[Bug target/63610] OSX 10.10 (Yosemite) segfault in MPIR testsuite with -O0 or -O1

[vbraun.name at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63610

--- Comment #8 from Volker Braun <vbraun.name at gmail dot com> ---
Another workaround is to set MACOSX_DEPLOYMENT_TARGET=10.9

Libtool-2.4.3 will have the fix, gcc (and everybody else) should just
reconfigure when its out.

http://lists.gnu.org/archive/html/libtool/2014-10/msg00001.html