The file $(top_srcdir)/gtk-doc.make doesn't exist, so don't include it.

--- a/doc/Makefile.in	2007-04-08 20:17:25.000000000 +0200
+++ b/doc/Makefile.in	2014-09-06 23:19:41.413397662 +0200
@@ -240,9 +240,6 @@
 distclean-generic clean-generic maintainer-clean-generic clean \
 mostlyclean distclean maintainer-clean
 
-
-include $(top_srcdir)/gtk-doc.make
-
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.
 .NOEXPORT:
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<tr><td><span title='2022-08-26 18:50:33 +0200'>2022-08-26</span></td><td><a href='/guix/commit/gnu/tests/desktop.scm?id=cac3914dfc354eb31c09958c6bc047adad682ea0'>gnu: greetd-service-type: Add supplementary groups to greeter.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/base.scm (&lt;greetd-configuration&gt;)
[greeter-supplementary-groups]: New field.
(%greetd-accounts): Rename to...
(greetd-accounts): ... this.  Convert to a function that takes a config
argument.  Use greeter-supplementary-groups.
(greetd-service-type): Adjust accordingly.
* gnu/tests/desktop.scm (%minimal-services): Add test for
greeter-supplementary-groups.
* doc/guix.texi ("Base Services")[greetd-service-type]: Document
greeter-supplementary-groups.
</span></span></td><td>muradm</td></tr>
<tr><td><span title='2022-08-26 18:48:37 +0200'>2022-08-26</span></td><td><a href='/guix/commit/gnu/tests/desktop.scm?id=d1815a68ea48b0015d1beda423d4b2879d29d9ea'>gnu: seatd-service-type: Use seat group.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/desktop.scm (seatd-group-sanitizer): New variable.
(&lt;seatd-configuration&gt;)[user]: Removed field.
[group]: Changed to "seat".  Sanitize via seatd-group-sanitizer.
(seatd-accounts): New variable.
(seatd-environment): Adjust to &lt;seatd-configuration&gt; ABI.
(seatd-service-type)[extensions]: Add account-service-type with seatd-accounts.
* gnu/tests/desktop.scm (run-minimal-desktop-test): Check for correct
ownership of $SEATD_SOCK.
* doc/guix.texi ("Desktop Services")[seatd-service-type]: Mention that users
may need to become members of the "seat" group.
Update default value for group field.
Add explanation on seatd.sock file.
Remove dropped user field.
</span></span></td><td>muradm</td></tr>
<tr><td><span title='2022-06-17 10:30:44 +0200'>2022-06-17</span></td><td><a href='/guix/commit/gnu/tests/desktop.scm?id=d6bd483cd53cedc8da39fcc6c419f7241080ed21'>gnu: tests: Add seatd/greetd based minimal desktop system tests.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/tests/desktop.scm (minimal-desktop): seatd/greetd based
minimal desktop test

Signed-off-by: Lars-Dominik Braun &lt;ldb@leibniz-psychology.org&gt;
</span></span></td><td>muradm</td></tr>