[PATCH:libxtrans 2/2] Cast ctype(3) function arguments to unsigned char.

[Thomas Klausner]

Fixes warnings on at least NetBSD.

Signed-off-by: Thomas Klausner <wiz at NetBSD.org>
---
 Xtrans.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Xtrans.c b/Xtrans.c
index 9a6dfbc..ada53d3 100644
--- a/Xtrans.c
+++ b/Xtrans.c
@@ -164,8 +164,8 @@ TRANS(SelectTransport) (const char *protocol)
     protobuf[PROTOBUFSIZE-1] = '\0';
 
     for (i = 0; i < PROTOBUFSIZE && protobuf[i] != '\0'; i++)
-	if (isupper (protobuf[i]))
-	    protobuf[i] = tolower (protobuf[i]);
+	if (isupper ((unsigned char)protobuf[i]))
+	    protobuf[i] = tolower ((unsigned char)protobuf[i]);
 
     /* Look at all of the configured protocols */
 
-- 
1.9.0