From <https://bugs.debian.org/801523>.

From c01f602d1926b0671fd2c8d91f7e52c4e4c9fb24 Mon Sep 17 00:00:00 2001
From: Niko Tyni <ntyni@debian.org>
Date: Sun, 11 Oct 2015 19:27:56 +0300
Subject: [PATCH] Sort the list of XS code files when generating RealPPPort.xs

all_files_in_dir() uses readdir() ordering to make the list of
input files. This can vary between build systems, breaking build
reproducibility.
---
 cpan/Devel-PPPort/PPPort_xs.PL | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dist/Devel-PPPort/PPPort_xs.PL b/dist/Devel-PPPort/PPPort_xs.PL
index 5f18940..149f2fe 100644
--- a/dist/Devel-PPPort/PPPort_xs.PL
+++ b/dist/Devel-PPPort/PPPort_xs.PL
@@ -38,7 +38,7 @@ END
 my $file;
 my $sec;
 
-for $file (all_files_in_dir('parts/inc')) {
+for $file (sort(all_files_in_dir('parts/inc'))) {
   my $spec = parse_partspec($file);
 
   my $msg = 0;
-- 
2.5.1
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<div class='path'>path: <a href='/guix/log/?id=412d99a657ba0974a60dbfaf46ba807da7a3589e'>root</a>/<a href='/guix/log/tests?id=412d99a657ba0974a60dbfaf46ba807da7a3589e'>tests</a>/<a href='/guix/log/tests/substitute.scm?id=412d99a657ba0974a60dbfaf46ba807da7a3589e'>substitute.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/tests/substitute.scm?id=412d99a657ba0974a60dbfaf46ba807da7a3589e&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2023-12-04 22:26:36 +0100'>2023-12-04</span></td><td><a href='/guix/commit/tests/substitute.scm?id=06b9c1260c72935806957bf302c40c1db6101a63'>substitute: Do not exit when failing to find a nar.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2023-06-08 22:54:58 +0200'>2023-06-08</span></td><td><a href='/guix/commit/tests/substitute.scm?id=885d524f79aa4bbfac5dfebf285e1e248184ee70'>substitute: Gracefully retry after failed partial downloads.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2023-05-30 00:15:29 +0200'>2023-05-30</span></td><td><a href='/guix/commit/tests/substitute.scm?id=8af9a2aa5fa2fa5b00234c1cbe12e9aff60888a0'>substitute: If a server's nar URL is 404, try the next one(s).</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-09-28 22:28:27 +0200'>2022-09-28</span></td><td><a href='/guix/commit/tests/substitute.scm?id=8bd4126917f59f4af9a4323c3d5699201862dca2'>substitute: Retry downloading when a nar is unavailable.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-09-24 17:59:04 +0200'>2022-09-24</span></td><td><a href='/guix/commit/tests/substitute.scm?id=08023bcab35faafcf3e9c77babe910d9ece240d2'>substitute: Test behavior with unroutable substitute server addresses.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-02-14 11:23:56 +0100'>2022-02-14</span></td><td><a href='/guix/commit/tests/substitute.scm?id=6adce1538d2df6fa2d68abc13ae94e2fa826d124'>publish: Do not sign the URL/Compression/FileSize narinfo fields.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>