diff --git a/pkgs/applications/networking/browsers/firefox/3.6.nix b/pkgs/applications/networking/browsers/firefox/3.6.nix
index f119f301dbb7..40f22dd00dd7 100644
--- a/pkgs/applications/networking/browsers/firefox/3.6.nix
+++ b/pkgs/applications/networking/browsers/firefox/3.6.nix
@@ -97,6 +97,8 @@ rec {
       rm -f $out/bin/run-mozilla.sh
     ''; # */
 
+    enableParallelBuilding = true;
+
     meta = {
       description = "Mozilla Firefox XUL runner";
       homepage = http://www.mozilla.com/en-US/firefox/;
diff --git a/pkgs/development/libraries/gtk+/2.24.x.nix b/pkgs/development/libraries/gtk+/2.24.x.nix
index 72998c3ffa4c..e31c2186e3b2 100644
--- a/pkgs/development/libraries/gtk+/2.24.x.nix
+++ b/pkgs/development/libraries/gtk+/2.24.x.nix
@@ -15,7 +15,11 @@ stdenv.mkDerivation rec {
     sha256 = "cbed1a7b8cd1e471388a00f22557dd061334698a0c1aece11b7ed6541d115606";
   };
 
-  configureFlags = "--with-xinput=yes";
+  patches =
+    [ # Fix broken icons such as the back/forward buttons in Firefox.
+      # http://bugs.gentoo.org/339319
+      ./old-icons.patch
+    ];
 
   enableParallelBuilding = true;
   
@@ -29,6 +33,8 @@ stdenv.mkDerivation rec {
     ++ stdenv.lib.optional xineramaSupport xlibs.libXinerama
     ++ stdenv.lib.optionals cupsSupport [ cups ];
 
+  configureFlags = "--with-xinput=yes";
+
   postInstall = "rm -rf $out/share/gtk-doc";
   
   passthru = { inherit libtiff libjpeg libpng; };
diff --git a/pkgs/development/libraries/gtk+/old-icons.patch b/pkgs/development/libraries/gtk+/old-icons.patch
new file mode 100644
index 000000000000..438ff244d07f
--- /dev/null
+++ b/pkgs/development/libraries/gtk+/old-icons.patch
@@ -0,0 +1,270 @@
+diff -ru -x '*~' gtk+-2.24.0-orig//gtk/Makefile.in gtk+-2.24.0//gtk/Makefile.in
+--- gtk+-2.24.0-orig//gtk/Makefile.in	2011-01-30 05:39:20.000000000 +0100
++++ gtk+-2.24.0//gtk/Makefile.in	2011-02-14 00:06:56.000000000 +0100
+@@ -1601,7 +1601,173 @@
+ 	stock-icons/24/folder-remote.png 		\
+ 	stock-icons/24/user-home.png 			\
+ 	stock-icons/24/user-desktop.png 		\
+-	stock-icons/24/text-x-generic.png
++	stock-icons/24/text-x-generic.png		\
++	stock-icons/16/gtk-quit.png			\
++	stock-icons/16/gtk-info.png			\
++	stock-icons/16/gtk-file.png			\
++	stock-icons/16/gtk-open.png			\
++	stock-icons/16/gtk-print-preview.png		\
++	stock-icons/16/gtk-print.png			\
++	stock-icons/16/gtk-properties.png		\
++	stock-icons/16/gtk-revert-to-saved-ltr.png	\
++	stock-icons/16/gtk-revert-to-saved-rtl.png	\
++	stock-icons/16/gtk-save-as.png			\
++	stock-icons/16/gtk-new.png			\
++	stock-icons/16/gtk-harddisk.png			\
++	stock-icons/16/gtk-clear.png			\
++	stock-icons/16/gtk-copy.png			\
++	stock-icons/16/gtk-cut.png			\
++	stock-icons/16/gtk-delete.png			\
++	stock-icons/16/gtk-find-and-replace.png		\
++	stock-icons/16/gtk-find.png			\
++	stock-icons/16/gtk-paste.png			\
++	stock-icons/16/gtk-redo-ltr.png			\
++	stock-icons/16/gtk-redo-rtl.png			\
++	stock-icons/16/gtk-select-all.png		\
++	stock-icons/16/gtk-undo-ltr.png			\
++	stock-icons/16/gtk-undo-rtl.png			\
++	stock-icons/16/gtk-directory.png		\
++	stock-icons/16/gtk-unindent-ltr.png		\
++	stock-icons/16/gtk-unindent-rtl.png		\
++	stock-icons/16/gtk-indent-ltr.png		\
++	stock-icons/16/gtk-indent-rtl.png		\
++	stock-icons/16/gtk-justify-center.png		\
++	stock-icons/16/gtk-justify-fill.png		\
++	stock-icons/16/gtk-justify-left.png		\
++	stock-icons/16/gtk-justify-right.png		\
++	stock-icons/16/gtk-bold.png			\
++	stock-icons/16/gtk-italic.png			\
++	stock-icons/16/gtk-strikethrough.png		\
++	stock-icons/16/gtk-underline.png		\
++	stock-icons/16/gtk-goto-bottom.png		\
++	stock-icons/16/gtk-go-down.png			\
++	stock-icons/16/gtk-goto-first-ltr.png		\
++	stock-icons/16/gtk-home.png			\
++	stock-icons/16/gtk-jump-to-ltr.png		\
++	stock-icons/16/gtk-jump-to-rtl.png		\
++	stock-icons/16/gtk-goto-last-ltr.png		\
++	stock-icons/16/gtk-go-forward-ltr.png		\
++	stock-icons/16/gtk-go-back-ltr.png		\
++	stock-icons/16/gtk-goto-top.png			\
++	stock-icons/16/gtk-go-up.png			\
++	stock-icons/16/gtk-about.png			\
++	stock-icons/16/gtk-help.png			\
++	stock-icons/16/gtk-missing-image.png		\
++	stock-icons/16/gtk-add.png			\
++	stock-icons/16/gtk-remove.png			\
++	stock-icons/16/gtk-floppy.png			\
++	stock-icons/16/gtk-cdrom.png			\
++	stock-icons/16/gtk-media-pause.png		\
++	stock-icons/16/gtk-media-play-ltr.png		\
++	stock-icons/16/gtk-media-play-rtl.png		\
++	stock-icons/16/gtk-media-stop.png		\
++	stock-icons/16/gtk-media-record.png		\
++	stock-icons/16/gtk-media-rewind-ltr.png		\
++	stock-icons/16/gtk-media-forward-ltr.png	\
++	stock-icons/16/gtk-media-previous-ltr.png	\
++	stock-icons/16/gtk-media-next-ltr.png		\
++	stock-icons/16/gtk-network.png			\
++	stock-icons/16/gtk-print-error.png		\
++	stock-icons/16/gtk-print-report.png		\
++	stock-icons/16/gtk-print-paused.png		\
++	stock-icons/16/gtk-print-warning.png		\
++	stock-icons/16/gtk-stop.png			\
++	stock-icons/16/gtk-execute.png			\
++	stock-icons/16/gtk-spell-check.png		\
++	stock-icons/16/gtk-fullscreen.png		\
++	stock-icons/16/gtk-refresh.png			\
++	stock-icons/16/gtk-leave-fullscreen.png		\
++	stock-icons/16/gtk-sort-ascending.png		\
++	stock-icons/16/gtk-sort-descending.png		\
++	stock-icons/16/gtk-close.png			\
++	stock-icons/16/gtk-zoom-fit.png			\
++	stock-icons/16/gtk-zoom-in.png			\
++	stock-icons/16/gtk-zoom-100.png			\
++	stock-icons/16/gtk-zoom-out.png			\
++	stock-icons/24/gtk-quit.png			\
++	stock-icons/24/gtk-info.png			\
++	stock-icons/24/gtk-file.png			\
++	stock-icons/24/gtk-open.png			\
++	stock-icons/24/gtk-print-preview.png		\
++	stock-icons/24/gtk-print.png			\
++	stock-icons/24/gtk-properties.png		\
++	stock-icons/24/gtk-revert-to-saved-ltr.png	\
++	stock-icons/24/gtk-revert-to-saved-rtl.png	\
++	stock-icons/24/gtk-save-as.png			\
++	stock-icons/24/gtk-new.png			\
++	stock-icons/24/gtk-harddisk.png			\
++	stock-icons/24/gtk-clear.png			\
++	stock-icons/24/gtk-copy.png			\
++	stock-icons/24/gtk-cut.png			\
++	stock-icons/24/gtk-delete.png			\
++	stock-icons/24/gtk-find-and-replace.png		\
++	stock-icons/24/gtk-find.png			\
++	stock-icons/24/gtk-paste.png			\
++	stock-icons/24/gtk-redo-ltr.png			\
++	stock-icons/24/gtk-redo-rtl.png			\
++	stock-icons/24/gtk-select-all.png		\
++	stock-icons/24/gtk-undo-ltr.png			\
++	stock-icons/24/gtk-undo-rtl.png			\
++	stock-icons/24/gtk-directory.png		\
++	stock-icons/24/gtk-unindent-ltr.png		\
++	stock-icons/24/gtk-unindent-rtl.png		\
++	stock-icons/24/gtk-indent-ltr.png		\
++	stock-icons/24/gtk-indent-rtl.png		\
++	stock-icons/24/gtk-justify-center.png		\
++	stock-icons/24/gtk-justify-fill.png		\
++	stock-icons/24/gtk-justify-left.png		\
++	stock-icons/24/gtk-justify-right.png		\
++	stock-icons/24/gtk-bold.png			\
++	stock-icons/24/gtk-italic.png			\
++	stock-icons/24/gtk-strikethrough.png		\
++	stock-icons/24/gtk-underline.png		\
++	stock-icons/24/gtk-goto-bottom.png		\
++	stock-icons/24/gtk-go-down.png			\
++	stock-icons/24/gtk-goto-first-ltr.png		\
++	stock-icons/24/gtk-home.png			\
++	stock-icons/24/gtk-jump-to-ltr.png		\
++	stock-icons/24/gtk-jump-to-rtl.png		\
++	stock-icons/24/gtk-goto-last-ltr.png		\
++	stock-icons/24/gtk-go-forward-ltr.png		\
++	stock-icons/24/gtk-go-back-ltr.png		\
++	stock-icons/24/gtk-goto-top.png			\
++	stock-icons/24/gtk-go-up.png			\
++	stock-icons/24/gtk-about.png			\
++	stock-icons/24/gtk-help.png			\
++	stock-icons/24/gtk-missing-image.png		\
++	stock-icons/24/gtk-add.png			\
++	stock-icons/24/gtk-remove.png			\
++	stock-icons/24/gtk-floppy.png			\
++	stock-icons/24/gtk-cdrom.png			\
++	stock-icons/24/gtk-media-pause.png		\
++	stock-icons/24/gtk-media-play-ltr.png		\
++	stock-icons/24/gtk-media-play-rtl.png		\
++	stock-icons/24/gtk-media-stop.png		\
++	stock-icons/24/gtk-media-record.png		\
++	stock-icons/24/gtk-media-rewind-ltr.png		\
++	stock-icons/24/gtk-media-forward-ltr.png	\
++	stock-icons/24/gtk-media-previous-ltr.png	\
++	stock-icons/24/gtk-media-next-ltr.png		\
++	stock-icons/24/gtk-network.png			\
++	stock-icons/24/gtk-print-error.png		\
++	stock-icons/24/gtk-print-report.png		\
++	stock-icons/24/gtk-print-paused.png		\
++	stock-icons/24/gtk-print-warning.png		\
++	stock-icons/24/gtk-stop.png			\
++	stock-icons/24/gtk-execute.png			\
++	stock-icons/24/gtk-spell-check.png		\
++	stock-icons/24/gtk-fullscreen.png		\
++	stock-icons/24/gtk-refresh.png			\
++	stock-icons/24/gtk-leave-fullscreen.png		\
++	stock-icons/24/gtk-sort-ascending.png		\
++	stock-icons/24/gtk-sort-descending.png		\
++	stock-icons/24/gtk-close.png			\
++	stock-icons/24/gtk-zoom-fit.png			\
++	stock-icons/24/gtk-zoom-in.png			\
++	stock-icons/24/gtk-zoom-100.png			\
++	stock-icons/24/gtk-zoom-out.png			\
++	stock-icons/48/gtk-dialog-error.png
++
+ 
+ @CROSS_COMPILING_FALSE@gtk_update_icon_cache_program = \
+ @CROSS_COMPILING_FALSE@	   ./gtk-update-icon-cache
+@@ -2873,7 +3039,91 @@
+ 	   && $(LN_S) folder.png user-desktop.png 			\
+ 	   && $(RM) text-x-generic.png 					\
+ 	   && $(LN_S) document-x-generic.png text-x-generic.png 	\
++	   && $(LN_S) application-exit.png gtk-quit.png			\
++	   && $(LN_S) dialog-information.png gtk-info.png			\
++	   && $(LN_S) document-new.png gtk-file.png			\
++	   && $(LN_S) document-open.png gtk-open.png			\
++	   && $(LN_S) document-print-preview.png gtk-print-preview.png			\
++	   && $(LN_S) document-print.png gtk-print.png			\
++	   && $(LN_S) document-properties.png gtk-properties.png			\
++	   && $(LN_S) document-revert-ltr.png gtk-revert-to-saved-ltr.png			\
++	   && $(LN_S) document-revert-rtl.png gtk-revert-to-saved-rtl.png			\
++	   && $(LN_S) document-save-as.png gtk-save-as.png			\
++	   && $(LN_S) document-x-generic.png gtk-new.png			\
++	   && $(LN_S) drive-harddisk.png gtk-harddisk.png			\
++	   && $(LN_S) edit-clear.png gtk-clear.png			\
++	   && $(LN_S) edit-copy.png gtk-copy.png			\
++	   && $(LN_S) edit-cut.png gtk-cut.png			\
++	   && $(LN_S) edit-delete.png gtk-delete.png			\
++	   && $(LN_S) edit-find-replace.png gtk-find-and-replace.png			\
++	   && $(LN_S) edit-find.png gtk-find.png			\
++	   && $(LN_S) edit-paste.png gtk-paste.png			\
++	   && $(LN_S) edit-redo-ltr.png gtk-redo-ltr.png			\
++	   && $(LN_S) edit-redo-rtl.png gtk-redo-rtl.png			\
++	   && $(LN_S) edit-select-all.png gtk-select-all.png			\
++	   && $(LN_S) edit-undo-ltr.png gtk-undo-ltr.png			\
++	   && $(LN_S) edit-undo-rtl.png gtk-undo-rtl.png			\
++	   && $(LN_S) folder.png gtk-directory.png			\
++	   && $(LN_S) format-indent-less-ltr.png gtk-unindent-ltr.png			\
++	   && $(LN_S) format-indent-less-rtl.png gtk-unindent-rtl.png			\
++	   && $(LN_S) format-indent-more-ltr.png gtk-indent-ltr.png			\
++	   && $(LN_S) format-indent-more-rtl.png gtk-indent-rtl.png			\
++	   && $(LN_S) format-justify-center.png gtk-justify-center.png			\
++	   && $(LN_S) format-justify-fill.png gtk-justify-fill.png			\
++	   && $(LN_S) format-justify-left.png gtk-justify-left.png			\
++	   && $(LN_S) format-justify-right.png gtk-justify-right.png			\
++	   && $(LN_S) format-text-bold.png gtk-bold.png			\
++	   && $(LN_S) format-text-italic.png gtk-italic.png			\
++	   && $(LN_S) format-text-strikethrough.png gtk-strikethrough.png			\
++	   && $(LN_S) format-text-underline.png gtk-underline.png			\
++	   && $(LN_S) go-bottom.png gtk-goto-bottom.png			\
++	   && $(LN_S) go-down.png gtk-go-down.png			\
++	   && $(LN_S) go-first-ltr.png gtk-goto-first-ltr.png			\
++	   && $(LN_S) go-home.png gtk-home.png			\
++	   && $(LN_S) go-jump-ltr.png gtk-jump-to-ltr.png			\
++	   && $(LN_S) go-jump-rtl.png gtk-jump-to-rtl.png			\
++	   && $(LN_S) go-last-ltr.png gtk-goto-last-ltr.png			\
++	   && $(LN_S) go-next-ltr.png gtk-go-forward-ltr.png			\
++	   && $(LN_S) go-previous-ltr.png gtk-go-back-ltr.png			\
++	   && $(LN_S) go-top.png gtk-goto-top.png			\
++	   && $(LN_S) go-up.png gtk-go-up.png			\
++	   && $(LN_S) help-about.png gtk-about.png			\
++	   && $(LN_S) help-contents.png gtk-help.png			\
++	   && $(LN_S) image-missing.png gtk-missing-image.png			\
++	   && $(LN_S) list-add.png gtk-add.png			\
++	   && $(LN_S) list-remove.png gtk-remove.png			\
++	   && $(LN_S) media-floppy.png gtk-floppy.png			\
++	   && $(LN_S) media-optical.png gtk-cdrom.png			\
++	   && $(LN_S) media-playback-pause.png gtk-media-pause.png			\
++	   && $(LN_S) media-playback-start-ltr.png gtk-media-play-ltr.png			\
++	   && $(LN_S) media-playback-start-rtl.png gtk-media-play-rtl.png			\
++	   && $(LN_S) media-playback-stop.png gtk-media-stop.png			\
++	   && $(LN_S) media-record.png gtk-media-record.png			\
++	   && $(LN_S) media-seek-backward-ltr.png gtk-media-rewind-ltr.png			\
++	   && $(LN_S) media-seek-forward-ltr.png gtk-media-forward-ltr.png			\
++	   && $(LN_S) media-skip-backward-ltr.png gtk-media-previous-ltr.png			\
++	   && $(LN_S) media-skip-forward-ltr.png gtk-media-next-ltr.png			\
++	   && $(LN_S) network-idle.png gtk-network.png			\
++	   && $(LN_S) printer-error.png gtk-print-error.png			\
++	   && $(LN_S) printer-info.png gtk-print-report.png			\
++	   && $(LN_S) printer-paused.png gtk-print-paused.png			\
++	   && $(LN_S) printer-warning.png gtk-print-warning.png			\
++	   && $(LN_S) process-stop.png gtk-stop.png			\
++	   && $(LN_S) system-run.png gtk-execute.png			\
++	   && $(LN_S) tools-check-spelling.png gtk-spell-check.png			\
++	   && $(LN_S) view-fullscreen.png gtk-fullscreen.png			\
++	   && $(LN_S) view-refresh.png gtk-refresh.png			\
++	   && $(LN_S) view-restore.png gtk-leave-fullscreen.png			\
++	   && $(LN_S) view-sort-ascending.png gtk-sort-ascending.png			\
++	   && $(LN_S) view-sort-descending.png gtk-sort-descending.png			\
++	   && $(LN_S) window-close.png gtk-close.png			\
++	   && $(LN_S) zoom-fit-best.png gtk-zoom-fit.png			\
++	   && $(LN_S) zoom-in.png gtk-zoom-in.png			\
++	   && $(LN_S) zoom-original.png gtk-zoom-100.png			\
++	   && $(LN_S) zoom-out.png gtk-zoom-out.png			\
+ 	) done 								\
++	&& (cd stock-icons/48						\
++	   && $(LN_S) dialog-error.png gtk-dialog-error.png)		\
+ 	&& touch stamp-icons
+ 
+ gtkbuiltincache.h: @REBUILD@ stamp-icons