Honor SOURCE_DATE_EPOCH variable to avoid non-determinism in generated
"autoloads" files.

--- a/lisp/emacs-lisp/autoload.el
+++ b/lisp/emacs-lisp/autoload.el
@@ -419,8 +419,12 @@
   ;;              nil t))
   ;;        (match-end 2))))
   (insert generate-autoload-section-header)
-  (prin1 `(autoloads ,autoloads ,load-name ,file ,time)
-	 outbuf)
+  (let* ((env  (getenv "SOURCE_DATE_EPOCH"))
+         (time (if env
+                   (seconds-to-time (string-to-number env))
+                 time)))
+    (prin1 `(autoloads ,autoloads ,load-name ,file ,time)
+           outbuf))
   (terpri outbuf)
   ;; Break that line at spaces, to avoid very long lines.
   ;; Make each sub-line into a comment.
.form.submit();'>
<option value='koszko' selected='selected'>koszko</option>
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<div class='path'>path: <a href='/guix/log/?id=d0308e68d6b26e95043415a3643adf15ae6725de'>root</a>/<a href='/guix/log/gnu?id=d0308e68d6b26e95043415a3643adf15ae6725de'>gnu</a>/<a href='/guix/log/gnu/services?id=d0308e68d6b26e95043415a3643adf15ae6725de'>services</a>/<a href='/guix/log/gnu/services/dbus.scm?id=d0308e68d6b26e95043415a3643adf15ae6725de'>dbus.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/gnu/services/dbus.scm?id=d0308e68d6b26e95043415a3643adf15ae6725de&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-12-22 18:33:07 -0500'>2021-12-22</span></td><td><a href='/guix/commit/gnu/services/dbus.scm?id=488f1c589df00e802163af534294d93372e5c025'>services: dbus: Wait 1 minute for elogind to get ready.</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes &lt;https://issues.guix.gnu.org/issue/52051&gt;.

* gnu/services/dbus.scm (dbus-configuration-directory): Set a 60 second
authentication timeout in the D-Bus configuration.
</span></span></td><td>Timothy Sample</td></tr>
<tr><td><span title='2021-12-05 19:17:41 +0100'>2021-12-05</span></td><td><a href='/guix/commit/gnu/services/dbus.scm?id=9bc0f45df5d6aed217020b1183dca54989844fb0'>Merge remote-tracking branch 'origin/master' into core-updates-frozen</a></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2021-11-30 01:08:55 +0100'>2021-11-30</span></td><td><a href='/guix/commit/gnu/services/dbus.scm?id=892f1b7273d57b25940700877a02618fe826cc08'>services: Accept &lt;inferior-package&gt;s in lieu of &lt;package&gt;s.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/authentication.scm (fprintd-configuration)
(nslcd-configuration): Substitute file-like objects for package ones.
* gnu/services/cgit.scm (cgit-configuration, opaque-cgit-configuration):
Likewise.
* gnu/services/cups.scm (package-list?, cups-configuration): Likewise.
* gnu/services/dns.scm (verify-knot-configuration)
(ddclient-configuration): Likewise.
* gnu/services/docker.scm (docker-configuration): Likewise.
* gnu/services/file-sharing.scm (transmission-daemon-configuration): Likewise.
* gnu/services/getmail.scm (getmail-configuration): Likewise.
* gnu/services/mail.scm (dovecot-configuration)
(opaque-dovecot-configuration): Likewise.
* gnu/services/messaging.scm (prosody-configuration)
(opaque-prosody-configuration): Likewise.
* gnu/services/monitoring.scm (zabbix-server-configuration)
(zabbix-agent-configuration): Likewise.
* gnu/services/networking.scm (opendht-configuration): Likewise.
* gnu/services/pm.scm (tlp-configuration): Likewise.
* gnu/services/telephony.scm (jami-configuration): Likewise.
* gnu/services/virtualization.scm (libvirt-configuration)
(qemu-guest-agent-configuration): Likewise.
* gnu/services/vpn.scm (openvpn-client-configuration): Likewise.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2021-11-27 23:06:17 +0100'>2021-11-27</span></td><td><a href='/guix/commit/gnu/services/dbus.scm?id=72b0c5a3f221afb824772c4969e85d190a8a3205'>services: polkit: Choose between polkit-mozjs and polkit-duktape.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/dbus.scm (%default-polkit): New variable.
(&lt;polkit-configuration&gt;)[polkit]: Default to it.
</span></span></td><td>Ludovic Courtès</td></tr>