get_directory_property(parent_directory PARENT_DIRECTORY)
set(is_root_project $<NOT:parent_directory>)

set(USE_STATIC_RUNTIME "${is_root_project}" CACHE BOOL "Link the runtime statically")
set(STRIP_SYMBOL_TABLE "${is_root_project}" CACHE BOOL "Strip symbol tables")

if(is_root_project)
    if(MSVC)
        add_compile_options(/MP /W4)
    elseif(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
        add_compile_options(-Wall -Wextra)
    endif()
endif()

set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)

function(use_static_runtime_msvc target)
    target_compile_options("${target}" PRIVATE
        $<$<CONFIG:Debug>:/MTd>
        $<$<NOT:$<CONFIG:Debug>>:/MT>)
endfunction()

function(use_static_runtime_gcc target)
    get_target_property(target_type "${target}" TYPE)
    if(target_type STREQUAL EXECUTABLE)
        target_link_libraries("${target}" PRIVATE -static)
    endif()
endfunction()

function(use_static_runtime target)
    if(MSVC)
        use_static_runtime_msvc("${target}")
    elseif(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
        use_static_runtime_gcc("${target}")
    else()
        message(WARNING "Unrecognized toolset")
    endif()
endfunction()

function(strip_symbol_table_gcc target)
    target_link_libraries("${target}" PRIVATE
        $<$<OR:$<CONFIG:Release>,$<CONFIG:MinSizeRel>>:-s>)
endfunction()

function(strip_symbol_table target)
    if(MSVC)
    elseif(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
        strip_symbol_table_gcc("${target}")
    else()
        message(WARNING "Unrecognized toolset")
    endif()
endfunction()

macro(add_executable target)
    _add_executable(${ARGV})
    if(TARGET "${target}")
        if(USE_STATIC_RUNTIME)
            use_static_runtime("${target}")
        endif()
        if(STRIP_SYMBOL_TABLE)
            strip_symbol_table("${target}")
        endif()
    endif()
endmacro()

macro(add_library target)
    _add_library(${ARGV})
    if(TARGET "${target}")
        if(USE_STATIC_RUNTIME)
            use_static_runtime("${target}")
        endif()
    endif()
endmacro()