From f4f831d1c17e6d0f867d2a398822d518930a2ecd Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 14 Sep 2012 08:29:04 +0200
Subject: GCC 4.5 compatibility fix

---
 odb/gcc.hxx | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/odb/gcc.hxx b/odb/gcc.hxx
index 5290d7a..2112411 100644
--- a/odb/gcc.hxx
+++ b/odb/gcc.hxx
@@ -63,6 +63,8 @@ extern "C"
 } // extern "C"
 #endif
 
+// Only since GCC 4.7.0.
+//
 #ifndef LOCATION_COLUMN
 #define LOCATION_COLUMN(LOC) (expand_location (LOC).column)
 #endif
@@ -71,4 +73,10 @@ extern "C"
 #define DECL_SOURCE_COLUMN(NODE) LOCATION_COLUMN (DECL_SOURCE_LOCATION (NODE))
 #endif
 
+// Only since GCC 4.6.0.
+//
+#ifndef DECL_CHAIN
+#define DECL_CHAIN(x) TREE_CHAIN(x)
+#endif
+
 #endif // ODB_GCC_HXX
-- 
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