From 097b315235190dbe130b11042b98a835421c5329 Mon Sep 17 00:00:00 2001
From: "John \"Elwin\" Edwards" <elwin@rlgallery.org>
Date: Fri, 31 Jul 2015 20:12:33 -0400
Subject: [PATCH] rogue4: don't try to close the scorefile if it isn't open.

The MSVC library uses a debug assertion to prevent closing file
descriptors that are negative.  This is always the case with the
scoreboard file descriptor if the scoreboard has been compiled out.
---
 rogue4/save.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/rogue4/save.c b/rogue4/save.c
index 38ed64f..ee95184 100644
--- a/rogue4/save.c
+++ b/rogue4/save.c
@@ -160,7 +160,10 @@ register FILE *savef;
     /*
      * close any open score file
      */
-    close(fd);
+    if (fd >= 0) {
+        close(fd);
+        fd = -1;
+    }
     move(LINES-1, 0);
     refresh();
     fstat(md_fileno(savef), &sbuf);