AUTOCONF_IN = $(wildcard *.in */*.in) AUTOCONF_GENERATED = $(patsubst %.in,%,$(AUTOCONF_IN)) ifneq ($(AUTOCONF_IN),) ifneq ($(AUTOCONF_GENERATED),$(wildcard $(AUTCONF_GENERATED))) include $(MODDIR)/make/autoconf.mk endif endif include $(MODDIR)/make/topdir.mk