[Bug driver/70132] ARM -mcpu=native can cause a double free abort.

[ktkachov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70132

--- Comment #3 from ktkachov at gcc dot gnu.org ---
Proposed patch at:
https://gcc.gnu.org/ml/gcc-patches/2016-03/msg00700.html

Can you give it a shot?