https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87030
Iain Sandoe <iains at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |iains at gcc dot gnu.org --- Comment #1 from Iain Sandoe <iains at gcc dot gnu.org> --- (In reply to Francois-Xavier Coudert from comment #0) > Building with Xcode 10 (beta) on macOS 10.13 or 10.14 (beta), leads to a > build failure because by default, configure sets GCC up for a multilib > build. However, starting with Xcode 10, Apple has removed support for > 32-bit: thus, the builds fails when trying to link libgcc, because it does > not find the 32-bit system libc. > > Passing --disable-multilib fixes bootstrap. However, the default configure > should detect that 32-bit is not supported and automatically build without > 32-bit multilib. Agreed; I was kinda expecting this - do you have a patch? ( or I can add it to the TODO ;) )