http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57653
--- Comment #5 from Allan McRae <allan at archlinux dot org> --- I still get this with r200224 # gcc-4.9 -v Using built-in specs. COLLECT_GCC=gcc-4.9 COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-unknown-linux-gnu/4.9.0/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: /build/gcc-git/src/gcc/configure --prefix=/usr --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share/gcc-4.9 --with-bugurl='http://aur.archlinux.org/packages.php?ID=16045' --enable-languages=c,c++,lto --enable-shared --enable-threads=posix --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-clocale=gnu --disable-libstdcxx-pch --enable-gnu-unique-object --enable-linker-build-id --enable-cloog-backend=isl --disable-cloog-version-check --enable-lto --enable-gold --enable-ld=default --enable-plugin --with-plugin-ld=ld.gold --with-linker-hash-style=gnu --disable-install-libiberty --disable-multilib --disable-libssp --disable-werror --enable-checking=release --program-suffix=-4.9 --enable-version-specific-runtime-libs Thread model: posix gcc version 4.9.0 20130619 (experimental) (GCC) Built with CFLAGS="-march=x86-64 -mtune=generic -O2 -fstack-protector --param=ssp-buffer-size=4" LDFLAGS="-Wl,-O1,--sort-common,--as-needed,-z,relro"