From 8b79ad59f14c4ced6ae2af6277d94b3265bd211d Mon Sep 17 00:00:00 2001
From: cinap_lenrek <cinap_lenrek@felloff.net>
Date: Sun, 3 Nov 2019 15:20:57 +0100
Subject: [PATCH] games/turtle: do exit instead of crash in redraw() when there
 where no lines drawn

---
 sys/src/games/turtle.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/src/games/turtle.c b/sys/src/games/turtle.c
index 55d6c54c5..816a34dc3 100644
--- a/sys/src/games/turtle.c
+++ b/sys/src/games/turtle.c
@@ -169,6 +169,8 @@ main()
 		if(s == nil) break;
 		runline(s);
 	}
+	if(lines == nil)
+		exits(nil);
 
 	if(initdraw(nil, nil, nil) < 0)
 		sysfatal("initdraw: %r");