The build path is embedded in /usr/bin/tvtime:

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/diffoscope-results/tvtime.html

  /build/1st/tvtime-1.0.11/src/speedy.c:1933
  vs.
  /build/2/tvtime-1.0.11/2nd/src/speedy.c:1933

The attached patch fixes this by switching to using debhelper compat 13
and debhelper's "dh" command, which passes compiler flags to avoid
embedding the build path (e.g. -ffile-prefix-map), and avoids embedding
differing buildids via rpath (even though rpath is later stripped).


With this patch applied, tvtime should build reproducibly on
tests.reproducible-builds.org!


live well,
  vagrant

We believe that the bug you reported is fixed in the latest version of
tvtime, 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 1014564@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Vagrant Cascadian <vagrant@debian.org> (supplier of updated tvtime 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: Fri, 08 Jul 2022 12:46:49 -0700
Source: tvtime
Architecture: source
Version: 1.0.11-7
Distribution: unstable
Urgency: medium
Maintainer: Debian QA Group <packages@qa.debian.org>
Changed-By: Vagrant Cascadian <vagrant@debian.org>
Closes: 1014564
Changes:
 tvtime (1.0.11-7) unstable; urgency=medium
 .
   * QA upload.
 .
   [ Debian Janitor ]
   * Trim trailing whitespace.
   * Bump debhelper from deprecated 7 to 12.
   * Set upstream metadata fields: Bug-Submit.
   * Rely on pre-initialized dpkg-architecture variables.
 .
   [ Vagrant Cascadian ]
   * Switch to "dh" and debhelper compat 13. (Closes: #1014564)
   * debian/control: Fix Vcs-* headers.
   * debian/copyright: Update links to licenses.
   * debian/control: Set Rules-Requires-Root to "no".
   * debian/control: Update Standards-Version to 4.6.1.
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 9edd07ebdeaac62916e992ee9d0c37b8d553a478 1448 tvtime_1.0.11-7.dsc
 4012454e0d781d93218cf6cb4b29bc97f8e7080d 40196 tvtime_1.0.11-7.debian.tar.xz
 0f99bbf9bb2257efaf13fa370b6063170057555b 9977 tvtime_1.0.11-7_arm64.buildinfo
Checksums-Sha256:
 df12d1aba511079e37e7fbc5c01118fcde12bbb46af0aa500b96fe224ceaff96 1448 tvtime_1.0.11-7.dsc
 604b19d8660b03e448b6679c4d88249b5475ce8de1963ab4d4cb0ac989376ba9 40196 tvtime_1.0.11-7.debian.tar.xz
 3974dcfcb1f6938a145563af41809de529136151765a2ffbd2f2bfd0a24dd24b 9977 tvtime_1.0.11-7_arm64.buildinfo
Files:
 af5dcd625f54bf0548e48ce349498355 1448 video optional tvtime_1.0.11-7.dsc
 e7616b8f7dd210ae4259e2337760315f 40196 video optional tvtime_1.0.11-7.debian.tar.xz
 c52118f55f1ff003740fa01d549810de 9977 video optional tvtime_1.0.11-7_arm64.buildinfo
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