After switching the compiler version, gcc-config outputs the following message: * If you intend to use the gcc from the new profile in an already * running shell, please remember to do: * # source /etc/profile The source command is a bashism that doesn't exist in all Bourne shell variants. I suggest that the message is changed to ". /etc/profile".
http://sources.gentoo.org/sys-devel/gcc-config/files/gcc-config-1.4.1?r1=1.10&r2=1.11 http://sources.gentoo.org/sys-devel/gcc-config/files/gcc-config-1.5?r1=1.3&r2=1.4