certtool-cfg.c: Silence -Wunused-variable if HAVE_IPV6 not set

Signed-off-by: Tim Rühsen <tim.ruehsen@gmx.de>

diff --git a/src/certtool-cfg.c b/src/certtool-cfg.c
index 75e1e57c54fe530ccd0cf932cd10d0ad87ff0e08..fbbb4c6ab96d6da7256d2850397711da56f153fa 100644 (file)
--- a/src/certtool-cfg.c
+++ b/src/certtool-cfg.c
@@ -1880,10 +1880,11 @@ int get_tls_server_status(void)
 /* convert a printable IP to binary */
 static int string_to_ip(unsigned char *ip, const char *str)
 {
-       int len = strlen(str);
        int ret;
 
 #if HAVE_IPV6
+       int len = strlen(str);
+
        if (strchr(str, ':') != NULL || len > 16) {     /* IPv6 */
                ret = inet_pton(AF_INET6, str, ip);
                if (ret <= 0) {