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#include <stdio.h>
#if defined(HAVE_FREEGLUT)
#ifdef WIN32
#include "../include/GL/freeglut.h"
#else
#include <GL/freeglut.h>
#endif
#else
#ifdef __APPLE__
/* NB: not ideal -- this assumes that we always build with AGL interface on Mac OS X
* Ideally, the flag HAVE_AGL_GLUT should be set appropriately by Makefile.PL when building glversion
* and used to check here, but this will require substantial changes to the get_extensions() there
*/
#include <GLUT/glut.h>
#else
#include <GL/glut.h>
#endif
#endif
#define PROGRAM "glversion"
int main(int argc, char **argv)
{
char *version = NULL;
char *vendor = NULL;
char *renderer = NULL;
char *extensions = NULL;
GLuint idWindow = 0;
int glutVersion;
glutInit(&argc, argv);
glutInitWindowSize(1,1);
glutInitDisplayMode(GLUT_RGBA);
idWindow = glutCreateWindow(PROGRAM);
glutHideWindow();
glutVersion = glutGet(0x01FC);
version = (char*)glGetString(GL_VERSION);
vendor = (char*)glGetString(GL_VENDOR);
renderer = (char*)glGetString(GL_RENDERER);
extensions = (char*)glGetString(GL_EXTENSIONS);
printf("GLUT=%d\nVERSION=%s\nVENDOR=%s\nRENDERER=%s\nEXTENSIONS=%s\n",
glutVersion,version,vendor,renderer,extensions);
glutDestroyWindow(idWindow);
return(0);
}