Define compatible version range to avoid warnings

Code7R · Code7R · commit bd31f3744c79 · 2025-12-27T17:31:55.000+01:00
This uses the legal "...max" trick which works since version 3.12 while
retaining compatibility with older versions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.5...3.15)
 CMAKE_POLICY (SET CMP0053 NEW)
 PROJECT(ICEWM CXX)
 
diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.5...3.15)
 PROJECT(ICEWM CXX)
 
 #
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
@@ -1,6 +1,6 @@
 
 # to use target_link_options
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.5...3.15)
 
 PROJECT(ICEWM CXX)
 

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-cmake_minimum_required(VERSION 3.5)`
	`1`	`+cmake_minimum_required(VERSION 3.5...3.15)`
`2`	`2`	`CMAKE_POLICY (SET CMP0053 NEW)`
`3`	`3`	`PROJECT(ICEWM CXX)`
`4`	`4`