K 10
svn:author
V 6
pkubaj
K 8
svn:date
V 27
2020-01-27T22:01:49.286014Z
K 7
svn:log
V 321
graphics/openimageio: fix build on powerpc64 elfv2

Change if to explicit ifdef to prevent:
/wrkdirs/usr/ports/graphics/openimageio/work/oiio-Release-2.0.10/src/libutil/ustring.cpp:328:27: error: expected value in expression
#    if _LIBCPP_BIG_ENDIAN

PR:		242134
Approved by:	FreeBSD@ShaneWare.Biz (maintainer timeout)

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