>From the experiments with Jon before, I'm pretty sure that the crash occurs inside the garbage collector. This indicates that the heap is corrupted, probably when one of the 'gl:Xxxx' function is executed (as otherwise everything seems to run fine).
The functions in "gl.c" and "glut.c" look fine, however. What if we insert a call to (gc) between each function call, to find out at which point the heap gets corrupted? (load "@simul/gl/lib.l") (gc) (glut:Init) (gc) (glut:InitDisplayMode (| GLUT_SINGLE GLUT_RGB)) (gc) (glut:InitWindowSize 400 400) (gc) (glut:CreateWindow "Test Window") (gc) (gl:ClearColor 0.7 0.2 0.2 0.0) (gc) (gl:MatrixMode GL_PROJECTION) (gc) ... We cannot be sure that (gc) crashes immediately, though. Better would be some heap checking function. Cheers, - Alex -- UNSUBSCRIBE: mailto:picol...@software-lab.de?subject=unsubscribe