From b5aba60dc108163e0ec2eac70e2b400b042ed955 Mon Sep 17 00:00:00 2001
From: Even Rouault <even.rouault@spatialys.com>
Date: Sun, 14 Jan 2024 13:15:27 +0100
Subject: [PATCH] CMake: add a policy_max to cmake_minimum_required(), and
 remove obsolete cmake_policy() statements

---
 CMakeLists.txt       | 6 +-----
 cmake/policies.cmake | 4 ----
 2 files changed, 1 insertion(+), 9 deletions(-)
 delete mode 100644 cmake/policies.cmake

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 45bd855bd8..0f3b01a3d1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,16 +9,13 @@
 ################################################################################
 # General settings
 ################################################################################
-cmake_minimum_required(VERSION 3.16)
+cmake_minimum_required(VERSION 3.16...3.28)
 
 project(PROJ
   DESCRIPTION "PROJ coordinate transformation software library"
   LANGUAGES C CXX
 )
 
-# Only interpret if() arguments as variables or keywords when unquoted
-cmake_policy(SET CMP0054 NEW)
-
 # Set C++ version
 # Make CMAKE_CXX_STANDARD available as cache option overridable by user
 set(CMAKE_CXX_STANDARD 11
@@ -126,7 +123,6 @@ set(PROJ_BUILD_VERSION "${PROJ_SOVERSION}.${PROJ_VERSION}")
 include(Ccache)
 include(ProjConfig)
 include(ProjMac)
-include(policies)
 
 ################################################################################
 # Check for nlohmann_json
diff --git a/cmake/policies.cmake b/cmake/policies.cmake
deleted file mode 100644
index 35d0545ca5..0000000000
--- a/cmake/policies.cmake
+++ /dev/null
@@ -1,4 +0,0 @@
-if(CMAKE_MAJOR_VERSION GREATER 2)
-  cmake_policy(SET CMP0042 NEW)  # osx rpath
-  cmake_policy(SET CMP0011 NEW)  # policy setting
-endif()