atgreen/libffi — pull request #142 by rth7680 (2014-11-13 17:20:47+00:00)
Title: Configure and testsuite cleanups

The configure changes I hope will make for better support when building inside gcc.
In particular, gcc's top-level configure can source configure.host to see if the libffi
directory is supported for the target. C.f. the similar structure for gcc/libatomic.

The testsuite changes fix both missing tests, and the near total failure using clang.