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svn:author
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pkubaj
K 8
svn:date
V 27
2020-04-11T00:57:33.973767Z
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svn:log
V 299
MFH: r531390

graphics/libavif: fix build on GCC architectures

Use newer GCC to avoid error caused by -Werror:
/wrkdirs/usr/ports/graphics/libavif/work/libavif-0.6.3/src/reformat.c:316: warning: comparison is always false due to limited range of data type

Approved by:	portmgr (fix build blanket)

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