furnace/extern/macports-legacy-support/include/OpenGL/gliDispatch.h

44 lines
1.5 KiB
C
Raw Normal View History

/*
* Copyright (c) 2021
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* in SDKs > 10.6 this Apple header does not include glext.h.
* Including it causes redefinition errors that are hard to
* overcome in ports, eg mesa, so we block the loading of
* glext.h here on older systems for consistent behaviour with newer systems
*
* Note: this header has no specific blocker as it may be called
* multiple times and should have the same effect each time
*/
#if MAC_OS_X_VERSION_MAX_ALLOWED < 1070
# ifdef __glext_h_
# define MACPORTS_LEGACY_SAVED_GLEXT_SET
# else
# define __glext_h_
# endif
#endif
#include_next <OpenGL/gliDispatch.h>
#if MAC_OS_X_VERSION_MAX_ALLOWED < 1070
# ifdef MACPORTS_LEGACY_SAVED_GLEXT_SET
# undef MACPORTS_LEGACY_SAVED_GLEXT_SET
# else
# undef __glext_h_
# endif
#endif