From 132dabe24e847827129e960f433b0dfa006d077e Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 14 Oct 2021 13:44:05 +0200
Subject: Work around what looks like another instance of Clang bug #45021

---
 bdep/buildfile | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/bdep/buildfile b/bdep/buildfile
index 98a03f1..6fbee61 100644
--- a/bdep/buildfile
+++ b/bdep/buildfile
@@ -107,6 +107,15 @@ switch $cxx.class
 if ($cxx.target.class == 'linux')
   cxx.loptions += -rdynamic
 
+# @@ TMP work around what looks like Clang bug #45021 (first triggered with
+#    Clang 13.0.0).
+#
+if ($cxx.id == 'clang' && $cxx.target.system == 'win32-msvc')
+{
+  if ($regex.find_match($cc.coptions $cxx.coptions, '-O[23]'))
+    obj{new}: cxx.coptions += -O1
+}
+
 # Generated options parser.
 #
 if $cli.configured
-- 
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