https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32415
--- Comment #17 from Harald van Dijk <harald at gigawatt dot nl> --- (In reply to Xi Ruoyao from comment #16) > But if we do that there would be no PREFIX/lib(64)/libgcc_s.so.1. Indeed, and there shouldn't be. Not providing libgcc* in that location is exactly how --enable-version-specific-runtime-libs used to work. > Then we > have to add PREFIX/lib/gcc/{arch}/{version}/{multilibdir} to ld.so.conf. As mentioned on <https://gcc.gnu.org/onlinedocs/libstdc++/manual/configure.html>, this option can be used to install multiple versions of GCC side by side. If one version of GCC is built without --enable-version-specific-runtime-libs, that version of GCC provides the version of the libraries to be used at run-time. Alternatively, indeed, ld.so.conf. Or manually create symlinks.