From 84dc0511c141db14e5d8ae982661179a3061a6d4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Johannes=20G=C3=BCnther?= <johannes.guenther@intel.com>
Date: Fri, 31 Oct 2025 10:07:02 +0100
Subject: [PATCH] Bump CMake minimum required version to 3.10

Newer CMake v4.x dropped support for versions < 3.10
---
 CMakeLists.txt                       | 14 +-------------
 common/cmake/FindTBB.cmake           |  2 +-
 doc/src/compilation.md               |  2 +-
 scripts/ospray/CMakeLists.txt        |  2 +-
 tests/CMakeLists.txt                 |  4 ++--
 tutorials/embree_info/CMakeLists.txt |  4 ++--
 tutorials/find_embree/CMakeLists.txt |  2 +-
 tutorials/minimal/CMakeLists.txt     |  2 +-
 8 files changed, 10 insertions(+), 22 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5f215254fb..47076d84fd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 ## Copyright 2009-2021 Intel Corporation
 ## SPDX-License-Identifier: Apache-2.0
 
-CMAKE_MINIMUM_REQUIRED(VERSION 3.5)
+CMAKE_MINIMUM_REQUIRED(VERSION 3.10)
 
 SET(EMBREE_VERSION_MAJOR 4)
 SET(EMBREE_VERSION_MINOR 4)
@@ -57,27 +57,15 @@ IF(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/.git")
 ENDIF()
 
 IF(COMMAND cmake_policy)
-  if (POLICY CMP0003)
-    cmake_policy(SET CMP0003 NEW)
-  endif()
-  if (POLICY CMP0042)
-    cmake_policy(SET CMP0042 NEW)
-  endif()
   if(POLICY CMP0072)
     cmake_policy(SET CMP0072 NEW)
   endif()
-  if(POLICY CMP0022)
-    cmake_policy(SET CMP0022 NEW)
-  endif()
   if(POLICY CMP0074)
     cmake_policy(SET CMP0074 NEW)
   endif()
   if(POLICY CMP0135)
     cmake_policy(SET CMP0135 NEW)
   endif()
-  if(POLICY CMP0057)
-    cmake_policy(SET CMP0057 NEW)
-  endif()
 ENDIF()
 
 MARK_AS_ADVANCED(CMAKE_BACKWARDS_COMPATIBILITY)
diff --git a/common/cmake/FindTBB.cmake b/common/cmake/FindTBB.cmake
index 2ff75b9f66..ed7db34dbe 100644
--- a/common/cmake/FindTBB.cmake
+++ b/common/cmake/FindTBB.cmake
@@ -37,7 +37,7 @@
 #===============================================================================
 
 # We use INTERFACE libraries, which are only supported in 3.x
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.10)
 
 # These two are used to automatically find the root and include directories.
 set(_TBB_INCLUDE_SUBDIR "include")
diff --git a/doc/src/compilation.md b/doc/src/compilation.md
index 0a686c4756..c8fc8b2899 100644
--- a/doc/src/compilation.md
+++ b/doc/src/compilation.md
@@ -48,7 +48,7 @@ installation, put the path to `ispc` permanently into your `PATH` environment
 variable or you set the `EMBREE_ISPC_EXECUTABLE` variable to point at the ISPC
 executable during CMake configuration.
 
-You additionally have to install CMake 3.1.0 or higher and the developer
+You additionally have to install CMake 3.10 or higher and the developer
 version of [GLFW](https://www.glfw.org/) version 3.
 
 Under macOS, all these dependencies can be installed
diff --git a/scripts/ospray/CMakeLists.txt b/scripts/ospray/CMakeLists.txt
index b9260b058a..79909ec733 100644
--- a/scripts/ospray/CMakeLists.txt
+++ b/scripts/ospray/CMakeLists.txt
@@ -3,7 +3,7 @@
 
 ## Global settings ##
 
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.10)
 
 list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/dependencies)
 
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index e4f8922c81..e2828acb07 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -50,7 +50,7 @@ IF (EMBREE_TESTING_INSTALL_TESTS)
     "# Copyright 2009-2021 Intel Corporation\n"
     "# SPDX-License-Identifier: Apache-2.0\n"
     "# This file was automatically generated\n"
-    "cmake_minimum_required(VERSION 3.5)\n"
+    "cmake_minimum_required(VERSION 3.10)\n"
     "\n"
     "project(embree-testing)\n"
     "\n"
@@ -119,4 +119,4 @@ IF (EMBREE_TESTING_INSTALL_TESTS)
             DESTINATION "${CMAKE_INSTALL_TESTDIR}"
             COMPONENT testing)
 
-ENDIF()
\ No newline at end of file
+ENDIF()
diff --git a/tutorials/embree_info/CMakeLists.txt b/tutorials/embree_info/CMakeLists.txt
index 6d3988a3b6..6c111b9701 100644
--- a/tutorials/embree_info/CMakeLists.txt
+++ b/tutorials/embree_info/CMakeLists.txt
@@ -2,7 +2,7 @@
 ## SPDX-License-Identifier: Apache-2.0
 
 PROJECT(embree_info)
-CMAKE_MINIMUM_REQUIRED(VERSION 3.5)
+CMAKE_MINIMUM_REQUIRED(VERSION 3.10)
 
 IF (NOT EMBREE_PROJECT_COMPILATION)
   FIND_PACKAGE(embree REQUIRED)
@@ -33,4 +33,4 @@ IF (COMMAND SIGN_TARGET)
   SIGN_TARGET(embree_info)
 ENDIF()
 
-ADD_EMBREE_GENERIC_TEST(embree_info embree_info)
\ No newline at end of file
+ADD_EMBREE_GENERIC_TEST(embree_info embree_info)
diff --git a/tutorials/find_embree/CMakeLists.txt b/tutorials/find_embree/CMakeLists.txt
index d526e19e74..4db9b70300 100644
--- a/tutorials/find_embree/CMakeLists.txt
+++ b/tutorials/find_embree/CMakeLists.txt
@@ -2,7 +2,7 @@
 ## SPDX-License-Identifier: Apache-2.0
 
 PROJECT(find_embree)
-CMAKE_MINIMUM_REQUIRED(VERSION 3.5)
+CMAKE_MINIMUM_REQUIRED(VERSION 3.10)
 
 FIND_PACKAGE(embree REQUIRED)
 
diff --git a/tutorials/minimal/CMakeLists.txt b/tutorials/minimal/CMakeLists.txt
index ffa93bf4ed..72bf41891a 100644
--- a/tutorials/minimal/CMakeLists.txt
+++ b/tutorials/minimal/CMakeLists.txt
@@ -2,7 +2,7 @@
 ## SPDX-License-Identifier: Apache-2.0
 
 PROJECT(minimal)
-CMAKE_MINIMUM_REQUIRED(VERSION 3.5)
+CMAKE_MINIMUM_REQUIRED(VERSION 3.10)
 
 IF (NOT EMBREE_PROJECT_COMPILATION)
   FIND_PACKAGE(embree REQUIRED)