linux-kernel - Re: [PROBLEM] perf requires python-devel to compile

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Message-ID: <516dba78.8695320a.583d.0722@mx.google.com>
Date:	Tue, 16 Apr 2013 20:41:59 -0000
From:	Michael Witten <mfwitten@...il.com>
To:	David Ahern <dsahern@...il.com>
Cc:	Pekka Enberg <penberg@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Ingo Molnar <mingo@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PROBLEM] perf requires python-devel to compile

On Tue, 16 Apr 2013 13:32:08 -0700, David Ahern wrote:

> On 4/16/13 10:08 AM, Michael Witten wrote:
>> You should probably disable python support more directly:
>>
>>    make NO_LIBPYTHON=1
> 
> sure, but I should not have to do anything. The intent of the existing 
> auto-probing code is to figure out what is installed and build a binary 
> with those capabilities. In this case not having python installed causes 
> it to blow up.

That's certainly how it behaved up until the regression.

To make matters worse, the NO_LIBPYTHON variable is checked only *after* 
probing for an executable `python'; in the case that no python is installed
at all, the workaround is to double up on your current trick:

  make PYTHON=false PYTHON_CONFIG=false
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