Hi,

As pointed out to me by Joel Carnat, arandr is missing a runtime dependency on
GTK+3:

```
$ arandr
Traceback (most recent call last):
  File "/usr/local/bin/arandr", line 41, in <module>
    from screenlayout.gui import main
  File "/usr/local/lib/python3.12/site-packages/screenlayout/gui.py", line 28, in <module>
    gi.require_version('Gtk', '3.0')
  File "/usr/local/lib/python3.12/site-packages/gi/__init__.py", line 129, in require_version
    raise ValueError('Namespace %s not available' % namespace)
ValueError: Namespace Gtk not available
```

Fix below. OK?


Index: Makefile
===================================================================
RCS file: /cvs/ports/x11/arandr/Makefile,v
diff -u -p -r1.21 Makefile
--- Makefile	29 Apr 2025 10:40:38 -0000	1.21
+++ Makefile	6 Sep 2025 12:56:07 -0000
@@ -3,7 +3,7 @@ MODPY_DISTV =	0.1.11
 DISTNAME =		arandr-${MODPY_DISTV}
 CATEGORIES =		x11 sysutils
 HOMEPAGE =		https://christian.amsuess.com/tools/arandr/
-REVISION =		3
+REVISION =		4
 
 MAINTAINER =		Edd Barrett <edd@openbsd.org>
 
@@ -16,7 +16,8 @@ MODULES =		lang/python
 MODPY_PYBUILD =		setuptools
 
 RUN_DEPENDS =		devel/desktop-file-utils \
-			devel/py-gobject3
+			devel/py-gobject3 \
+			x11/gtk+3
 BUILD_DEPENDS =		devel/gettext,-tools \
 			textproc/py-docutils
 
-- 
Best Regards
Edd Barrett

https://www.theunixzoo.co.uk