ffmpeg/libavutil/attributes_internal.h

35 lines
1.3 KiB
C

/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_ATTRIBUTES_INTERNAL_H
#define AVUTIL_ATTRIBUTES_INTERNAL_H
#include "attributes.h"
#if (AV_GCC_VERSION_AT_LEAST(4,0) || defined(__clang__)) && (defined(__ELF__) || defined(__MACH__))
# define attribute_visibility_hidden __attribute__((visibility("hidden")))
# define FF_VISIBILITY_PUSH_HIDDEN _Pragma("GCC visibility push(hidden)")
# define FF_VISIBILITY_POP_HIDDEN _Pragma("GCC visibility pop")
#else
# define attribute_visibility_hidden
# define FF_VISIBILITY_PUSH_HIDDEN
# define FF_VISIBILITY_POP_HIDDEN
#endif
#endif /* AVUTIL_ATTRIBUTES_INTERNAL_H */