https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66563
--- Comment #44 from Kazumoto Kojima <kkojima at gcc dot gnu.org> --- (In reply to John Paul Adrian Glaubitz from comment #43) > Btw, could building the fixed gcc-4.9 with a compiler affected by this > particular bug still propagate the problem? Or, asking the other way around: > Should the latest package version rather be built with an older, unaffected > gcc version? Not likely. The sane gmp/mpfr/mpc libraries are needed, though.
