Bug#1010781: ragel: reproducible-builds: embedded build paths in /usr/bin/ragel

[Vagrant Cascadian]

Source: ragel
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/ragel:

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

  /build/1st/ragel-6.10/ragel/main.cpp:462
  vs.
  /build/2/ragel-6.10/2nd/ragel/main.cpp:462


The attached patch to debian/rules fixes this by also setting CXXFLAGS
and passing it to configure.

Alternately, updating the packaging to use dh/debhelper at a recent
compat level would also likely fix this, or passing
-ffile-prefix-map=$(CURDIR)=. in CFLAGS and CXXFLAGS.


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


live well,
  vagrant
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