http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54686
--- Comment #7 from Paolo Carlini <paolo.carlini at oracle dot com> 2012-09-23 21:15:30 UTC --- Thanks for the message, Marc, I think we are both missing something here, because abs (long long) apparently (I didn't write the code) has already a fall back open coded implementation in namespace __gnu_cxx, so? Can you please investigate and see if in case we can have a simple patch benefiting a range of targets? I bet we can.