fix: enable to run natively in wayland

Incorporated from this v2 change: wailsapp#1811
stendler · Jul 22, 2024 · 2232ed1 · 2232ed1
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diff --git a/mkdocs-website/docs/en/changelog.md b/mkdocs-website/docs/en/changelog.md
@@ -74,6 +74,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fix doctor detection of npm that is not installed with system package manager by [@pekim](https://github.com/pekim) in [#3458](https://github.com/wailsapp/wails/pull/3458)
 - Fix missing MicrosoftEdgeWebview2Setup.exe. Thanks to [@robin-samuel](https://github.com/robin-samuel).
 - Fix random crash on linux due to window ID handling by @leaanthony. Based on PR [#3466](https://github.com/wailsapp/wails/pull/3622) by [@5aaee9](https://github.com/5aaee9).
+- [linux] Fix to run natively in wayland incorporated from [#1811](https://github.com/wailsapp/wails/pull/1811) in [#3614](https://github.com/wailsapp/wails/pull/3614) by [@stendler](https://github.com/stendler)
 
 ### Changed
 

diff --git a/v3/pkg/application/application_linux.go b/v3/pkg/application/application_linux.go
@@ -27,7 +27,9 @@ import (
 func init() {
 	// FIXME: This should be handled appropriately in the individual files most likely.
 	// Set GDK_BACKEND=x11 if currently unset and XDG_SESSION_TYPE is unset, unspecified or x11 to prevent warnings
-	_ = os.Setenv("GDK_BACKEND", "x11")
+	if os.Getenv("GDK_BACKEND") == "" && (os.Getenv("XDG_SESSION_TYPE") == "" || os.Getenv("XDG_SESSION_TYPE") == "unspecified" || os.Getenv("XDG_SESSION_TYPE") == "x11") {
+		_ = os.Setenv("GDK_BACKEND", "x11")
+	}
 }
 
 type linuxApp struct {