diff --git a/CMakeLists.txt b/CMakeLists.txt
index 08587a30e..f71e61d0e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -609,6 +609,11 @@ ENDIF()
 
 OPTION(OSG_USE_LOCAL_LUA_SOURCE "Enable to use local Lua source when building the lua plugin" ON)
 
+#
+# If you want to prevent CMake from picking up on any of the following optional 3rd Party dependencies in CMake 2.8 onwards
+# you can use the following style of command line option when invoking Cmake (here illustrating ignoring PythonLibs) :
+# cmake -DCMAKE_DISABLE_FIND_PACKAGE_PythonLibs=1 .
+#
 IF(ANDROID)
     ANDROID_3RD_PARTY()
 ELSE()