Source: https://github.com/wgois/OIS/pull/98

From b71eafcb2e95c909b93d23937c420eab8a31536d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christoph=20Gr=C3=BCninger?= <foss@grueninger.de>
Date: Tue, 8 Jul 2025 19:35:59 +0200
Subject: [PATCH] Require CMake 3.10 or newer

CMake 4.0 refuses to work with minimum
require of CMake 3.4 or below. Everything
below 3.10 is deprecated.
---
 CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 951b2b1..98c67d3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.8)
+cmake_minimum_required(VERSION 3.10)
 project(OIS)
 
 set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/CmakeModules)


* asturm 2025-10-01: How did that ever work?
Gentoo-bug: https://bugs.gentoo.org/954105#c9

--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -188,8 +188,7 @@
 if(UNIX)
 
     if (NOT APPLE)
-        add_dependencies(OIS X11)
-        target_link_libraries(OIS X11)
+        target_link_libraries(OIS ${X11_LIBRARIES})
     endif()
 
     set_target_properties(OIS PROPERTIES