--- a/include/def.h	Thu Nov 29 11:58:02 2007 +0100
+++ b/include/def.h	Mon Dec 03 11:30:38 2007 +0100
@@ -60,9 +60,12 @@
 /* Should not be modified */
 #define Rx 0
 #define Tx 1
+#ifndef TRUE
 #define TRUE  1
+#endif
+#ifndef FALSE
 #define FALSE 0
-
+#endif
     
 /** Status of the SDO transmission
  */