release.
I think that should be done at the cmake setup hook, and win that for all
possible cmake packages that are built by default without optimisation flags.
Which is the cmake default behaviour if not overriden.
svn path=/nixpkgs/trunk/; revision=32561
Basically it builds, but I still don't know how to run it. I imagine the
installPhase is still too poor, but it's better than nothing.
I also added two mygui versions. That stable, and that required by Rigs of Roads (svn).
svn path=/nixpkgs/trunk/; revision=26618