https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98402
--- Comment #1 from Ian Lance Taylor <ian at airs dot com> --- Odd. What version of mpfr do you have installed?
ian at airs dot com via Gcc-bugs Sun, 20 Dec 2020 11:42:10 -0800
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98402
--- Comment #1 from Ian Lance Taylor <ian at airs dot com> --- Odd. What version of mpfr do you have installed?