https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63684
--- Comment #9 from Phil Muldoon <pmuldoon at redhat dot com> --- My build is not complete with the parameters specified in the PR: ../trunk/configure --prefix=/home/pmuldoon/gdb_compile_gcc/ --with-arch=native --with-tune=native --enable-languages=c --enable-lto --enable-gold --disable-libstdcxx --with-tune=native --enable-languages=c --enable-lto --enable-gold --disable-libstdcx && make -j9 And it built successfully. Which is puzzling! I notice your configure was ./configure. Was it it an in-source build (IE not building to a separate object file directory?)