Index: ios/testing/wait_util.mm |
diff --git a/ios/testing/wait_util.mm b/ios/testing/wait_util.mm |
index d39636bd1ee6a32b770989ed5a2b333a713c3ba2..222974a44e15e37982a76d1e5edc90d819895326 100644 |
--- a/ios/testing/wait_util.mm |
+++ b/ios/testing/wait_util.mm |
@@ -6,6 +6,10 @@ |
#include "base/test/ios/wait_util.h" |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
namespace testing { |
const NSTimeInterval kSpinDelaySeconds = 0.01; |