Taken from: https://gitweb.gentoo.org/repo/gentoo.git/tree/x11-libs/agg/files/agg-2.5-gcc8.patch.

diff -uprN agg-2.5/include/agg_renderer_outline_aa.h agg-2.5-fixed/include/agg_renderer_outline_aa.h
--- agg-2.5/include/agg_renderer_outline_aa.h	2018-08-25 02:02:52.507254241 +0800
+++ agg-2.5-fixed/include/agg_renderer_outline_aa.h	2018-08-25 02:04:15.291175316 +0800
@@ -1375,7 +1375,7 @@ namespace agg
         //---------------------------------------------------------------------
         void profile(const line_profile_aa& prof) { m_profile = &prof; }
         const line_profile_aa& profile() const { return *m_profile; }
-        line_profile_aa& profile() { return *m_profile; }
+        const line_profile_aa& profile() { return *m_profile; }
 
         //---------------------------------------------------------------------
         int subpixel_width() const { return m_profile->subpixel_width(); }
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<tr><td><span title='2023-10-16 11:16:01 -0400'>2023-10-16</span></td><td><a href='/guix/commit/gnu/packages/patches/qtbase-5-use-TZDIR.patch?id=6b8e35ce23d6fc1aa4525005063345d221b42730'>gnu: qtbase: Reinstate date related tests.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/qt.scm (qtbase) [native-inputs]: Add tzdata-for-tests.
[arguments]: Set the TZDIR and TZ environment variables, and reinstate the
tst_qdate, tst_qtimezone and tst_qdatetime tests in the check phase.
(qtbase-5) [source]: Replace qtbase-use-TZDIR.patch with
qtbase-5-use-TZDIR.patch.
* gnu/packages/patches/qtbase-use-TZDIR.patch: Refresh patch with upstream
version, and preserve the old one for qtbase@5 as...
* gnu/packages/patches/qtbase-5-use-TZDIR.patch: ... this.
* gnu/local.mk (dist_patch_DATA): Register new patch.

Series-changes: 2
- Use old TZDIR patch for qtbase@5 (the new one doesn't apply)
</span></span></td><td>Maxim Cournoyer</td></tr>