http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55915
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Component|c |bootstrap Version|lto |4.8.0 --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2013-01-09 16:15:57 UTC --- > --with-system-zlib You said zlib.h is included with the system but you don't update CXXFLAGS only CFLAGS.