https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100373
--- Comment #1 from Iain Sandoe <iains at gcc dot gnu.org> --- this happens with mpfr-4.x sources and not with mpfr-3.1.6.
iains at gcc dot gnu.org via Gcc-bugs Sun, 02 May 2021 08:09:12 -0700
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100373
--- Comment #1 from Iain Sandoe <iains at gcc dot gnu.org> --- this happens with mpfr-4.x sources and not with mpfr-3.1.6.