add cast to silent compiler warning with 64bit systems.

diff --git a/lib/connect.c b/lib/connect.c
index 7865216bd080a08d375dc5b4f42f81cf6056a402..2a6b003e05e81cbe0e866dd48d572e00375dcf7d 100644 (file)
--- a/lib/connect.c
+++ b/lib/connect.c
@@ -277,7 +277,7 @@ static CURLcode bindlocal(struct connectdata *conn,
        * hostname or ip address.
        */
       if(setsockopt(sockfd, SOL_SOCKET, SO_BINDTODEVICE,
-                    dev, strlen(dev)+1) != 0) {
+                    dev, (curl_socklen_t)strlen(dev)+1) != 0) {
         error = SOCKERRNO;
         infof(data, "SO_BINDTODEVICE %s failed with errno %d: %s;"
               " will do regular bind\n",