// Define GL_GLEXT_PROTOTYPES so that the OpenGL extension prototypes in // "glext.h" are parsed. #define GL_GLEXT_PROTOTYPES #include <X11/Xlib.h> #include <X11/Xutil.h> #include <GL/glx.h> // Routines needed from Xlib.h and Xutil.h (placed here to avoid having // XVisualInfo generated multiple times) #ifndef _Xconst #define _Xconst const #endif /* _Xconst */