[Bug 42511] New: winnt.h: invalid conversion from 'void*' to ' volatile char*'

https://bugs.winehq.org/show_bug.cgi?id=42511

Bug ID: 42511
           Summary: winnt.h: invalid conversion from 'void*' to 'volatile
                    char*'
           Product: Wine
           Version: 2.2
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 57399
  --> https://bugs.winehq.org/attachment.cgi?id=57399
Build log to failure

GCC throws an error when building 'airwave', a WINE-based bridge for Windows
VST instruments (https://github.com/phantom-code/airwave)

This attempts to include /usr/include/wine/windows/winnt.h, and fails with
'invalid conversion' error (winnt.h:5441:26).

Building on Arch (Manjaro) with GCC 6.3.1 and WINE 2.2 using this PKGBUILD:
https://aur.archlinux.org/cgit/aur.git/tree/PKGBUILD?h=airwave-git