[Bug 43146] New: gtkmm hello world program can't show window

https://bugs.winehq.org/show_bug.cgi?id=43146

Bug ID: 43146
           Summary: gtkmm hello world program can't show window
           Product: Wine
           Version: 2.8
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 58373
  --> https://bugs.winehq.org/attachment.cgi?id=58373
gtkmm hello world tarball

So I tried the gtkmm hello world program:
https://developer.gnome.org/gtkmm-tutorial/stable/sec-helloworld.html.en

and I put it in a tarball (Attached.)

Anyway, I cross-compiled it with mingw and it runs fine in a windows VM.

When I run it with wine though, it crashes -- which is surprising because the
program does so little!

I ran it with GDK_DEBUG=all and I can see that it's crashing on the showing of
a window.

I guess I should mention that I'm running this in an Xorg session, and not
Wayland.

Anyway, I'm running wine 2.8 as provided by Fedora 25.

Here is the backtrace:
https://pastebin.com/yWZkHkDZ

I don't know if it's customary to upload executables here, so I won't do that
unless asked.