Bug#1137016: vnu: please make the build reproducible

[Chris Lamb]

Source: vnu
Version: 23.4.11+dfsg-3
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
vnu could not be built reproducibly.

This is because the date in the manual page could vary when built in a
different timezone. A patch is attached that renders this date in a fixed
timezone (UTC) instead.

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


Regards,

-- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      lamby at debian.org / chris-lamb.co.uk
       `-
-------------- next part --------------
--- a/debian/rules	2026-05-18 10:03:42.175988948 -0700
--- b/debian/rules	2026-05-18 10:12:48.263624390 -0700
@@ -88,7 +88,7 @@
 	for page in vnu vnu-client vnu-server; do \
 	  pandoc --standalone --from markdown -f markdown-smart --to man \
 	  -M title:"$${page}(1) $${page} $(DEB_VERSION_UPSTREAM)" \
-	  -M date:"$$(date -d'@$(SOURCE_DATE_EPOCH)' +%Y-%m-%d)" docs/$${page}.1.md > docs/$${page}.1 ; \
+	  -M date:"$$(date -u -d'@$(SOURCE_DATE_EPOCH)' +%Y-%m-%d)" docs/$${page}.1.md > docs/$${page}.1 ; \
 	done
 
 override_dh_auto_test-indep: