commit 1fa16111e51074699e2ad07e39ab98be91bcdcd6
from: Omar Polo <op@omarpolo.com>
date: Thu Aug 12 09:10:32 2021 UTC

don't start if the keymap is empty

commit - 32ac17a4ea1ad4c2f9e8c8d78dd5738958883291
commit + 1fa16111e51074699e2ad07e39ab98be91bcdcd6
blob - 0b5bd9a84eec6b43c96809bd50b478ffefcddee6
blob + 5b7da6d1130b55dc57f37640fa9daa167fbbef5a
--- ui.c
+++ ui.c
@@ -1057,6 +1057,11 @@ ui_init()
 {
 	setlocale(LC_ALL, "");
 
+	if (TAILQ_EMPTY(&global_map.m)) {
+		fprintf(stderr, "no keys defined!\n");
+		return 0;
+	}
+
 	minibuffer_init();
 
 	/* initialize help window */