gnomeExtensions.dash-to-dock: refactor

Using makeFlags instead of patching Makefile

pkgs/desktops/gnome-3/extensions/dash-to-dock/default.nix

@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
     glib gettext
   ];
 
-  patches = [ ./fix-paths.patch ];
+  makeFlags = [ "INSTALLBASE=$(out)/share/gnome-shell/extensions" ];
 
   meta = with stdenv.lib; {
     description = "A dock for the Gnome Shell";

pkgs/desktops/gnome-3/extensions/dash-to-dock/fix-paths.patch

@@ -1,17 +0,0 @@
-diff --git a/Makefile b/Makefile
-index fd29ef8..ec0376a 100644
---- a/Makefile
-+++ b/Makefile
-@@ -6,11 +6,7 @@ EXTRA_MODULES = convenience.js dash.js docking.js appIcons.js windowPreview.js i
- EXTRA_MEDIA = logo.svg
- TOLOCALIZE =  prefs.js
- MSGSRC = $(wildcard po/*.po)
--ifeq ($(strip $(DESTDIR)),)
--	INSTALLBASE = $(HOME)/.local/share/gnome-shell/extensions
--else
--	INSTALLBASE = $(DESTDIR)/usr/share/gnome-shell/extensions
--endif
-+INSTALLBASE = $(out)/share/gnome-shell/extensions
- INSTALLNAME = dash-to-dock@micxgx.gmail.com
-
- # The command line passed variable VERSION is used to set the version string