Changed guard "TL_DECL_MUTEX" to "TL_TRAITS_MUTEX"

rbrugo · rbrugo · commit 608f37b44f9c · 2018-04-17T10:48:36.000+02:00
diff --git a/function_ref.hpp b/function_ref.hpp
@@ -62,7 +62,8 @@
 
 namespace tl {
 namespace detail {
-#ifndef TL_DECL_MUTEX
+#ifndef TL_TRAITS_MUTEX
+#define TL_TRAITS_MUTEX
 // C++14-style aliases for brevity
 template <class T> using remove_const_t = typename std::remove_const<T>::type;
 template <class T>
