[MacPorts] #34094: ffmpeg: patch required to solve undefined type/function when using C++

[MacPorts]

#34094: ffmpeg: patch required to solve undefined type/function when using C++
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  Reporter:  liampg72@…   |      Owner:  dbevans
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.0.4
Resolution:               |   Keywords:
      Port:  ffmpeg       |
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Comment (by chrstphrchvz):

 The upstream change I linked to is effectively the result of upstream's
 rejection of the patch the reporter attached here; they believe user C++
 code is responsible for defining `__STDC_CONSTANT_MACROS`. See
 [https://trac.ffmpeg.org/wiki/Including%20FFmpeg%20headers%20in%20a%20C%2B%2B%20application
 wiki page "Including FFmpeg headers in a C++ application"] and
 [https://lists.libav.org/pipermail/ffmpeg-devel/2010-May/088074.html
 lengthy mailing list discussion regarding the patch].

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Ticket URL: <https://trac.macports.org/ticket/34094#comment:7>
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