From 0aa7a94e1032a96a2a72cb6a82824f9fe970d412 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 14 Dec 2022 14:18:44 +0200
Subject: Improve empty simple value to empty list of names reduction
 heuristics

Specifically, do not reduce typed RHS empty simple values for prepend/append
and additionally for assignment provided LHS is typed and is a container.
---
 libbuild2/functions-regex.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'libbuild2/functions-regex.cxx')

diff --git a/libbuild2/functions-regex.cxx b/libbuild2/functions-regex.cxx
index ca7e229..922be18 100644
--- a/libbuild2/functions-regex.cxx
+++ b/libbuild2/functions-regex.cxx
@@ -21,7 +21,7 @@ namespace build2
     // Optimize for the string value type.
     //
     if (v.type != &value_traits<string>::value_type)
-      untypify (v);
+      untypify (v, true /* reduce */);
 
     return convert<string> (move (v));
   }
-- 
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