I just built my personal b[e]lfs with gcc-3.5-20040502 to see whether
(known) gcc-3.4.0 bugs were already solved. (linux-2.6.6,
glibc-cvs nptl, biutils-cvs). Most things work, but some patches were
needed (a few more will follow when they work). Most but not all of
them
are gcc35 related. Would be nice if someone could test/check and maybe
report them upstream. Patches were posted to patches list too: