Exclude X11Extras in qt6 for the moment

CMakeLists.txt

@@ -133,8 +133,11 @@ set_package_properties(KF5KDcraw PROPERTIES URL "https://phabricator.kde.org/sou
 
 find_package(X11)
 if(X11_FOUND)
-   find_package(Qt5 ${QT_MIN_VERSION} CONFIG REQUIRED X11Extras)
-   set(HAVE_X11 1)
+    if (QT_MAJOR_VERSION STREQUAL "5")
+        find_package(Qt5 ${QT_MIN_VERSION} CONFIG REQUIRED X11Extras)
+    endif()
+    # we need to add qt6 lib when we found x11
+    set(HAVE_X11 1)
 endif()
 
 configure_file(config-gwenview.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/config-gwenview.h)

lib/CMakeLists.txt

@@ -269,7 +269,12 @@ if (KF5KDcraw_FOUND)
 endif()
 
 if (HAVE_X11)
-    target_link_libraries(gwenviewlib Qt::X11Extras X11::X11)
+    target_link_libraries(gwenviewlib X11::X11)
+    if (QT_MAJOR_VERSION STREQUAL "5")
+        target_link_libraries(gwenviewlib Qt5::X11Extras)
+    else()
+        MESSAGE(STATUS "need to replace Qt5::X11Extras in qt6")
+    endif()
 endif()
 
 if (QT_MAJOR_VERSION STREQUAL "6")

lib/cms/cmsprofile.cpp

@@ -49,8 +49,10 @@ extern "C" {
 #include <X11/Xlib.h>
 #include <X11/Xatom.h>
 #include <fixx11h.h>
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
 #include <QtX11Extras/QX11Info>
 #endif
+#endif
 
 // local
 #include "gwenview_lib_debug.h"