diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -34,7 +34,7 @@
     Plasma
 )
 
-find_package(X11 REQUIRED)
+find_package(X11 REQUIRED OPTIONAL_COMPONENTS Xtst)
 find_package(LibKWorkspace CONFIG REQUIRED)
 
 if(X11_FOUND)
diff --git a/config-X11.h.cmake b/config-X11.h.cmake
--- a/config-X11.h.cmake
+++ b/config-X11.h.cmake
@@ -1,44 +1,5 @@
-/* Define if you have the XRandR extension */
-#cmakedefine HAVE_XRANDR 1
-
-/* Define if you have the XDamage extension */
-#cmakedefine HAVE_XDAMAGE 1
-
-/* Define if you have the XKB extension */
-#cmakedefine HAVE_XKB 1
-
-/* Define if you have the Xinerama extension */
-#cmakedefine HAVE_XINERAMA 1
-
-/* Define if you have the XSHM (MIT SHM) extension */
-#cmakedefine HAVE_XSHM 1
-
-/* Define if you have the XComposite extension */
-#cmakedefine HAVE_XCOMPOSITE 1
-
-/* Define to 1 if you have Xcursor */
-#cmakedefine HAVE_XCURSOR 1
-
-/* Define if you have the xf86misc extension */
-#cmakedefine HAVE_XF86MISC 1
-
-/* Define if you have the XFixes extension */
-#cmakedefine HAVE_XFIXES 1
-
 /* Define if you have the XTest extension */
 #cmakedefine HAVE_XTEST 1
 
-/* Define if your system has XRender support */
-#cmakedefine HAVE_XRENDER 1
-
-/* Define if you have OpenGL */
-#cmakedefine HAVE_OPENGL 1
-
-/* Define if you have the XSync extension */
-#cmakedefine HAVE_XSYNC 1
-
-/* Define if you have XRandR 1.3 */
-#cmakedefine HAS_RANDR_1_3 1
-
 /* Define if you have X11 at all */
 #cmakedefine01 HAVE_X11