[arch-general] Any way to revert chroot to gcc46?

Guys, Is there any way to revert my chroot for building back to gcc46 immediately prior to this last gcc47 update? Obvious reasons - bug fixes required due to new gcc47 C11 & C11++ extension implementation, etc..., but I would like to continue building until the bugs are fixed. Is there a reasonable way to do that absent having to set up and point the chroot pacman.conf at a hand-built repo with just the gcc46 files in it? -- David C. Rankin, J.D.,P.E.