }:
 
 assert stdenv.isLinux;
 
 let
-  pythonLxmlEnv = python3Packages.python.withPackages ( ps: with ps; [ python3Packages.lxml ]);
+  pythonLxmlEnv = buildPackages.python3Packages.python.withPackages ( ps: with ps; [ python3Packages.lxml ]);
 
 in
 
@@ -35,14 +36,16 @@ in
       [ pkgconfig intltool gperf libxslt gettext docbook_xsl docbook_xml_dtd_42 docbook_xml_dtd_45
         ninja meson
         coreutils # meson calls date, stat etc.
-        pythonLxmlEnv glibcLocales
-        patchelf getent
+        glibcLocales
+        patchelf getent m4
       ];
     buildInputs =
       [ linuxHeaders libcap kmod xz pam acl
-        /* cryptsetup */ libuuid m4 glib libgcrypt libgpgerror libidn2
+        /* cryptsetup */ libuuid glib libgcrypt libgpgerror libidn2
         libmicrohttpd kexectools libseccomp libffi audit lz4 bzip2 libapparmor
         iptables gnu-efi
+        # This is actually native, but we already pull it from buildPackages
+        pythonLxmlEnv
       ];
 
     #dontAddPrefix = true;
@@ -128,7 +131,7 @@ in
 
         for i in src/basic/generate-gperfs.py src/resolve/generate-dns_type-gperf.py src/test/generate-sym-test.py ; do
           substituteInPlace $i \
-            --replace "#!/usr/bin/env python" "#!${python3Packages.python}/bin/python"
+            --replace "#!/usr/bin/env python" "#!${buildPackages.python3Packages.python}/bin/python"
         done
 
         substituteInPlace src/journal/catalog.c \