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https://bugs.gentoo.org/957557
From c9371de7836d113c0b14bfa15ca70f00ebb3ac6f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christoph=20Gr=C3=BCninger?= <foss@grueninger.de>
Date: Mon, 24 Mar 2025 08:32:25 +0100
Subject: [PATCH] [cmake] Require minimum CMake version 3.5
Soon CMake 4.0 will be released. It requires that projects
set a minimum required CMake version of 3.5. There is a
workaround with an additional flag, but it would is better
to increase the minimum required version.
---
CMakeLists.txt | 6 +++---
test/CMakeLists.txt | 1 -
2 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7e8a528d8..0df533a5a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,6 @@
-# 3.5 is actually available almost everywhere, but this a good minimum
-cmake_minimum_required(VERSION 3.4)
+# 3.5 is actually available almost everywhere.
+# 3.30 as the upper policy limit avoids CMake deprecation warnings.
+cmake_minimum_required(VERSION 3.5...3.30)
# enable MSVC_RUNTIME_LIBRARY target property
# see https://cmake.org/cmake/help/latest/policy/CMP0091.html
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 1c60c07c5..6949d29c1 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -3,6 +3,5 @@ find_package(Threads REQUIRED)
set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
set(BUILD_MOCK ON CACHE BOOL "" FORCE)
-set(CMAKE_POLICY_DEFAULT_CMP0048 NEW)
if(YAML_USE_SYSTEM_GTEST)
find_package(GTest)
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