diff --git a/plugins/qmljs/3rdparty/qtcreator-libs/CMakeLists.txt b/plugins/qmljs/3rdparty/qtcreator-libs/CMakeLists.txt
index 565870c332..97126ba517 100644
--- a/plugins/qmljs/3rdparty/qtcreator-libs/CMakeLists.txt
+++ b/plugins/qmljs/3rdparty/qtcreator-libs/CMakeLists.txt
@@ -1,93 +1,94 @@
 remove_definitions(
     -DQT_NO_CAST_FROM_ASCII
     -DQT_NO_CAST_TO_ASCII
     -DQT_NO_CAST_FROM_BYTEARRAY
 )
 
 qt5_wrap_ui(uifiles_SRCS
 	utils/projectintropage.ui
 	utils/filewizardpage.ui
 	utils/newclasswidget.ui
 )
 
 add_library(kdevqtc-qmlsupport STATIC
 	${uifiles_SRCS}
 	languageutils/componentversion.cpp
 	languageutils/fakemetaobject.cpp
 	qmljs/parser/qmldirparser.cpp
 	qmljs/parser/qmlerror.cpp
 	qmljs/parser/qmljsast.cpp
 	qmljs/parser/qmljsastvisitor.cpp
 	qmljs/parser/qmljsengine_p.cpp
 	qmljs/parser/qmljsgrammar.cpp
 	qmljs/parser/qmljslexer.cpp
 	qmljs/parser/qmljsparser.cpp
 	qmljs/qmljsdocument.cpp
 	qmljs/qmljsutils.cpp
 	utils/changeset.cpp
 	utils/fileutils.cpp
 	utils/qtcassert.cpp
 	utils/savefile.cpp
 	utils/json.cpp
 	utils/filesystemwatcher.cpp
 	utils/environment.cpp
 	utils/hostosinfo.cpp
 	utils/runextensions.cpp
 
     qmljs/persistenttrie.cpp
     qmljs/qmljsbind.cpp
     qmljs/qmljsbundle.cpp
     qmljs/qmljscontext.cpp
     qmljs/qmljsdialect.cpp
     qmljs/qmljsevaluate.cpp
     qmljs/qmljsimportdependencies.cpp
     qmljs/qmljsinterpreter.cpp
     qmljs/qmljsmodelmanagerinterface.cpp
     qmljs/qmljsplugindumper.cpp
     qmljs/qmljsqrcparser.cpp
     qmljs/qmljsscopeastpath.cpp
     qmljs/qmljsscopebuilder.cpp
     qmljs/qmljsscopechain.cpp
     qmljs/qmljstypedescriptionreader.cpp
     qmljs/qmljsvalueowner.cpp
     qmljs/qmljsviewercontext.cpp
 )
 
 if (APPLE) 
     target_sources(kdevqtc-qmlsupport PRIVATE utils/fileutils_mac.mm)
     target_link_libraries(kdevqtc-qmlsupport LINK_PRIVATE "-framework Foundation" )
 endif()
 
 # silence warnings which won't be fixed in this 3rd-party code copy, to keep diff small
 if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
     add_target_compile_flag_if_supported(kdevqtc-qmlsupport PRIVATE "-Wno-documentation")
 endif()
 if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU" OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
     add_target_compile_flag_if_supported(kdevqtc-qmlsupport PRIVATE "-Wno-pedantic")
     add_target_compile_flag_if_supported(kdevqtc-qmlsupport PRIVATE "-Wno-implicit-fallthrough")
     add_target_compile_flag_if_supported(kdevqtc-qmlsupport PRIVATE "-Wno-overloaded-virtual")
     add_target_compile_flag_if_supported(kdevqtc-qmlsupport PRIVATE "-Wno-zero-as-null-pointer-constant")
+    add_target_compile_flag_if_supported(kdevqtc-qmlsupport PRIVATE "-Wno-deprecated-declarations")
 endif()
 if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
    add_target_compile_flag_if_supported(kdevqtc-qmlsupport PRIVATE "-Wno-suggest-override")
    add_target_compile_flag_if_supported(kdevqtc-qmlsupport PRIVATE "-Wno-class-memaccess")
    add_target_compile_flag_if_supported(kdevqtc-qmlsupport PRIVATE "-Wno-deprecated-copy")
 endif()
 
 target_compile_definitions(kdevqtc-qmlsupport PUBLIC -DLANGUAGEUTILS_LIBRARY -DUTILS_LIBRARY -DQT_CREATOR -DQML_BUILD_STATIC_LIB)
 # add as SYSTEM include dir so compiler does not emit warnings for the lib headers
 target_include_directories(kdevqtc-qmlsupport SYSTEM PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
 # optional.hpp needs -fexceptions
 # (otherwise: plugins/qmljs/3rdparty/qtcreator-libs/3rdparty/optional/optional.hpp:561:94: error: exception handling disabled, use -fexceptions to enable)
 kde_target_enable_exceptions(kdevqtc-qmlsupport PRIVATE)
 target_link_libraries(kdevqtc-qmlsupport LINK_PRIVATE
     Qt5::Core
     Qt5::Gui
     Qt5::Widgets
     Qt5::Network
     Qt5::Xml
 )
 set_target_properties(kdevqtc-qmlsupport PROPERTIES
     CXX_STANDARD 14
     CXX_STANDARD_REQUIRED YES
 )