Index: src/platform.h
==================================================================
--- src/platform.h
+++ src/platform.h
@@ -69,11 +69,12 @@
 # define OF_SPARC
 #endif
 
 #if defined(__APPLE__)
 # include <TargetConditionals.h>
-# if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
+# if (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE) || \
+    (defined(TARGET_OS_SIMULATOR) && TARGET_OS_SIMULATOR)
 #  define OF_IOS
 # else
 #  define OF_MACOS
 # endif
 #elif defined(__linux__)