https://bugs.gentoo.org/876953
https://github.com/rkd77/elinks/issues/189
https://github.com/rkd77/elinks/commit/d229ebe89cb2a5e08e9d0af98faaa59ba2089fb3

From d229ebe89cb2a5e08e9d0af98faaa59ba2089fb3 Mon Sep 17 00:00:00 2001
From: Witold Filipczyk <witekfl@poczta.onet.pl>
Date: Fri, 9 Sep 2022 11:30:21 +0200
Subject: [PATCH] [options] Do not compile-in mouse related functions when
 mouse support is disabled. Refs #189

--- a/src/config/options.c
+++ b/src/config/options.c
@@ -896,6 +896,7 @@ change_hook_ui_double_esc(struct session *ses, struct option *current, struct op
 	return 0;
 }
 
+#ifdef CONFIG_MOUSE
 static int
 change_hook_ui_mouse_disable(struct session *ses, struct option *current, struct option *changed)
 {
@@ -911,7 +912,7 @@ change_hook_ui_mouse_disable(struct session *ses, struct option *current, struct
 	}
 	return 0;
 }
-
+#endif
 
 /** Make option templates visible or invisible in the option manager.
  * This is called once on startup, and then each time the value of the
@@ -988,7 +989,9 @@ static const struct change_hook_info change_hooks[] = {
 	{ "ui.colors",			change_hook_ui_colors },
 	{ "ui.double_esc",		change_hook_ui_double_esc },
 	{ "ui.language",		change_hook_language },
+#ifdef CONFIG_MOUSE
 	{ "ui.mouse_disable",	change_hook_ui_mouse_disable },
+#endif
 	{ "ui",				change_hook_ui },
 	{ NULL,				NULL },
 };