+# Select what is compiled
+ADD_SUBDIRECTORY(common)
+add_subdirectory(tools)
+add_subdirectory(segmentation)
+add_subdirectory(registration)
+
+# Compilation options
+OPTION(CLITK_EXPERIMENTAL "Enable experimental software and features" OFF)
+OPTION(CLITK_BUILD_TOOLS "Build command-line tools" OFF)
+OPTION(CLITK_BUILD_SEGMENTATION "Build command-line segmentation tools" OFF)
+OPTION(CLITK_BUILD_REGISTRATION "Build command-line registration tools" OFF)
+OPTION(CLITK_MEMORY_INFO "Enable memory information" OFF)
+
+OPTION(CLITK_BUILD_VV "Build vv the 4D visualizer (requires VTK and QT)" ON)