Bug#1020757: rig: reproducible-builds: Embedded build path in /usr/bin/rig

[Vagrant Cascadian]

Source: rig
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/rig:

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

  /build/1st/rig-1.11/rig.cc:303
  vs.
  /build/2/rig-1.11/2nd/rig.cc:303

The attached patch to the upstream Makefile fixes this by passing
-ffile-prefix-map argument to the CXX call.

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

Thanks for maintaining rig!

live well,
  vagrant
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