[arch-dev-public] [signoff] gcc 4.3.0 and related toolchain updates

Gcc 4.3.0 has been in testing for a while together with its related toolchain updates (glibc, kernel-headers, binutils). At this moment we've built OpenOffice.org for both architectures and GNOME 2.22 for x86_64 with this compiler without noticable problems. Produced binaries are roughly 5-10% faster than with the old compiler. Tobias and I would like to have this one in core for the new release, as the new kernel and all modules have been built with it also.