https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68744
--- Comment #4 from dave.anglin at bell dot net --- On 2015-12-11 6:45 AM, dominiq at lps dot ens.fr wrote: > Is this PR fixed by revision r231485? No. It just fixed the undefined __sync function warnings from HP ld. The above revision was applied when this PR was reported. The problem here is we no longer get any backtrace. Haven't had a chance to determine why.