http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53213
lbl2007 at gmx dot net changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |WORKSFORME --- Comment #3 from lbl2007 at gmx dot net 2012-05-04 08:59:28 UTC --- The error occurs in mpfr_set_str() when using an unpatched version of MPFR 3.1. Applying the latest cumulative patch (http://www.mpfr.org/mpfr-current/allpatches) appears to solve the problem.