--- a/doc/doxygen.conf	Wed Sep 06 14:03:39 2006 +0200
+++ b/doc/doxygen.conf	Wed Sep 06 14:04:03 2006 +0200
@@ -996,7 +996,7 @@
 # undefined via #undef or recursively expanded use the := operator 
 # instead of the = operator.
 
-PREDEFINED             = 
+PREDEFINED             = RUN_SELF_TESTS
 
 # If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then 
 # this tag can be used to specify a list of macro names that should be expanded.