File meson-gcc-leap16.0-workaround.patch of Package wayback

diff --git a/meson.build b/meson.build
index be3b0e2fc62f..d7dbc43414cb 100644
--- a/meson.build
+++ b/meson.build
@@ -3,7 +3,7 @@ project('wayback', 'c',
   license: 'MIT',
   meson_version: '>= 1.4.0',
   default_options: [
-    'c_std=gnu23',
+    'c_std=gnu2x',
     'warning_level=3',
   ])