gentoo ~ # emerge --info | grep gcc
Portage 2.1.8.3 (default/linux/x86/10.0, gcc-4.4.4, glibc-2.11.2-r0, 2.6.34-gentoo-r6 i686)
sys-devel/gcc:       4.4.4-r2
sys-devel/gcc-config: 1.4.1
gentoo ~ # gcc-config -l
 [1] i686-pc-linux-gnu-4.4.4 *