Bug #15327: configure: --with-tcp-port option being partially ignored

make sure that if builder configured with a non-standard (!= 3306)
default TCP port that value actually gets used throughout. if they
didn't configure a value, assume "use a sensible default", which
will be read from /etc/services or, failing that, from the factory
default. That makes the order of preference
- command-line option
- my.cnf, where applicable
- $MYSQL_TCP_PORT environment variable
- /etc/services (unless configured --with-tcp-port)
- default port (--with-tcp-port=... or factory default)

netware/mysqld_safe.c

@@ -189,7 +189,7 @@ void start_defaults(int argc, char *argv[])
   snprintf(address, PATH_MAX, "0.0.0.0");
 
   // port
-  snprintf(port, PATH_MAX, "3306");
+  snprintf(port, PATH_MAX, "%d", MYSQL_PORT);
 
   // default option
   default_option[0]= NULL;