Adds latest migration results

qt6-after/qt6-migrated-legatus/Lts/Plugins/ServiceMonitor/Gui/SystemMonitor/CMakeLists.txt

@@ -5,6 +5,14 @@
 # Created by Astrid Mueller, SLSE, 2016-02-29
 #
 
+# Make ${Qt6_Widgets} optional
+if(QT6_GUI_AVAILABLE AND TARGET Qt6::Widgets)
+  set(Qt6_Widgets ${Qt6_Widgets})
+else()
+  set(Qt6_Widgets "")
+endif()
+
+
 SET(smo_system_monitor_gui_SRCS
   smo_system_monitor_gui_plugin.cpp
   smo_system_monitor_gui_plugin.h
@@ -17,15 +25,17 @@ NGL_WRAP_UI(smo_system_monitor_gui_SRCS
 )
 
 NGL_ADD_LIBRARY(WS SmoSystemMonitorGuiPlugin MODULE ${smo_system_monitor_gui_SRCS})
-NGL_TARGET_LINK_LIBRARIES(SmoSystemMonitorGuiPlugin
-  LtsSession
-  LtsUtilsSettings
-  Qt6::WebEngineWidgets
-  Qt6::Widgets
-  SmoCommon
-  SmoSystemMonitorGuiPluginInterface
-  svcSmoDummy
-)
+if(QT6_GUI_AVAILABLE)
+  NGL_TARGET_LINK_LIBRARIES(SmoSystemMonitorGuiPlugin
+    LtsSession
+    LtsUtilsSettings
+    Qt6::WebEngineWidgets
+    ${Qt6_Widgets}
+    SmoCommon
+    SmoSystemMonitorGuiPluginInterface
+    svcSmoDummy
+  )
+endif()
 
 NGL_INSTALL_TARGET(SmoSystemMonitorGuiPlugin)