Use static boost::arg placeholders for gcc 4.0.1, since it has

a bug that prevents forwarding placeholders as const references
when using the static inline function placeholders.


[SVN r52384]

libs/bind

@@ -1 +1 @@
-Subproject commit 45a1f1434b55ca31bfef09be2ede9435e584d4e8
+Subproject commit dc1e4dbfae0921cea61c5d644ba137e02cc5dfc8