#0  0x000000000040bd8c in Fl_Widget::parent() const (this=0x0) at ../FL/Fl_Widget.H:241
#1  0x0000000000423398 in Fl_Widget::top_window() const (this=0x0) at Fl_Window.cxx:121
#2  0x0000000000442ccb in Fl_Wayland_Window_Driver::makeWindow() (this=0x628e20) at drivers/Wayland/Fl_Wayland_Window_Driver.cxx:960
#3  0x0000000000441303 in Fl_Wayland_Window_Driver::show() (this=0x628e20) at drivers/Wayland/Fl_Wayland_Window_Driver.cxx:440
#4  0x0000000000423e97 in Fl_Window::show() (this=0x5e0050) at Fl_Window.cxx:542
#5  0x000000000044133e in Fl_Wayland_Window_Driver::show_menu() (this=0x628e20) at drivers/Wayland/Fl_Wayland_Window_Driver.cxx:451
#6  0x0000000000463ae6 in Fl_Menu_Window::show() (this=0x5e0050) at Fl_Menu_Window.cxx:28
#7  0x0000000000462d2b in Fl_Menu_Item::pulldown(int, int, int, int, Fl_Menu_Item const*, Fl_Menu_ const*, Fl_Menu_Item const*, int) const (this=0x499880 <menutable>, X=0, Y=0, W=600, H=30, initial_item=0x0, pbutton=
    0x7fffffffd8c0, title=0x0, menubar=1) at Fl_Menu.cxx:927
#8  0x00000000004183dc in Fl_Menu_Bar::handle(int) (this=0x7fffffffd8c0, event=1) at Fl_Menu_Bar.cxx:52
#9  0x00000000004115a4 in send(Fl_Widget*, int) (o=0x7fffffffd8c0, event=1) at Fl_Group.cxx:95
#10 0x0000000000411ced in Fl_Group::handle(int) (this=0x7fffffffd960, event=1) at Fl_Group.cxx:225
#11 0x0000000000424080 in Fl_Window::handle(int) (this=0x7fffffffd960, ev=1) at Fl_Window.cxx:590
#12 0x0000000000409b06 in send_event(int, Fl_Widget*, Fl_Window*) (event=1, to=0x7fffffffd960, window=0x7fffffffd960) at Fl.cxx:1044
#13 0x0000000000409d02 in Fl::handle_(int, Fl_Window*) (e=1, window=0x7fffffffd960) at Fl.cxx:1173
#14 0x0000000000409b9d in Fl::handle(int, Fl_Window*) (e=1, window=0x7fffffffd960) at Fl.cxx:1124
#15 0x000000000043c5ca in pointer_button(void*, wl_pointer*, uint32_t, uint32_t, uint32_t, uint32_t) (data=0x4c64f0, wl_pointer=0x4c7dc0, serial=3905, time=2405637708, button=272, state=1)
    at drivers/Wayland/Fl_Wayland_Screen_Driver.cxx:402
#16 0x00007ffff74cfff5 in  () at /usr/lib/x86_64-linux-gnu/libffi.so.7
#17 0x00007ffff74cf40a in  () at /usr/lib/x86_64-linux-gnu/libffi.so.7
#18 0x00007ffff7dad3a8 in  () at /usr/lib/x86_64-linux-gnu/libwayland-client.so.0
#19 0x00007ffff7da9c48 in  () at /usr/lib/x86_64-linux-gnu/libwayland-client.so.0
#20 0x00007ffff7dab21c in wl_display_dispatch_queue_pending () at /usr/lib/x86_64-linux-gnu/libwayland-client.so.0
#21 0x000000000043debd in fd_callback(int, wl_display*) (unused=3, display=0x4c0dd0) at drivers/Wayland/Fl_Wayland_Screen_Driver.cxx:990
#22 0x000000000044973a in Fl_Wayland_Screen_Driver::poll_or_select_with_delay(double) (this=0x4c0b80, time_to_wait=1.9162669999999997) at drivers/Wayland/Fl_wayland.cxx:226
#23 0x000000000043e730 in Fl_Wayland_Screen_Driver::wait(double) (this=0x4c0b80, time_to_wait=1.9162669999999997) at drivers/Wayland/Fl_Wayland_Screen_Driver.cxx:1201
#24 0x0000000000408c8c in Fl::wait(double) (time_to_wait=1e+20) at Fl.cxx:449
#25 0x0000000000408cb3 in Fl::run() () at Fl.cxx:469
#26 0x0000000000408472 in main(int, char**) (argc=1, argv=0x7fffffffdb88) at menu_test.cxx:88