Remove SIGC_WORKAROUND_OPERATOR_PARENTHESES, using just .template operator()<>.

We can add it back if we find that the Sun or Microsoft compilers still
need it, when/if they support enough C++14 anyway.
We can always use libsigc++-2.0 to easily discover what its configure
checks say about the compiler behaviour.

1 files changed, 2 insertions, 2 deletions

diff --git a/sigc++/adaptors/retype_return.h b/sigc++/adaptors/retype_return.h
index e01a00a..29b8eb0 100644
--- a/sigc++/adaptors/retype_return.h
+++ b/sigc++/adaptors/retype_return.h
@@ -23,7 +23,7 @@ struct retype_return_functor : public adapts<T_functor>
 
   template <class... T_arg>
   inline T_return operator()(T_arg&&... _A_a)
-    { return T_return(this->functor_.SIGC_WORKAROUND_OPERATOR_PARENTHESES<T_arg...>
+    { return T_return(this->functor_.template operator()<T_arg...>
         (std::forward<T_arg>(_A_a)...));
     }
 
@@ -60,7 +60,7 @@ struct retype_return_functor<void, T_functor> : public adapts<T_functor>
 
   template <class... T_arg>
   inline void operator()(T_arg... _A_a)
-    { this->functor_.SIGC_WORKAROUND_OPERATOR_PARENTHESES<T_arg...>
+    { this->functor_.template operator()<T_arg...>
         (_A_a...);
     }