From cd83514ad334724c8e467a603ecf2864eb89a4ca Mon Sep 17 00:00:00 2001
From: YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
Date: Wed, 28 Mar 2007 08:16:19 +0000
Subject: [PATCH] (readchar): Extend BLOCK_INPUT block to ferror/clearerr.

---
 src/lread.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/lread.c b/src/lread.c
index 30aab7cce32..1f1ddddde4f 100644
--- a/src/lread.c
+++ b/src/lread.c
@@ -327,18 +327,18 @@ readchar (readcharfun)
     {
       BLOCK_INPUT;
       c = getc (instream);
-      UNBLOCK_INPUT;
 #ifdef EINTR
       /* Interrupted reads have been observed while reading over the network */
       while (c == EOF && ferror (instream) && errno == EINTR)
 	{
+	  UNBLOCK_INPUT;
 	  QUIT;
-	  clearerr (instream);
 	  BLOCK_INPUT;
+	  clearerr (instream);
 	  c = getc (instream);
-	  UNBLOCK_INPUT;
 	}
 #endif
+      UNBLOCK_INPUT;
       return c;
     }
 
-- 
2.39.5