[Bug target/10901] non-local goto's don't work on darwin

[iains at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=10901

--- Comment #27 from Iain Sandoe <iains at gcc dot gnu.org> ---
patch posted.
http://gcc.gnu.org/ml/gcc-patches/2013-09/msg02066.html