- $(top_srcdir)/Perdir.mk.in \
- $(foreach m,$(MAKEFILES),$(top_srcdir)/$(m).in)
- ./$(CONFIG_STATUS)
+ $(MAKEFILE_TEMPLATES)
+# This filtering arranges that we can often run config.status to
+# generate only particular output files. We look for *inputs* that
+# have changed. If the only inputs that have changed are ones that we
+# know affect only one output (Subdir.mk.in and regen.mk.in), we pass
+# config.status the corresponding output file names. Otherwise we
+# pass nothing and config.status does them all. We need to mention
+# regen.mk.in twice because if $(top_srcdir) is `.', make elides the
+# directory part from $?.
+ ./$(CONFIG_STATUS) $(if \
+ $(filter-out Subdir.sd.mk %/Subdir.sd.mk \
+ %.mk.in \
+ , $?),, \
+ $(sort \
+ $(patsubst %.sd.mk,%.mk,$(filter %.sd.mk,$?)) \
+ $(patsubst %.mk.in,%.mk,$(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)