--- CMakeLists.txt.orig	2013-05-08 19:39:25.000000000 +0900
+++ CMakeLists.txt	2013-05-08 19:39:31.000000000 +0900
@@ -19,6 +19,6 @@
 add_subdirectory(src)
 add_subdirectory(mime)
 add_subdirectory(puzzles)
-add_subdirectory(doc)
+#add_subdirectory(doc)
 
 macro_display_feature_log()