diff --git a/kcmkwin/kwincompositing/CMakeLists.txt b/kcmkwin/kwincompositing/CMakeLists.txt
index 57d77506d5..be97b0bd98 100644
--- a/kcmkwin/kwincompositing/CMakeLists.txt
+++ b/kcmkwin/kwincompositing/CMakeLists.txt
@@ -19,7 +19,8 @@ install(TARGETS kcm_kwincompositing  DESTINATION ${PLUGIN_INSTALL_DIR} )
 
 # CompositingPrefs uses OpenGL
 if(OPENGL_FOUND AND NOT KWIN_HAVE_OPENGLES_COMPOSITING)
-  target_link_libraries(kcm_kwincompositing ${OPENGL_gl_LIBRARY})
+  target_link_libraries(kcm_kwincompositing kwinglutils ${OPENGL_gl_LIBRARY})
+  set_target_properties(kcm_kwincompositing PROPERTIES COMPILE_FLAGS -DKWIN_HAVE_OPENGL)
   # -ldl used by OpenGL code
   find_library(DL_LIBRARY dl)
   if (DL_LIBRARY)
@@ -27,7 +28,8 @@ if(OPENGL_FOUND AND NOT KWIN_HAVE_OPENGLES_COMPOSITING)
   endif(DL_LIBRARY)
 endif(OPENGL_FOUND AND NOT KWIN_HAVE_OPENGLES_COMPOSITING)
 if(KWIN_HAVE_OPENGLES_COMPOSITING)
-  target_link_libraries(kcm_kwincompositing ${OPENGLES_LIBRARIES} ${OPENGLES_EGL_LIBRARIES})
+  target_link_libraries(kcm_kwincompositing kwinglesutils ${OPENGLES_LIBRARIES} ${OPENGLES_EGL_LIBRARIES})
+  set_target_properties(kcm_kwincompositing PROPERTIES COMPILE_FLAGS "-DKWIN_HAVE_OPENGL -DKWIN_HAVE_OPENGLES")
 endif(KWIN_HAVE_OPENGLES_COMPOSITING)
 if (X11_Xrender_FOUND)
   target_link_libraries(kcm_kwincompositing ${X11_Xrender_LIB})
diff --git a/kcmkwin/kwinscreenedges/CMakeLists.txt b/kcmkwin/kwinscreenedges/CMakeLists.txt
index 94e841c2c7..685eed18bb 100644
--- a/kcmkwin/kwinscreenedges/CMakeLists.txt
+++ b/kcmkwin/kwinscreenedges/CMakeLists.txt
@@ -15,7 +15,8 @@ install( TARGETS kcm_kwinscreenedges  DESTINATION ${PLUGIN_INSTALL_DIR} )
 
 # CompositingPrefs uses OpenGL
 if( OPENGL_FOUND AND NOT KWIN_HAVE_OPENGLES_COMPOSITING )
-  target_link_libraries( kcm_kwinscreenedges ${OPENGL_gl_LIBRARY} )
+  target_link_libraries( kcm_kwinscreenedges kwinglutils ${OPENGL_gl_LIBRARY} )
+  set_target_properties(kcm_kwinscreenedges PROPERTIES COMPILE_FLAGS -DKWIN_HAVE_OPENGL)
 # -ldl used by OpenGL code
   find_library( DL_LIBRARY dl )
   if( DL_LIBRARY )
@@ -23,7 +24,8 @@ if( OPENGL_FOUND AND NOT KWIN_HAVE_OPENGLES_COMPOSITING )
   endif( DL_LIBRARY )
 endif( OPENGL_FOUND AND NOT KWIN_HAVE_OPENGLES_COMPOSITING )
 if(KWIN_HAVE_OPENGLES_COMPOSITING)
-  target_link_libraries(kcm_kwinscreenedges ${OPENGLES_LIBRARIES} ${OPENGLES_EGL_LIBRARIES})
+  target_link_libraries(kcm_kwinscreenedges kwinglesutils ${OPENGLES_LIBRARIES} ${OPENGLES_EGL_LIBRARIES})
+  set_target_properties(kcm_kwinscreenedges PROPERTIES COMPILE_FLAGS "-DKWIN_HAVE_OPENGL -DKWIN_HAVE_OPENGLES")
 endif(KWIN_HAVE_OPENGLES_COMPOSITING)
 if( X11_Xrender_FOUND )
   target_link_libraries( kcm_kwinscreenedges ${X11_Xrender_LIB} )