[lld] r220326 - Use __cxa_demangle on FreeBSD to fix buildbots.

[Joerg Sonnenberger]

On Tue, Oct 21, 2014 at 04:07:55PM -0700, Rui Ueyama wrote:
> CMake (and probably also configure) thinks that cxxabi.h is not usable on
> FreeBSD so HAVE_CXXABI_H is not defined in config.h on FreeBSD. So I think
> the answer is it's not enough.

If you mean the "missing size_t" issue, that should be fixed by
adjusting the configure test to include cxxabi.h. Not with a hack like
this.

Joerg