Dear maintainer(s) of psychtoolbox-3,

it appears that psychtoolbox-3 uses `pidof` in its testsuite, or that
at least one of its binary packages uses `pidof` at runtime.
Historically, `pidof` was provided by the Essential package
`sysvinit-tools`, making an explicit dependency unnecessary. However
`pidof` will soon be moved to `procps` and will no longer be part of
the Essential set.

Please add an explicit dependency on `procps`:

* via the `Depends:` field of all binary packages of psychtoolbox-3
  that use `pidof` at runtime;
* via the `Build-Depends:` field of psychtoolbox-3, if `pidof` is
  used in tests run at build-time;
* via the `Depends:` field of `debian/control/tests`, if `pidof` is
  used in autopkgtests.

To prevent any disruption for users of psychtoolbox-3, please add
this dependency now, before `pidof` is moved from `sysvinit-utils` to
`procps`. Alternatively, you could remove all uses of `pidof`.

It is believed that psychtoolbox-3 uses `pidof` due to the following
code snippets:

```
path: psychtoolbox-3_3.0.19.14.dfsg1-1/Psychtoolbox/PsychHardware/PsychVRToolbox/PsychOpenXR.m
    % Does the metrics fifo file exist at the expected location? And monado-service is running?
    monadometricsfile = getenv('XRT_METRICS_FILE');
    [rc, ~] = system('pidof monado-service');
    if exist(monadometricsfile, 'file') && (rc == 0)
      % Yes. Try to open it. monado-service must have been launched with proper
```

Feel free to close this issue if this is a false positive (for example
if this code is in an unreachable code path).

Regards,

We believe that the bug you reported is fixed in the latest version of
psychtoolbox-3, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1136564@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Étienne Mollier <emollier@debian.org> (supplier of updated psychtoolbox-3 package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Thu, 25 Jun 2026 20:25:22 +0200
Source: psychtoolbox-3
Architecture: source
Version: 3.0.22.2+dfsg-6
Distribution: unstable
Urgency: medium
Maintainer: Debian Med Packaging Team <debian-med-packaging@lists.alioth.debian.org>
Changed-By: Étienne Mollier <emollier@debian.org>
Closes: 1136564
Changes:
 psychtoolbox-3 (3.0.22.2+dfsg-6) unstable; urgency=medium
 .
   * Team upload.
 .
   [ Karsten Schöke ]
   * d/copyright: further licenses adapted
   * Disable LexActivator on unsupported architectures (loong64, sparc64).
 .
   [ Andreas Tille ]
   * psychtoolbox-3-common Depends: procps
     Closes: #1136564
 .
   [ Étienne Mollier ]
   * d/control: declare compliance to standards version 4.7.4.
   * d/copyright: deduplicate and merge paragraph.
     Files affected are Psychtoolbox/PsychOpenGL/MOGL/*.
   * d/rules: do not erase DEB_HOST_ARCH with dpkg-query.
     Fetch variables from /usr/share/dpkg/architecture.mk instead.
   * d/rules: fix permissions on i915_optimus_sync_tracing.sh.
   * d/copyright: fix paragraph ordering for PerlinNoiseLib.frag.txt.
   * d/copyright: remove mismatching Files-Excluded entry.
     The source package still ships WaffleLicense.txt, which is not
     problematic.  The rest should be covered by the glob matching library
     files.
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