improve the detection for GCC

source/deploy.cpp

@@ -294,6 +294,74 @@ namespace std
 			*pos = (std::size_t)(end - ptr);
 		return result;
 	}
+}//end namespace std
+#endif //STD_NUMERIC_CONVERSIONS_NOT_SUPPORTED
+
+#ifdef STD_TO_STRING_NOT_SUPPORTED
+namespace std
+{
+	std::string to_string(double v)
+	{
+		std::stringstream ss;
+		ss << v;
+		return ss.str();
+	}
+
+	std::string to_string(long double v)
+	{
+		std::stringstream ss;
+		ss << v;
+		return ss.str();
+	}
+
+	std::string to_string(unsigned v)
+	{
+		std::stringstream ss;
+		ss << v;
+		return ss.str();
+	}
+
+	std::string to_string(int v)
+	{
+		std::stringstream ss;
+		ss << v;
+		return ss.str();
+	}
+
+	std::string to_string(long v)
+	{
+		std::stringstream ss;
+		ss << v;
+		return ss.str();
+	}
+
+	std::string to_string(unsigned long v)
+	{
+		std::stringstream ss;
+		ss << v;
+		return ss.str();
+	}
+
+	std::string to_string(long long v)
+	{
+		std::stringstream ss;
+		ss << v;
+		return ss.str();
+	}
+
+	std::string to_string(unsigned long long v)
+	{
+		std::stringstream ss;
+		ss << v;
+		return ss.str();
+	}
+
+	std::string to_string(float v)
+	{
+		std::stringstream ss;
+		ss << v;
+		return ss.str();
+	}
 
 	std::wstring to_wstring(double v)
 	{

source/gui/detail/linux_X11/bedrock.cpp

@@ -468,8 +468,8 @@ namespace detail
 		arg.right_button	= ((Button2Mask & mask_state) != 0) || (::nana::mouse::right_button == arg.button);
 		arg.mid_button		= ((Button3Mask & mask_state) != 0) || (::nana::mouse::middle_button == arg.button);
 		arg.alt		= ((Mod1Mask & mask_state) != 0);
-		arg.shift	= <EFBFBD><EFBFBD>(ShiftMask & mask_state) != 0);
-		arg.ctrl	= <EFBFBD><EFBFBD>(ControlMask & mask_state) != 0);
+		arg.shift	= ((ShiftMask & mask_state) != 0);
+		arg.ctrl	= ((ControlMask & mask_state) != 0);
 
 	}
 
@@ -833,7 +833,7 @@ namespace detail
 								msgwnd->flags.action = mouse_action::over;
 
 								click_arg.window_handle = reinterpret_cast<window>(msgwnd);
-								emit_drawer(&drawer::click, msgwnd, arg, &context);
+								emit_drawer(&drawer::click, msgwnd, click_arg, &context);
 							}
 						}
 					

source/gui/place.cpp

@@ -15,6 +15,7 @@
 #include <cmath>
 #include <map>
 #include <deque>
+#include <nana/deploy.hpp>
 #include <nana/gui/place.hpp>
 #include <nana/gui/programming_interface.hpp>
 #include <nana/gui/widgets/label.hpp>
@@ -95,13 +96,7 @@ namespace nana
 
 			std::string pos_str() const
 			{
-#ifdef UNDEFINED_to_string
-				std::stringstream ss;
-				ss<<pos();
-				return ss.str();
-#else
 				return std::to_string(pos());
-#endif // UNDEFINED_to_string
 			}
 
 			token read()