before it didn't. Through this commit I expect the build farm to try to build kde, and see
whether this way it builds without the unusual NIX_CFLAGS_COMPILE set in the qt setup-hook.
svn path=/nixpkgs/trunk/; revision=15838
KDE4 needs their own version of qt4 (with KDE patches). I've added this version.
You could choose Trolltech version for specific package by
qt4 = qt4_alts.trolltech
or change default in configuration.nix
svn path=/nixpkgs/trunk/; revision=9458