--- /opt/cocos2d-x/cocos/renderer/ccShader_UI_Gray.frag	2016-12-29 13:42:38.000000000 -0400
+++ /tmp/ccShader_UI_Gray.frag	2017-01-04 15:03:05.239882265 -0400
@@ -1,8 +1,8 @@
-const char* ccPositionTexture_GrayScale_frag = R"(
+const char* ccPositionTexture_GrayScale_frag = STRINGIFY(
 
-#ifdef GL_ES
+\n#ifdef GL_ES\n
 precision mediump float;
-#endif
+\n#endif\n
 
 varying vec4 v_fragmentColor;
 varying vec2 v_texCoord;
@@ -14,4 +14,4 @@
     gl_FragColor.xyz = vec3(0.2126*c.r + 0.7152*c.g + 0.0722*c.b);
     gl_FragColor.w = c.w;
 }
-)";
+);