Bug#990300: auctex: reproducible builds: Embedded timestamps in .el files

[Vagrant Cascadian]

Source: auctex
Severity: normal
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: timestamps
X-Debbugs-Cc: reproducible-bugs at lists.alioth.debian.org

The build timestamp is embedded in various .el files:

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

  ./usr/share/emacs/site-lisp/tex-site.el

  ;;;###·(autoloads·nil·"tex"·"tex.el"·(25292·55595·0·0))
  vs.
  ;;;###·(autoloads·nil·"tex"·"tex.el"·(24767·51934·0·0))

  ./usr/share/emacs/site-lisp/preview-latex.el

  ;;;###·(autoloads·nil·"preview"·"preview.el"·(25292·55677·147326
  vs.
  ;;;###·(autoloads·nil·"preview"·"preview.el"·(24767·52242·102378

The tex-site.el is is patched from debian/patches, so the timestamp
varies at the time of build and preview-latex.el is generated during the
build, so the timestamp varies.

The attached patches fix this by setting the timestamp on tex.el from
debian/rules using debian/changelog as a reference timestamp, and
patching Makefile.in to do the same for preview-latex.el.

Applying these patches should make auctex reproducible in the current
tests.reproducible-builds.org infrastructure.


Thanks for maintaining auctex!


live well,
  vagrant
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