Adapt build system for building against qt6 (need plasma to be port to

qt6)

CMakeLists.txt

@@ -17,7 +17,7 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 
 set (QT_MIN_VERSION "5.15.0")
-set (KF5_MIN_VERSION "5.89.0")
+set (KF5_MIN_VERSION "5.90.0")
 
 find_package(ECM ${KF5_MIN_VERSION} REQUIRED CONFIG)
 
@@ -77,7 +77,7 @@ add_definitions(
     -DQT_NO_CAST_FROM_BYTEARRAY
     -DQT_DISABLE_DEPRECATED_BEFORE=0x050F02
     -DQT_DEPRECATED_WARNINGS_SINCE=0x060000
-    -DKF_DISABLE_DEPRECATED_BEFORE_AND_AT=0x055200
+    -DKF_DISABLE_DEPRECATED_BEFORE_AND_AT=0x055900
     -DKF_DEPRECATED_WARNINGS_SINCE=0x060000
 )
 

src/CMakeLists.txt

@@ -69,10 +69,10 @@ if (Qt5TextToSpeech_FOUND)
 endif()
 
 target_link_libraries(knights
-     Qt5::Network
-     Qt5::Svg
-     Qt5::Gui
-     Qt5::Concurrent
+     Qt${QT_MAJOR_VERSION}::Network
+     Qt${QT_MAJOR_VERSION}::Svg
+     Qt${QT_MAJOR_VERSION}::Gui
+     Qt${QT_MAJOR_VERSION}::Concurrent
      KF5::Crash
      KF5::Solid
      KF5::WidgetsAddons