Tim Docker <twd2 <at> dockerz.net> writes: > I need to use a more recent version of gcc Thanks! Yes, that seems to be it. When building gcc didn't work, it took me a while to figure out that I was running into this bug: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51935 so I am using mpfr-3.0.1 (instead of 3.1.0).