[  7%] Building C object gtk/window-decorator/CMakeFiles/gtk-window-decorator.dir/decorator.c.o
Linking C executable gtk-window-decorator
CMakeFiles/gtk-window-decorator.dir/gtk-window-decorator.c.o: In function `main':
/home/USER/src/compiz/compiz++/core/gtk/window-decorator/gtk-window-decorator.c:373: undefined reference to `gdk_x11_window_foreign_new_for_display'
/home/USER/src/compiz/compiz++/core/gtk/window-decorator/gtk-window-decorator.c:385: undefined reference to `gdk_x11_window_foreign_new_for_display'
CMakeFiles/gtk-window-decorator.dir/gdk.c.o: In function `create_gdk_window':
/home/USER/src/compiz/compiz++/core/gtk/window-decorator/gdk.c:65: undefined reference to `gdk_x11_window_foreign_new_for_display'
CMakeFiles/gtk-window-decorator.dir/events.c.o: In function `event_filter_func':
/home/USER/src/compiz/compiz++/core/gtk/window-decorator/events.c:897: undefined reference to `gdk_x11_window_foreign_new_for_display'
collect2: ld returned 1 exit status
make[2]: *** [gtk/window-decorator/gtk-window-decorator] Error 1
make[1]: *** [gtk/window-decorator/CMakeFiles/gtk-window-decorator.dir/all] Error 2
make: *** [all] Error 2