http://www.gentoo.org/doc/en/distcc.xml says:
My question is:Recent Portage updates have made Portage use ${CHOST}-gcc instead of gcc. This means that if you're mixing i686 machines with other types (i386, i586) you will run into problems. A workaround for this may be to export CC='gcc' CXX='c++' or to put it in /etc/make.conf, but that needs testing. If it works for you please email me, Lisa Seelye.
Does this need to be done on the server (the one running the daemon), the client (the old box), or both?

