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| author | Derek Buitenhuis <derek.buitenhuis@gmail.com> | 2017-08-24 21:00:01 +0100 |
|---|---|---|
| committer | Derek Buitenhuis <derek.buitenhuis@gmail.com> | 2017-08-25 13:44:57 +0100 |
| commit | add7b3bc3fb7685cd0a3ccffd2b09cc0e32c39ec (patch) | |
| tree | 286730962b85046b0675fcfe0b53afc14c825b2b | |
| parent | 9e02f35f6a1b27090fa2679e9a3897ecdf144b2a (diff) | |
| download | ffmpeg-add7b3bc3fb7685cd0a3ccffd2b09cc0e32c39ec.tar.gz | |
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>
| -rw-r--r-- | libswscale/utils.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/libswscale/utils.c b/libswscale/utils.c index b75510d206..dcab707de6 100644 --- a/libswscale/utils.c +++ b/libswscale/utils.c @@ -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 */ { |