Bug#1067218: gretl: please make the build reproducible

[Chris Lamb]

Source: gretl
Version: 2023c-2.1
Severity: wishlist
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: timestamps
X-Debbugs-Cc: reproducible-bugs at lists.alioth.debian.org

Hi,

Whilst working on the Reproducible Builds effort [0], we noticed that
gretl could not be built reproducibly.

This is because the PDF documentation embeds the current date via TeX's
\today (etc.). A patch is attached that uses FORCE_SOURCE_DATE to request
that TeX sources the current date from SOURCE_DATE_EPOCH instead of the
system clock.

 [0] https://reproducible-builds.org/


Regards,

-- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      lamby at debian.org / chris-lamb.co.uk
       `-
-------------- next part --------------
--- a/debian/rules	2024-03-20 10:22:09.435742379 +0000
--- b/debian/rules	2024-03-20 10:41:22.804750818 +0000
@@ -24,6 +24,9 @@
 cflags	= -O0 -g0 -Wall
 endif
 
+# Request that TeX seed the \today (etc.) from SOURCE_DATE_EPOCH
+export FORCE_SOURCE_DATE = 1
+
 #export DH_VERBOSE=1
 
 upstream: get-orig-source