https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63195
--- Comment #1 from Andreas Schwab <sch...@linux-m68k.org> --- $ ../gcc/configure --prefix=/usr --build=powerpc64-linux --enable-checking=release --enable-shared --with-system-zlib 'CFLAGS=-O2 -g' 'CXXFLAGS=-O2 -g' --with-cpu-64=power4 --enable-secureplt --with-long-double-128 --enable-languages=c