From 4a45ca4391f8a050737fe991104372533700a7c3 Mon Sep 17 00:00:00 2001
From: Jared Wahlstrand <jwahlstrand@gmail.com>
Date: Fri, 29 Jul 2022 02:04:44 -0400
Subject: [PATCH] fail in __init__() with error if Gtk4 was previously imported
 (#651)

* fail in __init__() with error if Gtk4 was previously imported (prevents a crash)

Also remove redundant tests that I introduced

* run CI again
---
 src/Gtk.jl       | 2 ++
 test/runtests.jl | 2 --
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Gtk.jl b/src/Gtk.jl
index 3d8b4ded..16b7d042 100644
--- a/src/Gtk.jl
+++ b/src/Gtk.jl
@@ -77,6 +77,8 @@ include("gio.jl")
 include("application.jl")
 
 function __init__()
+    in(:Gtk4, names(Main, imported=true)) && error("Gtk is incompatible with Gtk4.")
+
     # Set XDG_DATA_DIRS so that Gtk can find its icons and schemas
     ENV["XDG_DATA_DIRS"] = join(filter(x -> x !== nothing, [
         dirname(adwaita_icons_dir),
diff --git a/test/runtests.jl b/test/runtests.jl
index 3b9917a3..bb838d94 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -7,6 +7,4 @@ include("gui.jl")
 include("list.jl")
 include("misc.jl")
 include("text.jl")
-include("tree.jl")
-
 end