Merge pull request #3653 from iyzsong/nixos/xfce4-mixer

nixos: don't set variables for gstreamer-0.10 (fix #3652)

nixos/modules/programs/environment.nix

@@ -47,7 +47,6 @@ in
         TERMINFO_DIRS = [ "${i}/share/terminfo" ];
         PERL5LIB = [ "${i}/lib/perl5/site_perl" ];
         ALSA_PLUGIN_DIRS = [ "${i}/lib/alsa-lib" ];
-        GST_PLUGIN_SYSTEM_PATH = [ "${i}/lib/gstreamer-0.10" ];
         KDEDIRS = [ "${i}" ];
         STRIGI_PLUGIN_PATH = [ "${i}/lib/strigi/" ];
         QT_PLUGIN_PATH = [ "${i}/lib/qt4/plugins" "${i}/lib/kde4/plugins" ];

nixos/modules/services/x11/desktop-managers/xfce.nix

@@ -34,10 +34,6 @@ in
             # Set GTK_DATA_PREFIX so that GTK+ can find the Xfce themes.
             export GTK_DATA_PREFIX=${config.system.path}
 
-            # Necessary to get xfce4-mixer to find GST's ALSA plugin.
-            # Ugly.
-            export GST_PLUGIN_PATH=${config.system.path}/lib
-
             exec ${pkgs.stdenv.shell} ${pkgs.xfce.xinitrc}
           '';
       };

pkgs/desktops/xfce/applications/xfce4-mixer.nix

@@ -1,5 +1,7 @@
-{ stdenv, fetchurl, pkgconfig, intltool, glib, gstreamer, gst_plugins_base, gtk
-, libxfce4util, libxfce4ui, xfce4panel, xfconf, libunique?null }:
+{ stdenv, fetchurl, pkgconfig, intltool, makeWrapper
+, glib, gstreamer, gst_plugins_base, gtk
+, libxfce4util, libxfce4ui, xfce4panel, xfconf, libunique ? null
+}:
 
 let
   # The usual Gstreamer plugins package has a zillion dependencies
@@ -23,13 +25,13 @@ stdenv.mkDerivation rec {
 
   buildInputs =
     [ pkgconfig intltool glib gstreamer gst_plugins_minimal gtk
-      libxfce4util libxfce4ui xfce4panel xfconf libunique
+      libxfce4util libxfce4ui xfce4panel xfconf libunique makeWrapper
     ];
 
   postInstall =
     ''
-      mkdir -p $out/nix-support
-      echo ${gst_plugins_minimal} > $out/nix-support/propagated-user-env-packages
+      wrapProgram "$out/bin/xfce4-mixer" \
+        --prefix GST_PLUGIN_SYSTEM_PATH : "$GST_PLUGIN_SYSTEM_PATH"
     '';
 
   meta = {