branch core-updates updated: packages: 'patch-and-repack' sets the mtime to 1, not 0.

[guix-commits]

This is an automated email from the git hooks/post-receive script.

civodul pushed a commit to branch core-updates
in repository guix.

The following commit(s) were added to refs/heads/core-updates by this push:
     new 36930b2  packages: 'patch-and-repack' sets the mtime to 1, not 0.
36930b2 is described below

commit 36930b2463fc933e7c5580f49413dbd14cf1df48
Author: Ludovic Courtès <address@hidden>
AuthorDate: Fri Jan 17 21:21:07 2020 +0100

    packages: 'patch-and-repack' sets the mtime to 1, not 0.
    
    * guix/packages.scm (patch-and-repack)[build]: Pass "--mtime=@1" instead
    of "--mtime=@0".
---
 guix/packages.scm | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/guix/packages.scm b/guix/packages.scm
index 5ecb97f..d925e75 100644
--- a/guix/packages.scm
+++ b/guix/packages.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès 
<address@hidden>
+;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic 
Courtès <address@hidden>
 ;;; Copyright © 2014, 2015, 2017, 2018 Mark H Weaver <address@hidden>
 ;;; Copyright © 2015 Eric Bavier <address@hidden>
 ;;; Copyright © 2016 Alex Kost <address@hidden>
@@ -637,8 +637,10 @@ specifies modules in scope when evaluating SNIPPET."
               (apply invoke
                      (string-append #+tar "/bin/tar")
                      "cvfa" #$output
-                     ;; avoid non-determinism in the archive
-                     "--mtime=@0"
+                     ;; Avoid non-determinism in the archive.  Set the mtime
+                     ;; to 1 as is the case in the store (software like gzip
+                     ;; behaves differently when it stumbles upon mtime = 0).
+                     "--mtime=@1"
                      "--owner=root:0"
                      "--group=root:0"
                      (if tar-supports-sort?