Index: libitpp/CMakeLists.txt
===================================================================
--- libitpp.orig/CMakeLists.txt
+++ libitpp/CMakeLists.txt
@@ -25,7 +25,7 @@
 #
 # -------------------------------------------------------------------------
 
-cmake_minimum_required ( VERSION 2.8.6 )
+cmake_minimum_required ( VERSION 4.1.1 )
 
 set ( CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/Modules/ ${CMAKE_MODULE_PATH} )