From a149d8bd56edc2f06643118ed8aac8bce6ebad6d Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Sat, 1 Jun 2013 13:58:23 -0400
Subject: [PATCH] Fix unportable usage of isspace().

Must cast char argument to unsigned to avoid doing the wrong thing
with high-bit-set characters.  Oversight in commit
30b5ede7157e34e77c7914b8ecfd55aa8da6edc3.
---
 src/bin/pg_basebackup/pg_basebackup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/bin/pg_basebackup/pg_basebackup.c b/src/bin/pg_basebackup/pg_basebackup.c
index 1e22969d55..56657a42c4 100644
--- a/src/bin/pg_basebackup/pg_basebackup.c
+++ b/src/bin/pg_basebackup/pg_basebackup.c
@@ -1134,7 +1134,7 @@ escapeConnectionParameter(const char *src)
 
 	for (p = src; *p; p++)
 	{
-		if (isspace(*p))
+		if (isspace((unsigned char) *p))
 		{
 			need_quotes = true;
 			break;