Added support for make doxygen-doc
diff --git a/configure.ac b/configure.ac
index 8205d9d..3c82010 100644
--- a/configure.ac
+++ b/configure.ac
@@ -34,5 +34,15 @@
     AC_DEFINE_UNQUOTED([HAVE_BOOST_SHARED_PTR], 0, [1 if have the `boost::shared_ptr' class.])
 ])
 
+DX_HTML_FEATURE(ON)
+DX_CHM_FEATURE(OFF)
+DX_CHI_FEATURE(OFF)
+DX_MAN_FEATURE(OFF)
+DX_RTF_FEATURE(OFF)
+DX_XML_FEATURE(OFF)
+DX_PDF_FEATURE(OFF)
+DX_PS_FEATURE(OFF)
+DX_INIT_DOXYGEN([$PACKAGE_NAME],[Doxyfile])
+
 AC_CONFIG_FILES([Makefile])
 AC_OUTPUT