Define version string if undefined to allow version string to be overridden in makefile
diff --git a/contiki/ek/contiki-version.h b/contiki/ek/contiki-version.h
index 6e5ab9b..4f4680f 100644
--- a/contiki/ek/contiki-version.h
+++ b/contiki/ek/contiki-version.h
@@ -30,11 +30,13 @@
  * 
  * Author: Adam Dunkels <adam@sics.se>
  *
- * $Id: contiki-version.h,v 1.3 2004/09/14 00:50:52 adamdunkels Exp $
+ * $Id: contiki-version.h,v 1.4 2004/09/18 20:14:09 adamdunkels Exp $
  */
 #ifndef __CONTIKI_VERSION__
 #define __CONTIKI_VERSION__
 
+#ifndef CONTIKI_VERSION_STRING
 #define CONTIKI_VERSION_STRING "Contiki 1.2-devel1"
+#endif /* CONTIKI_VERSION_STRING */
 
 #endif /* __CONTIKI_VERSION__ */