Bug#990084: graphicsmagick: reproducible builds: Embeds different paths on usrmerge system

[Vagrant Cascadian]

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

The delegates.mgk file embeds the full path to the "mv" binary, which is
different on usrmerge systems:

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

  ./usr/lib/GraphicsMagick-1.4/config/delegates.mgk

  <delegate·decode="hpg"·command='"hp2xx"·-q·-m·eps·-f·`basename·"%o"`·"%i"·&&·/bin/mv·-f·`basename·"%o"`·"%o"'·/>
  vs.
  <delegate·decode="hpg"·command='"hp2xx"·-q·-m·eps·-f·`basename·"%o"`·"%i"·&&·/usr/bin/mv·-f·`basename·"%o"`·"%o"'·/>

The attached patch fixes this in debian/rules by passing arguments to
configure to use the paths in the non-usrmerge paths, as usrmerge
systems typically have compatibility symlinks, while non-usrmerge
systems do not.


This patch does not resolve all reproducibility issues, though the only
remaining issue is build paths, which is not tested in the "testing"
suite, so applying this patch should result in reproducible builds once
it migrates to "testing".


Thanks for maintaining graphicsmagick!


live well,
  vagrant
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