COMP: Consistently set use of CMake 3.9.5 and options

cmake_minimum_required(VERSION 3.9.5 FATAL_ERROR)
foreach(p
    ## Only policies introduced after the cmake_minimum_required
    ## version need to explicitly be set to NEW.
    CMP0070 #3.10.0 Define ``file(GENERATE)`` behavior for relative paths.
    CMP0071 #3.10.0 Let ``AUTOMOC`` and ``AUTOUIC`` process ``GENERATED`` files.
    )
  if(POLICY ${p})
    cmake_policy(SET ${p} NEW)
  endif()
endforeach()

Change-Id: I30c9a4f2401bf83bcdb56ba89d44b24ca8342853

CMakeLists.txt

@@ -1,8 +1,8 @@
 cmake_minimum_required(VERSION 3.9.5 FATAL_ERROR)
 
 foreach(p
-    ## Only policies introduced after the cmake_minimum_required (3.8.2) need
-    ## to explicitly be set to NEW.
+    ## Only policies introduced after the cmake_minimum_required
+    ## version need to explicitly be set to NEW.
     CMP0070 #3.10.0 Define ``file(GENERATE)`` behavior for relative paths.
     CMP0071 #3.10.0 Let ``AUTOMOC`` and ``AUTOUIC`` process ``GENERATED`` files.
     )

Examples/Installation/CMakeLists.txt

@@ -1,8 +1,15 @@
 # This is the root ITK CMakeLists file.
-cmake_minimum_required(VERSION 2.8.12)
-if(COMMAND CMAKE_POLICY)
-  cmake_policy(SET CMP0003 NEW)
-endif()
+cmake_minimum_required(VERSION 3.9.5 FATAL_ERROR)
+foreach(p
+    ## Only policies introduced after the cmake_minimum_required
+    ## version need to explicitly be set to NEW.
+    CMP0070 #3.10.0 Define ``file(GENERATE)`` behavior for relative paths.
+    CMP0071 #3.10.0 Let ``AUTOMOC`` and ``AUTOUIC`` process ``GENERATED`` files.
+    )
+  if(POLICY ${p})
+    cmake_policy(SET ${p} NEW)
+  endif()
+endforeach()
 
 
 # This project is designed to be built outside the Insight source tree.

Modules/Core/Common/CMake/itkCheckPrivateDynamicCast.cmake

@@ -52,8 +52,17 @@ int main(void)
 # accomplished with a custom command as a post build step for the
 # compilation of the executable.
   file(WRITE "${test_project_dir}/CMakeLists.txt" "
-cmake_minimum_required(VERSION 2.8.12 FATAL_ERROR)
-cmake_policy(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.9.5 FATAL_ERROR)
+foreach(p
+    ## Only policies introduced after the cmake_minimum_required
+    ## version need to explicitly be set to NEW.
+    CMP0070 #3.10.0 Define ``file(GENERATE)`` behavior for relative paths.
+    CMP0071 #3.10.0 Let ``AUTOMOC`` and ``AUTOUIC`` process ``GENERATED`` files.
+    )
+  if(POLICY ${p})
+    cmake_policy(SET ${p} NEW)
+  endif()
+endforeach()
 project(support_private_dynamic_cast CXX)
 add_library(base SHARED \"base.cxx\")
 set_target_properties(base PROPERTIES CXX_VISIBILITY_PRESET hidden)

Modules/Video/BridgeOpenCV/CMakeLists.txt

@@ -1,4 +1,15 @@
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.9.5 FATAL_ERROR)
+foreach(p
+    ## Only policies introduced after the cmake_minimum_required
+    ## version need to explicitly be set to NEW.
+    CMP0070 #3.10.0 Define ``file(GENERATE)`` behavior for relative paths.
+    CMP0071 #3.10.0 Let ``AUTOMOC`` and ``AUTOUIC`` process ``GENERATED`` files.
+    )
+  if(POLICY ${p})
+    cmake_policy(SET ${p} NEW)
+  endif()
+endforeach()
+
 if(NOT ITK_SOURCE_DIR)
   include(itk-module-init.cmake)
 endif()

Testing/TestExternal/CMakeLists.txt

@@ -1,13 +1,11 @@
 # This project builds the test directories from all ITK modules as a separate
 # project outside the main ITK build tree as if they were an application.
-cmake_minimum_required(VERSION 2.8.12 FATAL_ERROR)
-
+cmake_minimum_required(VERSION 3.9.5 FATAL_ERROR)
 foreach(p
-    CMP0025 # CMake 3.0
-    CMP0042 # CMake 3.0
-    CMP0054 # CMake 3.1
-    CMP0056 # CMake 3.2
-    CMP0058 # CMake 3.3
+    ## Only policies introduced after the cmake_minimum_required
+    ## version need to explicitly be set to NEW.
+    CMP0070 #3.10.0 Define ``file(GENERATE)`` behavior for relative paths.
+    CMP0071 #3.10.0 Let ``AUTOMOC`` and ``AUTOUIC`` process ``GENERATED`` files.
     )
   if(POLICY ${p})
     cmake_policy(SET ${p} NEW)

Wrapping/CMakeLists.txt

@@ -16,11 +16,12 @@
 #
 #==========================================================================*/
 
-cmake_minimum_required(VERSION 2.8.12 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.9.5 FATAL_ERROR)
 foreach(p
-    CMP0025 # CMake 3.0
-    CMP0042 # CMake 3.0
-    CMP0054 # CMake 3.1
+    ## Only policies introduced after the cmake_minimum_required
+    ## version need to explicitly be set to NEW.
+    CMP0070 #3.10.0 Define ``file(GENERATE)`` behavior for relative paths.
+    CMP0071 #3.10.0 Let ``AUTOMOC`` and ``AUTOUIC`` process ``GENERATED`` files.
     )
   if(POLICY ${p})
     cmake_policy(SET ${p} NEW)