http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55909
--- Comment #26 from Mikael Pettersson <mikpe at it dot uu.se> 2013-01-09 12:42:13 UTC --- (In reply to comment #19) > Mikael, could you compare against the versions of packages that I'm using? Well, my environment is Fedora 15 so all system components are older. glibc is 2.13.90-4.1 for instance. The other things that matter for gcc are newer and compiled and installed privately by myself: gmp-5.0.5, mpfr-3.1.1, mpc-1.0.1, binutils-2.22, all compiled by my own gcc-4.6.3. > Hurm,.. your build of gcc-4.7.?, was that unmodified or with the slew of RHT > patches that the fc* packages normally gets added, applied? That was with unmodified FSF sources (a weekly svn snapshot tarball). Note that RH's gcc src rpms are usually (always?) based on RH's own gcc branches (see http://gcc.gnu.org/viewcvs/branches/redhat/) rather than vanilla upstream releases or snapshots, so the amount of modifications are much larger than what the explicit set of patches indicate.