+#endif /* !WGL_SWAPMULTIPLE_MAX */
+
+#elif defined(__APPLE__)
+
+#include <OpenGL/OpenGL.h>
+#include <OpenGL/CGLIOSurface.h>
+#include <OpenGL/CGLDevice.h>
+
+extern "C" {
+
+typedef int CGSConnectionID;
+typedef int CGSWindowID;
+typedef int CGSSurfaceID;