Hi Stephen. | When I try to do a make in lib/opengl/mlton, I get the following | error. | | gcc -c GL_c.c | GL_c.c:3:18: Gl_h.h: No such file or directory | | Mike, I suspect you don't see the error on Cygwin because of | case-insensitivity. I think a simple edit of GL_c.c will fix the | problem. Thanks for that - your suggested fix checked in a minute ago. Cheers Mike Thomas.