https://bugs.winehq.org/show_bug.cgi?id=18832
--- Comment #11 from Austin English austinenglish@gmail.com --- (In reply to André H. from comment #10)
(In reply to Austin English from comment #9)
Using -fprofile-generate for CFLAGS/LDFLAGS works now for all of wine, except the loader, with gcc-4.7.2.
Yes, i'd say this is totally fixed for a while now. see also wiki.winehq.org/CodeCoverage
Still fails for me in loader/, I filed bug 37447 for that.