[PATCH 1/2] powerpc/boot: Expose Kconfig symbols to wrapper

[Joel Stanley]

On Thu, 11 Oct 2018 at 10:32, Michael Ellerman <mpe at ellerman.id.au> wrote:
>
> Michael Ellerman <mpe at ellerman.id.au> writes:
> > Joel Stanley <joel at jms.id.au> writes:
> >> diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
> >> index 0fb96c26136f..eeed74e0dfca 100644
> >> --- a/arch/powerpc/boot/Makefile
> >> +++ b/arch/powerpc/boot/Makefile
> >> @@ -197,9 +197,14 @@ $(obj)/empty.c:
> >>  $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds : $(obj)/%: $(srctree)/$(src)/%.S
> >>      $(Q)cp $< $@
> >>
> >> +$(obj)/serial.c: $(obj)/autoconf.h
> >> +
> >> +$(obj)/autoconf.h: $(obj)/%: $(srctree)/include/generated/%
> >> +    $(Q)cp $< $@
> >> +
> >
> > This gives me:
> >   make[2]: *** No rule to make target '../include/generated/autoconf.h', needed by 'arch/powerpc/boot/autoconf.h'.  Stop.
> >
> > The ../ is $(srctree).
>
> Seems autoconf.h is in objtree:
>
>   ~/linux$ make O=build prepare
>   ...
>   ~/linux$ find . -name autoconf.h
>   ./drivers/staging/rtl8723bs/include/autoconf.h
>   ./tools/testing/radix-tree/generated/autoconf.h
>   ./build/include/generated/autoconf.h

Ah. That's obvious now that you point it out. Obviously myself and
0day do in-tree builds.

> So I'll fix that up.

Thanks!