https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66038
--- Comment #1 from Douglas Mencken <dougmencken at gmail dot com> --- $ prev-gcc/xgcc -v Using built-in specs. COLLECT_GCC=prev-gcc/xgcc Target: powerpc-unknown-darwin Configured with: ../gcc-5.1.0/configure --build=powerpc-unknown-darwin --host=powerpc-unknown-darwin --target=powerpc-unknown-darwin --prefix=/usr --sysconfdir=/etc --mandir=/usr/share/man --with-slibdir=/usr/lib --program-prefix= --enable-languages=c,c++,objc,obj-c++ --disable-checking --enable-shared --enable-static --enable-threads=posix --with-__thread --with-system-zlib --disable-nls --disable-werror Thread model: posix gcc version 5.1.0 (GCC) $ gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/libexec/gcc/powerpc-unknown-darwin/4.9.2/lto-wrapper Target: powerpc-unknown-darwin Configured with: ../gcc-4.9.2/configure --build=powerpc-unknown-darwin --host=powerpc-unknown-darwin --target=powerpc-unknown-darwin --prefix=/usr --sysconfdir=/etc --mandir=/usr/share/man --with-slibdir=/usr/lib --program-prefix= --enable-languages=c,c++,objc,obj-c++ --disable-checking --enable-shared --enable-static --enable-threads=posix --with-__thread --with-system-zlib --disable-nls --disable-werror Thread model: posix gcc version 4.9.2 (GCC)