Re: [PATCH 2/3] perf build: Use FEATURE-INCLUDE in bpf subproject

From: Jiri Olsa
Date: Thu Nov 26 2015 - 13:12:12 EST


On Thu, Nov 26, 2015 at 01:31:30PM -0300, Arnaldo Carvalho de Melo wrote:
> Em Thu, Nov 26, 2015 at 02:54:03PM +0100, Jiri Olsa escreveu:
> > Using FEATURE-INCLUDE in bpf subproject in case bpf is built
> > via perf. Keep the current features detection for other cases.
> >
> > Cc: Wang Nan <wangnan0@xxxxxxxxxx>
> > Link: http://lkml.kernel.org/n/tip-utuczk899ckz6qtggqvhm7yu@xxxxxxxxxxxxxx
> > Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
>
> Clashes with:
>
> d8ad6a15cc3a ("tools lib bpf: Don't do a feature check when cleaning")
>
> That has, at that point:
>
> +check_feat := 1
> +NON_CHECK_FEAT_TARGETS := clean TAGS tags cscope help
> +ifdef MAKECMDGOALS
> +ifeq ($(filter-out $(NON_CHECK_FEAT_TARGETS),$(MAKECMDGOALS)),)
> + check_feat := 0
> +endif
> +endif
> +
> +ifeq ($(check_feat),1)
> include $(srctree)/tools/build/Makefile.feature
> +endif
>
> On a related note:
>
> [acme@zoo linux]$ make O=/tmp/build/perf -C tools/perf
> make: Entering directory '/home/git/linux/tools/perf'
> BUILD: Doing 'make -j4' parallel build
> make[2]: Nothing to be done for 'fixdep'.
> make: Leaving directory '/home/git/linux/tools/perf'
>
> Can we get away with that "make[2]: Nothing to be done for 'fixdep'."
> line?

I'll check on that

jirka
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