lavu/libm: add copysign hack

Multimedia / FFmpeg - Ganesh Ajjanagadde [gmail.com] - 19 December 2015 16:05 UTC

For systems with broken libms. Tested with NAN, -NAN, INFINITY, -INFINITY, +/-x for regular double x and combinations of these.

Old versions of MSVC need some UINT64_C hackery.

062e3e2 lavu/libm: add copysign hack
configure | 2 +-
libavutil/libm.h | 9 +++++++++
2 files changed, 10 insertions(+), 1 deletion(-)

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