[FFmpeg-trac] #4124(build system:new): libutvideo (and decklink) fails with clang: error: invalid argument '-std=c99' not allowed with 'C++/ObjC++'

[FFmpeg]

#4124: libutvideo (and decklink) fails with clang: error: invalid argument
'-std=c99' not allowed with 'C++/ObjC++'
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             Reporter:  cehoyos      |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  build
              Version:  git-master   |  system
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
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Comment (by s172262):

 '''libutvideo.pc''' may be wrong.
 Shall you use my beta homebrew script for libutvideo 16.1.0.?
 It repair '''libutvideo.pc'''.
 https://github.com/s172262/homebrew-core/blob/utvideo/Formula/utvideo.rb

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Ticket URL: <https://trac.ffmpeg.org/ticket/4124#comment:2>
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