Use centralized cmake version

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
(cherry picked from commit 51eb2b1233)

CMakeLists.txt

@@ -7,7 +7,11 @@
 ############################################
 
 
-cmake_minimum_required( VERSION 3.5 )
+##### set project version ########################
+
+include( TDEVersion )
+cmake_minimum_required( VERSION ${TDE_CMAKE_MINIMUM_VERSION} )
+tde_set_project_version( )
 
 
 #### general package setup
@@ -35,11 +39,6 @@ include( CheckCSourceCompiles   )
 include( TDEMacros )
 
 
-##### set version number ########################
-
-tde_set_project_version( )
-
-
 ##### setup install paths
 
 include( TDESetupPaths )