diff --git a/config/Linux.config b/config/Linux.config
index 409e13e..7e5169f 100644
--- a/config/Linux.config
+++ b/config/Linux.config
@@ -1,6 +1,6 @@
 #
-# Automatically generated make config: don't edit
-# Linux kernel version: 
+# Automatically generated file; DO NOT EDIT.
+# Linux Kernel Configuration
 #
 
 #
@@ -8,8 +8,9 @@
 #
 CONFIG_BUILD_EDN=y
 # CONFIG_BUILD_AGG is not set
+CONFIG_BUILD_LINEARMATH=y
+CONFIG_BUILD_BULLET=y
 # CONFIG_BUILD_ETK is not set
-# CONFIG_BUILD_EWOL is not set
 # CONFIG_BUILD_FREETYPE is not set
 # CONFIG_BUILD_LUA is not set
 # CONFIG_BUILD_OGG is not set
@@ -19,6 +20,7 @@ CONFIG_BUILD_EDN=y
 # CONFIG_BUILD_TINYXML is not set
 # CONFIG_BUILD_ZLIB is not set
 # CONFIG_BUILD_LIBZIP is not set
+# CONFIG_BUILD_EWOL is not set
 
 #
 # edn
@@ -37,5 +39,11 @@ CONFIG_APPL_BUFFER_FONT_NORMAL=y
 #
 # General
 #
-# CONFIG___EWOL_INTEGRATED_FONT__ is not set
 CONFIG___EWOL_APPL_BASIC_TITLE__="Edn : Sources Code Editor"
+# CONFIG___EWOL_INTEGRATED_FONT__ is not set
+
+#
+# Linux
+#
+CONFIG___EWOL_LINUX_GUI_MODE_X11__=y
+# CONFIG___EWOL_LINUX_GUI_MODE_DIRECT_FB__ is not set
diff --git a/sources/appl/Buffer/BufferText.cpp b/sources/appl/Buffer/BufferText.cpp
index 33cc9a0..6e79de7 100644
--- a/sources/appl/Buffer/BufferText.cpp
+++ b/sources/appl/Buffer/BufferText.cpp
@@ -114,9 +114,7 @@ bool BufferText::NeedToUpdateDisplayPosition(void)
 
 vec2  BufferText::GetBorderSize(void)
 {
-	vec2  tmpVal;
-	tmpVal.setValue(30,30);
-	return tmpVal;
+	return vec2(30,30);;
 }
 
 
@@ -864,7 +862,7 @@ vec2  BufferText::GetPosition(int32_t fontId, bool& centerRequested)
 {
 	centerRequested = m_centerRequested;
 	m_centerRequested = false;
-	vec2  outputPosition;
+	vec2  outputPosition(0,0);
 
 	// Display position (Y mode):
 	APPL_INFO("change the position : " << m_cursorPos);
@@ -892,7 +890,7 @@ vec2  BufferText::GetPosition(int32_t fontId, bool& centerRequested)
 	/* if we request a center : 
 	} else {
 		// center the line at the middle of the screen :
-		vec2  outputPosition;
+		vec2  outputPosition(0,0);
 		//APPL_DEBUG(" -------------------------------------------------");
 		outputPosition.y = m_EdnBuf.CountLines(0, m_cursorPos);
 		//APPL_DEBUG(" cursor position : " << m_cursorPos << " ==> ligne=" << outputPosition.y);
diff --git a/sources/appl/Gui/CodeView.cpp b/sources/appl/Gui/CodeView.cpp
index 56e8b54..56eb626 100644
--- a/sources/appl/Gui/CodeView.cpp
+++ b/sources/appl/Gui/CodeView.cpp
@@ -84,8 +84,7 @@ CodeView::~CodeView(void)
  */
 void CodeView::UpdateNumberOfLineReference(int32_t bufferID)
 {
-	vec2 tmpCoord;
-	tmpCoord.setValue(0,0);
+	vec2 tmpCoord(0,0);
 	if (m_lineNumberList.Size()<=bufferID) {
 		// update the number of elements : 
 		for (int32_t iii=m_lineNumberList.Size(); iii <= bufferID; iii++) {
diff --git a/sources/appl/init.cpp b/sources/appl/init.cpp
index 1738fca..37dd048 100644
--- a/sources/appl/init.cpp
+++ b/sources/appl/init.cpp
@@ -49,22 +49,22 @@ int main(int argc, const char *argv[])
 void APP_Init(void)
 {
 	#ifdef MODE_RELEASE
-		char * debugMode = "Release";
+		const char * debugMode = "Release";
 	#else
-		char * debugMode = "Debug";
+		const char * debugMode = "Debug";
 	#endif
 	#ifdef __TARGET_OS__Linux
-		char * osMode = "Linux";
+		const char * osMode = "Linux";
 	#elif defined(__TARGET_OS__Android)
-		char * osMode = "Android";
+		const char * osMode = "Android";
 	#elif defined(__TARGET_OS__Windows)
-		char * osMode = "Windows";
+		const char * osMode = "Windows";
 	#elif defined(__TARGET_OS__IOs)
-		char * osMode = "IOs";
+		const char * osMode = "IOs";
 	#elif defined(__TARGET_OS__MacOs)
-		char * osMode = "MacOs";
+		const char * osMode = "MacOs";
 	#else
-		char * osMode = "Unknown";
+		const char * osMode = "Unknown";
 	#endif
 	APPL_INFO("==> Init "PROJECT_NAME" (START) [" << osMode << "] (" << debugMode << ")");