SPDX-FileCopyrightText: 2026 Samuel Tyler <fosslinux@aussies.space>

SPDX-License-Identifier: Apache-2.0

Make the output of mkerr.pl reproducible.

Now the year in the copyright header depends firstly on SOURCE_DATE_EPOCH,
or if that is not set, the mtime of the config file.

--- openssl-3.6.0/util/mkerr.pl	2025-10-01 22:11:48.000000000 +1000
+++ openssl-3.6.0/util/mkerr.pl 2026-01-01 17:18:06.853472915 +1100
@@ -26,7 +26,7 @@
 my %modules         = ();
 
 my $errors       = 0;
-my @t            = localtime();
+my @t            = gmtime($ENV{SOURCE_DATE_EPOCH} || (stat($config))[9]);
 my $YEAR         = $t[5] + 1900;
 
 sub phase