1 files changed, 10 insertions, 3 deletions
diff --git a/boost/bind/arg.hpp b/boost/bind/arg.hpp
index a74b8298be..cb52e6689f 100644
--- a/boost/bind/arg.hpp
+++ b/boost/bind/arg.hpp
@@ -21,20 +21,27 @@
 
 #include <boost/config.hpp>
 #include <boost/is_placeholder.hpp>
-#include <boost/static_assert.hpp>
 
 namespace boost
 {
 
+template<bool Eq> struct _arg_eq
+{
+};
+
+template<> struct _arg_eq<true>
+{
+    typedef void type;
+};
+
 template< int I > struct arg
 {
     BOOST_CONSTEXPR arg()
     {
     }
 
-    template< class T > BOOST_CONSTEXPR arg( T const & /* t */ )
+    template< class T > BOOST_CONSTEXPR arg( T const & /* t */, typename _arg_eq< I == is_placeholder<T>::value >::type * = 0 )
     {
-        BOOST_STATIC_ASSERT( I == is_placeholder<T>::value );
     }
 };