Go to the documentation of this file. 26 #if !defined(_WIN32) && (defined(__WIN32__) || defined(WIN32) || defined(__CYGWIN__)) 30 #if defined(__APPLE__) || defined(MACOSX) 31 # define GL_GLEXT_PROTOTYPES 32 # include <OpenGL/gl.h> 36 # define GL_GLEXT_PROTOTYPES