K 10
svn:author
V 6
jbeich
K 8
svn:date
V 27
2018-06-13T13:27:53.769566Z
K 7
svn:log
V 285
MFH: r472311

multimedia/libvpx: unbreak on powerpc*

- newer libstdc++ ABI is required by many consumers
- -mspe and -maltivec are mutually exclusive
- implement VSX detection for powerpc and powerpc64

PR:		228586
Submitted by:	jhibbits (based on)
Approved by:	ports-secteam blanket

END