http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46142
--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> 2010-10-23 00:46:01 UTC --- On Fedora 13/x86-64, you can use CC="gcc -m32" CXX="g++ -m32" ../src-trunk/configure i686-linux to bootstrap 32bit gcc. You need to install 32bit libraries used by gcc.
