diff -uNr aalib-1.4.0/src/aalinuxkbd.c aalib-1.4.0.mod/src/aalinuxkbd.c
--- aalib-1.4.0/src/aalinuxkbd.c	2001-04-26 17:37:31.000000000 +0300
+++ aalib-1.4.0.mod/src/aalinuxkbd.c	2020-06-05 23:12:49.189568303 +0300
@@ -200,7 +200,7 @@
 static int rawmode_init(void)
 {
     if (!closed)
-	return;
+	return 0;
     mypid = getpid();
     if (tty_fd == -1) {
 	tty_fd = fileno(stdin);
