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-rw-r--r--ext/ffi/prelude.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/ext/ffi/prelude.h b/ext/ffi/prelude.h
index 89ae162c1..2da1e6523 100644
--- a/ext/ffi/prelude.h
+++ b/ext/ffi/prelude.h
@@ -1,5 +1,16 @@
// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
+/* Boolean type */
+
+#ifndef _STDBOOL_H
+#define _STDBOOL_H
+
+#define bool _Bool
+#define true 1
+#define false 0
+
+#endif
+
/* Exact integral types. */
/* Signed. */