CMakeLists.txt

cmake_minimum_required(VERSION 3.16.0)

project(FSEG)

set(CMAKE_CXX_STANDARD 17)

cmake_policy(SET CMP0095 NEW)
# cmake_policy(SET CMP0068 NEW)
include(CMakePrintHelpers)

if (MSVC)
    # Tell cmake we want it to automate generating an export stub for the dll
    SET(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)

    # /Zc:preprocessor enables a token-based preprocessor that conforms to C99 and C++11 and later standards
    # /Zc:preprocessor option is available starting with VS2019 version 16.5
    # (according to https://docs.microsoft.com/en-us/cpp/build/reference/zc-preprocessor)
    # That version is equivalent to _MSC_VER==1925
    # (according to https://docs.microsoft.com/en-us/cpp/preprocessor/predefined-macros)
    # CMake's ${MSVC_VERSION} is equivalent to _MSC_VER
    # (according to https://cmake.org/cmake/help/latest/variable/MSVC_VERSION.html#variable:MSVC_VERSION)
    if ((MSVC_VERSION GREATER_EQUAL 1925) AND (MSVC_VERSION LESS_EQUAL 1930))
        cmake_print_variables(MSVC_VERSION)
        cmake_print_variables(CMAKE_VERSION)
        cmake_print_variables(CMAKE_SYSTEM_VERSION)

        # add_compile_options(/Zc:preprocessor)     # unnecessary for windows-2022 MSVC 14.32

        # add_compile_options(/wd5105)  ## which failed on Github Actions Runner windows-2019
    else()
        message(FATAL_ERROR "MSVC compiler before VS2019 Update5 are not supported")
    endif()

else()
    # link math.h
    LINK_LIBRARIES(m)
endif()

find_program(CCACHE_FOUND ccache)
if(CCACHE_FOUND)
    message(STATUS "Set up ccache ...")
    set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
    set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ccache) # Less useful to do it for linking, see edit2
endif(CCACHE_FOUND)

# Fetch third-party libraries
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
set(FETCHCONTENT_UPDATES_DISCONNECTED ON CACHE BOOL "Disable updating fetched content")
include(HHinnatDate)
include(GitPybind11)


add_subdirectory(src)

# enable_testing()
# add_subdirectory(tests)