linux-kernel - Re: [tip:perf/core] perf tools: Fix libdw-dev package name in error message

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Message-ID: <4BD75DDE.7040001@redhat.com>
Date:	Tue, 27 Apr 2010 17:57:50 -0400
From:	Masami Hiramatsu <mhiramat@...hat.com>
To:	Arnaldo Carvalho de Melo <acme@...hat.com>
CC:	Valdis.Kletnieks@...edu, mingo@...hat.com, hpa@...or.com,
	paulus@...ba.org, linux-kernel@...r.kernel.org, tzanussi@...il.com,
	a.p.zijlstra@...llo.nl, fweisbec@...il.com,
	stefanha@...ux.vnet.ibm.com, tglx@...utronix.de, mingo@...e.hu,
	linux-tip-commits@...r.kernel.org
Subject: Re: [tip:perf/core] perf tools: Fix libdw-dev package name in	error
 message

Arnaldo Carvalho de Melo wrote:
> Em Tue, Apr 27, 2010 at 09:48:20AM -0400, Valdis.Kletnieks@...edu escreveu:
>> On Tue, 27 Apr 2010 12:59:19 -0000, tip-bot for Stefan Hajnoczi said:
>>> Commit-ID:  f93830fbb06b67848c762f2177c06cc3cbb97deb
>>> Gitweb:     http://git.kernel.org/tip/f93830fbb06b67848c762f2177c06cc3cbb97deb
>>> Author:     Stefan Hajnoczi <stefanha@...ux.vnet.ibm.com>
>>> AuthorDate: Mon, 26 Apr 2010 15:39:54 -0300
>>> Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
>>> CommitDate: Mon, 26 Apr 2010 15:39:54 -0300
>>>
>>> perf tools: Fix libdw-dev package name in error message
>>>
>>> The headers required for DWARF support are provided by the libdw-dev
>>> package in Debian-based distros.
>>
>> Not all the world is Debian based.  As I mentioned before, the package needed
>> is elfutils-devel on Redhat/Fedora systesm.  For those boxes, you're changing a
>> 'elfutil-dev' that the user can guess is supposed to be -devel, to a package
>> that doesn't exist on Redhat/Fedora.  And to compound it, if the user guesses
>> that you meant libdwarf-devel, that still fails, because that does *not*
>> provide the libdw.h header - that's still in elfutil-devel.
> 
> It works for Red Hat, the message is:
> 
>         msg := $(warning No libdw.h found or old libdw.h found, disables dwarf support. Please install elfutils-devel/libdw-dev);

Right, if someone knows some other package name on other distro,
please tell us.

Thank you,

-- 
Masami Hiramatsu
e-mail: mhiramat@...hat.com
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