From 921c2d503a63f4769fdf1c7e6eb31be2706f9bea Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 15 Oct 2020 14:20:44 +0200
Subject: Add ability to specify fallback value for NULL substitutions with
 in.null

---
 libbuild2/version/rule.hxx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'libbuild2/version/rule.hxx')

diff --git a/libbuild2/version/rule.hxx b/libbuild2/version/rule.hxx
index f9e7655..ddc5e11 100644
--- a/libbuild2/version/rule.hxx
+++ b/libbuild2/version/rule.hxx
@@ -29,7 +29,8 @@ namespace build2
       lookup (const location&,
               action,
               const target&,
-              const string&) const override;
+              const string&,
+              const optional<string>&) const override;
     };
 
     // Pre-process manifest before installation to patch in the version.
-- 
cgit v1.1