hunter: require CMake 3.11

Author: NeroBurner

CMakeLists.txt

@@ -19,8 +19,8 @@
 # For conditions of distribution and use, see the disclaimer
 # and license in png.h
 
-cmake_minimum_required(VERSION 3.1)
-cmake_policy(VERSION 3.1)
+cmake_minimum_required(VERSION 3.11)
+cmake_policy(VERSION 3.11)
 set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)
 
 include("cmake/HunterGate.cmake")

cmake/Config.cmake.in

@@ -4,9 +4,7 @@ find_dependency(ZLIB CONFIG)
 
 include("${CMAKE_CURRENT_LIST_DIR}/@targets_export_name@.cmake")
 
-# ALIAS for imported target requires CMake >= 3.11:
-# - https://cmake.org/cmake/help/latest/release/3.11.html#other
-if(NOT CMAKE_VERSION VERSION_LESS 3.11 AND NOT TARGET PNG::PNG)
+if(NOT TARGET PNG::PNG)
   set_target_properties(
       PNG::png
       PROPERTIES