Bug#1142513: barvinok: patch to make the build reproducible

[Jochen Sprickerhof]

Source: barvinok
Version: 0.41.9+ds-2
Severity: normal
Tags: patch
X-Debbugs-Cc: reproducible-bugs at lists.alioth.debian.org
User: reproducible-builds at lists.alioth.debian.org
Usertags: timestamps

Hi,

barvinok could not be built reproducibly:

https://reproduce.debian.net/i386/unstable.html#barvinok

This is because the LaTeX-based documentation includes the current
build date. Adding

export FORCE_SOURCE_DATE=1

at the top of debian/rules makes the package reproducible

Cheers Jochen