Avoid tons of warnings with cmake 2.6

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6247aaf2175d27f2e2660b68c697e258aa3a07e4..341660534cbc30eb2a9acda23c1a461da87462af 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,6 +2,8 @@
 PROJECT(BBTK) 
 #-----------------------------------------------------------------------------
 
+cmake_minimum_required(VERSION 2.4)
+
 #-----------------------------------------------------------------------------
 # Set global configuration of the toolkit
 INCLUDE(kernel/cmake/BBTKRootCMakeLists.cmake)