cmake_minimum_required(VERSION 2.8)
enable_testing()
project(toml11)

include(CheckCXXCompilerFlag)
if("${CMAKE_VERSION}" VERSION_GREATER 3.1)
    set(CMAKE_CXX_EXTENSIONS OFF)
    if(NOT DEFINED CMAKE_CXX_STANDARD)
        set(CMAKE_CXX_STANDARD 11)
    endif()
    set(CXX_STANDARD_REQUIRED ON)
else()
    # Manually check for C++11 compiler flag.
    CHECK_CXX_COMPILER_FLAG("-std=c++11" COMPILER_SUPPORTS_CXX11)
    CHECK_CXX_COMPILER_FLAG("-std=c++0x" COMPILER_SUPPORTS_CXX0X)
    CHECK_CXX_COMPILER_FLAG("-std=gnu++11" COMPILER_SUPPORTS_GNU11)
    CHECK_CXX_COMPILER_FLAG("-std=gnu++0x" COMPILER_SUPPORTS_GNU0X)
    if(COMPILER_SUPPORTS_CXX11)
        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
    elseif(COMPILER_SUPPORTS_CXXOX)
        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
    elseif(COMPILER_SUPPORTS_GNU11)
        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++11")
    elseif(COMPILER_SUPPORTS_GNU0X)
        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++0x")
    else()
        if(MSVC)
            if(MSVC_VERSION LESS 1900)
                message(SEND_ERROR "MSVC < 14.0 is not supported. Please update your compiler or use mingw")
            endif()
        else()
            message(SEND_ERROR "The ${CMAKE_CXX_COMPILER} compiler lacks C++11 support. Use another compiler.")
        endif()
    endif()
endif()

include_directories(${PROJECT_SOURCE_DIR})
add_subdirectory(tests)