http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47000
--- Comment #1 from Jeff Garzik <jgarzik at pobox dot com> 2010-12-18 07:48:23 UTC --- Besides the attached sha256_4way.i, the full source code is at http://yyz.us/bitcoin/cpuminer-0.2.2.tar.gz It's really quite small and easy to build and use. A sample RPC destination, usable for free, is http://mining.bitcoin.cz/