CMake cleanup and reorganization

Move pre and post project initialization code in the root CMakeLists.txt to separate modules
Small amount of changes merged from #1661

Author: Xottab-DUTY

CMakeLists.txt

@@ -1,307 +1,23 @@
 cmake_minimum_required(VERSION 3.23)
-
 message(STATUS "CMAKE_VERSION: ${CMAKE_VERSION}")
 
-cmake_policy(SET CMP0048 NEW)
-cmake_policy(SET CMP0095 NEW)
-
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 
-include(utils)
-calculate_xray_build_id(XRAY_BUILD_ID)
+include(PreProjectInit)
 
+calculate_xray_build_id(XRAY_BUILD_ID)
 project(OpenXRay
     DESCRIPTION "OpenXRay is an improved version of the X-Ray Engine, \
                 the game engine used in the world-famous S.T.A.L.K.E.R. game series by GSC Game World."
     VERSION 1.6.02.${XRAY_BUILD_ID}
     HOMEPAGE_URL "https://github.com/OpenXRay/xray-16"
     LANGUAGES CXX C
 )
-
 message(STATUS "CMAKE_PROJECT_VERSION: ${CMAKE_PROJECT_VERSION}")
 
-set(CMAKE_CXX_STANDARD 17)
-set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
-
-option(CMAKE_VERBOSE_MAKEFILE "Verbose build output" OFF)
-message(STATUS "CMAKE_VERBOSE_MAKEFILE: ${CMAKE_VERBOSE_MAKEFILE}")
-
-if (CMAKE_VERBOSE_MAKEFILE)
-    set(CMAKE_EXECUTE_PROCESS_COMMAND_ECHO STDOUT)
-endif()
-
-if (CMAKE_VERSION VERSION_EQUAL "3.28.2" AND CMAKE_UNITY_BUILD)
-    # https://gitlab.kitware.com/cmake/cmake/-/issues/25650
-    message(WARNING "In CMake 3.28.2, precompiled headers are broken when Unity build is enabled. This breaks project from compiling. \
-                     Please, update to CMake 3.28.3 or downgrade to 3.28.1.")
-    set(CMAKE_UNITY_BUILD OFF)
-endif()
-
-if (NOT CMAKE_BUILD_TYPE)
-    set(CMAKE_BUILD_TYPE "Release" CACHE STRING "" FORCE)
-endif()
-
-# Redirecting the default installation path /usr/local to /usr no need to use -DCMAKE_INSTALL_PREFIX =/usr
-if (CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
-    set(CMAKE_INSTALL_PREFIX "/usr")
-endif()
-
-include(GNUInstallDirs)
-include(packaging)
-
-set_git_info()
-
-# Output all libraries and executable to one folder
-set(COMPILE_OUTPUT_FOLDER "${CMAKE_SOURCE_DIR}/bin/${CMAKE_SYSTEM_PROCESSOR}/${CMAKE_BUILD_TYPE}")
-set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${COMPILE_OUTPUT_FOLDER}")
-set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${COMPILE_OUTPUT_FOLDER}")
-set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${COMPILE_OUTPUT_FOLDER}")
-set(CMAKE_PDB_OUTPUT_DIRECTORY "${COMPILE_OUTPUT_FOLDER}")
-set(CMAKE_COMPILE_PDB_OUTPUT_DIRECTORY "${COMPILE_OUTPUT_FOLDER}")
-
-if (DISABLE_PORTABLE_MODE)
-    add_compile_definitions(DISABLE_PORTABLE_MODE)
-endif()
-
-set(CMAKE_BUILD_RPATH_USE_ORIGIN TRUE)
-set(CMAKE_MACOSX_RPATH TRUE)
-
-message(STATUS "CMAKE_SYSTEM_PROCESSOR: ${CMAKE_SYSTEM_PROCESSOR}")
-if (CMAKE_SYSTEM_PROCESSOR STREQUAL "aarch64" OR CMAKE_SYSTEM_PROCESSOR STREQUAL "arm64")
-    set(PROJECT_PLATFORM_ARM64 TRUE)
-elseif (CMAKE_SYSTEM_PROCESSOR MATCHES "armv*")
-    set(PROJECT_PLATFORM_ARM TRUE)
-elseif (CMAKE_SYSTEM_PROCESSOR STREQUAL "e2k")
-    set(PROJECT_PLATFORM_E2K TRUE)
-elseif (CMAKE_SYSTEM_PROCESSOR STREQUAL "ppc" OR CMAKE_SYSTEM_PROCESSOR STREQUAL "ppc64le")
-    set(PROJECT_PLATFORM_PPC TRUE)
-endif()
-
-if (CMAKE_BUILD_TYPE STREQUAL "Release" OR CMAKE_BUILD_TYPE STREQUAL "RelWithDebInfo")
-    set(MASTER_GOLD_DEFAULT_VALUE ON)
-else()
-    set(MASTER_GOLD_DEFAULT_VALUE OFF)
-endif()
-message(STATUS "CMAKE_BUILD_TYPE: ${CMAKE_BUILD_TYPE}")
-
-option(MASTER_GOLD "Build with MASTER_GOLD" ${MASTER_GOLD_DEFAULT_VALUE})
-if (MASTER_GOLD)
-    add_compile_definitions(MASTER_GOLD)
-endif()
-message(STATUS "MASTER_GOLD: ${MASTER_GOLD}")
-
-option(STATIC_BUILD "Use static build" ${MASTER_GOLD})
-if (STATIC_BUILD)
-    # XXX: Uncomment only after build with XRAY_STATIC_BUILD is fixed
-    #add_compile_definitions(XRAY_STATIC_BUILD)
-endif()
-message(STATUS "STATIC_BUILD: ${STATIC_BUILD}")
-
-option(CMAKE_UNITY_BUILD "Use unity build" OFF)
-message(STATUS "CMAKE_UNITY_BUILD: ${CMAKE_UNITY_BUILD}")
-
-find_program(CCACHE_FOUND ccache)
-if (CCACHE_FOUND)
-    set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
-    set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ccache)
-    set(ENV{CCACHE_SLOPPINESS} pch_defines,time_macros)
-endif ()
-
-if (CMAKE_CXX_COMPILER_ID MATCHES "GNU")
-    if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 8.0 AND NOT PROJECT_PLATFORM_E2K)
-        message(FATAL_ERROR "Building with a gcc version less than 8.0 is not supported.")
-    elseif (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 7.0 AND PROJECT_PLATFORM_E2K)
-        message(FATAL_ERROR "Building with a MCST lcc version less than 1.25 is not supported.")
-    endif()
-elseif (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
-    # XXX: Remove -fdelayed-template-parsing
-    add_compile_options(
-        -fdelayed-template-parsing
-        -Wno-unused-command-line-argument
-        -Wno-inconsistent-missing-override
-    )
-endif()
-
-if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND NOT XRAY_USE_DEFAULT_CXX_LIB)
-    if (NOT XRAY_CXX_LIB)
-        include(CheckCXXCompilerFlag)
-        CHECK_CXX_COMPILER_FLAG("-stdlib=libc++" LIBCPP_AVAILABLE)
-        CHECK_CXX_COMPILER_FLAG("-stdlib=libstdc++" LIBSTDCPP_AVAILABLE)
-
-        if (LIBCPP_AVAILABLE)
-            set(XRAY_CXX_LIB "libc++" CACHE STRING "" FORCE)
-        elseif (LIBSTDCPP_AVAILABLE)
-            set(XRAY_CXX_LIB "libstdc++" CACHE STRING "" FORCE)
-        else()
-            message("Neither libstdc++ nor libc++ are available. Hopefully, system has another custom stdlib?")
-        endif()
-    endif()
-
-    if (XRAY_CXX_LIB STREQUAL "libstdc++")
-        add_compile_options(-stdlib=libstdc++)
-    elseif (XRAY_CXX_LIB STREQUAL "libc++")
-        add_compile_options(-stdlib=libc++)
-        if (CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
-            add_compile_options(-lcxxrt)
-        else()
-            add_compile_options(-lc++abi)
-        endif()
-    endif()
-endif()
-
-add_compile_options(-Wno-attributes)
-if (APPLE)
-    add_compile_options(-Wl,-undefined,error)
-else()
-    add_compile_options(-Wl,--no-undefined)
-endif()
-
-# TODO test
-option(USE_ADDRESS_SANITIZER "Use AddressSanitizer" OFF)
-
-if (USE_ADDRESS_SANITIZER)
-    add_compile_options(
-        -fsanitize=address
-        -fsanitize=leak
-        -fsanitize=undefined
-        -fno-omit-frame-pointer
-        -fno-optimize-sibling-calls
-        -fno-sanitize=vptr
-    )
-
-    add_link_options(
-        $<$<CXX_COMPILER_ID:Clang>:-shared-libasan>
-        -fsanitize=address
-        -fsanitize=leak
-        -fsanitize=undefined
-    )
-endif()
-
-message(STATUS "USE_ADDRESS_SANITIZER: ${USE_ADDRESS_SANITIZER}")
-
-option(USE_LTO "Use Link Time Optimization" ${MASTER_GOLD})
-if (USE_LTO)
-    include(CheckIPOSupported)
-    check_ipo_supported(RESULT LTO_SUPPORTED)
-
-    if (LTO_SUPPORTED)
-        # With clang cmake only enables '-flto=thin' but we want full LTO
-        if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
-            add_compile_options(-flto=full)
-        else()
-            set(CMAKE_INTERPROCEDURAL_OPTIMIZATION ON)
-        endif()
-    endif()
-endif()
-
-message(STATUS "USE_LTO: ${USE_LTO}")
-
-if (PROJECT_PLATFORM_ARM)
-    add_compile_options(-mfpu=neon)
-elseif (PROJECT_PLATFORM_ARM64)
-    #add_compile_options()
-elseif (PROJECT_PLATFORM_E2K)
-    add_compile_options(-Wno-unknown-pragmas)
-elseif (PROJECT_PLATFORM_PPC)
-    add_compile_options(
-        -maltivec
-        -mabi=altivec
-    )
-    add_compile_definitions(NO_WARN_X86_INTRINSICS)
-else()
-    add_compile_options(
-        -mfpmath=sse
-        -msse3
-    )
-endif()
-
-if (XRAY_LINKER)
-    add_link_options(-fuse-ld=${XRAY_LINKER})
-endif()
-
-if (CMAKE_BUILD_TYPE STREQUAL "Debug")
-    add_compile_definitions(
-        DEBUG
-        MIXED
-    )
-    add_compile_options(-Og)
-endif()
-
-add_compile_definitions(
-    _MT
-    _CPPUNWIND
-)
-
-if (NOT WIN32)
-    find_package(SDL2 2.0.18 REQUIRED)
-    # Fix to support older SDL2
-    # https://github.com/OpenXRay/xray-16/issues/1595
-    if (NOT TARGET SDL2::SDL2 AND DEFINED SDL2_LIBRARIES)
-        add_library(SDL2::SDL2 UNKNOWN IMPORTED)
-        set_target_properties(
-            SDL2::SDL2 PROPERTIES
-            IMPORTED_LOCATION "${SDL2_LIBRARIES}"
-            INTERFACE_INCLUDE_DIRECTORIES "${SDL2_INCLUDE_DIRS}"
-        )
-    endif()
-    find_package(OpenAL REQUIRED)
-    find_package(JPEG)
-    find_package(Ogg REQUIRED)
-    find_package(Vorbis REQUIRED)
-    find_package(Theora REQUIRED)
-    find_package(LZO REQUIRED)
-    find_package(mimalloc NAMES mimalloc2 mimalloc2.0 mimalloc)
-endif()
-
-# Memory allocator option
-if (mimalloc_FOUND)
-    set(MEMORY_ALLOCATOR "mimalloc" CACHE STRING "Use specific memory allocator (mimalloc/standard)")
-else()
-    set(MEMORY_ALLOCATOR "standard" CACHE STRING "Use specific memory allocator (mimalloc/standard)")
-endif()
-set_property(CACHE MEMORY_ALLOCATOR PROPERTY STRINGS "mimalloc" "standard")
-
-if (MEMORY_ALLOCATOR STREQUAL "mimalloc" AND NOT mimalloc_FOUND)
-    message(FATAL_ERROR "mimalloc allocator requested but not found. Please, install mimalloc package or select standard allocator.")
-endif()
-
-message("Using ${MEMORY_ALLOCATOR} memory allocator")
-
-option(XRAY_USE_LUAJIT "Use LuaJIT" ON)
+include(PostProjectInit)
 
 add_subdirectory(Externals)
-
-add_compile_options(
-    -Wall
-    #-Werror
-    -Wextra
-    #-pedantic
-    -Wno-unknown-pragmas
-    -Wno-strict-aliasing
-    -Wno-parentheses
-    -Wno-unused-label
-    -Wno-unused-parameter
-    -Wno-switch
-    #-Wno-padded
-    #-Wno-c++98-compat
-    #-Wno-c++98-compat-pedantic
-    #-Wno-c++11-compat
-    #-Wno-c++11-compat-pedantic
-    #-Wno-c++14-compat
-    #-Wno-c++14-compat-pedantic
-    #-Wno-newline-eof
-    $<$<CXX_COMPILER_ID:GNU>:$<$<COMPILE_LANGUAGE:CXX>:-Wno-class-memaccess>>
-    $<$<CXX_COMPILER_ID:GNU>:$<$<COMPILE_LANGUAGE:CXX>:-Wno-interference-size>>
-)
-
 add_subdirectory(src)
 add_subdirectory(res)
 add_subdirectory(misc)
-
-get_property(LIB64 GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS)
-
-if ("${LIB64}" STREQUAL "TRUE")
-    set(LIBSUFFIX 64)
-else()
-    set(LIBSUFFIX "")
-endif()