[FFmpeg-cvslog] Merge commit 'a7101eb40e69ada3872ec5aebe9c5c165745fb3a'

[Clément Bœsch]

ffmpeg | branch: master | Clément Bœsch <u at pkh.me> | Mon Apr 17 09:36:26 2017 +0200| [3675f545e720dc0ea5090e53b796e8bdfc03b57a] | committer: Clément Bœsch

Merge commit 'a7101eb40e69ada3872ec5aebe9c5c165745fb3a'

* commit 'a7101eb40e69ada3872ec5aebe9c5c165745fb3a':
  configure: Simplify some library checks via check_lib()

This commit is a noop as it doesn't apply to FFmpeg:
- the nanosleep check doesn't use add_extralibs in FFmpeg
- the pthread checks check multiple functions before add the extra
  libraries

Merged-by: Clément Bœsch <u at pkh.me>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=3675f545e720dc0ea5090e53b796e8bdfc03b57a
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