From 7ab5526b3b669291b1a06b1d9c9cf651908a3457 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 6 Sep 2023 16:26:21 +0200
Subject: Don't crash if config.report.variable names undefined variable

---
 libbuild2/file.cxx | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libbuild2/file.cxx b/libbuild2/file.cxx
index 87658dd..2a09aea 100644
--- a/libbuild2/file.cxx
+++ b/libbuild2/file.cxx
@@ -1716,10 +1716,10 @@ namespace build2
 
         dr << "\n  ";
 
-        if (const value& v = *l)
+        if (l)
         {
           storage.clear ();
-          auto ns (reverse (v, storage, true /* reduce */));
+          auto ns (reverse (*l, storage, true /* reduce */));
 
           if (f == "multiline")
           {
-- 
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