diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2ca11efe..e46796a8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -141,10 +141,10 @@ endif(UNIX)
 if(CMAKE_COMPILER_IS_GNUCXX OR "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")    # Clang || GNU
 
     if  ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
-	 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++14 -Wall")       # Clang
+	 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++14 -Wall -g")       # Clang
 	
     else ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
-          set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14  -Wall")       # GNU 
+          set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14  -Wall -g")       # GNU 
           
     endif("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
 
diff --git a/build/makefile/makefile b/build/makefile/makefile
index db31cf6e..9f0fb052 100644
--- a/build/makefile/makefile
+++ b/build/makefile/makefile
@@ -1,43 +1,53 @@
 #Nana C++ Library
 #
-#Makefile created by Jinhao(cnjinhao@hotmail.com)
+#Makefile created by sarrow104(sarrow104@gmail.com)
 
 GCC	= g++
 INCROOT	= ../../include
 SRCROOT	= ../../source
 EXTRLIB = ../../extrlib
 NANA_INC= $(INCROOT)/nana
+OUTROOT = out
+#CXXFLAGS= -g -std=c++11 -Wall
+CXXFLAGS= -g -fexceptions -std=c++11 -Wall -Wextra -Wunused-variable -Wfatal-errors
 
 INCS	= -I$(INCROOT) -I/usr/include/freetype2 -I$(EXTRLIB)
 
 BIN	= libnana.a
 
-SRC_NANA = $(wildcard $(SRCROOT)/*.cpp)
-SRC_DETAIL = $(wildcard $(SRCROOT)/detail/*.cpp)
-SRC_FILESYSTEM = $(wildcard $(SRCROOT)/filesystem/*.cpp)
-SRC_AUDIO = $(wildcard $(SRCROOT)/audio/*.cpp)
-SRC_AUDIO_DETAIL = $(wildcard $(SRCROOT)/audio/detail/*.cpp)
-SRC_GUI = $(wildcard $(SRCROOT)/gui/*.cpp)
-SRC_GUI_DETAIL = $(wildcard $(SRCROOT)/gui/detail/*.cpp)
-SRC_GUI_WIDGETS = $(wildcard $(SRCROOT)/gui/widgets/*.cpp)
-SRC_GUI_WIDGETS_SKELETONS = $(wildcard $(SRCROOT)/gui/widgets/skeletons/*.cpp)
-SRC_PAINT = $(wildcard $(SRCROOT)/paint/*.cpp)
-SRC_PAINT_DETAIL = $(wildcard $(SRCROOT)/paint/detail/*.cpp)
-SRC_SYSTEM = $(wildcard $(SRCROOT)/system/*.cpp)
-SRC_THREADS= $(wildcard $(SRCROOT)/threads/*.cpp)
+TARGET  = ../bin/$(BIN)
 
-SOURCES = $(SRC_NANA) $(SRC_DETAIL) $(SRC_FILESYSTEM) $(SRC_AUDIO) $(SRC_AUDIO_DETAIL) $(SRC_GUI) $(SRC_GUI_DETAIL) $(SRC_GUI_WIDGETS) $(SRC_GUI_WIDGETS_SKELETONS) $(SRC_PAINT) $(SRC_PAINT_DETAIL) $(SRC_SYSTEM) $(SRC_THREADS)
+.PHONY: all clean install print
 
-LINKOBJ	= $(SOURCES:.cpp=.o)
+all: $(TARGET)
 
-$(BIN): $(LINKOBJ)
-	ar r ../bin/$(BIN) $(LINKOBJ)
-	ranlib ../bin/$(BIN)
+define walk
+$(wildcard $(1)) $(foreach e, $(wildcard $(1)/*), $(call walk, $(e)))
+endef
 
-.cpp.o:
-	$(GCC) -g -c $< -o $@ $(INCS) -std=c++11 -Wall
+SRCFILES := $(filter %.cpp,$(patsubst ./%,%,$(filter-out .,$(call walk, $(SRCROOT)))))
+
+LINKOBJ	= $(patsubst $(SRCROOT)/%.cpp,$(OUTROOT)/objs/%.o,$(SRCFILES))
+
+print:
+	@echo $(LINKOBJ)
+
+$(TARGET): $(LINKOBJ)
+	mkdir -p $(dir $@)
+	ar rus $@ $?
+	ranlib $@
+
+$(OUTROOT)/objs/%.o: $(SRCROOT)/%.cpp
+	@mkdir -p $(dir $@)
+	$(GCC) -o $@ -c $< $(INCS) $(CXXFLAGS)
 
 clean:
 	rm -f $(LINKOBJ)
-	rm -f ../bin/$(BIN)
+	rm -f $(TARGET)
 
+install:
+	@mkdir -p $(INSTALL_PREFIX)/include
+	@mkdir -p $(INSTALL_PREFIX)/bin
+	@mkdir -p $(INSTALL_PREFIX)/lib
+	cp -rfl $(INCROOT)/* $(INSTALL_PREFIX)/include
+	cp -rfl $(TARGET) $(INSTALL_PREFIX)/lib/
diff --git a/include/nana/config.hpp b/include/nana/config.hpp
index 0969af25..47ab4e4a 100644
--- a/include/nana/config.hpp
+++ b/include/nana/config.hpp
@@ -25,7 +25,11 @@
 
 #include "c++defines.hpp"
 
-//The basic configurations are ignored when NANA_IGNORE_CONF is defined.
+//This marco is defined since 1.4 and until 1.5 for deprecating frame widget.
+//This marco and class frame will be removed in version 1.5
+#define WIDGET_FRAME_DEPRECATED
+
+//The following basic configurations are ignored when NANA_IGNORE_CONF is defined.
 //The NANA_IGNORE_CONF may be specified by CMake generated makefile.
 #ifndef NANA_IGNORE_CONF
 
@@ -93,10 +97,6 @@
 	#endif
 #endif
 
-//This marco is defined since 1.4 and until 1.5 for deprecating frame widget.
-//This marco and class frame will be removed in version 1.5
-#define WIDGET_FRAME_DEPRECATED
-
 ///////////////////
 //  Support for NANA_AUTOMATIC_GUI_TESTING
 //	  Will cause the program to self-test the GUI. A default automatic GUI test 
diff --git a/include/nana/gui/detail/basic_window.hpp b/include/nana/gui/detail/basic_window.hpp
index 01ccb589..038acdbb 100644
--- a/include/nana/gui/detail/basic_window.hpp
+++ b/include/nana/gui/detail/basic_window.hpp
@@ -64,6 +64,7 @@ namespace detail
 		rectangle effect_range_;
 	};//end class caret
 
+
 	/// Define some constant about tab category, these flags can be combine with operator |
 	struct tab_type
 	{
@@ -75,7 +76,6 @@ namespace detail
 		};
 	};
 
-	class caret;
 
 	/// a window data structure descriptor 
 	struct basic_window
@@ -212,7 +212,9 @@ namespace detail
 
 			struct	attr_root_tag
 			{
+#ifndef WIDGET_FRAME_DEPRECATED
 				container	frames;	///< initialization is null, it will be created while creating a frame widget. Refer to WindowManager::create_frame
+#endif
 				container	tabstop;
 				std::vector<edge_nimbus_action> effects_edge_nimbus;
 				basic_window*	focus{nullptr};
diff --git a/include/nana/gui/detail/window_manager.hpp b/include/nana/gui/detail/window_manager.hpp
index d2a83d3e..e7cbf5ca 100644
--- a/include/nana/gui/detail/window_manager.hpp
+++ b/include/nana/gui/detail/window_manager.hpp
@@ -10,8 +10,8 @@
  *	@file: nana/gui/detail/window_manager.hpp
  *
  *	<Knowledge: 1, 2007-8-17, "Difference between destroy and destroy_handle">
- *		destroy method destroys a window handle and the handles of its children, but it doesn't delete the handle which type is a root window or a frame
- *		destroy_handle method just destroys the handle which type is a root window or a frame
+ *		destroy method destroys a window handle and the handles of its children, but it doesn't delete the handle which type is a root window
+ *		destroy_handle method just destroys the handle which type is a root window
  *
  */
 
diff --git a/source/deploy.cpp b/source/deploy.cpp
index 7f098148..7f715ef9 100644
--- a/source/deploy.cpp
+++ b/source/deploy.cpp
@@ -449,7 +449,7 @@ namespace std
 	//template<   >
 	std::string put_time/*<char, std::string>*/(const std::tm* tmb, const char* fmt)
 	{  
-		unsigned sz = 200;
+		std::size_t sz = 200;
 		std::string str(sz, '\0'); 
 		sz = std::strftime(&str[0], str.size() - 1, fmt, tmb);  
 		str.resize(sz);
diff --git a/source/gui/detail/basic_window.cpp b/source/gui/detail/basic_window.cpp
index a7cbd2e6..faf0b553 100644
--- a/source/gui/detail/basic_window.cpp
+++ b/source/gui/detail/basic_window.cpp
@@ -211,19 +211,24 @@ namespace nana
 				basic_window::other_tag::other_tag(category::flags categ)
 					: category(categ), active_window(nullptr), upd_state(update_state::none)
 				{
+#ifndef WIDGET_FRAME_DEPRECATED
 					switch(categ)
 					{
 					case category::flags::root:
 						attribute.root = new attr_root_tag;
 						break;
-#ifndef WIDGET_FRAME_DEPRECATED
 					case category::flags::frame:
 						attribute.frame = new attr_frame_tag;
 						break;
-#endif
 					default:
 						attribute.root = nullptr;
 					}
+#else
+					if (category::flags::root == categ)
+						attribute.root = new attr_root_tag;
+					else
+						attribute.root = nullptr;
+#endif
 				}
 
 				basic_window::other_tag::~other_tag()
diff --git a/source/gui/detail/window_manager.cpp b/source/gui/detail/window_manager.cpp
index 0af79eb8..f685c83b 100644
--- a/source/gui/detail/window_manager.cpp
+++ b/source/gui/detail/window_manager.cpp
@@ -23,6 +23,8 @@
 #include <stdexcept>
 #include <algorithm>
 
+#include <iostream> //debug travis
+
 namespace nana
 {
 
@@ -92,7 +94,9 @@ namespace detail
 			{
 				void operator()(basic_window* wd) const
 				{
+					std::cout << "delete basic_window " << wd <<"  category="<<static_cast<int>(wd->other.category)<< std::endl;
 					delete wd;
+					std::cout << "  delete successfully" << std::endl;
 				}
 			};
 			
diff --git a/source/gui/widgets/listbox.cpp b/source/gui/widgets/listbox.cpp
index 9c710901..8cf10cbc 100644
--- a/source/gui/widgets/listbox.cpp
+++ b/source/gui/widgets/listbox.cpp
@@ -2078,7 +2078,7 @@ namespace nana
 
 					unsigned x_offset() const
 					{
-						return (h.empty() ? 0 : h.value());
+						return static_cast<unsigned>(h.empty() ? 0 : h.value());
 					}
 
 					index_pair offset_y_abs, offset_y_dpl;	//cat stands for category, item stands for item. "item == npos" means that is a category.
diff --git a/source/gui/widgets/skeletons/text_editor.cpp b/source/gui/widgets/skeletons/text_editor.cpp
index 341fa22d..3062b445 100644
--- a/source/gui/widgets/skeletons/text_editor.cpp
+++ b/source/gui/widgets/skeletons/text_editor.cpp
@@ -3451,7 +3451,7 @@ namespace nana{	namespace widgets
 
 		unsigned text_editor::_m_char_by_pixels(const unicode_bidi::entity& ent, unsigned pos)
 		{
-			unsigned len = ent.end - ent.begin;
+			auto len = static_cast<std::size_t>(ent.end - ent.begin);
 
 			std::unique_ptr<unsigned[]> pxbuf(new unsigned[len]);
 			if (graph_.glyph_pixels(ent.begin, len, pxbuf.get()))
diff --git a/source/paint/text_renderer.cpp b/source/paint/text_renderer.cpp
index 1716b34c..825639c6 100644
--- a/source/paint/text_renderer.cpp
+++ b/source/paint/text_renderer.cpp
@@ -627,7 +627,7 @@ namespace nana
 			std::unique_ptr<unsigned[]> pixels(new unsigned[text.size()]);
 			graph_.glyph_pixels(text.c_str(), text.size(), pixels.get());
 
-			unsigned substr_len = 0;
+			std::size_t substr_len = 0;
 			unsigned substr_px = 0;
 
 			if (align::right == text_align_ex_)