if cross compiling clutter using mingw using an out of tree build
directory then a pre-requisite for creating the resources.o file
containing the transparent cursor is for the win32 directory itself to
be created at $(top_builddir)/clutter/win32.
# won't let you link against the .o directly because it wants you to
# link against libtool objects for dynamic libraries.
.rc.o :
+ mkdir -p win32
$(WINDRES) -I$(srcdir)/win32 $< $@
win32/resources.o : $(srcdir)/win32/invisible-cursor.cur