[Bug target/67973] All the tests for -gstabs* fail on x86_64-apple-darwin14 with Xcode 7

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67973

--- Comment #15 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Could the fix be back ported to the gcc5 branch?