[Bug c/67680] Seg Fault in gcc 4.9.3 compiling libiberty/floatformat.c when building gcc 5.2.1 on Cygwin 64 on Windows

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67680

--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Where did you get gmp/mpfr from?  The crash looks like either one of those two
are crashing?  If you compiled them yourself, did you run make check and was
there any failures?