--- CMakeLists.txt.orig	2013-09-14 19:52:58.000000000 +0900
+++ CMakeLists.txt	2013-09-14 19:53:06.000000000 +0900
@@ -29,7 +29,7 @@
 	)
 ENDIF(NOT WIN32)
 
-add_subdirectory( doc )
+#add_subdirectory( doc )
 add_subdirectory( libcore )
 add_subdirectory( cgview )
 add_subdirectory( libviews )