patches: matplotlib: increase threading test timeout

Signed-off-by: Trevor Gamblin <tgamblin@baylibre.com>

Author: threexc

patches/matplotlib/3.11.0/0001-tests-test_font_manager-increase-test_fontcache_thre.patch

@@ -0,0 +1,34 @@
+From a830afe01625f10e11640e2b2c3f3d88b2c16b36 Mon Sep 17 00:00:00 2001
+From: Trevor Gamblin <tgamblin@baylibre.com>
+Date: Tue, 21 Jul 2026 11:25:31 -0400
+Subject: [PATCH] tests: test_font_manager: increase test_fontcache_thread_safe
+ timeout
+
+This test seems to pass in a local riscv64 container, but fails when run
+on the native runners. It's a single threading test with a 10s timeout,
+so double that timeout for our builds. For now this should be considered
+inappropriate for upstream until we see the failure on their end too.
+
+Upstream-Status: Inappropriate [native runner specific]
+
+Signed-off-by: Trevor Gamblin <tgamblin@baylibre.com>
+---
+ lib/matplotlib/tests/test_font_manager.py | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/lib/matplotlib/tests/test_font_manager.py b/lib/matplotlib/tests/test_font_manager.py
+index add063df90..f3a9d57039 100644
+--- a/lib/matplotlib/tests/test_font_manager.py
++++ b/lib/matplotlib/tests/test_font_manager.py
+@@ -344,7 +344,7 @@ def _test_threading():
+ def test_fontcache_thread_safe():
+     pytest.importorskip('threading')
+ 
+-    subprocess_run_helper(_test_threading, timeout=10)
++    subprocess_run_helper(_test_threading, timeout=20)
+ 
+ 
+ def test_lockfilefailure(tmp_path):
+-- 
+2.55.0
+