added

      ignore_unused_variable_warning(ref);


[SVN r9722]

libs/property_map

@@ -1 +1 @@
-Subproject commit 2293b6eea1e8f10cd94a28aaf3df8aa6588c2c47
+Subproject commit 403795dd2b4928313ce72ad91a6c26bb6f321667