From de3b3c0e74f94c9dd1a5bd3a865ac8253473c4de Mon Sep 17 00:00:00 2001
From: "Tim J. Robbins" <tjr@FreeBSD.org>
Date: Thu, 15 Jul 2004 09:23:04 +0000
Subject: [PATCH] Avoid passing negative values to isspace() on machines with
 signed chars.

---
 usr.bin/column/column.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/usr.bin/column/column.c b/usr.bin/column/column.c
index 31f316f4d059..03856521c2af 100644
--- a/usr.bin/column/column.c
+++ b/usr.bin/column/column.c
@@ -269,7 +269,7 @@ input(FILE *fp)
 		    NULL)
 			err(1, (char *)NULL);
 	while (fgets(buf, MAXLINELEN, fp)) {
-		for (p = buf; *p && isspace(*p); ++p);
+		for (p = buf; *p && isspace((unsigned char)*p); ++p);
 		if (!*p)
 			continue;
 		if (!(p = strchr(p, '\n'))) {