--- CMakeLists.txt.orig	2013-01-24 07:07:35.000000000 +0900
+++ CMakeLists.txt	2013-02-17 14:01:39.000000000 +0900
@@ -13,7 +13,7 @@
 
 add_subdirectory( sounds ) 
 add_subdirectory( pics ) 
-add_subdirectory( doc )
+#add_subdirectory( doc )
 
 ########### next target ###############
 
