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authorWang Bin <wbsecg1@gmail.com>2017-01-09 11:52:06 +0800
committerSteven Liu <lq@chinaffmpeg.org>2017-01-09 11:52:06 +0800
commit0e8b68a2c4031e25082603ad88711be12210d41f (patch)
treec7917f042d9ef6b64791c509c07a757796511e94 /.gitattributes
parentb53b3a4f6abcc97d4cdcc1f025ef803fcfab18c6 (diff)
downloadffmpeg-0e8b68a2c4031e25082603ad88711be12210d41f.tar.gz
avutil/tile: check clock_gettime at runtime for apple platforms
clock_gettime is avalible since macOS 10.12 and iOS 10.0. Because of weak linking, clock_gettime can be build without error with new macOS/iOS sdk, but the symbol may not exist on the target system. Explicitly checking the symbol is required. https://developer.apple.com/library/content/documentation/MacOSX/Conceptual/BPFrameworks/Concepts/WeakLinking.html Signed-off-by: Wang Bin <wbsecg1@gmail.com> Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
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