http://bugs.winehq.org/show_bug.cgi?id=58234
--- Comment #1 from Bernhard Übelacker bernhardu@mailbox.org --- Currently I was using a line like this: ./configure \ x86_64_CC='ccache x86_64-w64-mingw32-gcc' \ i386_CC='ccache i686-w64-mingw32-gcc' \ ...
I tested now to use this: ./configure \ x86_64_CC='ccache clang' \ i386_CC='ccache clang' \ ...
And indeed I cannot see this issue in this build, so I assume I was suppoed to use clang?
(A few months ago I think to remember there was some other issue blocking with this way, therefore I used the wrappers, but today it works like a charm.)