I found KBUILD_OUTPUT variable is useless in the rpm-pkg and rpm target.
Yes there is a comment said:
# Note that the rpm-pkg target cannot be used with KBUILD_OUTPUT,
# but the binrpm-pkg target can; for some reason O= gets ignored.
It does not say for what reason. Also, the code under rpm-pkg checks if
KBUILD_OUTPUT is defined.
> @if test -n "$(KBUILD_OUTPUT)"; then \
> echo "Building source + binary RPM is not possible outside
the"; \
> echo "kernel source tree. Don't set KBUILD_OUTPUT, or use
the"; \
> echo "binrpm-pkg target instead."; \
> false; \
> fi
But the fact is, whether or not the user use "O=" option, KBUILD_OUTPUT
is always empty. I try to figure out why but the big Makefile drives me
crazy. I'm thinking if the "O=" option really don't effect KBUILD_OUTPUT
here, at least remove these code.
--
Bin Wang
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