CONFIGURE	?= configure
CONFIGURE_AC 	?= $(CONFIGURE).ac
CONFIG_STATUS 	?= config.status

CONFIGURE_ACS 	+= $(CONFIGURE_AC)
CONFIGURE_ACS 	+= subdirmk/subdirmk.ac

$(top_srcdir)/$(CONFIGURE): $(addprefix $(top_srcdir)/,$(CONFIGURE_ACS))
	cd $(top_srcdir) && autoconf

$(CONFIG_STATUS): $(top_srcdir)/$(CONFIGURE)
	./$(CONFIG_STATUS) --recheck

MAKEFILES += subdirmk/regen.mk

main.mk $(MAKEFILES): .makefiles.stamp ;
.makefiles.stamp: 						\
		$(top_srcdir)/subdirmk/generate			\
		$(CONFIG_STATUS)				\
		$(top_srcdir)/Perdir.mk.in			\
		$(foreach m,$(MAKEFILES),$(top_srcdir)/$(m).in)
	: $? X $(filter-out Subdir.mk.in regen.mk.in, $(notdir $?))
	./$(CONFIG_STATUS) $(if					\
		$(filter-out Subdir.mk.in regen.mk.in, $(notdir $?)),,	\
		$(patsubst %.mk.in,%.mk,$(filter %.mk.in,$?)))
	touch $@

realclean:: clean
	$(RM) config.status config.log
	$(RM) main.mk subdirmk/regen.mk $(MAKEFILES)
	$(RM) $(addsuffix Makefile,$(dir $(MAKEFILES)))

-include $(ALL_DEPFILES)