From ebb9aa48aebf93700264224129bde5392f00bbe4 Mon Sep 17 00:00:00 2001
From: deepend <deepend@tilde.club>
Date: Mon, 16 Feb 2026 19:33:50 -0700
Subject: [PATCH] Added GTK2 compatibility macros in fe-gtk.h so calls to
 gtk_widget_set_hexpand() / gtk_widget_set_vexpand() become no-ops when
 !HAVE_GTK3, fixing the GTK2 implicit-declaration build failures introduced by
 GTK3-oriented layout code. Kept the macros warning-safe using (void) casts
 and G_STMT_START/G_STMT_END, so they compile cleanly in strict warning
 configurations.

---
 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 81278662..03e55508 100644
--- a/src/fe-gtk/fe-gtk.h
+++ b/src/fe-gtk/fe-gtk.h
@@ -40,6 +40,14 @@
 #endif
 #endif
 
+#if !HAVE_GTK3
+/* GtkWidget expansion APIs were introduced in GTK3. Keep GTK2 builds
+ * source-compatible by accepting the calls as no-ops.
+ */
+#define gtk_widget_set_hexpand(widget, expand) G_STMT_START { (void) (widget); (void) (expand); } G_STMT_END
+#define gtk_widget_set_vexpand(widget, expand) G_STMT_START { (void) (widget); (void) (expand); } G_STMT_END
+#endif
+
 #ifdef HAVE_GTK_MAC
 #include <gtkosxapplication.h>
 #endif