#include <math.h>
#include <GL/glew.h>
#include <GL/glut.h>
-#include <GL/glext.h>
#if !defined(GL_EXT_texture_array) && !defined(GL_MESA_texture_array)
# error "This demo requires enums for either GL_EXT_texture_array or GL_MESA_texture_array to build."