25 lines
746 B
Makefile
25 lines
746 B
Makefile
subsysfilename = objfiles.txt
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SUBDIROBJS = $(SUBDIRS:%=%/$(subsysfilename))
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all: $(subsysfilename)
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objfiles.txt: Makefile $(SUBDIROBJS) $(OBJS)
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# Don't rebuild the list if only the OBJS have changed.
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$(if $(filter-out $(OBJS),$?),(echo $(addprefix $(subdir)/,$(OBJS)) ) >$@,touch $@)
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# make function to expand objfiles.txt contents
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expand_subsys = $(foreach file,$(1),$(if $(filter %/objfiles.txt,$(file)),$(addprefix $(CM_TOP_BUILDDIR)/,$(shell if [ -f $(file) ]; then cat $(file); fi)),$(file)))
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# Parallel make trickery
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$(SUBDIROBJS): $(SUBDIRS:%=%-recursive) ;
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.PHONY: $(SUBDIRS:%=%-recursive)
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$(SUBDIRS:%=%-recursive):
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$(MAKE) -C $(subst -recursive,,$@) all
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$(call recurse,clean)
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clean: clean-local
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clean-local:
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rm -f objfiles.txt
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