[dpkg] 08/200: build: Use deterministic dates for generated man pages

[Ximin Luo]

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commit f3b7b1c9683b68066c11b32a0a839293d4a32636
Author: Reiner Herrmann <reiner at reiner-h.de>
Date:   Sun Nov 6 23:46:12 2016 +0100

    build: Use deterministic dates for generated man pages
    
    Pin the timezone to UTC so that the computed dates are deterministic
    and produce deterministic generated man pages.
    
    Closes: #843469
    Signed-off-by: Guillem Jover <guillem at debian.org>
---
 debian/changelog | 3 +++
 m4/dpkg-build.m4 | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/debian/changelog b/debian/changelog
index 825b015..1b0b686 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -7,6 +7,9 @@ dpkg (1.18.13) UNRELEASED; urgency=medium
     - Add missing Breaks on old libdpkg-perl to dpkg. Closes: #843429
       Thanks to Sven Joachim <svenjoac at gmx.de>.
     - Ship deb-src-files(5) man page in dpkg-dev.
+  * Build system:
+    - Use deterministic dates for generated man pages. Closes: #843469
+      Thanks to Reiner Herrmann <reiner at reiner-h.de>.
 
  -- Guillem Jover <guillem at debian.org>  Sun, 06 Nov 2016 06:28:11 +0100
 
diff --git a/m4/dpkg-build.m4 b/m4/dpkg-build.m4
index afb2a7d..b970063 100644
--- a/m4/dpkg-build.m4
+++ b/m4/dpkg-build.m4
@@ -14,7 +14,7 @@ AC_DEFUN([DPKG_BUILD_SHARED_LIBS], [
 # -----------------------
 AC_DEFUN([DPKG_BUILD_RELEASE_DATE], [
   TIMESTAMP=$(PERL=$PERL $srcdir/run-script scripts/dpkg-parsechangelog.pl -l$srcdir/debian/changelog -STimestamp)
-  PACKAGE_RELEASE_DATE=$(date --date="@$TIMESTAMP" +%Y-%m-%d)
+  PACKAGE_RELEASE_DATE=$(date --utc --date="@$TIMESTAMP" +%Y-%m-%d)
   AC_SUBST([PACKAGE_RELEASE_DATE])
 ])# DPKG_BUILD_RELEASE_DATE
 

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