Bug#1028051: unifrac-tools: please make the build reproducible

[Chris Lamb]

Source: unifrac-tools
Version: 1.2-1
Severity: wishlist
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: buildpath
X-Debbugs-Cc: reproducible-bugs at lists.alioth.debian.org

Hi,

Whilst working on the Reproducible Builds effort [0] we noticed that
unifrac-tools could not be built reproducibly.

This is because upstream's Makefile does not use the contents of
CFLAGS from dpkg-buildflags so it misses the reproducibility-related
compiler flags (and likely others).

Proof of concept patch attached.

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


Regards,

-- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      lamby at debian.org / chris-lamb.co.uk
       `-
-------------- next part --------------
--- a/debian/rules	2023-01-06 10:46:40.635033129 +0000
--- b/debian/rules	2023-01-06 10:55:34.858553266 +0000
@@ -4,7 +4,8 @@
 export DEB_BUILD_MAINT_OPTIONS=hardening=+all
 export PYBUILD_NAME=unifrac
 
-export DEB_BUILD_MAINT_OPTIONS=hardening=+all
+export CPPFLAGS := $(CFLAGS) $(CPPFLAGS)
+
 
 %:
 	dh $@ --no-parallel