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