diff --git a/CMakeLists.txt b/CMakeLists.txt
index fed8704f6b..1b98469e59 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -309,7 +309,7 @@ endif(UNIX)
 
 
 if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
-	set( CMAKE_C_FLAGS "-Wall -Werror -O4 -fvisibility=hidden ${CMAKE_C_FLAGS}" )
+	set( CMAKE_C_FLAGS "-Wall -O4 -fvisibility=hidden ${CMAKE_C_FLAGS}" )
 endif ()
 
 source_group("Headers Private"  FILES ${HDR_PRIVATE})
diff --git a/README b/README
index 37436e83f9..9416920d20 100644
--- a/README
+++ b/README
@@ -1,20 +1,16 @@
-This is the libwebsockets C library for lightweight websocket clients and
-servers.  For support, visit
+TO build lib, need install cmake.
 
- http://libwebsockets.org
+iOS:
+$cd libwebsockets/ios
+$./build_framework.py buildname
 
-and consider joining the project mailing list at
 
- http://ml.libwebsockets.org/mailman/listinfo/libwebsockets
+Android:
+$export ANDROID_NDK=/absolute/path/to/the/android-ndk
+$cd libwebsockets/android
+$./scripts/cmake_android_armeabi.sh
 
-You can get the latest version of the library from git
+If you Android NDK is x86_64, you may need put below code to android.toolchain.cmake
 
-http://git.libwebsockets.org
-https://github.com/warmcat/libwebsockets
-
-for more information:
-
-README.build      - information on building the library
-README.coding     - information for writing code using the library
-README.test-apps  - information about the test apps built with the library
+set( ANDROID_NDK_HOST_X64 1 CACHE BOOL "Try to use 64-bit compiler toolchain" )
 
diff --git a/test-server/test-ping.c b/test-server/test-ping.c
index 098981cf7a..b209d059f8 100644
--- a/test-server/test-ping.c
+++ b/test-server/test-ping.c
@@ -338,7 +338,7 @@ int main(int argc, char **argv)
 	char ip[30];
 #ifndef WIN32
 	struct sigaction sa;
-	struct winsize w;
+	//struct winsize w;
 #endif
 	struct timeval tv;
 	unsigned long oldus = 0;
@@ -420,10 +420,10 @@ int main(int argc, char **argv)
 	}
 
 #ifndef WIN32
-	if (isatty(STDOUT_FILENO))
-		if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &w) != -1)
-			if (w.ws_col > 0)
-				screen_width = w.ws_col;
+	//if (isatty(STDOUT_FILENO))
+	//	if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &w) != -1)
+	//		if (w.ws_col > 0)
+	//			screen_width = w.ws_col;
 #endif
 
 	info.port = CONTEXT_PORT_NO_LISTEN;