This patch should fix the instant segfault behavior observed when running in a
Wayland environment. The patch is as used in Debian[1], itself derived from
this[2] finding, according to the same effort made in nixpkgs[3]; This patch
should be retired once the corresponding pull request[4] is merged.

[1] https://sources.debian.org/data/main/p/pasystray/0.8.1-1/debian/patches/0002-Require-X11-backend.patch
[2] https://github.com/christophgysin/pasystray/issues/90#issuecomment-636364122
[3] https://github.com/NixOS/nixpkgs/pull/220365
[4] https://github.com/christophgysin/pasystray/pull/171

From: Scott Leggett <scott@sl.id.au>
Date: Mon, 29 Oct 2018 22:40:16 +1100
Subject: Require X11 backend
Forwarded: not-needed

---
 src/pasystray.c | 1 +
 1 file changed, 1 insertion(+)

--- a/src/pasystray.c
+++ b/src/pasystray.c
@@ -38,6 +38,7 @@ static menu_infos_t* mis;
 
 int main(int argc, char *argv[])
 {
+		gdk_set_allowed_backends ("x11");
     GOptionEntry* options = get_options();
     GError *error = NULL;
     gtk_init_with_args(&argc, &argv, NULL, options, NULL, &error);