From 459228c4c577be5b58e6e09ddc9404b07c12aee6 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 2 Feb 2022 15:13:26 +0200
Subject: Work around issue in older Clang versions

---
 libbuild2/diagnostics.hxx | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libbuild2/diagnostics.hxx b/libbuild2/diagnostics.hxx
index c6c4344..179b5c9 100644
--- a/libbuild2/diagnostics.hxx
+++ b/libbuild2/diagnostics.hxx
@@ -273,6 +273,8 @@ namespace build2
   template <typename B>
   struct diag_noreturn_end: butl::diag_noreturn_end<B>
   {
+    diag_noreturn_end () {} // For Clang 3.7 (const needs user default ctor).
+
     using butl::diag_noreturn_end<B>::diag_noreturn_end;
 
     [[noreturn]] friend void
-- 
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