sys-devel/crossdev should enforce latest sys-devel/gnuconfig because if old version is present in system building cross toolchain with crossdev will fail with configure error: checking target system type... Invalid configuration `i586-pc-linux-uclibc': machine `i586-pc-linux' not recognized Also, similar error happens when cross-emerging with toolchain installed from tbz2: checking host system type...Invalid configuration In my case it was ancient gnuconfig 2003something. Manually emerging gnuconfig-20070118 solved the problem.
should be harmless, added to cvs, cheers