Update minimum CMake required version to 4.2

This is done to speed up syncing this build system with the upcoming
CMake 4.2 version in the very near future and avoid all annoyances from
the past versions. Realistically, this build system is at this point in
heavy development and is not used yet, so this is feasible.

Author: petk

.github/workflows/check.yaml

@@ -50,5 +50,5 @@ jobs:
         run: |
           normalizer.cmake -- \
             --set normalize_indent_style=false \
-            --set normalize_cmake_minimum_required=3.29...4.2 \
+            --set normalize_cmake_minimum_required=4.2...4.3 \
             -j

CMakeLists.txt

@@ -55,7 +55,7 @@ See build system documentation for available PHP configuration variables and
 further information.
 #]=============================================================================]
 
-cmake_minimum_required(VERSION 3.29...4.2)
+cmake_minimum_required(VERSION 4.2...4.3)
 
 if(CMAKE_BINARY_DIR PATH_EQUAL CMAKE_CURRENT_LIST_DIR)
   message(
@@ -198,15 +198,7 @@ file(
 
     find_package(Git QUIET)
     if(NOT Git_FOUND)
-      # See: https://gitlab.kitware.com/cmake/cmake/-/merge_requests/10164
-      if(CMAKE_VERSION VERSION_GREATER_EQUAL 4.0)
-        find_package(Patch QUIET)
-      else()
-        find_program(Patch_EXECUTABLE patch)
-        if(Patch_EXECUTABLE)
-          set(Patch_FOUND TRUE)
-        endif()
-      endif()
+      find_package(Patch QUIET)
     endif()
 
     if(NOT Git_FOUND AND NOT Patch_FOUND)

README.md

@@ -1,7 +1,7 @@
 # PHP build system
 
 [![PHP version](https://img.shields.io/badge/PHP-8.3-777BB4?logo=php&labelColor=17181B)](https://www.php.net/)
-[![CMake version](https://img.shields.io/badge/CMake-3.29-064F8C?logo=cmake&labelColor=17181B)](https://cmake.org)
+[![CMake version](https://img.shields.io/badge/CMake-4.2-064F8C?logo=cmake&labelColor=17181B)](https://cmake.org)
 [![C99](https://img.shields.io/badge/standard-C99-A8B9CC?logo=C&labelColor=17181B)](https://www.open-std.org/jtc1/sc22/WG14/www/docs/n1256.pdf)
 
 > [!IMPORTANT]

cmake/CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.29...4.2)
+cmake_minimum_required(VERSION 4.2...4.3)
 
 # Configure CMake behavior.
 include(cmake/CMakeDefaults.cmake)

cmake/cmake/modules/FindBZip2.cmake

@@ -2,11 +2,7 @@
 # FindIconv
 
 This module overrides the upstream CMake `FindIconv` module with few
-customizations:
-
-* Included a customization for Alpine where GNU libiconv headers are located in
-  `/usr/include/gnu-libiconv` (fixed in CMake 3.31):
-  https://gitlab.kitware.com/cmake/cmake/-/merge_requests/9774
+customizations.
 
 * Added adjustment when the iconv library installation path is manually set,
   otherwise Iconv is first searched in the C library.

cmake/cmake/modules/FindIconv.cmake

@@ -11,7 +11,7 @@ Expected variables:
 * COMMENT
 #]=============================================================================]
 
-cmake_minimum_required(VERSION 3.29...4.2)
+cmake_minimum_required(VERSION 4.2...4.3)
 
 if(NOT CMAKE_SCRIPT_MODE_FILE OR NOT PHP_EXECUTABLE OR NOT PHP_COMMAND)
   return()