Re: master 20fa40d: Improve doc for web pages; reproducible tarballs

[Paul Eggert <eggert@cs.ucla.edu>]

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Glenn Morris wrote:
> This breaks make-dist on platforms where tar does not support --sort=name.

Thanks for reporting that. I installed the attached, which I hope fixes it.

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From 69e3af0f6df4093c3e587261dbee64c3f749d47f Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Sun, 1 Apr 2018 13:53:15 -0700
Subject: [PATCH] Port make-dist to tar 1.27 and earlier

Problem reported by Glenn Morris in:
https://lists.gnu.org/r/emacs-devel/2018-03/msg00984.html
* make-dist: Use --sort=name only if Tar supports it.
---
 admin/make-tarball.txt | 3 ++-
 make-dist              | 4 +++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/admin/make-tarball.txt b/admin/make-tarball.txt
index bdf7b8c..f9ad217 100644
--- a/admin/make-tarball.txt
+++ b/admin/make-tarball.txt
@@ -210,7 +210,8 @@ longer present.
 
 Tar up the generated html_node/emacs/ and elisp/ directories and update
 the files manual/elisp.html_node.tar.gz and emacs.html_node.tar.gz.
-Use GNU Tar as follows so that the tarballs are reproducible:
+Use GNU Tar 1.28 or later so that the tarballs are more reproducible,
+as follows:
 
   cd manual
   tar='tar --numeric-owner --owner=0 --group=0 --mode=go+u,go-w --sort=name'
diff --git a/make-dist b/make-dist
index 48c7fb4..d651e18 100755
--- a/make-dist
+++ b/make-dist
@@ -643,7 +643,9 @@ files=
        *)  gzip_extension= ;;
   esac
   echo "Creating tar file"
-  taropt='--numeric-owner --owner=0 --group=0 --mode=go+u,go-w --sort=name'
+  taropt='--numeric-owner --owner=0 --group=0 --mode=go+u,go-w'
+  tar --sort=name -cf /dev/null $tempparent/$emacsname/src/lisp.h 2>/tmp/out &&
+    taropt="$taropt --sort=name"
   [ "$verbose" = "yes" ] && taropt="$taropt --verbose"
 
   (cd ${tempparent} ; tar $taropt -cf - ${emacsname} ) \
-- 
2.7.4