https://bugs.winehq.org/show_bug.cgi?id=50996
--- Comment #3 from Robbert van der Helm mail@robbertvanderhelm.nl --- As mentioned on IRC, 4f787812999b3b26f04b322fa0d78724596878c0 is very likely the culprit here. As a consequence of prioritizing Wine's own include path, this also seems to throw out all of the other include paths.
https://source.winehq.org/git/wine.git/commit/4f787812999b3b26f04b322fa0d787...