clang fails to build those with 'could not read symbols: Bad value' (cf
http://build-failures.rhaalovely.net/sparc64/2017-03-20/multimedia/gstreamer1/core.log
& ttp://build-failures.rhaalovely.net/sparc64/2017-03-20/audio/openal.log)
Fix only those as they take out a large part of the portstree for 6.1
package builds, but reasonably MODCLANG_ARCHS=* shouldnt be used unless
the compiler has been *really* tested on every platform - or clang
should be marked *BROKEN* on sparc64 & macppc, or those platforms should
be taken out of LLVM_ARCHS.
audio/mpd, textproc/link-grammar, devel/keystone and devel/cbmc are in
the same boat and fail the same.
The problem is probably fixable directly in clang for sparc64, and on
powerpc clang doesnt package anyway for 'relocation truncated to fit:
R_PPC_PLTREL24' errors:
http://build-failures.rhaalovely.net/powerpc/2017-02-16/devel/llvm.log
6cd3a66e73