diff --git a/3d-viewer/common_ogl/openGL_includes.h b/3d-viewer/common_ogl/openGL_includes.h
index 17c06f1768..a0bc2d4a02 100644
--- a/3d-viewer/common_ogl/openGL_includes.h
+++ b/3d-viewer/common_ogl/openGL_includes.h
@@ -33,6 +33,9 @@
 #include <wx/wx.h>
 
 #ifdef __APPLE__
+// Apple, in their infinite wisdom, has decided to mark OpenGL as deprecated.
+// Luckily we can silence warnings about its deprecation.
+#define GL_SILENCE_DEPRECATION 1
 #include <OpenGL/gl.h>
 #include <OpenGL/glu.h>
 #else
diff --git a/common/gal/opengl/opengl_gal.cpp b/common/gal/opengl/opengl_gal.cpp
index 85d3ce2a5b..66fff1d010 100644
--- a/common/gal/opengl/opengl_gal.cpp
+++ b/common/gal/opengl/opengl_gal.cpp
@@ -26,6 +26,12 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
  */
 
+// Apple, in their infinite wisdom, has decided to mark OpenGL as deprecated.
+// Luckily we can silence warnings about its deprecation.
+#ifdef __APPLE__
+#define GL_SILENCE_DEPRECATION 1
+#endif
+
 #include <gal/opengl/opengl_gal.h>
 #include <gal/opengl/utils.h>
 #include <gal/definitions.h>
diff --git a/utils/idftools/vrml_layer.h b/utils/idftools/vrml_layer.h
index 692d6f1436..a0eaa2db4f 100644
--- a/utils/idftools/vrml_layer.h
+++ b/utils/idftools/vrml_layer.h
@@ -35,6 +35,11 @@
 #ifndef VRML_LAYER_H
 #define VRML_LAYER_H
 
+// Apple, in their infinite wisdom, has decided to mark OpenGL as deprecated.
+// Luckily we can silence warnings about its deprecation.
+#ifdef __APPLE__
+#define GL_SILENCE_DEPRECATION 1
+#endif
 
 #include <wx/glcanvas.h>    // CALLBACK definition, needed on Windows
                             // alse needed on OSX to define __DARWIN__