From 3a1788234bfaa96ee093b68e9ba02cf7d5bdffe6 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 5 Oct 2018 07:20:18 +0200
Subject: Handle namespace aliases when parsing GCC tree

---
 odb/parser.cxx | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/odb/parser.cxx b/odb/parser.cxx
index 968903c..7cce486 100644
--- a/odb/parser.cxx
+++ b/odb/parser.cxx
@@ -906,6 +906,11 @@ collect (tree ns)
       continue;
 #endif
 
+    // Ignore namespace aliases.
+    //
+    if (DECL_NAMESPACE_ALIAS (decl))
+      continue;
+
     if (!DECL_IS_BUILTIN (decl) || DECL_NAMESPACE_STD_P (decl))
     {
       if (trace)
-- 
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