From 006bbc5748a8197d7874550cc9186545f1c55ad8 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 7 Nov 2017 16:57:35 +0200
Subject: Fix GCC 8 adaptation to be compatible with previous versions

---
 odb/validator.cxx | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/odb/validator.cxx b/odb/validator.cxx
index 75757cd..9dcdabf 100644
--- a/odb/validator.cxx
+++ b/odb/validator.cxx
@@ -1512,7 +1512,13 @@ namespace
             compiler, get_identifier ("has_lt_operator"), false, false);
 
           if (has_lt_operator_ != error_mark_node)
+          {
+#if BUILDING_GCC_MAJOR >= 8
             has_lt_operator_ = OVL_FIRST (has_lt_operator_);
+#else
+            has_lt_operator_ = OVL_CURRENT (has_lt_operator_);
+#endif
+          }
           else
           {
             os << unit.file () << ": error: unable to resolve has_lt_operator "
-- 
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