[Plib-users] sl.h and ul.h in cygwin

[Claude E. <pin...@we...>]

I just compiled PLIB1.3.1 with cygwin. everything worked fine. But then =
I wanted to compile a game by me and i got the following errors:
In file included from........ul.h:61: GL/glx: No such file or directory

In file included from........sl.h:20: #error "Port me !"