use CMake_SOURCE and not CMAKE_ROOT

CMakeLists.txt

@@ -3,7 +3,7 @@ PROJECT(CMake)
 SUBDIRS(Source Modules Templates Utilities)
 
 # Include the standard Dart testing module
-INCLUDE (${CMAKE_ROOT}/Modules/Dart.cmake)
+INCLUDE (${CMake_SOURCE_DIR}/Modules/Dart.cmake)
 INCLUDE (${CMAKE_BINARY_DIR}/Source/InitialConfigureFlags.cmake OPTIONAL)
 IF(CMAKE_CONFIGURE_INSTALL_PREFIX)
   SET(CMAKE_INSTALL_PREFIX ${CMAKE_CONFIGURE_INSTALL_PREFIX} )

Source/CMakeLists.txt

@@ -1,4 +1,4 @@
-INCLUDE (${CMAKE_ROOT}/Modules/FindFLTK.cmake)
+INCLUDE (${CMake_SOURCE_DIR}/Modules/FindFLTK.cmake)
 IF(FLTK_LIBRARY)
   IF(FLTK_INCLUDE_PATH)
     OPTION(BUILD_FLTK_GUI "Build FLTK CMake GUI." "OFF")
@@ -48,10 +48,10 @@ IF (WIN32)
 ENDIF (WIN32)
 
 IF (UNIX)
-  INCLUDE (${CMAKE_ROOT}/Modules/FindCurses.cmake OPTIONAL)
+  INCLUDE (${CMake_SOURCE_DIR}/Modules/FindCurses.cmake OPTIONAL)
   IF (CURSES_LIBRARY)
     SUBDIRS(CursesDialog/form)
-    INCLUDE(${CMAKE_ROOT}/Source/CursesDialog/CMakeLists.txt)
+    INCLUDE(${CMake_SOURCE_DIR}/Source/CursesDialog/CMakeLists.txt)
   ENDIF (CURSES_LIBRARY)
 ENDIF (UNIX)