Bug#1010830: gscanbus: reproducible-builds: embedded build paths in /usr/bin/gscanbus

[Vagrant Cascadian]

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

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

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

  /build/1st/gscanbus-0.8/gscanbus.c:973
  vs.
  /build/2/gscanbus-0.8/2nd/gscanbus.c:973

The attached patch fixes this by updating to use debhelper compat level
13, which passes the default CFLAGS from dpkg-buildflags

The default CFLAGS include the -ffile-prefix-map argument which is used
to avoid embedding the absolute path in compiled files.


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


live well,
  vagrant
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