Arch Linux

Description:
Version 0.2.5-6 segfaults when run on Wayland (with `GDK_BACKEND=wayland`), it runs okay with `GDK_BACKEND=x11`.

Additional info:
gpicview version 0.2.5-6
gtk3 version 1:3.24.29-1

Previously, I was using the GTK2 version of the package before, so this wasn't a problem for me.
I also built and installed the upstream tarballs for 0.2.5 with --enable-gtk3 option for ./configure and it runs on Wayland with no problems.
After applying the aforementioned patch and rebuilding, the gpicview crashes with segfault.

Stack trace from gdb (my build with the patch applied):
(gdb) where
#0 0x00007ff3aa8aa370 in XRootWindowOfScreen () at /usr/lib/libX11.so.6
#1 0x00005564435cf9d6 in gf_display_get_workarea (g_screen=0x556444102010, rect=0x7ffdcdc14240) at working-area.c:61
#2 0x00005564435cfcdc in get_working_area (screen=0x556444102010, rect=0x7ffdcdc14240) at working-area.c:141
#3 0x00005564435cbf7d in main_win_open (mw=0x5564443c22a0, file_path=0x556444160d70 "./gpicview.png", zoom=ZOOM_NONE) at main-win.c:439
#4 0x00005564435cbd57 in main_win_open (mw=0x5564443c22a0, file_path=0x5564435d7102 ".", zoom=ZOOM_NONE) at main-win.c:380
#5 0x00005564435ca779 in main (argc=1, argv=0x7ffdcdc14448) at gpicview.c:104


coredump info (binary from the package):
Timestamp: Wed 2021-05-12 12:16:50 CEST (5min ago)
Command Line: gpicview
Executable: /usr/bin/gpicview
Control Group: /user.slice/user-1000.slice/session-1.scope
Unit: session-1.scope
Slice: user-1000.slice
Session: 1
Owner UID: 1000 (sbalazik)
Boot ID: d40ca6b801ef4ed7970c806f68eeb54e
Machine ID: fb82c1cf3c6e4b8d8338b85b371740b9
Hostname: sbalazik-dell
Storage: /var/lib/systemd/coredump/core.gpicview.1000.d40ca6b801ef4ed7970c806f68eeb54e.16568.1620814610000000.zst (present)
Disk Size: 1.4M
Message: Process 16568 (gpicview) of user 1000 dumped core.

Stack trace of thread 16568:
#0 0x00007f8098112370 XRootWindowOfScreen (libX11.so.6 + 0x2f370)
#1 0x000056383a9fe237 n/a (gpicview + 0xd237)
#2 0x000056383a9fc801 n/a (gpicview + 0xb801)
#3 0x000056383a9f923e n/a (gpicview + 0x823e)
#4 0x00007f80971cfb25 __libc_start_main (libc.so.6 + 0x27b25)
#5 0x000056383a9f928e n/a (gpicview + 0x828e)

Stack trace of thread 16571:
#0 0x00007f80972a1a9d syscall (libc.so.6 + 0xf9a9d)
#1 0x00007f80975e606b g_cond_wait_until (libglib-2.0.so.0 + 0xa206b)
#2 0x00007f80975678b3 n/a (libglib-2.0.so.0 + 0x238b3)
#3 0x00007f80975c8ddb n/a (libglib-2.0.so.0 + 0x84ddb)
#4 0x00007f80975c60c1 n/a (libglib-2.0.so.0 + 0x820c1)
#5 0x00007f8096b32299 start_thread (libpthread.so.0 + 0x9299)
#6 0x00007f80972a7053 __clone (libc.so.6 + 0xff053)

Stack trace of thread 16572:
#0 0x00007f809729c37f __poll (libc.so.6 + 0xf437f)
#1 0x00007f80975ebae8 n/a (libglib-2.0.so.0 + 0xa7ae8)
#2 0x00007f8097597593 g_main_loop_run (libglib-2.0.so.0 + 0x53593)
#3 0x00007f80970b5558 n/a (libgio-2.0.so.0 + 0x102558)
#4 0x00007f80975c60c1 n/a (libglib-2.0.so.0 + 0x820c1)
#5 0x00007f8096b32299 start_thread (libpthread.so.0 + 0x9299)
#6 0x00007f80972a7053 __clone (libc.so.6 + 0xff053)

Stack trace of thread 16570:
#0 0x00007f809729c37f __poll (libc.so.6 + 0xf437f)
#1 0x00007f80975ebae8 n/a (libglib-2.0.so.0 + 0xa7ae8)
#2 0x00007f8097595781 g_main_context_iteration (libglib-2.0.so.0 + 0x51781)
#3 0x00007f80975957d2 n/a (libglib-2.0.so.0 + 0x517d2)
#4 0x00007f80975c60c1 n/a (libglib-2.0.so.0 + 0x820c1)
#5 0x00007f8096b32299 start_thread (libpthread.so.0 + 0x9299)
#6 0x00007f80972a7053 __clone (libc.so.6 + 0xff053)

Stack trace of thread 16573:
#0 0x00007f809729c37f __poll (libc.so.6 + 0xf437f)
#1 0x00007f80975ebae8 n/a (libglib-2.0.so.0 + 0xa7ae8)
#2 0x00007f8097595781 g_main_context_iteration (libglib-2.0.so.0 + 0x51781)
#3 0x00007f8098232ebe n/a (libdconfsettings.so + 0x5ebe)
#4 0x00007f80975c60c1 n/a (libglib-2.0.so.0 + 0x820c1)
#5 0x00007f8096b32299 start_thread (libpthread.so.0 + 0x9299)
#6 0x00007f80972a7053 __clone (libc.so.6 + 0xff053)

Stack trace of thread 16575:
#0 0x00007f80972a1a9d syscall (libc.so.6 + 0xf9a9d)
#1 0x00007f80975e606b g_cond_wait_until (libglib-2.0.so.0 + 0xa206b)
#2 0x00007f80975678b3 n/a (libglib-2.0.so.0 + 0x238b3)
#3 0x00007f80975c8ddb n/a (libglib-2.0.so.0 + 0x84ddb)
#4 0x00007f80975c60c1 n/a (libglib-2.0.so.0 + 0x820c1)
#5 0x00007f8096b32299 start_thread (libpthread.so.0 + 0x9299)
#6 0x00007f80972a7053 __clone (libc.so.6 + 0xff053)


Steps to reproduce:
1. install gpicview
2. install a wayland compositor (sway in my case)
3. run gpicview (`Segmentation fault (core dumped)`)