[FFmpeg-trac] #7861(swscale:new): altivec compilation broken on specific setups starting with gcc 8.3

[FFmpeg]

#7861: altivec compilation broken on specific setups starting with gcc 8.3
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             Reporter:  q66          |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  swscale
              Version:  git-master   |               Resolution:
             Keywords:  ppc altivec  |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by q66):

 As I said, the original issue is not reproducible with stock ffmpeg build,
 as it's hidden by using a strict C11 mode, which disables the builtin
 "vector" keyword extension. It is reproducible in other projects that
 build their own ffmpeg (e.g. mplayer). That doesn't mean the issue is not
 there, it just means using a strict C11 mode ironically enables a very
 loose behavior of "vector" which is not in line with what is specified by
 the compiler.

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Ticket URL: <https://trac.ffmpeg.org/ticket/7861#comment:10>
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