https://bugs.winehq.org/show_bug.cgi?id=31836
--- Comment #39 from Rafał Mużyło galtgendo@o2.pl --- ...ah, OK, now I see how that exactly works...
Kind of fragile.
Still, what I've wrote earlier about the conditions of the check holds - the mismatch should AC_MSG_ERROR, as it indicates an incorrect toolchain setup.