# Set a default build type if none was specified
if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
    message(STATUS "Setting build type to 'Release' as none was specified.")
    set(CMAKE_BUILD_TYPE
        Release
        CACHE STRING "Choose the type of build." FORCE
    )
    # Set the possible values of build type for cmake-gui, ccmake
    set_property(
        CACHE CMAKE_BUILD_TYPE
        PROPERTY STRINGS
            "Debug"
            "Release"
            "MinSizeRel"
            "RelWithDebInfo"
    )
endif()

# Generate compile_commands.json to make it easier to work with clang based tools
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

option(ENABLE_IPO "Enable Interprocedural Optimization, aka Link Time Optimization (LTO)" OFF)

if(ENABLE_IPO)
    include(CheckIPOSupported)
    check_ipo_supported(
        RESULT result
        OUTPUT output
    )
    if(result)
        set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
    else()
        message(SEND_ERROR "IPO is not supported: ${output}")
    endif()
endif()
