http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54283
--- Comment #6 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2012-11-17 23:31:22 UTC --- > Does it happen with a recent bootstrap compiler, i.e. for which > -static-libstdc++ is implemented, if you don't set --with-host-libstdcxx? I > think it's 4.6 and above for Solaris. Replying to myself: no, this works (tested with 4.7.x). So it's possible to bootstrap without any special configure options if you have a recent compiler. Which could mean that using --with-stage1-ldflags would work for the others.
