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

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Message-ID: <c9df6637-6055-4668-b80b-a1a6e6be445e@linuxfoundation.org>
Date: Thu, 27 Jun 2024 11:33:03 -0600
From: Shuah Khan <skhan@...uxfoundation.org>
To: Roman Storozhenko <romeusmeister@...il.com>,
 Thomas Renninger <trenn@...e.com>, Shuah Khan <shuah@...nel.org>
Cc: Javier Carrasco <javier.carrasco.cruz@...il.com>,
 linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
 Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH v3] cpupower: Make help command available for custom
 install dir

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?

thanks,
-- Shuah