gnustep-quartzcore on Linux?

[Mark Aufflick]

Hi all,

Firstly, it seems that the latest commit to -quartzcore on github has 
resulted in the repo being empty? If I checkout HEAD^ everything 
appears again.

I have Opal compiled and installed ok, but when I try to compile 
gnustep-quartzcore, it fails because <GL/glu.h> can't be found. I can't 
see which gnustep- library provides that - or is that something that 
the most recent commit was meant to fix? (It talks about GNUstep fixes).

Thanks,

Mark.