From 9229ed30103df59a4f989ca0235b0d1026bf6e1c Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@gmail.com>
Date: Sun, 12 Feb 2023 04:47:38 +0200
Subject: [PATCH] Avoid another -Wmaybe-uninitialized under GCC 11/12

---
 include/boost/function/function_template.hpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/boost/function/function_template.hpp b/include/boost/function/function_template.hpp
index dcfc8f0..bd0ce79 100644
--- a/include/boost/function/function_template.hpp
+++ b/include/boost/function/function_template.hpp
@@ -501,8 +501,16 @@ namespace boost {
 
         void clear(function_buffer& functor) const
         {
+#if defined(BOOST_GCC) && (__GNUC__ >= 11)
+# pragma GCC diagnostic push
+// False positive in GCC 11/12 for empty function objects
+# pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
+#endif
           if (base.manager)
             base.manager(functor, functor, destroy_functor_tag);
+#if defined(BOOST_GCC) && (__GNUC__ >= 11)
+# pragma GCC diagnostic pop
+#endif
         }
 
       private: