$(OBJS): $(hdrdir)/ruby.h

callback-0.c callback-1.c callback-2.c \
callback-3.c callback-4.c callback-5.c \
callback-6.c callback-7.c callback-8.c \
	: callback.c

callback.c: $(srcdir)/mkcallback.rb $(srcdir)/../dl.h
	@echo "generating callback.c"
	@$(RUBY) $(srcdir)/mkcallback.rb -output=callback $(srcdir)/../dl.h