Making a bunch of basic programs cross-buildable.

After this, the 'bootstrap-tools' can be cross-built.


svn path=/nixpkgs/branches/stdenv-updates/; revision=20945

pkgs/applications/editors/ed/default.nix

@@ -10,6 +10,10 @@ stdenv.mkDerivation rec {
 
   doCheck = true;
 
+  crossAttrs = {
+    compileFlags = [ "CC=${stdenv.cross.config}-gcc" ];
+  };
+
   meta = {
     description = "GNU ed, an implementation of the standard Unix editor";