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Subjectlinux-next: occassional build errors
Hi Masahiro,

I don't know if that has anything to changes in the kbuild system, but
since Tuesday, I have been getting random build errors that go away after
I remove the object directory and build again. The latest example is this:

include/linux/kconfig.h: file not recognized: file format not recognized
make[2]: *** [scripts/ crypto/crypto_user.o] Error 1
make[1]: *** [Makefile:1057: crypto] Error 2
make: *** [Makefile:152: sub-make] Error 2
Command exited with non-zero status 2

It is always complaining about a .h file ...

Makefile:152 is the MAKE lien below:

# Invoke a second make in the output directory, passing relevant variables
-f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))

Makefile:1057 is the MAKE line below:

PHONY += $(vmlinux-dirs)
$(vmlinux-dirs): prepare scripts
$(Q)$(MAKE) $(build)=$@ need-builtin=1

scripts/ is the if_changed line below:

$(multi-used-m): FORCE
$(call if_changed,link_multi-m)
@{ echo $(@:.o=.ko); echo $(filter-out FORCE,$^); \
$(cmd_undef_syms); } > $(MODVERDIR)/$(@F:.o=.mod)
$(call multi_depend, $(multi-used-m), .o, -objs -y -m)

Not sure what else I can tell you.

Stephen Rothwell
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