diff --git a/include/nana/deploy.hpp b/include/nana/deploy.hpp
index f031c66d..342adfe7 100644
--- a/include/nana/deploy.hpp
+++ b/include/nana/deploy.hpp
@@ -121,6 +121,13 @@ namespace nana
 
 		using std::runtime_error::runtime_error;
 
+#if defined(_MSC_VER)
+#	if (_MSC_VER < 1900)
+		//A workaround for lack support of C++11 inheriting constructors  for VC2013
+		explicit utf8_Error(const std::string& msg);
+#	endif
+#endif
+
 		void emit();
 	};
 
diff --git a/source/charset.cpp b/source/charset.cpp
index 42fc386a..225cba40 100644
--- a/source/charset.cpp
+++ b/source/charset.cpp
@@ -1162,12 +1162,21 @@ namespace nana
 				{
 					switch(encoding)
 					{
+#if defined(NANA_WINDOWS)
 					case unicode::utf8:
 						return utf16_to_utf8(wcstr);
 					case unicode::utf32:
 						return utf16_to_utf32(wcstr);
 					case unicode::utf16:
 						return wcstr;
+#else //POSIX
+					case unicode::utf8:
+						return utf32_to_utf8(wcstr);
+					case unicode::utf16:
+						return utf32_to_utf16(wcstr);
+					case unicode::utf32:
+						return wcstr;
+#endif
 					}
 				}
 				return {};
diff --git a/source/deploy.cpp b/source/deploy.cpp
index eb79b86a..3e6dfcf7 100644
--- a/source/deploy.cpp
+++ b/source/deploy.cpp
@@ -513,6 +513,17 @@ namespace nana
 		return true;
 	}
 
+	//class utf8_Error
+
+#if defined(_MSC_VER)
+#	if (_MSC_VER < 1900)
+	//A workaround for lack support of C++11 inheriting constructors  for VC2013
+	utf8_Error::utf8_Error(const std::string& msg)
+		: std::runtime_error(msg)
+	{}
+#	endif
+#endif
+
     void utf8_Error::emit()
 		{
 			if (use_throw)
@@ -522,6 +533,7 @@ namespace nana
 
 	//bool utf8_Error::use_throw{true}; 
 	bool utf8_Error::use_throw{ false };
+	//end class utf8_Error
 
 	void throw_not_utf8(const std::string& text)
 	{