* config.h.win32.in : remove definition of HAVE_DIRENT_H
* gtk/gtkfilesel.c : due to GDir (new in glib) DIR isn't
required anymore, replace it.
* gtk/queryimmodules.c : DIR -> GDir replacement, also
getcwd() -> g_get_current_dir()
* gdk/win32/gdkgeometry-win32.c : adapt to refactored gdkgeometry-x11.c
Even 'noisy laugh' scolling appears to work, though I still can't
claim to have fully understood what it is supposed to do ...