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Date: Thu, 10 Oct 2013 17:28:21 +0900
From: Namhyung Kim <namhyung@...nel.org>
To: Ingo Molnar <mingo@...nel.org>
Cc: linux-kernel@...r.kernel.org,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Arnaldo Carvalho de Melo <acme@...hat.com>,
David Ahern <dsahern@...il.com>, Jiri Olsa <jolsa@...hat.com>
Subject: Re: [PATCH 32/52] tools/perf/build: Speed up auto-detection of features by adding a 'test-all' target
On Thu, 10 Oct 2013 09:24:13 +0200, Ingo Molnar wrote:
> * Namhyung Kim <namhyung@...nel.org> wrote:
>
>> On Tue, 8 Oct 2013 12:11:02 +0200, Ingo Molnar wrote:
>> > +test-all:
>> > + $(BUILD) -Werror -fstack-protector -Wvolatile-register-var -O2
>> > -Werror -D_FORTIFY_SOURCE=2 -ldw -lelf -lnuma -lunwind -lunwind-x86_64
>> > -lelf -laudit -I/usr/include/slang -lslang $(shell pkg-config --libs
>> > --cflags gtk+-2.0 2>/dev/null) $(FLAGS_PERL_EMBED)
>> > $(FLAGS_PYTHON_EMBED) -DPACKAGE='perf' -DPACKAGE=perf -lbfd -ldl
>>
>> Also missed -Wstack-protector. And duplicate -Werror.
>>
>> Anyway, it'd be great to generate this flags as well as source file
>> automatically.
>
> Well, the source file would mean some extra construction overhead during
> detection - but generating the flags ought to be possible, by putting the
> test-all entry last and generating a rolling ALL_FLAGS variable via the
> rules above it.
>
> Would you like to write such a patch?
Well, I'll try to do it tomorrow. :)
Thanks,
Namhyung
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