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Re: Bug 116131: tools/perf and O= fails to build

From TJ <linux@iam.tj>
Newsgroups linux.kernel
Subject Re: Bug 116131: tools/perf and O= fails to build
Date 2016-04-11 10:40 +0200
Message-ID <rmFy3-2Qu-27@gated-at.bofh.it> (permalink)
References <rmvp0-3a8-3@gated-at.bofh.it> <rmELD-2aR-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 11-04-2016 08:40, Andy Shevchenko wrote:
> On Mon, Apr 11, 2016 at 12:36 AM, TJ <linux@iam.tj> wrote:
>> Trying to do an out-of-tree build using either absolute or relative 
>> paths
>> for O= fails when trying to build tools/perf.
> 
> Create directory manually.
> acme@ pointed me out to some commit where it's done on purpose.

It's trying to use *the wrong* directory path entirely.

It looks to be caused by the sub-make calls that pass O=$(OUTPUT) 
because OUTPUT has been set to $(O)+subdir.

Then, in the sub-make tools/scripts/Makefile.include is called *again* 
and does the same $(O)+subdir resulting in basedir+subdir+subdir.

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Thread

Bug 116131: tools/perf and O= fails to build TJ <linux@iam.tj> - 2016-04-10 23:50 +0200
  Re: Bug 116131: tools/perf and O= fails to build Andy Shevchenko <andy.shevchenko@gmail.com> - 2016-04-11 09:50 +0200
    Re: Bug 116131: tools/perf and O= fails to build TJ <linux@iam.tj> - 2016-04-11 10:40 +0200
      Re: Bug 116131: tools/perf and O= fails to build Andy Shevchenko <andy.shevchenko@gmail.com> - 2016-04-11 10:50 +0200

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