https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63262
--- Comment #5 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> --- (In reply to karsten from comment #4) > After using the last built from latest development “snapshot” source for > 4.9.2 from Oct 29th, according the maintainer of http://hpc.sourceforge.net/ > the error appears still! Can you tell us: - what GCC source file was used exactly (link to tarball, or revision number) - whether any modification (patch) was applied to the GCC source - what build procedure they used (GMP, MPFR, MPC versions; what "configure" command-line; etc.) - what OS X version the compiler was configured on (not your machine, the one the hpc.sourceforge.net people used) Only my machine, with the closest build I have right now (somewhat older 4.9 branch), I don't see the bug. If I get the information above, I can try to reproduce it, and figure it out. Also, it might be good for the hpc.sourceforge.net team to come here and give their input directly.