Saleem Abdulrasool: __terminate_handler and __unexpected_handler are defined but not used when
building against libsupc++ as the functions for which they are used are provided
by libsupc++.  Simply preprocess them away when building against libsupc++.

llvm-svn: 173165
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: f55c0db8b545cd6f89c7b96933dc8c9d2694bc46
1 file changed