Source: libgpg-error Version: 1.16-1 Severity: wishlist Tags: patch User: reproducible-bui...@lists.alioth.debian.org Usertag: timestamps
Hi! As part of the “reproducible builds” effort [1], it was detected that libgpg-error could not be built reproducibly. The build process capture the time of the build. This piece of information is not really helpful to anyone and prevents the build process from being deterministic. The attached patch will instead use the time of the latest debian/changelog entry. Once applied, libgpg-error can be built reproducibly! :) [1]: https://wiki.debian.org/ReproducibleBuilds -- Lunar .''`. lu...@debian.org : :Ⓐ : # apt-get install anarchism `. `'` `-
diff -Nru libgpg-error-1.16/debian/changelog libgpg-error-1.16/debian/changelog
--- libgpg-error-1.16/debian/changelog 2014-09-18 16:57:20.000000000 +0200
+++ libgpg-error-1.16/debian/changelog 2014-09-21 22:37:47.000000000 +0200
@@ -1,3 +1,10 @@
+libgpg-error (1.16-1.0~reproducible1) UNRELEASED; urgency=low
+
+ * Use latest entry of debian/changelog as build timestamp in order
+ to get reproducible builds.
+
+ -- Jérémy Bobbio <lu...@debian.org> Sun, 21 Sep 2014 20:37:15 +0000
+
libgpg-error (1.16-1) unstable; urgency=medium
* New upstream release
diff -Nru libgpg-error-1.16/debian/patches/series libgpg-error-1.16/debian/patches/series
--- libgpg-error-1.16/debian/patches/series 1970-01-01 01:00:00.000000000 +0100
+++ libgpg-error-1.16/debian/patches/series 2014-09-21 22:36:52.000000000 +0200
@@ -0,0 +1 @@
+use-debian-changelog-date-as-timestamp.diff
diff -Nru libgpg-error-1.16/debian/patches/use-debian-changelog-date-as-timestamp.diff libgpg-error-1.16/debian/patches/use-debian-changelog-date-as-timestamp.diff
--- libgpg-error-1.16/debian/patches/use-debian-changelog-date-as-timestamp.diff 1970-01-01 01:00:00.000000000 +0100
+++ libgpg-error-1.16/debian/patches/use-debian-changelog-date-as-timestamp.diff 2014-09-21 22:36:29.000000000 +0200
@@ -0,0 +1,17 @@
+Description: Use latest entry of debian/changelog as build timestamp
+ In order to make the build reproducible, we use the time of the latest
+ entry in debian/changelog as the build timestamp.
+Author: Jérémy Bobbio <lu...@debian.org>
+Last-Update: 2014-09-21
+
+--- libgpg-error-1.16.orig/configure.ac
++++ libgpg-error-1.16/configure.ac
+@@ -484,7 +484,7 @@ changequote([,])dnl
+ BUILD_FILEVERSION="${BUILD_FILEVERSION}0,mym4_revision_dec"
+ AC_SUBST(BUILD_FILEVERSION)
+
+-BUILD_TIMESTAMP=`date -u +%Y-%m-%dT%H:%M+0000 2>/dev/null || date`
++BUILD_TIMESTAMP=`date --date="$(dpkg-parsechangelog -SDate)" -u +%Y-%m-%dT%H:%M+0000 2>/dev/null || date`
+ AC_SUBST(BUILD_TIMESTAMP)
+ AC_DEFINE_UNQUOTED(BUILD_TIMESTAMP, "$BUILD_TIMESTAMP",
+ [The time this package was configured for a build])
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