Actually, there should be a symlink /usr/lib/libGL.so -> libGL.so.1 There isn't, so all applications linking against libGL.so bail out of the build process with an error message of e.g. /usr/lib/gcc/x86_64-pc-linux-gnu/3.4.3-20050110/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lGL collect2: ld returned 1 exit status This bug seems to be different from 85950, as it does not concern emulation libraries on AMD 64, but the system library.
This is easy to fix on a running system with ln -s /usr/lib/libGL.so.1 /usr/lib/libGL.so I use Software GL (MesaGL), I don't know if that's significant...
don't symlink, use opengl-update