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// Copyright (c) 2006
// Utrecht University (The Netherlands),
// ETH Zurich (Switzerland),
// INRIA Sophia-Antipolis (France),
// Max-Planck-Institute Saarbruecken (Germany),
// and Tel-Aviv University (Israel). All rights reserved.
//
// This file is part of CGAL (www.cgal.org)
//
// $URL$
// $Id$
// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
//
//
// Author(s) : Sylvain Pion
// Tests if OPEN GL and GLU are available.
#ifdef _MSC_VER
# include <wtypes.h>
# include <wingdi.h>
#endif
#ifdef __APPLE__
# include <OpenGL/gl.h>
# include <OpenGL/glu.h>
#else
# include <GL/gl.h>
# include <GL/glu.h>
#endif
#include <iostream>
// The following global variable is needed otherwise GCC removes the body of
// the if() blocks which removes its purpose of link check.
bool execute = false;
int main()
{
if (execute) {
// This needs an active GL context, so not executed, but serves
// as a link test.
(void) glGetString(GL_VERSION);
(void) gluGetString(GLU_VERSION);
}
std::cout << "version=" <<
#if defined GL_VERSION_2_1
"2.1"
#elif defined GL_VERSION_2_0
"2.0"
#elif defined GL_VERSION_1_5
"1.5"
#elif defined GL_VERSION_1_4
"1.4"
#elif defined GL_VERSION_1_3
"1.3"
#elif defined GL_VERSION_1_2
"1.2"
#elif defined GL_VERSION_1_1
"1.1"
#elif defined GL_VERSION_1_0
"1.0"
#else
"unknown"
#endif
<< std::endl;
return 0;
}
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