text: 
  #ifndef GL_STUFF
  #define GL_STUFF
  
  #include <GLsdk/gl.h>
  #include <GLsdk/glprocs.h>
  #include <GL/glu.h>
  
  /* 
   * gluBuild3DMipmaps is missing in
   * the GLU lib shipped with Windows.
   */
  #ifdef WIN32
  #include <glu/mipmap3D.h>
  #endif
  
  #endif
  