diff -ur root-6.06.02.orig/documentation/doxygen/Doxyfile root-6.06.02/documentation/doxygen/Doxyfile
--- root-6.06.02.orig/documentation/doxygen/Doxyfile	2016-03-03 10:36:03.000000000 +0100
+++ root-6.06.02/documentation/doxygen/Doxyfile	2016-04-04 04:40:27.000000000 +0200
@@ -2058,7 +2058,7 @@
 # The default value is: NO.
 # This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
 
-MACRO_EXPANSION        = NO
+MACRO_EXPANSION        = YES
 
 # If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES then
 # the macro expansion is limited to the macros specified with the PREDEFINED and
@@ -2066,7 +2066,7 @@
 # The default value is: NO.
 # This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
 
-EXPAND_ONLY_PREDEF     = NO
+EXPAND_ONLY_PREDEF     = YES
 
 # If the SEARCH_INCLUDES tag is set to YES the includes files in the
 # INCLUDE_PATH will be searched if a #include is found.
@@ -2098,7 +2098,7 @@
 # recursively expanded use the := operator instead of the = operator.
 # This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
 
-PREDEFINED             =
+PREDEFINED             = ClassDef(x,y)=// ClassImp(x)=// ClassImpQ(x)=// templateClassImp(x)=// NamespaceImp(x)=//
 
 # 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. The