PR #1706: Require CMake version 3.16
Imported from GitHub PR https://github.com/abseil/abseil-cpp/pull/1706
Follow Google OSS policy.
Merge 2ba42b9e5a9ac8c9fe0609fd1ac4cad24714727a into af4c589ed6f312372bb02bfaacb62c14598ceb04
Merging this change closes #1706
COPYBARA_INTEGRATE_REVIEW=https://github.com/abseil/abseil-cpp/pull/1706 from gruenich:feature/cmake-3-16 2ba42b9e5a9ac8c9fe0609fd1ac4cad24714727a
PiperOrigin-RevId: 650646746
Change-Id: Ib600608fbc727161c8b8e69cda9a09637188fef8
diff --git a/CMake/Googletest/CMakeLists.txt.in b/CMake/Googletest/CMakeLists.txt.in
index 75691b1..3db4834 100644
--- a/CMake/Googletest/CMakeLists.txt.in
+++ b/CMake/Googletest/CMakeLists.txt.in
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.10)
+cmake_minimum_required(VERSION 3.16)
project(googletest-external NONE)
diff --git a/CMake/README.md b/CMake/README.md
index c7ddee6..808edfe 100644
--- a/CMake/README.md
+++ b/CMake/README.md
@@ -39,7 +39,7 @@
Here is a short CMakeLists.txt example of an application project using Abseil.
```cmake
-cmake_minimum_required(VERSION 3.10)
+cmake_minimum_required(VERSION 3.16)
project(my_app_project)
# Pick the C++ standard to compile with.
@@ -62,7 +62,7 @@
example:
```cmake
-cmake_minimum_required(VERSION 3.10)
+cmake_minimum_required(VERSION 3.16)
project(my_lib_project)
# Leave C++ standard up to the root application, so set it only if this is the
diff --git a/CMake/install_test_project/CMakeLists.txt b/CMake/install_test_project/CMakeLists.txt
index 30c23b2..3229887 100644
--- a/CMake/install_test_project/CMakeLists.txt
+++ b/CMake/install_test_project/CMakeLists.txt
@@ -15,7 +15,7 @@
# A simple CMakeLists.txt for testing cmake installation
-cmake_minimum_required(VERSION 3.10)
+cmake_minimum_required(VERSION 3.16)
project(absl_cmake_testing CXX)
add_executable(simple simple.cc)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index d88283b..650ed70 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -15,43 +15,8 @@
#
# https://github.com/google/oss-policies-info/blob/main/foundational-cxx-support-matrix.md
-# As of 2022-09-06, CMake 3.10 is the minimum supported version.
-cmake_minimum_required(VERSION 3.10)
-
-# Compiler id for Apple Clang is now AppleClang.
-if (POLICY CMP0025)
- cmake_policy(SET CMP0025 NEW)
-endif (POLICY CMP0025)
-
-# if command can use IN_LIST
-if (POLICY CMP0057)
- cmake_policy(SET CMP0057 NEW)
-endif (POLICY CMP0057)
-
-# Project version variables are the empty string if version is unspecified
-if (POLICY CMP0048)
- cmake_policy(SET CMP0048 NEW)
-endif (POLICY CMP0048)
-
-# Honor the GTest_ROOT variable if specified
-if (POLICY CMP0074)
- cmake_policy(SET CMP0074 NEW)
-endif (POLICY CMP0074)
-
-# option() honor variables
-if (POLICY CMP0077)
- cmake_policy(SET CMP0077 NEW)
-endif (POLICY CMP0077)
-
-# Allow the user to specify the MSVC runtime
-if (POLICY CMP0091)
- cmake_policy(SET CMP0091 NEW)
-endif (POLICY CMP0091)
-
-# try_compile() honors the CMAKE_CXX_STANDARD value
-if (POLICY CMP0067)
- cmake_policy(SET CMP0067 NEW)
-endif (POLICY CMP0067)
+# As of 2024-07-01, CMake 3.16 is the minimum supported version.
+cmake_minimum_required(VERSION 3.16)
# Allow the user to specify the CMAKE_MSVC_DEBUG_INFORMATION_FORMAT
if (POLICY CMP0141)
