Adapt to QtX11Extras being gone in Qt6

daemon/CMakeLists.txt

@@ -108,7 +108,12 @@ if(HAVE_WIRELESS_SUPPORT)
 endif()
 
 if (XCB_FOUND) # kwin kscreen helper effect
-    target_link_libraries(powerdevilcore Qt::X11Extras XCB::XCB)
+    target_link_libraries(powerdevilcore XCB::XCB)
+    if (QT_MAJOR_VERSION EQUAL "5")
+        target_link_libraries(powerdevilcore Qt5::X11Extras)
+    else()
+       target_link_libraries(powerdevilcore Qt::GuiPrivate)
+    endif()
 endif ()
 
 # target no.2 - powerdevil kded module
@@ -152,7 +157,11 @@ target_link_libraries(powerdevil
     powerdevilcore
 )
 if (XCB_FOUND)
-    target_link_libraries(powerdevil Qt::X11Extras)
+    if (QT_MAJOR_VERSION EQUAL "5")
+        target_link_libraries(powerdevil Qt5::X11Extras)
+    else()
+        target_link_libraries(powerdevil Qt::GuiPrivate)
+    endif()
 endif ()
 
 target_link_libraries(powerdevil ${UDEV_LIBS})

daemon/actions/bundled/dpms.cpp

@@ -33,7 +33,11 @@
 #include <QDBusMessage>
 #include <QDBusPendingCall>
 #include <QGuiApplication>
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
 #include <QX11Info>
+#else
+#include <private/qtx11extras_p.h>
+#endif
 #include <QTimer>
 #include <QDebug>
 

daemon/actions/bundled/xcbdpmshelper.cpp

@@ -26,7 +26,11 @@
 #include <kwinkscreenhelpereffect.h>
 
 // Qt
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
 #include <QX11Info>
+#else
+#include <private/qtx11extras_p.h>
+#endif
 
 // xcb
 #include <xcb/dpms.h>

daemon/kwinkscreenhelpereffect.cpp

@@ -20,7 +20,11 @@
 #include "kwinkscreenhelpereffect.h"
 
 #include <QCoreApplication>
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
 #include <QX11Info>
+#else
+#include <private/qtx11extras_p.h>
+#endif
 #include <chrono>
 
 using namespace std::chrono_literals;