diff -ru slang/src/slutty.c slang-win32/src/slutty.c
--- slang/src/slutty.c	Mon Jan 20 22:58:23 1997
+++ slang-win32/src/slutty.c	Mon Sep 15 16:24:29 1997
@@ -11,6 +11,7 @@
 
 #include <stdio.h>
 #include <signal.h>
+#include <sgtty.h>
 /* sequent support thanks to Kenneth Lorber <keni@oasys.dt.navy.mil> */
 /* SYSV (SYSV ISC R3.2 v3.0) provided by iain.lea@erlm.siemens.de */