From f1b3c0e86daec1f5b7ed81a60edbe548fcbb5f42 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 5 Jan 2018 16:17:10 +0200
Subject: Work around bogus ubsan report

---
 build2/diagnostics.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'build2/diagnostics.cxx')

diff --git a/build2/diagnostics.cxx b/build2/diagnostics.cxx
index b1f2796..f04751c 100644
--- a/build2/diagnostics.cxx
+++ b/build2/diagnostics.cxx
@@ -40,7 +40,7 @@ namespace build2
 #else
   __thread
 #endif
-  const diag_frame* diag_frame::stack;
+  const diag_frame* diag_frame::stack = nullptr;
 
   // Diagnostic facility, project specifics.
   //
-- 
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