https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81878
--- Comment #45 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- > native --disable-bootstrap build on x86_64-linux-gnu now fails on trunk: > gnattools uses g++ -B../../ to link, which fails because g++ 8 does not > understand the %@ specs. We really shouldn't be mixing up the preinstalled > compiler with the just-built one IMHO: it should be either g++, or > ../../xg++ -B../../ (probably with additional flags to find libstdc++, if > that's needed) OK, let's just revert everything, the cure is clear worse than the disease.