1 /* 2 * GStreamer 3 * Copyright (C) 2020 Matthew Waters <matthew@centricular.com> 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public 16 * License along with this library; if not, write to the 17 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 */ 20 21 #include <gst/gl/gstglconfig.h> 22 23 /* The glext.h guard was renamed in 2018, but some software which 24 * includes their own copy of the GL headers (such as qt) might have 25 * older version which use the old guard. This would result in the 26 * header being included again (and symbols redefined). 27 * 28 * To avoid this, we define the "old" guard if the "new" guard is 29 * defined.*/ 30 #if GST_GL_HAVE_OPENGL 31 #ifdef __gl_glext_h_ 32 #ifndef __glext_h_ 33 #define __glext_h_ 1 34 #endif 35 #endif 36 #endif 37