[Bug 41140] New: gcc6: comctl32 build warnings

https://bugs.winehq.org/show_bug.cgi?id=41140

Bug ID: 41140
           Summary: gcc6: comctl32 build warnings
           Product: Wine
           Version: 1.9.16
          Hardware: x86
                OS: Linux
            Status: NEW
          Severity: trivial
          Priority: P2
         Component: comctl32
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 55346
  --> https://bugs.winehq.org/attachment.cgi?id=55346
comctl32/listview.c log

With Debian's gcc update, new warnings appeared.