$NetBSD: patch-src_system.hh.in,v 1.1 2024/04/21 16:59:09 adam Exp $

Fix build with newer boost.

--- src/system.hh.in.orig	2020-05-18 05:30:10.000000000 +0000
+++ src/system.hh.in
@@ -142,7 +142,7 @@
 #include <boost/date_time/posix_time/posix_time_io.hpp>
 #include <boost/date_time/gregorian/gregorian_io.hpp>
 
-#include <boost/filesystem/convenience.hpp>
+#include <boost/filesystem/directory.hpp>
 #include <boost/filesystem/exception.hpp>
 #include <boost/filesystem/fstream.hpp>
 #include <boost/filesystem/operations.hpp>