https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85857
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- So it looks like mpfr uses internal interfaces for DFP? --with-gmp-build was stronly discouraged back in time... Also in-tree mpfr and system gmp is a combination that currently works (but not with DFP then). Please work with mpfr/gmp folks on how to address this (update to newer tarballs?)
