diff --git a/include/SDL_platform.h b/include/SDL_platform.h
index ebaa25242fde0..b71d1bf34a332 100644
--- a/include/SDL_platform.h
+++ b/include/SDL_platform.h
@@ -70,6 +70,24 @@
 /* lets us know what version of Mac OS X we're compiling on */
 #include "AvailabilityMacros.h"
 #include "TargetConditionals.h"
+
+/* Fix building with older SDKs that don't define these
+   See this for more information:
+   https://stackoverflow.com/questions/12132933/preprocessor-macro-for-os-x-targets
+*/
+#ifndef TARGET_OS_MACCATALYST
+#define TARGET_OS_MACCATALYST 0
+#endif
+#ifndef TARGET_OS_IOS
+#define TARGET_OS_IOS    0
+#endif
+#ifndef TARGET_OS_IPHONE
+#define TARGET_OS_IPHONE 0
+#endif
+#ifndef TARGET_OS_TV
+#define TARGET_OS_TV 0
+#endif
+
 #if TARGET_OS_TV
 #undef __TVOS__
 #define __TVOS__ 1