diff --git a/src/OpenGl/OpenGl_Context_1.mm b/src/OpenGl/OpenGl_Context_1.mm
index 5f43c4f309..c8300d9591 100644
--- a/src/OpenGl/OpenGl_Context_1.mm
+++ b/src/OpenGl/OpenGl_Context_1.mm
@@ -19,6 +19,9 @@
 #define GL_GLEXT_LEGACY // To prevent inclusion of system glext.h on Mac OS X 10.6.8
 #endif
 
+// macOS 10.4 deprecated OpenGL framework - suppress useless warnings
+#define GL_SILENCE_DEPRECATION
+
 #import <TargetConditionals.h>
 
 #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
diff --git a/src/OpenGl/OpenGl_GlFunctions.hxx b/src/OpenGl/OpenGl_GlFunctions.hxx
index f39015e87a..34f950d327 100644
--- a/src/OpenGl/OpenGl_GlFunctions.hxx
+++ b/src/OpenGl/OpenGl_GlFunctions.hxx
@@ -46,6 +46,8 @@
 // include main OpenGL header provided with system
 #if defined(__APPLE__)
   #import <TargetConditionals.h>
+  // macOS 10.4 deprecated OpenGL framework - suppress useless warnings
+  #define GL_SILENCE_DEPRECATION
   #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
     #include <OpenGLES/ES2/gl.h>
   #else
diff --git a/src/OpenGl/OpenGl_Window_1.mm b/src/OpenGl/OpenGl_Window_1.mm
index 1b29a2d421..d9e0afad5d 100644
--- a/src/OpenGl/OpenGl_Window_1.mm
+++ b/src/OpenGl/OpenGl_Window_1.mm
@@ -19,6 +19,9 @@
 #define GL_GLEXT_LEGACY // To prevent inclusion of system glext.h on Mac OS X 10.6.8
 #endif
 
+// macOS 10.4 deprecated OpenGL framework - suppress useless warnings
+#define GL_SILENCE_DEPRECATION
+
 #import <TargetConditionals.h>
 
 #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE