function(boost_modular_build)
    cmake_parse_arguments(_bm "" "SOURCE_PATH;REQUIREMENTS" "OPTIONS" ${ARGN})

    if(NOT DEFINED _bm_SOURCE_PATH)
        message(FATAL_ERROR "SOURCE_PATH is a required argument to boost_modular_build.")
    endif()

    # Todo: this serves too similar a purpose as vcpkg_find_acquire_program()
    if(VCPKG_TARGET_ARCHITECTURE STREQUAL "x64" OR VCPKG_TARGET_ARCHITECTURE STREQUAL "x86")
        set(BOOST_BUILD_PATH "${CURRENT_INSTALLED_DIR}/tools/boost-build")
    else()
        get_filename_component(BOOST_BUILD_PATH "${CURRENT_INSTALLED_DIR}/../x86-windows/tools/boost-build" ABSOLUTE)
    endif()

    if(NOT EXISTS "${BOOST_BUILD_PATH}")
        message(FATAL_ERROR "The x86 boost-build tools must be installed to build for non-x86/x64 platforms. Please run `vcpkg install boost-build:x86-windows`.")
    endif()

    if(VCPKG_CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")
        list(APPEND _bm_OPTIONS windows-api=store)
    endif()

    set(_bm_DIR ${CURRENT_INSTALLED_DIR}/share/boost-build)

    if(EXISTS "${_bm_SOURCE_PATH}/Jamfile.v2")
        file(REMOVE_RECURSE "${_bm_SOURCE_PATH}/Jamfile.v2")
    endif()

    set(REQUIREMENTS ${_bm_REQUIREMENTS})

    configure_file(${_bm_DIR}/Jamroot.jam ${_bm_SOURCE_PATH}/Jamroot.jam @ONLY)

    # boost thread superfluously builds has_atomic_flag_lockfree on windows.
    if(EXISTS "${_bm_SOURCE_PATH}/build/Jamfile.v2")
        file(READ ${_bm_SOURCE_PATH}/build/Jamfile.v2 _contents)
        string(REPLACE
            "\n\nexe has_atomic_flag_lockfree"
            "\n\nexplicit has_atomic_flag_lockfree ;\nexe has_atomic_flag_lockfree"
            _contents
            "${_contents}"
        )
        string(REPLACE "\nimport ../../config/checks/config : requires ;" "\n# import ../../config/checks/config : requires ;" _contents "${_contents}")
        string(REGEX REPLACE
            "\.\./\.\./([^/ ]+)/build//(boost_[^/ ]+)"
            "/boost/\\1//\\2"
            _contents
            "${_contents}"
        )
        string(REGEX REPLACE " /boost//([^/ ]+)" " /boost/\\1//boost_\\1" _contents "${_contents}")
        file(WRITE ${_bm_SOURCE_PATH}/build/Jamfile.v2 "${_contents}")
    endif()

    if(EXISTS "${_bm_SOURCE_PATH}/build/log-architecture.jam")
        file(READ ${_bm_SOURCE_PATH}/build/log-architecture.jam _contents)
        string(REPLACE
            "\nproject.load [ path.join [ path.make $(here:D) ] ../../config/checks/architecture ] ;"
            "\n# project.load [ path.join [ path.make $(here:D) ] ../../config/checks/architecture ] ;"
            _contents "${_contents}")
        file(WRITE ${_bm_SOURCE_PATH}/build/log-architecture.jam "${_contents}")
    endif()

    #####################
    # Cleanup previous builds
    ######################
    file(REMOVE_RECURSE ${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel)
    if(EXISTS ${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel)
        # It is possible for a file in this folder to be locked due to antivirus or vctip
        execute_process(COMMAND ${CMAKE_COMMAND} -E sleep 1)
        file(REMOVE_RECURSE ${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel)
        if(EXISTS ${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel)
            message(FATAL_ERROR "Unable to remove directory: ${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel\n  Files are likely in use.")
        endif()
    endif()

    file(REMOVE_RECURSE ${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg)
    if(EXISTS ${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg)
        # It is possible for a file in this folder to be locked due to antivirus or vctip
        execute_process(COMMAND ${CMAKE_COMMAND} -E sleep 1)
        file(REMOVE_RECURSE ${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg)
        if(EXISTS ${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg)
            message(FATAL_ERROR "Unable to remove directory: ${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg\n  Files are likely in use.")
        endif()
    endif()

    if(EXISTS ${CURRENT_PACKAGES_DIR}/debug)
        message(FATAL_ERROR "Error: directory exists: ${CURRENT_PACKAGES_DIR}/debug\n  The previous package was not fully cleared. This is an internal error.")
    endif()
    file(MAKE_DIRECTORY
        ${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg
        ${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel
    )

    ######################
    # Generate configuration
    ######################
    list(APPEND _bm_OPTIONS
        -j$ENV{NUMBER_OF_PROCESSORS}
        --debug-configuration
        --debug-building
        --debug-generators
        --disable-icu
        --ignore-site-config
        --hash
        -q
        -sZLIB_INCLUDE="${CURRENT_INSTALLED_DIR}\\include"
        -sBZIP2_INCLUDE="${CURRENT_INSTALLED_DIR}\\include"
        threadapi=win32
        threading=multi
    )
    set(_bm_OPTIONS_DBG
         -sZLIB_BINARY=zlibd
         -sZLIB_LIBPATH="${CURRENT_INSTALLED_DIR}\\debug\\lib"
         -sBZIP2_BINARY=bz2d
         -sBZIP2_LIBPATH="${CURRENT_INSTALLED_DIR}\\debug\\lib"
    )
 
    set(_bm_OPTIONS_REL
         -sZLIB_BINARY=zlib
         -sZLIB_LIBPATH="${CURRENT_INSTALLED_DIR}\\lib"
         -sBZIP2_BINARY=bz2
         -sBZIP2_LIBPATH="${CURRENT_INSTALLED_DIR}\\lib"
    )


    # Add build type specific options
    if(VCPKG_CRT_LINKAGE STREQUAL "dynamic")
        list(APPEND _bm_OPTIONS runtime-link=shared)
    else()
        list(APPEND _bm_OPTIONS runtime-link=static)
    endif()

    if (VCPKG_LIBRARY_LINKAGE STREQUAL "dynamic")
        list(APPEND _bm_OPTIONS link=shared)
    else()
        list(APPEND _bm_OPTIONS link=static)
    endif()

    if(VCPKG_TARGET_ARCHITECTURE MATCHES "x64")
        list(APPEND _bm_OPTIONS address-model=64 architecture=x86)
    elseif(VCPKG_TARGET_ARCHITECTURE STREQUAL "arm")
        list(APPEND _bm_OPTIONS address-model=32 architecture=arm)
    else()
        list(APPEND _bm_OPTIONS address-model=32 architecture=x86)
    endif()

    file(TO_CMAKE_PATH "${_bm_DIR}/nothing.bat" NOTHING_BAT)
    set(TOOLSET_OPTIONS " <cxxflags>/EHsc <compileflags>-Zm800 <compileflags>-nologo")
    if(VCPKG_CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")
        if(VCPKG_PLATFORM_TOOLSET MATCHES "v141")
            find_path(PATH_TO_CL cl.exe)
            find_path(PLATFORM_WINMD_DIR platform.winmd PATHS "${PATH_TO_CL}/../../../lib/x86/store/references" NO_DEFAULT_PATH)
            if(PLATFORM_WINMD_DIR MATCHES "NOTFOUND")
                message(FATAL_ERROR "Could not find `platform.winmd` in VS2017. Do you have the Universal Windows Platform development workload installed?")
            endif()
        else()
            find_path(PLATFORM_WINMD_DIR platform.winmd PATHS "$ENV{VS140COMNTOOLS}/../../VC/LIB/store/references")
            if(PLATFORM_WINMD_DIR MATCHES "NOTFOUND")
                message(FATAL_ERROR "Could not find `platform.winmd` in VS2015.")
            endif()
        endif()
        file(TO_NATIVE_PATH "${PLATFORM_WINMD_DIR}" PLATFORM_WINMD_DIR)
        string(REPLACE "\\" "\\\\" PLATFORM_WINMD_DIR ${PLATFORM_WINMD_DIR}) # escape backslashes

        set(TOOLSET_OPTIONS "${TOOLSET_OPTIONS} <cflags>-Zl <compileflags>\"/AI\"${PLATFORM_WINMD_DIR}\"\" <linkflags>WindowsApp.lib <cxxflags>/ZW <compileflags>-DVirtualAlloc=VirtualAllocFromApp <compileflags>-D_WIN32_WINNT=0x0A00")
    else()
        set(TOOLSET_OPTIONS "${TOOLSET_OPTIONS} <compileflags>-D_WIN32_WINNT=0x0602")
    endif()

    configure_file(${_bm_DIR}/user-config.jam ${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg/user-config.jam @ONLY)
    configure_file(${_bm_DIR}/user-config.jam ${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel/user-config.jam @ONLY)

    if(VCPKG_PLATFORM_TOOLSET MATCHES "v141")
        list(APPEND _bm_OPTIONS toolset=msvc-14.1)
    elseif(VCPKG_PLATFORM_TOOLSET MATCHES "v140")
        list(APPEND _bm_OPTIONS toolset=msvc-14.0)
    else()
        message(FATAL_ERROR "Unsupported value for VCPKG_PLATFORM_TOOLSET: '${VCPKG_PLATFORM_TOOLSET}'")
    endif()

    ######################
    # Perform build + Package
    ######################
    set(B2_EXE "${BOOST_BUILD_PATH}/b2.exe")

    if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "release")
        message(STATUS "Building ${TARGET_TRIPLET}-rel")
        set(ENV{BOOST_BUILD_PATH} "${BOOST_BUILD_PATH}")
        vcpkg_execute_required_process(
            COMMAND "${B2_EXE}"
                --stagedir=${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel/stage
                --build-dir=${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel
                --user-config=${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel/user-config.jam
                ${_bm_OPTIONS}
                ${_bm_OPTIONS_REL}
                variant=release
                debug-symbols=on
            WORKING_DIRECTORY ${_bm_SOURCE_PATH}
            LOGNAME build-${TARGET_TRIPLET}-rel
        )
        message(STATUS "Building ${TARGET_TRIPLET}-rel done")
    endif()

    if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "debug")
        message(STATUS "Building ${TARGET_TRIPLET}-dbg")
        set(ENV{BOOST_BUILD_PATH} "${BOOST_BUILD_PATH}")
        vcpkg_execute_required_process(
            COMMAND "${B2_EXE}"
                --stagedir=${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg/stage
                --build-dir=${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg
                --user-config=${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg/user-config.jam
                ${_bm_OPTIONS}
                ${_bm_OPTIONS_DBG}
                variant=debug
            WORKING_DIRECTORY ${_bm_SOURCE_PATH}
            LOGNAME build-${TARGET_TRIPLET}-dbg
        )
        message(STATUS "Building ${TARGET_TRIPLET}-dbg done")
    endif()

    if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "release")
        message(STATUS "Packaging ${TARGET_TRIPLET}-rel")
        file(GLOB REL_LIBS ${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel/boost/build/*/*.lib)
        file(COPY ${REL_LIBS}
            DESTINATION ${CURRENT_PACKAGES_DIR}/lib
            FILES_MATCHING PATTERN "*.lib")
        if (VCPKG_LIBRARY_LINKAGE STREQUAL dynamic)
            file(GLOB REL_DLLS ${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel/boost/build/*/*.dll)
            file(COPY ${REL_DLLS}
                DESTINATION ${CURRENT_PACKAGES_DIR}/bin
                FILES_MATCHING PATTERN "*.dll")
        endif()
        message(STATUS "Packaging ${TARGET_TRIPLET}-rel done")
    endif()

    if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "debug")
        message(STATUS "Packaging ${TARGET_TRIPLET}-dbg")
        file(GLOB DBG_LIBS ${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg/boost/build/*/*.lib)
        file(COPY ${DBG_LIBS}
            DESTINATION ${CURRENT_PACKAGES_DIR}/debug/lib
            FILES_MATCHING PATTERN "*.lib")
        if (VCPKG_LIBRARY_LINKAGE STREQUAL dynamic)
            file(GLOB DBG_DLLS ${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg/boost/build/*/*.dll)
            file(COPY ${DBG_DLLS}
                DESTINATION ${CURRENT_PACKAGES_DIR}/debug/bin
                FILES_MATCHING PATTERN "*.dll")
        endif()
        message(STATUS "Packaging ${TARGET_TRIPLET}-dbg done")
    endif()

    file(GLOB INSTALLED_LIBS ${CURRENT_PACKAGES_DIR}/debug/lib/*.lib ${CURRENT_PACKAGES_DIR}/lib/*.lib)
    foreach(LIB ${INSTALLED_LIBS})
        get_filename_component(OLD_FILENAME ${LIB} NAME)
        get_filename_component(DIRECTORY_OF_LIB_FILE ${LIB} DIRECTORY)
        string(REPLACE "libboost_" "boost_" NEW_FILENAME ${OLD_FILENAME})
        string(REPLACE "-s-" "-" NEW_FILENAME ${NEW_FILENAME}) # For Release libs
        string(REPLACE "-vc141-" "-vc140-" NEW_FILENAME ${NEW_FILENAME}) # To merge VS2017 and VS2015 binaries
        string(REPLACE "-sgd-" "-gd-" NEW_FILENAME ${NEW_FILENAME}) # For Debug libs
        string(REPLACE "-sgyd-" "-gyd-" NEW_FILENAME ${NEW_FILENAME}) # For Debug libs
        string(REPLACE "-x32-" "-" NEW_FILENAME ${NEW_FILENAME}) # To enable CMake 3.10 and earlier to locate the binaries
        string(REPLACE "-x64-" "-" NEW_FILENAME ${NEW_FILENAME}) # To enable CMake 3.10 and earlier to locate the binaries
        string(REPLACE "-a32-" "-" NEW_FILENAME ${NEW_FILENAME}) # To enable CMake 3.10 and earlier to locate the binaries
        string(REPLACE "-a64-" "-" NEW_FILENAME ${NEW_FILENAME}) # To enable CMake 3.10 and earlier to locate the binaries
        string(REPLACE "-1_66" "" NEW_FILENAME ${NEW_FILENAME}) # To enable CMake > 3.10 to locate the binaries
        string(REPLACE "_python3-" "_python-" NEW_FILENAME ${NEW_FILENAME})
        if("${DIRECTORY_OF_LIB_FILE}/${NEW_FILENAME}" STREQUAL "${DIRECTORY_OF_LIB_FILE}/${OLD_FILENAME}")
            # nothing to do
        elseif(EXISTS ${DIRECTORY_OF_LIB_FILE}/${NEW_FILENAME})
            file(REMOVE ${DIRECTORY_OF_LIB_FILE}/${OLD_FILENAME})
        else()
            file(RENAME ${DIRECTORY_OF_LIB_FILE}/${OLD_FILENAME} ${DIRECTORY_OF_LIB_FILE}/${NEW_FILENAME})
        endif()
    endforeach()
endfunction()