Use centralized cmake version

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>

CMakeLists.txt

@@ -10,15 +10,19 @@
 ############################################
 
 
-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
+##### general package setup
 
 project( tde-guidance )
 
 
-#### include essential cmake modules
+##### include essential cmake modules
 
 include( FindPkgConfig          )
 include( CheckSymbolExists      )
@@ -29,16 +33,11 @@ include( CheckCXXSourceCompiles )
 include( CheckTypeSize          )
 
 
-#### include our cmake modules
+##### include our cmake modules
 
 include( TDEMacros )
 
 
-##### set version number
-
-tde_set_project_version( )
-
-
 ##### setup install paths
 
 include( TDESetupPaths )