| Index: runtime/bin/eventhandler_macos.cc | 
| diff --git a/runtime/bin/eventhandler_macos.cc b/runtime/bin/eventhandler_macos.cc | 
| index 7aa9280b2f58aae8efa5c8753e2fdfc9235e495d..13423faaca9a8ddc1ec903ca5aedcbd6d86426ca 100644 | 
| --- a/runtime/bin/eventhandler_macos.cc | 
| +++ b/runtime/bin/eventhandler_macos.cc | 
| @@ -5,7 +5,7 @@ | 
| #if !defined(DART_IO_DISABLED) | 
|  | 
| #include "platform/globals.h" | 
| -#if defined(TARGET_OS_MACOS) | 
| +#if defined(HOST_OS_MACOS) | 
|  | 
| #include "bin/eventhandler.h" | 
| #include "bin/eventhandler_macos.h" | 
| @@ -508,6 +508,6 @@ uint32_t EventHandlerImplementation::GetHashmapHashFromFd(intptr_t fd) { | 
| }  // namespace bin | 
| }  // namespace dart | 
|  | 
| -#endif  // defined(TARGET_OS_MACOS) | 
| +#endif  // defined(HOST_OS_MACOS) | 
|  | 
| #endif  // !defined(DART_IO_DISABLED) | 
|  |