https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71575
--- Comment #1 from Aric Belsito <lluixhi at gmail dot com> --- Forgot this in OP: $ gcc -v Using built-in specs. COLLECT_GCC=/usr/x86_64-gentoo-linux-musl/gcc-bin/6.1.0/gcc COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-gentoo-linux-musl/6.1.0/lto-wrapper Target: x86_64-gentoo-linux-musl Configured with: /var/tmp/portage/sys-devel/gcc-6.1.0/work/gcc-6.1.0/configure --host=x86_64-gentoo-linux-musl --build=x86_64-gentoo-linux-musl --prefix=/usr --bindir=/usr/x86_64-gentoo-linux-musl/gcc-bin/6.1.0 --includedir=/usr/lib/gcc/x86_64-gentoo-linux-musl/6.1.0/include --datadir=/usr/share/gcc-data/x86_64-gentoo-linux-musl/6.1.0 --mandir=/usr/share/gcc-data/x86_64-gentoo-linux-musl/6.1.0/man --infodir=/usr/share/gcc-data/x86_64-gentoo-linux-musl/6.1.0/info --with-gxx-include-dir=/usr/lib/gcc/x86_64-gentoo-linux-musl/6.1.0/include/g++-v6 --with-python-dir=/share/gcc-data/x86_64-gentoo-linux-musl/6.1.0/python --enable-languages=c,c++,fortran --enable-obsolete --enable-secureplt --disable-werror --with-system-zlib --enable-nls --without-included-gettext --disable-symvers libat_cv_have_ifunc=no --enable-checking=release --with-bugurl=https://bugs.gentoo.org/ --with-pkgversion='Gentoo Hardened 6.1.0 p1.1' --enable-esp --enable-libstdcxx-time --disable-libstdcxx-pch --enable-shared --enable-threads=posix --enable-__cxa_atexit --disable-multilib --with-multilib-list=m64 --disable-altivec --disable-fixed-point --enable-targets=all --disable-libgcj --enable-libgomp --disable-libmudflap --disable-libssp --disable-libcilkrts --disable-libmpx --disable-vtable-verify --disable-libvtv --enable-lto --with-isl --disable-isl-version-check --disable-libsanitizer --enable-default-pie --enable-default-ssp Thread model: posix gcc version 6.1.0 (Gentoo Hardened 6.1.0 p1.1)