Examples: OpenGL2: Added #define GL_SILENCE_DEPRECATION to cope with newer XCode warnings.

examples/example_glfw_opengl2/main.cpp

@@ -10,6 +10,9 @@
 #include "imgui_impl_glfw.h"
 #include "imgui_impl_opengl2.h"
 #include <stdio.h>
+#ifdef __APPLE__
+#define GL_SILENCE_DEPRECATION
+#endif
 #include <GLFW/glfw3.h>
 
 // [Win32] Our example includes a copy of glfw3.lib pre-compiled with VS2010 to maximize ease of testing and compatibility with old VS compilers.

examples/imgui_impl_opengl2.cpp

@@ -44,6 +44,7 @@
 #define WINGDIAPI __declspec(dllimport)     // Some Windows OpenGL headers need this
 #endif
 #if defined(__APPLE__)
+#define GL_SILENCE_DEPRECATION
 #include <OpenGL/gl.h>
 #else
 #include <GL/gl.h>