IF (NOT __XCODE_RESOURCE_NAME)
    MESSAGE(FATAL_ERROR "Unspecified __XCODE_RESOURCE_NAME variable")
ENDIF()
IF (NOT __XCODE_TOOLCHAIN_VERSION)
    MESSAGE(FATAL_ERROR "Unspecified Xcode toolchain version for" $XCODE_RESOURCE_NAME)
ELSEIF (__XCODE_TOOLCHAIN_VERSION == "10.2.1")
    DECLARE_EXTERNAL_RESOURCE(${__XCODE_RESOURCE_NAME} sbr:971159365)
ELSEIF (__XCODE_TOOLCHAIN_VERSION == "9.2")
    DECLARE_EXTERNAL_RESOURCE(${__XCODE_RESOURCE_NAME} sbr:498971125)
ELSEIF (__XCODE_TOOLCHAIN_VERSION == "8.3.3")
    DECLARE_EXTERNAL_RESOURCE(${__XCODE_RESOURCE_NAME} sbr:701155000)
ELSEIF (__XCODE_TOOLCHAIN_VERSION == "8.2.1")
    DECLARE_EXTERNAL_RESOURCE(${__XCODE_RESOURCE_NAME} sbr:500014407)
ELSE()
    MESSAGE(FATAL_ERROR "Unsupported Xcode toolchain version" $__XCODE_TOOLCHAIN_VERSION "for" $XCODE_RESOURCE_NAME)
ENDIF()