Add `-mstack-protector-guard=global` to CFLAGS instead of `--disable-gcc-hardening` configure option on Windows?

workaround https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86832#c8

Tor compiles fine on Windows mingw gcc 8.2 without --disable-gcc-hardening if add -mstack-protector-guard=global to CFLAGS

Trac:
Username: grj