Increase cmake_minimum_required to 3.5

Eero Aaltonen · jaredgrubb · commit 05d507da0d15 · 2025-10-02T18:54:11.000-07:00
CMake version 3.27 deprecates compatibility with versions older than
3.5. Increase the minimum required so that the project can be built
without warnings.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.1)
+cmake_minimum_required(VERSION 3.5)
 project(docopt.cpp VERSION 0.6.2)
 
 include(GNUInstallDirs)
diff --git a/README.rst b/README.rst
@@ -87,7 +87,7 @@ Alternatively manual installation is done using (unix)::
 To link *docopt.cpp*, the simplest is to use CMake. The general structure of your
 ``CMakeLists.txt`` would be as follows::
 
-    cmake_minimum_required(VERSION 3.1)
+    cmake_minimum_required(VERSION 3.5)
 
     project(example)
 

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-cmake_minimum_required(VERSION 3.1)`
	`1`	`+cmake_minimum_required(VERSION 3.5)`
`2`	`2`	`project(docopt.cpp VERSION 0.6.2)`
`3`	`3`
`4`	`4`	`include(GNUInstallDirs)`