Add option for building wxWindows GUI for CMake

Source/CMakeLists.txt

@@ -108,6 +108,12 @@ IF (UNIX)
   ENDIF (CURSES_LIBRARY)
 ENDIF (UNIX)
 
+OPTION(CMAKE_BUILD_WX_DIALOG "Build wxWindows dialog for CMake" FALSE)
+MARK_AS_ADVANCED(CMAKE_BUILD_WX_DIALOG)
+IF(CMAKE_BUILD_WX_DIALOG)
+  SUBDIRS(WXDialog)
+ENDIF(CMAKE_BUILD_WX_DIALOG)
+
 IF (NOT DART_ROOT)
 SET(MAKEPROGRAM ${CMAKE_MAKE_PROGRAM})
 ENDIF (NOT DART_ROOT)