if (USE_INTERNAL_POCO_LIBRARY)
    # Poco::XML (expat)

    set (SRCS_EXPAT
        ${LIBRARY_DIR}/XML/src/xmlrole.c
        ${LIBRARY_DIR}/XML/src/xmltok_impl.c
        ${LIBRARY_DIR}/XML/src/xmltok_ns.c
        ${LIBRARY_DIR}/XML/src/xmltok.c
    )

    add_library (_poco_xml_expat ${SRCS_EXPAT})
    add_library (Poco::XML::Expat ALIAS _poco_xml_expat)

    target_include_directories (_poco_xml_expat PUBLIC ${LIBRARY_DIR}/XML/include)

    # Poco::XML

    set (SRCS
        ${LIBRARY_DIR}/XML/src/AbstractContainerNode.cpp
        ${LIBRARY_DIR}/XML/src/AbstractNode.cpp
        ${LIBRARY_DIR}/XML/src/Attr.cpp
        ${LIBRARY_DIR}/XML/src/Attributes.cpp
        ${LIBRARY_DIR}/XML/src/AttributesImpl.cpp
        ${LIBRARY_DIR}/XML/src/AttrMap.cpp
        ${LIBRARY_DIR}/XML/src/CDATASection.cpp
        ${LIBRARY_DIR}/XML/src/CharacterData.cpp
        ${LIBRARY_DIR}/XML/src/ChildNodesList.cpp
        ${LIBRARY_DIR}/XML/src/Comment.cpp
        ${LIBRARY_DIR}/XML/src/ContentHandler.cpp
        ${LIBRARY_DIR}/XML/src/DeclHandler.cpp
        ${LIBRARY_DIR}/XML/src/DefaultHandler.cpp
        ${LIBRARY_DIR}/XML/src/Document.cpp
        ${LIBRARY_DIR}/XML/src/DocumentEvent.cpp
        ${LIBRARY_DIR}/XML/src/DocumentFragment.cpp
        ${LIBRARY_DIR}/XML/src/DocumentType.cpp
        ${LIBRARY_DIR}/XML/src/DOMBuilder.cpp
        ${LIBRARY_DIR}/XML/src/DOMException.cpp
        ${LIBRARY_DIR}/XML/src/DOMImplementation.cpp
        ${LIBRARY_DIR}/XML/src/DOMObject.cpp
        ${LIBRARY_DIR}/XML/src/DOMParser.cpp
        ${LIBRARY_DIR}/XML/src/DOMSerializer.cpp
        ${LIBRARY_DIR}/XML/src/DOMWriter.cpp
        ${LIBRARY_DIR}/XML/src/DTDHandler.cpp
        ${LIBRARY_DIR}/XML/src/DTDMap.cpp
        ${LIBRARY_DIR}/XML/src/Element.cpp
        ${LIBRARY_DIR}/XML/src/ElementsByTagNameList.cpp
        ${LIBRARY_DIR}/XML/src/Entity.cpp
        ${LIBRARY_DIR}/XML/src/EntityReference.cpp
        ${LIBRARY_DIR}/XML/src/EntityResolver.cpp
        ${LIBRARY_DIR}/XML/src/EntityResolverImpl.cpp
        ${LIBRARY_DIR}/XML/src/ErrorHandler.cpp
        ${LIBRARY_DIR}/XML/src/Event.cpp
        ${LIBRARY_DIR}/XML/src/EventDispatcher.cpp
        ${LIBRARY_DIR}/XML/src/EventException.cpp
        ${LIBRARY_DIR}/XML/src/EventListener.cpp
        ${LIBRARY_DIR}/XML/src/EventTarget.cpp
        ${LIBRARY_DIR}/XML/src/InputSource.cpp
        ${LIBRARY_DIR}/XML/src/LexicalHandler.cpp
        ${LIBRARY_DIR}/XML/src/Locator.cpp
        ${LIBRARY_DIR}/XML/src/LocatorImpl.cpp
        ${LIBRARY_DIR}/XML/src/MutationEvent.cpp
        ${LIBRARY_DIR}/XML/src/Name.cpp
        ${LIBRARY_DIR}/XML/src/NamedNodeMap.cpp
        ${LIBRARY_DIR}/XML/src/NamePool.cpp
        ${LIBRARY_DIR}/XML/src/NamespaceStrategy.cpp
        ${LIBRARY_DIR}/XML/src/NamespaceSupport.cpp
        ${LIBRARY_DIR}/XML/src/Node.cpp
        ${LIBRARY_DIR}/XML/src/NodeAppender.cpp
        ${LIBRARY_DIR}/XML/src/NodeFilter.cpp
        ${LIBRARY_DIR}/XML/src/NodeIterator.cpp
        ${LIBRARY_DIR}/XML/src/NodeList.cpp
        ${LIBRARY_DIR}/XML/src/Notation.cpp
        ${LIBRARY_DIR}/XML/src/ParserEngine.cpp
        ${LIBRARY_DIR}/XML/src/ProcessingInstruction.cpp
        ${LIBRARY_DIR}/XML/src/QName.cpp
        ${LIBRARY_DIR}/XML/src/SAXException.cpp
        ${LIBRARY_DIR}/XML/src/SAXParser.cpp
        ${LIBRARY_DIR}/XML/src/Text.cpp
        ${LIBRARY_DIR}/XML/src/TreeWalker.cpp
        ${LIBRARY_DIR}/XML/src/ValueTraits.cpp
        ${LIBRARY_DIR}/XML/src/WhitespaceFilter.cpp
        ${LIBRARY_DIR}/XML/src/XMLException.cpp
        ${LIBRARY_DIR}/XML/src/XMLFilter.cpp
        ${LIBRARY_DIR}/XML/src/XMLFilterImpl.cpp
        ${LIBRARY_DIR}/XML/src/XMLReader.cpp
        ${LIBRARY_DIR}/XML/src/XMLStreamParser.cpp
        ${LIBRARY_DIR}/XML/src/XMLStreamParserException.cpp
        ${LIBRARY_DIR}/XML/src/XMLString.cpp
        ${LIBRARY_DIR}/XML/src/XMLWriter.cpp

        # expat
        ${LIBRARY_DIR}/XML/src/xmlparse.cpp
    )

    add_library (_poco_xml ${SRCS})
    add_library (Poco::XML ALIAS _poco_xml)

    target_compile_options (_poco_xml PRIVATE -Wno-old-style-cast)
    target_include_directories (_poco_xml SYSTEM PUBLIC ${LIBRARY_DIR}/XML/include)
    target_link_libraries (_poco_xml PUBLIC Poco::Foundation Poco::XML::Expat)
else ()
    add_library (Poco::XML UNKNOWN IMPORTED GLOBAL)

    find_library (LIBRARY_POCO_XML PocoXML)
    find_path (INCLUDE_POCO_XML Poco/XML/XML.h)
    set_target_properties (Poco::XML PROPERTIES IMPORTED_LOCATION ${LIBRARY_POCO_XML})
    set_target_properties (Poco::XML PROPERTIES INTERFACE_INCLUDE_DIRECTORIES ${INCLUDE_POCO_XML})

    message (STATUS "Using Poco::XML: ${LIBRARY_POCO_XML} ${INCLUDE_POCO_XML}")
endif ()