jkim 38242b5502 Do not install incomplete unwind.h from clang. This header file was meant
to be a wrapper for the canonical system header file.  Unfortunately, we do
not have one (yet) and some times it is causing weird failures when clang
is used for building ports.  More complete and correct file will come from
libcxxrt in the future.

Discussed with:	dim, kib, theraven
MFC after:	1 week
2012-10-05 00:35:13 +00:00
..