This change silences the warning when compiling Boost.accumulators
with GCC 13. as some projects using Boost.Accumulators are compiled
with -Werror. Without this change, these project would have to disable
-Wuninitialized warning or silence it temporarily when including
the offending headers. Neither of these two solution is ideal from
a developer's perspective. so let's apply the patch when packaging
Boost. The patch was included by Boost 1.83.
Signed-off-by: Kefu Chai <tchaikov@gmail.com>
