Mac compatibility fixes

ukoethe · Feb 3, 2016 · 2e77163 · 2e77163
1 parent 4d3cfa4
commit 2e77163
Showing 1 changed file with 8 additions and 4 deletions.
diff --git a/include/vigra/numpy_array_converters.hxx b/include/vigra/numpy_array_converters.hxx
@@ -810,31 +810,35 @@ inline typename std::enable_if<std::is_base_of<PythonMultidefFunctor, Functor>::
                                void>::type
 def(char const* python_name, Functor const & f)
 {
-    static_assert(false, "def(): use multidef() to export multiple overloads.");
+    static_assert(!std::is_base_of<PythonMultidefFunctor, Functor>::value, 
+                  "def(): use multidef() to export multiple overloads.");
 }
 
 template <class Functor, class Args>
 inline typename std::enable_if<std::is_base_of<PythonMultidefFunctor, Functor>::value,
                                void>::type
 def(char const* python_name, Functor const & f, Args const& args)
 {
-    static_assert(false, "def(): use multidef() to export multiple overloads.");
+    static_assert(!std::is_base_of<PythonMultidefFunctor, Functor>::value,
+                  "def(): use multidef() to export multiple overloads.");
 }
 
 template <class Functor>
 inline typename std::enable_if<std::is_base_of<PythonMultidefFunctor, Functor>::value,
                                void>::type
 def(char const* python_name, Functor const & f, const char * help)
 {
-    static_assert(false, "def(): use multidef() to export multiple overloads.");
+    static_assert(!std::is_base_of<PythonMultidefFunctor, Functor>::value,
+                  "def(): use multidef() to export multiple overloads.");
 }
 
 template <class Functor, class Args>
 inline typename std::enable_if<std::is_base_of<PythonMultidefFunctor, Functor>::value,
                                void>::type
 def(char const* python_name, Functor const & f, Args const& args, const char * help)
 {
-    static_assert(false, "def(): use multidef() to export multiple overloads.");
+    static_assert(!std::is_base_of<PythonMultidefFunctor, Functor>::value,
+                  "def(): use multidef() to export multiple overloads.");
 }
 
 }} // namespace boost::python