http://bugs.winehq.org/show_bug.cgi?id=12494
--- Comment #5 from Roderick Colenbrander thunderbird2k@gmx.net 2008-04-30 12:07:32 --- There is indeed a bug in our makefiles but I think there is also something wrong on your system. The configure script unlocks GLU functions when GLU.h is found which doesn't guarantee libGLU.so is around too. When we detect libGLU.so then we also set it but for some reason libGLU wasn't found (perhaps it is not in a standard location). I just submitted a patch to load libGLU at runtime.