Source: authbind
Version: 3.0.3.5
Severity: wishlist
Tags: patch
User: reproducible-builds@lists.alioth.debian.org
Usertags: timestamps
X-Debbugs-Cc: reproducible-builds@lists.alioth.debian.org

Hi!

While working on the “reproducible builds” effort [1], we have noticed
that authbind could not be built reproducibly.

The attached patch sets the mtimes of all files which are modified
during the built to the date of the last changelog entry in order to
produce files with reproducible metadata.

Cheers,
akira

[1]: https://wiki.debian.org/ReproducibleBuilds

diff -Nru authbind-2.1.1/debian/changelog authbind-2.1.1+nmu1/debian/changelog
--- authbind-2.1.1/debian/changelog     2012-06-11 00:17:19.000000000 +0200
+++ authbind-2.1.1+nmu1/debian/changelog        2015-07-15 23:42:10.000000000 
+0200
@@ -1,3 +1,10 @@
+authbind (2.1.1+nmu1) UNRELEASED; urgency=medium
+
+  * Non-maintainer upload.
+  * Fix mtimes before building binary packages to produce reproducible output
+
+ -- akira <marival...@gmail.com>  Wed, 15 Jul 2015 23:40:51 +0200
+
 authbind (2.1.1) unstable; urgency=low
 
   * Manpage has an example of which files will be checked and read
diff -Nru authbind-2.1.1/debian/rules authbind-2.1.1+nmu1/debian/rules
--- authbind-2.1.1/debian/rules 2012-06-03 02:45:04.000000000 +0200
+++ authbind-2.1.1+nmu1/debian/rules    2015-07-15 23:37:33.000000000 +0200
@@ -29,6 +29,8 @@
 
 arch = $(shell dpkg --print-architecture)
 
+BUILD_DATE := $(shell dpkg-parsechangelog --show-field Date)
+
 INSTALL = install
 INSTALL_FILE    = $(INSTALL) -p    -o root -g root  -m  644
 INSTALL_PROGRAM = $(INSTALL) -p    -o root -g root  -m  755
@@ -90,6 +92,8 @@
        dpkg-gencontrol -isp
        chown -R root.root debian/tmp
        chmod -R g-ws debian/tmp
+       find debian/tmp -newermt '$(BUILD_DATE)' -print0 | \
+               xargs -0r touch --no-dereference --date='$(BUILD_DATE)'
        dpkg --build debian/tmp ..
 
 binary:         binary-indep binary-arch
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