linux-kernel - Re: [PATCH] perf tools: Fix build error on read only source.

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Message-ID: <20100819141332.GK9410@ghostprotocols.net>
Date:	Thu, 19 Aug 2010 11:13:32 -0300
From:	Arnaldo Carvalho de Melo <acme@...radead.org>
To:	Bernd Petrovitsch <bernd@...prog.at>
Cc:	Kusanagi Kouichi <slash@...auone-net.jp>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>, Ingo Molnar <mingo@...e.hu>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf tools: Fix build error on read only source.

Em Thu, Aug 19, 2010 at 12:31:48PM +0200, Bernd Petrovitsch escreveu:
> On Mit, 2010-08-18 at 14:19 -0300, Arnaldo Carvalho de Melo wrote:
> > Em Wed, Aug 18, 2010 at 05:25:41PM +0200, Bernd Petrovitsch escreveu:
> > > On Mit, 2010-08-18 at 11:14 -0300, Arnaldo Carvalho de Melo wrote:
> [...]
> > > > $(phony feature-tests): 
> > > First, this should probably have been:
> > > .PHONY: feature-tests
> > 
> > Humm, isn't $(phony feature-tests): variation valid and shorter, humm,
> > yeah, seems to be for !GNU make :-\
> > 
> > (http://makepp.sourceforge.net/1.18/t_phony.html)
> 
> Funny, I didn't knew GNU-make's "$(phony target): " construct.

it doesn't have AFAIK, its just this makepp, that I never had heard
about before, that has it, probably it introduced the idea. Quite
sensible, it seems.
 
> Hmm, what GNU-make versions and other `make`s are considered (or should
> be) supported?

I think only GNU make is supported.
 
> [...]
> > There is no use of mktemp in Kbuild, that I try hard to use as reference
> > here.
> 
> FWIW fine with me - I just threw an idea in.

Right, and I considered it, using Kbuild usage as a validation gauge to
say we probably shouldn't use it :)

- Arnaldo
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