This patch adds an include needed since icu59:
Source: https://git.archlinux.org/svntogit/community.git/plain/trunk/icu59.patch?h=packages/aegisub
--- aegisub-3.2.2/src/utils.cpp	2014-12-08 02:07:09.000000000 +0200
+++ aegisub-3.2.2/src/utils.cpp	2017-04-26 11:11:15.438239182 +0300
@@ -44,6 +44,7 @@
 #include <boost/filesystem/path.hpp>
 #include <map>
 #include <unicode/locid.h>
+#include <unicode/unistr.h>
 #include <wx/clipbrd.h>
 #include <wx/filedlg.h>
 #include <wx/stdpaths.h>
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<tr><td><span title='2022-01-24 12:15:29 +0100'>2022-01-24</span></td><td><a href='/guix/commit/gnu/packages/patches/xgboost-use-system-dmlc-core.patch?id=c30fa177f3717094e72c01ebba330b638a5e6e65'>gnu: xgboost: Update to 1.5.2.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/machine-learning.scm (xgboost, python-xgboost): Update to
1.5.2.
(python-xgboost)[arguments]: Enable previously failing test.
* gnu/packages/patches/xgboost-use-system-dmlc-core.patch: Update patch.

Signed-off-by: Ricardo Wurmus &lt;rekado@elephly.net&gt;
</span></span></td><td>Vinicius Monego</td></tr>