build: minimum required CMake version bumped to 3.25

Resolves #597

CMakeLists.txt

@@ -20,7 +20,7 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-cmake_minimum_required(VERSION 3.23)
+cmake_minimum_required(VERSION 3.25)
 project(mp-units-dev LANGUAGES CXX)
 
 list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")

src/CMakeLists.txt

@@ -20,7 +20,7 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-cmake_minimum_required(VERSION 3.23)
+cmake_minimum_required(VERSION 3.25)
 project(mp-units VERSION 2.3.0 LANGUAGES CXX)
 
 set(projectPrefix MP_UNITS_)

src/cmake/AddMPUnitsModule.cmake

@@ -20,6 +20,8 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
+cmake_minimum_required(VERSION 3.25)
+
 include_guard(GLOBAL)
 
 function(validate_unparsed module prefix)

src/cmake/CheckCXXFeatureSupported.cmake

@@ -59,6 +59,8 @@ For example:
   check_cxx_feature_supported("__cpp_constexpr >= 202211L" STATIC_CONSTEXPR_VARS_IN_CONSTEXPR_FUNCTIONS)
 #]=======================================================================]
 
+cmake_minimum_required(VERSION 3.25)
+
 include_guard(GLOBAL)
 
 macro(CHECK_CXX_FEATURE_SUPPORTED CONDITION VARIABLE)

src/cmake/CheckLibcxxInUse.cmake

@@ -20,7 +20,7 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-cmake_minimum_required(VERSION 3.15)
+cmake_minimum_required(VERSION 3.25)
 
 function(check_libcxx_in_use variable)
     if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")

src/cmake/MPUnitsContracts.cmake

@@ -20,6 +20,8 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
+cmake_minimum_required(VERSION 3.25)
+
 add_library(mp-units-contracts INTERFACE)
 
 if(${projectPrefix}API_CONTRACTS STREQUAL "NONE")

test_package/CMakeLists.txt

@@ -20,7 +20,7 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-cmake_minimum_required(VERSION 3.23)
+cmake_minimum_required(VERSION 3.25)
 project(test_package LANGUAGES CXX)
 
 find_package(mp-units REQUIRED)