From e1e9a2f3641ee8a75adab1291934e82fbdcdebc2 Mon Sep 17 00:00:00 2001
From: nhmall <nhmall@nethack.org>
Date: Sun, 24 Sep 2023 11:34:58 -0400
Subject: [PATCH] avoid crash upon exit under Windows with curses

---
 sys/windows/windsys.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/windows/windsys.c b/sys/windows/windsys.c
index e366e4a73..8a970aa93 100644
--- a/sys/windows/windsys.c
+++ b/sys/windows/windsys.c
@@ -495,7 +495,8 @@ nethack_exit(int code)
 #endif
     if (getreturn_enabled) {
         raw_print("\n");
-        wait_synch();
+        if (iflags.window_inited)
+            wait_synch();
     }
     exit(code);
 }