Turn on anonymous namespaces

Doxyfile

 # Doxyfile 1.8.6
 
 # This file describes the settings to be used by the documentation system
 # doxygen (www.doxygen.org) for a project.
 #
 # All text after a double hash (##) is considered a comment and is placed in
 # front of the TAG it is preceding.
 #
 # All text after a single hash (#) is considered a comment and will be ignored.
 # The format is:
@@ skipping 423 matching lines @@
 
 EXTRACT_LOCAL_METHODS  = NO
 
 # If this flag is set to YES, the members of anonymous namespaces will be
 # extracted and appear in the documentation as a namespace called
 # 'anonymous_namespace{file}', where file will be replaced with the base name of
 # the file that contains the anonymous namespace. By default anonymous namespace
 # are hidden.
 # The default value is: NO.
 
-EXTRACT_ANON_NSPACES   = NO
+EXTRACT_ANON_NSPACES   = YES
 
 # If the HIDE_UNDOC_MEMBERS tag is set to YES, doxygen will hide all
 # undocumented members inside documented classes or files. If set to NO these
 # members will be included in the various overviews, but no documentation
 # section is generated. This option has no effect if EXTRACT_ALL is enabled.
 # The default value is: NO.
 
 HIDE_UNDOC_MEMBERS     = NO
 
 # If the HIDE_UNDOC_CLASSES tag is set to YES, doxygen will hide all
@@ skipping 1839 matching lines @@
 # This tag requires that the tag HAVE_DOT is set to YES.
 
 GENERATE_LEGEND        = YES
 
 # If the DOT_CLEANUP tag is set to YES doxygen will remove the intermediate dot
 # files that are used to generate the various graphs.
 # The default value is: YES.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
 DOT_CLEANUP            = YES