https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90330
--- Comment #30 from Matt Thompson <matthew.thompson at nasa dot gov> --- (In reply to Matt Thompson from comment #28) > (In reply to Iain Sandoe from comment #27) > > That's fine - essentially, you're building them from source and therefore > > don't need to worry about --with-gmp= configure options etc. > > > > For the record, I'm using GMP-6.1.2, MPFR-3.1.6, MPC-1.1.0 and ISL-0.20. > > Well, it looks like download_prerequisites might be behind the times: > > gmp='gmp-6.1.0.tar.bz2' > mpfr='mpfr-3.1.4.tar.bz2' > mpc='mpc-1.0.3.tar.gz' > isl='isl-0.18.tar.bz2' > > I'm going to try and download the newest versions of all these and build > with them. Maybe that'll help (though I don't see much/any C++ in them...). Yeah. Didn't help. Still, it was a fun exercise. If GCC was on github, I'd make a pull request to update the download_prerequisites script, though. Unless there's a good reason to use these version?