$NetBSD: patch-lib_dpkg_libdpkg.map,v 1.1 2020/05/22 01:24:36 joerg Exp $

--- lib/dpkg/libdpkg.map.orig	2020-05-22 00:11:43.620737999 +0000
+++ lib/dpkg/libdpkg.map
@@ -353,6 +353,7 @@ LIBDPKG_PRIVATE {
 	pkg_format_parse;
 	pkg_format_show;
 	pkg_format_free;
+	pkg_format_needs_db_fsys;
 
 	# Package specifiers
 	pkg_spec_is_illegal;