--- CMakeLists.txt.orig	2013-01-24 07:05:02.000000000 +0900
+++ CMakeLists.txt	2013-02-17 14:12:47.000000000 +0900
@@ -17,4 +17,4 @@
 add_subdirectory(src)
 add_subdirectory(arenas)
 add_subdirectory(players)
-add_subdirectory(doc)
+#add_subdirectory(doc)