linux-kernel - Re: [PATCH v3] cpupower: Make help command available for custom install dir

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Date: Fri, 28 Jun 2024 13:30:56 +0200
From: Roman Storozhenko <romeusmeister@...il.com>
To: Shuah Khan <skhan@...uxfoundation.org>
Cc: Thomas Renninger <trenn@...e.com>, Shuah Khan <shuah@...nel.org>, 
	Javier Carrasco <javier.carrasco.cruz@...il.com>, linux-pm@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] cpupower: Make help command available for custom
 install dir

On Thu, Jun 27, 2024 at 7:33 PM Shuah Khan <skhan@...uxfoundation.org> wrote:
>
> On 6/27/24 01:49, Roman Storozhenko wrote:
> > When the 'cpupower' utility installed in the custom dir, it fails to
> > render appropriate help info for a particular subcommand:
> > $ LD_LIBRARY_PATH=lib64/ bin/cpupower help monitor
> > with error message like 'No manual entry for cpupower-monitor.1'
> > The issue is that under the hood it calls 'exec' function with
> > the following args: 'man cpupower-monitor.1'. In turn, 'man' search
> > path is defined in '/etc/manpath.config'. Of course it contains only
> > standard system man paths.
> > Make subcommands help available for a user by setting up 'MANPATH'
> > environment variable to the custom installation man pages dir. That
> > variable value will be prepended to the man pages standard search paths
> > as described in 'SEARCH PATH' section of MANPATH(5).
>
> What I am asking you is what happens when you set the MANPATH before
> running the command?

It adds the custom search path to the beginning of the MANPATH variable.
I tested this case. All works as expected.

>
> thanks,
> -- Shuah



-- 
Kind regards,
Roman Storozhenko