Adapt build system for building against qt6

CMakeLists.txt

@@ -9,7 +9,7 @@ set(RELEASE_SERVICE_VERSION "${RELEASE_SERVICE_VERSION_MAJOR}.${RELEASE_SERVICE_
 project(kbreakout VERSION ${RELEASE_SERVICE_VERSION})
 
 set (QT_MIN_VERSION "5.15.0")
-set (KF5_MIN_VERSION "5.85.0")
+set (KF5_MIN_VERSION "5.90.0")
 
 find_package(ECM ${KF5_MIN_VERSION} REQUIRED CONFIG)
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${ECM_MODULE_PATH})
@@ -24,7 +24,7 @@ include(ECMAddAppIcon)
 include(ECMQtDeclareLoggingCategory)
 include(ECMSetupVersion)
 
-find_package(Qt5 ${QT_MIN_VERSION} REQUIRED NO_MODULE COMPONENTS Widgets Qml Quick QuickWidgets)
+find_package(Qt${QT_MAJOR_VERSION} ${QT_MIN_VERSION} REQUIRED NO_MODULE COMPONENTS Widgets Qml Quick QuickWidgets)
 find_package(KF5 ${KF5_MIN_VERSION} REQUIRED COMPONENTS
     CoreAddons 
     Config 

src/CMakeLists.txt

@@ -36,7 +36,7 @@ target_link_libraries(kbreakout
     KF5::DBusAddons
     KF5::XmlGui
     KF5::Crash
-    Qt5::Xml
+    Qt${QT_MAJOR_VERSION}::Xml
 )
 
 install(TARGETS kbreakout ${KDE_INSTALL_TARGETS_DEFAULT_ARGS})