From eb15aa1822623116d37b654465b55c56ffe6663d Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@gnu.org>
Date: Tue, 28 Jun 1994 19:00:30 +0000
Subject: [PATCH] (a_write): Loop while *ANNOT is listp, not consp.  Previous
 code omitted all data from output files when *ANNOT was nil.

---
 src/fileio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/fileio.c b/src/fileio.c
index 0a04f713d7b..1446eaf4033 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -3296,7 +3296,7 @@ a_write (desc, addr, len, pos, annot)
   int nextpos;
   int lastpos = pos + len;
 
-  while (CONSP (*annot))
+  while (NILP (*annot) || CONSP (*annot))
     {
       tem = Fcar_safe (Fcar (*annot));
       if (INTEGERP (tem) && XINT (tem) >= pos && XFASTINT (tem) <= lastpos)
-- 
2.30.2