I use the =sys-devel/gcc-4.6.1 (and later =sys-devel/gcc-4.6.1-r1) compiler version which is still hard-masked for testing. Almost the whole system compiles fine when using =sys-devel/gcc-4.6.1-r1. The only ebuild that fails to compile is ruby, which is not used/installed any more on my machine since I don't need any ebuild that has ruby as a dependency. Aren't there already patches upstream that fixes the GCC-4.6.1 problem in ruby? So why is =sys-devel/gcc-4.6* still hard-masked? Are there many other ebuilds that fail to compile when using the GCC 4.6 series?
Once again, please do not CC arches on your own.
questions should go to mailing lists, not bugzilla