// libraries for User interface:


#ifndef NOTCL

#include <tcl.h>
#include <tk.h>

#if TK_MAJOR_VERSION==8 && TK_MINOR_VERSION>=4
#define tcl_const const
#else
#define tcl_const
#endif

#endif

#include <GL/gl.h>
#include <GL/glu.h>
#ifndef NOTCL
// #include <togl.h>
// #include "../../togl/togl.h"
#endif




// part of OpenGL 1.2, but not in Microsoft's OpenGL 1.1 header:
// GL version sould be checked at runtime
#ifndef GL_CLAMP_TO_EDGE
#define GL_CLAMP_TO_EDGE 0x812F
#endif