Fixed a few compile errors and warnings.

lib/ftp.c

@@ -4111,8 +4111,15 @@ static CURLcode Curl_ftp_setup_connection(struct connectdata * conn)
 #ifndef CURL_DISABLE_HTTP
     if (conn->handler == &Curl_handler_ftp)
       conn->handler = &Curl_handler_ftp_proxy;
-  else
+    else {
+#ifdef USE_SSL
       conn->handler = &Curl_handler_ftps_proxy;
+#else
+      failf(data, "FTPS not supported!");
+      return CURLE_UNSUPPORTED_PROTOCOL;
+#endif
+    }
+
 #else
     failf(data, "FTP over http proxy requires HTTP support built-in!");
     return CURLE_UNSUPPORTED_PROTOCOL;

lib/http.c

@@ -110,9 +110,11 @@
  */
 
 static CURLcode Curl_https_connecting(struct connectdata *conn, bool *done);
+#ifdef USE_SSL
 static int Curl_https_getsock(struct connectdata *conn,
                               curl_socket_t *socks,
                               int numsocks);
+#endif
 
 /*
  * HTTP handler interface.

lib/url.c

@@ -194,7 +194,7 @@ extern sigjmp_buf curl_jmpenv;
  * Protocol table.
  */
 
-static const struct Curl_handler * protocols[] = {
+static const struct Curl_handler * const protocols[] = {
 
 #ifndef CURL_DISABLE_HTTP
   &Curl_handler_http,
@@ -3020,7 +3020,7 @@ static CURLcode setup_range(struct SessionHandle *data)
 static CURLcode setup_connection_internals(struct SessionHandle *data,
                                            struct connectdata *conn)
 {
-  const struct Curl_handler * * pp;
+  const struct Curl_handler * const * pp;
   const struct Curl_handler * p;
   CURLcode result;
 
@@ -3028,7 +3028,7 @@ static CURLcode setup_connection_internals(struct SessionHandle *data,
 
   /* Scan protocol handler table. */
 
-  for (pp = protocols; p = *pp; pp++)
+  for (pp = protocols; (p = *pp) != NULL; pp++)
     if (strequal(p->scheme, conn->protostr)) {
       /* Protocol found in table. Perform setup complement if some. */
       conn->handler = p;