gstreamer-1.0: multiple outputs

pkgs/development/libraries/gstreamer/core/default.nix

@@ -17,6 +17,8 @@ stdenv.mkDerivation rec {
     sha256 = "1p5y9bbrhywng0prmpxv29p6jsz6vd039d49bnc98p9b45532yll";
   };
 
+  outputs = [ "dev" "out" ];
+
   nativeBuildInputs = [
     pkgconfig perl bison flex python gobjectIntrospection makeWrapper
   ];
@@ -29,5 +31,10 @@ stdenv.mkDerivation rec {
     done
   '';
 
+  preFixup = ''
+    moveToOutput "bin" "$dev"
+    moveToOutput "share/bash-completion" "$dev"
+  '';
+
   setupHook = ./setup-hook.sh;
 }