if (MINGW)
  include_directories(SYSTEM /mingw/include/boost-${BOOST_MAJOR_VERSION}_${BOOST_MINOR_VERSION})
  set(Boost_LIBRARIES
    /mingw64/lib/libboost_system.a
    /mingw64/lib/libboost_atomic.a
    /mingw64/lib/libboost_chrono.a
    /mingw64/lib/libboost_date_time.a
    /mingw64/lib/libboost_filesystem.a
    /mingw64/lib/libboost_random.a
    /mingw64/lib/libboost_regex.a
    /mingw64/lib/libboost_serialization.a
    /mingw64/lib/libboost_thread.a
  )
else()
  set(BOOST_VERSION ${BOOST_MAJOR_VERSION}.${BOOST_MINOR_VERSION}.${BOOST_PATCH_VERSION})
  set(BOOST_VERSION2 ${BOOST_MAJOR_VERSION}_${BOOST_MINOR_VERSION}_${BOOST_PATCH_VERSION})

  set(BOOST_PROJECT_NAME boost_${BOOST_VERSION})
  set(BOOST_BUILD_ROOT ${EXTERNAL_BUILD_ROOT}/builds/${BOOST_PROJECT_NAME})

  set(BOOST_ADDRESS_MODEL 64)

  set(BOOST_DOWNLOAD_URL https://boostorg.jfrog.io/artifactory/main/release/${BOOST_VERSION}/source/boost_${BOOST_VERSION2}.tar.gz)

  if (IS_CLANG_COMPILER)
    set(BOOST_TOOLSET --with-toolset=clang)
  else ()
    set(BOOST_OPENSSL_DIR "--openssldir=${EXTERNAL_BUILD_ROOT}")
  endif()

  if (IS_ARM64)
    set (BOOST_ARCH arm)
  else()
    set (BOOST_ARCH x86)
  endif()

  set (BOOST_COMMON_ARGS 
      ${BOOST_OPENSSL_DIR}
      --prefix=${EXTERNAL_BUILD_ROOT}
      address-model=${BOOST_ADDRESS_MODEL}
      architecture=${BOOST_ARCH}
      cxxflags=-std=c++${CMAKE_CXX_STANDARD}
      cxxstd=${CMAKE_CXX_STANDARD}
      define=BOOST_ASIO_HAS_STD_STRING_VIEW
      define=BOOST_SYSTEM_NO_DEPRECATED
      link=static
      linkflags=-std=c++${CMAKE_CXX_STANDARD}
      threading=multi
      variant=${CMAKE_BUILD_TYPE_LOWER}
      -sZLIB_BINARY=zlibstatic${DEBUG_EXTRA}
      -sZLIB_LIBPATH="${EXTERNAL_BUILD_ROOT}/lib"
      -sZLIB_INCLUDE="${EXTERNAL_BUILD_ROOT}/include"
  )

  ExternalProject_Add(boost_project
    DOWNLOAD_NO_PROGRESS 1
    URL ${BOOST_DOWNLOAD_URL}
    PREFIX ${BOOST_BUILD_ROOT}
    BUILD_IN_SOURCE 1
    CONFIGURE_COMMAND
     cp -f ${CMAKE_CURRENT_SOURCE_DIR}/3rd_party/user-config.jam . &&
     ./bootstrap.sh
      ${BOOST_TOOLSET}
      ${BOOST_TARGET_OS}
      --with-libraries=atomic,chrono,date_time,filesystem,random,regex,serialization,system,thread
    BUILD_COMMAND
      ./b2
      ${BOOST_COMMON_ARGS}
      ${BOOST_TARGET_OS}
    INSTALL_COMMAND
      ./b2
      ${BOOST_COMMON_ARGS}
      ${BOOST_TARGET_OS}
      install
  )

  add_dependencies(boost_project openssl_project)

  add_dependencies(boost_project zlib_project)
  if (CMAKE_HOST_WIN32)
    include_directories(SYSTEM ${EXTERNAL_BUILD_ROOT}/include/boost-${BOOST_MAJOR_VERSION}_${BOOST_MINOR_VERSION})
  endif()

  set(Boost_LIBRARIES
    libboost_system.a
    libboost_atomic.a
    libboost_chrono.a
    libboost_date_time.a
    libboost_filesystem.a
    libboost_random.a
    libboost_regex.a
    libboost_serialization.a
    libboost_thread.a
  )
endif()