From fb952dd2092c4ea42a4b0e0ada896d7e2ce7b03d Mon Sep 17 00:00:00 2001
From: deepend-tildeclub <58404188+deepend-tildeclub@users.noreply.github.com>
Date: Wed, 4 Feb 2026 15:34:24 -0700
Subject: [PATCH] Add GTK version check in fe-gtk.h
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Added a fallback in the GTK frontend header to derive HAVE_GTK3 from GTK_MAJOR_VERSION when the macro is missing, so Windows GTK3 builds don’t compile GTK2-only code paths by mistake.
---
 src/fe-gtk/fe-gtk.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/fe-gtk/fe-gtk.h b/src/fe-gtk/fe-gtk.h
index fefb442d..81278662 100644
--- a/src/fe-gtk/fe-gtk.h
+++ b/src/fe-gtk/fe-gtk.h
@@ -32,6 +32,14 @@
 #include <gtk/gtk.h>
 #include <cairo.h>
 
+#ifndef HAVE_GTK3
+#if GTK_MAJOR_VERSION >= 3
+#define HAVE_GTK3 1
+#else
+#define HAVE_GTK3 0
+#endif
+#endif
+
 #ifdef HAVE_GTK_MAC
 #include <gtkosxapplication.h>
 #endif