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pkubaj
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2020-07-09T11:54:38.616635Z
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V 484
MFH: r541745

graphics/exiv2: fix build on ARM and PPC platforms

exiv2 added -fcf-protection, which is not supported on either ARM or PPC.
https://github.com/Exiv2/exiv2/commit/1ea63ccb345a4498b41cb8842622ba7ecc9fd484 fixes that but only for ARM.

Merge this commit and add modify it to also fix PPC. This is likely the wrong approach, since -fcf-protection seems to be available only on amd64, but this is the approach that upstream chose.

Approved by:	portmgr (fix build blanket)

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