diff --git a/doc/Doxyfile.in b/doc/Doxyfile.in
--- a/doc/Doxyfile.in
+++ b/doc/Doxyfile.in
@@ -1,4 +1,4 @@
-# Doxyfile 1.5.7.1
+# Doxyfile 1.5.9
 
 #---------------------------------------------------------------------------
 # Project related configuration options
@@ -21,7 +21,6 @@
 JAVADOC_AUTOBRIEF      = NO
 QT_AUTOBRIEF           = NO
 MULTILINE_CPP_IS_BRIEF = NO
-DETAILS_AT_TOP         = YES
 INHERIT_DOCS           = NO
 SEPARATE_MEMBER_PAGES  = NO
 TAB_SIZE               = 8
@@ -71,7 +70,7 @@
 SHOW_FILES             = YES
 SHOW_NAMESPACES        = YES
 FILE_VERSION_FILTER    = 
-LAYOUT_FILE            = DoxygenLayout.xml
+LAYOUT_FILE            = "@abs_top_srcdir@/doc/DoxygenLayout.xml"
 #---------------------------------------------------------------------------
 # configuration options related to warning and progress messages
 #---------------------------------------------------------------------------
@@ -114,7 +113,7 @@
 #---------------------------------------------------------------------------
 # configuration options related to source browsing
 #---------------------------------------------------------------------------
-SOURCE_BROWSER         = NO
+SOURCE_BROWSER         = @LEMON_DOC_SOURCE_BROWSER@
 INLINE_SOURCES         = NO
 STRIP_CODE_COMMENTS    = YES
 REFERENCED_BY_RELATION = NO
@@ -223,9 +222,9 @@
 EXPAND_AS_DEFINED      = 
 SKIP_FUNCTION_MACROS   = YES
 #---------------------------------------------------------------------------
-# Configuration::additions related to external references   
+# Options related to the search engine   
 #---------------------------------------------------------------------------
-TAGFILES               = "@abs_top_srcdir@/doc/libstdc++.tag = http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/  "
+TAGFILES               = "@abs_top_builddir@/doc/libstdc++.tag = http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/  "
 GENERATE_TAGFILE       = html/lemon.tag
 ALLEXTERNALS           = NO
 EXTERNAL_GROUPS        = NO