The configgen tool is used to:- generate the parser for the configuration file based on the templates config_templ.h and config_templ.l- generate the GUI frontend "doxywizard" for creating a configuration file based on the templates doxywizard_templ.h and doxywizard_templ.cppIf you want to add a new configuration option to doxygen,then you should add a new entry the init() function in configgen.cppAfter that you can do a "make install" in this directory to update the config.l and config.h in doxygen's source directory.-Dimitri