https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66740
--- Comment #2 from tprince at computer dot org --- $ gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/local/gcc6.0/libexec/gcc/x86_64-unknown-cygwin/6.0.0/lt o-wrapper.exe Target: x86_64-unknown-cygwin Configured with: ../configure --prefix=/usr/local/gcc6.0 --enable-languages='c c ++ fortran' --enable-libgomp --enable-threads=posix --with-dwarf2 --without-libi conv-prefix --without-libintl-prefix --with-system-zlib --disable-werror --witho ut-cloog --without-isl Thread model: posix gcc version 6.0.0 20150630 (experimental) (GCC)