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utils: Do not expand a macro with 'defined' in it

Fixes:

    libswscale/utils.c:1632:5: warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined]
    #if USE_MMAP
        ^
    libswscale/utils.c:1577:49: note: expanded from macro 'USE_MMAP'
    #define USE_MMAP (HAVE_MMAP && HAVE_MPROTECT && defined MAP_ANONYMOUS)
                                                    ^
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
tags/n3.4
Derek Buitenhuis 7 years ago
parent
commit
add7b3bc3f
1 changed files with 5 additions and 1 deletions
  1. +5
    -1
      libswscale/utils.c

+ 5
- 1
libswscale/utils.c View File

@@ -1574,7 +1574,11 @@ av_cold int sws_init_context(SwsContext *c, SwsFilter *srcFilter,
}
}

#define USE_MMAP (HAVE_MMAP && HAVE_MPROTECT && defined MAP_ANONYMOUS)
#if HAVE_MMAP && HAVE_MPROTECT && defined(MAP_ANONYMOUS)
#define USE_MMAP 1
#else
#define USE_MMAP 0
#endif

/* precalculate horizontal scaler filter coefficients */
{


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