-O2 -pipe -march=x86-64 -mtune=generic -Werror=odr -Werror=lto-type-mismatch -Werror=strict-aliasing -Wl,-O1 -Wl,--as-needed -Wl,-z,pack-relative-relocs -Werror=odr -Werror=lto-type-mismatch -Werror=strict-aliasing
