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In case the build system builds a directory with empty Makefile, one which does not contain any obj-y entries, the build fails to link due to missing built-in.o . This happens because of this part of scripts/Makefile.build 81 ifneq ($(strip $(obj-y) $(obj-m) $(obj-) $(subdir-m) $(lib-target)),) 82 builtin-target := $(obj)/built-in.o 83 endif which does not assign builtin-target in case obj-y is empty. The built-in target is then not built at all, and built-in.o is not generated by this part of scripts/Makefile.build 325 ifdef builtin-target 326 quiet_cmd_link_o_target = AR $@ 327 # If the list of objects to link is empty, just create an empty built-in.o ... 335 targets += $(builtin-target) 336 endif # builtin-target This is the correct behavior. The final link however expects the built-in.o to exist in every directory included in the build, even in those where the aforementioned code skipped generation of built-in.o . Make sure the built-in.o does exist for every directory used in final link simply by doing touch on every built-in.o used for the link, which will create empty built-in.o in case any built-in.o is missing. A possible alternative fix is the always define the builtin-target and always generate built-in.o . Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Tested-by: Quentin Schulz <quentin.schulz@cherry.de>