fixed some compiler warnings

src/charon/plugins/stroke/stroke_config.c

@@ -19,6 +19,7 @@
 
 #include <daemon.h>
 #include <utils/mutex.h>
+#include <utils/lexparser.h>
 
 typedef struct private_stroke_config_t private_stroke_config_t;
 

src/charon/plugins/updown/updown_plugin.c

@@ -15,6 +15,9 @@
  * $Id$
  */
 
+#define _GNU_SOURCE
+#include <stdio.h>
+
 #include "updown_plugin.h"
 
 #include <daemon.h>