build: support cmake 4.0 (#1214)

kkysen · web-flow · commit b1766a148a8b · 2025-05-01T16:58:09.000-04:00
bump `cmake_minimum_required` to support cmake 4.0 build

```
    CMake Error at CMakeLists.txt:1 (cmake_minimum_required):
      Compatibility with CMake &lt; 3.5 has been removed from CMake.
```
diff --git a/c2rust-ast-exporter/src/CMakeLists.txt b/c2rust-ast-exporter/src/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.4.3)
+cmake_minimum_required(VERSION 3.5)
 project(ASTExporter)
 
 #################################################
diff --git a/examples/json-c/repo/CMakeLists.txt b/examples/json-c/repo/CMakeLists.txt
@@ -1,6 +1,6 @@
 #Licensed under the MIT license. See LICENSE file in the project root for full license information.
 
-cmake_minimum_required(VERSION 2.8.7)
+cmake_minimum_required(VERSION 3.5)
 cmake_policy(SET CMP0048 NEW)
 project(json-c VERSION 0.13.1)
 

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-cmake_minimum_required(VERSION 3.4.3)`
	`1`	`+cmake_minimum_required(VERSION 3.5)`
`2`	`2`	`project(ASTExporter)`
`3`	`3`
`4`	`4`	`#################################################`