http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50461
--- Comment #12 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-10-08 09:50:52 UTC --- (In reply to comment #11) > I seem to be having this problem in GCC 4.5.4 , 4.6.3 and 4.7.2 :( Ys, as already stated in the comments above, this is only fixed on the trunk. > There is already MPFR 3.1.1 version out, why GCC is not using it by default? GCC doesn't use any version of MPFR by default, it uses whichever version you supply. There is no advantage to GCC from using 3.1.x, so if it's a problem then just use an older version.