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='2023-06-15 13:19:29 +0400'>2023-06-15</span></td><td><a href='/guix/commit/gnu/home/services/xdg.scm?id=f74df2ab879fc5457982bbc85b7455a90e82317d'>home: services: xdg-base-directories: Deprecate XDG_LOG_HOME.</a><span class='msg-avail'>...</span></td><td>Bruno Victal</td></tr>
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<tr><td><span title='2022-12-19 15:11:40 +0400'>2022-12-19</span></td><td><a href='/guix/commit/gnu/home/services/xdg.scm?id=77ef82ce93e088e3d810b394b7cacd33f0d2de85'>home: xdg: Make it possible to extend user-directories service.</a><span class='msg-avail'>...</span></td><td>Andrew Tropin</td></tr>
<tr><td><span title='2022-12-02 00:02:13 +0100'>2022-12-02</span></td><td><a href='/guix/commit/gnu/home/services/xdg.scm?id=4c8eea027a60d0be345770333dfda4c0d6230247'>home: services: Use 'match-record' instead of 'match'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-12-01 18:56:23 +0400'>2022-12-01</span></td><td><a href='/guix/commit/gnu/home/services/xdg.scm?id=7dddf0cc54b02dfa37884bee49a20eb88a420cba'>home: xdg: Export xdg-base/user-directories getters.</a><span class='msg-avail'>...</span></td><td>Andrew Tropin</td></tr>
<tr><td><span title='2022-08-05 15:28:02 +0200'>2022-08-05</span></td><td><a href='/guix/commit/gnu/home/services/xdg.scm?id=b57c656f72cee42ebbd78fe2267689aecfbd970e'>home: xdg: Skip mkdir XDG_RUNTIME_DIR in activation script.</a><span class='msg-avail'>...</span></td><td>Andrew Tropin</td></tr>
<tr><td><span title='2022-08-05 15:28:02 +0200'>2022-08-05</span></td><td><a href='/guix/commit/gnu/home/services/xdg.scm?id=a80edc0d82c104d22607da5c44225d9105c3e1cf'>home: xdg: Use a single @ instead of @@.</a><span class='msg-avail'>...</span></td><td>Andrew Tropin</td></tr>
<tr><td><span title='2022-04-08 20:13:48 +0200'>2022-04-08</span></td><td><a href='/guix/commit/gnu/home/services/xdg.scm?id=20645d8467852990413c1ea9cf81cec82d23defd'>home: Add home-xdg-data-files-service-type.</a><span class='msg-avail'>...</span></td><td>Andrew Tropin</td></tr>
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<tr><td><span title='2022-03-01 12:33:07 +0100'>2022-03-01</span></td><td><a href='/guix/commit/gnu/home/services/xdg.scm?id=60c45fd9fd1732b3905a0c3a134878e24592c4b5'>home: xdg: Fix xdg-desktop-entry config field serialization.</a><span class='msg-avail'>...</span></td><td>Andrew Tropin</td></tr>
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<tr><td><span title='2021-10-09 19:24:18 +0300'>2021-10-09</span></td><td><a href='/guix/commit/gnu/home/services/xdg.scm?id=0e8d2df0f1a4ab25c482e1c427c54e19903e62f3'>Move (gnu home-services) to (gnu home services).</a><span class='msg-avail'>...</span></td><td>Oleg Pykhalov</td></tr>
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