On Mon, 18 Feb 2019 at 00:07, Dennis Clarke wrote: > > On 2/17/19 5:48 PM, Segher Boessenkool wrote: > > > > Have you seen https://gcc.gnu.org/wiki/FAQ#configure_suffix by the way? > > Hrmmmm ... nope .... going there now. Seems to suggest I need to look > in other places. I do have MPFR, GMP and MPC already built and installed > into the target sysroot within /usr/local/lib. Okay .. these are good > hints. I will keep digging. But are they in LD_LIBRARY_PATH? If not, you'll get the "cannot compute suffix" error. You should just stop building them separately, and do it the simple way: https://gcc.gnu.org/wiki/InstallingGCC