diff --git a/include/wx/platform.h b/include/wx/platform.h
index 2ba090a0e1..5649c78944 100644
--- a/include/wx/platform.h
+++ b/include/wx/platform.h
@@ -38,6 +38,18 @@
 #    ifndef MAC_OS_X_VERSION_10_10
 #       define MAC_OS_X_VERSION_10_10 101000
 #    endif
+#    ifndef MAC_OS_X_VERSION_10_11
+#       define MAC_OS_X_VERSION_10_11 101100
+#    endif
+#    ifndef MAC_OS_X_VERSION_10_12
+#       define MAC_OS_X_VERSION_10_12 101200
+#    endif
+#    ifndef NSAppKitVersionNumber10_10
+#       define NSAppKitVersionNumber10_10 1343
+#    endif
+#    ifndef NSAppKitVersionNumber10_11
+#       define NSAppKitVersionNumber10_11 1404
+#    endif
 #    include "wx/osx/config_xcode.h"
 #    ifndef __WXOSX__
 #        define __WXOSX__ 1
@@ -472,6 +484,12 @@
 #        ifndef MAC_OS_X_VERSION_10_12
 #           define MAC_OS_X_VERSION_10_12 101200
 #        endif
+#        ifndef NSAppKitVersionNumber10_10
+#           define NSAppKitVersionNumber10_10 1343
+#        endif
+#        ifndef NSAppKitVersionNumber10_11
+#           define NSAppKitVersionNumber10_11 1404
+#        endif
 #    else
 #        error "only mach-o configurations are supported"
 #    endif