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-rw-r--r--samples/13_rust_extensions/01_basics/app/ext.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/samples/13_rust_extensions/01_basics/app/ext.h b/samples/13_rust_extensions/01_basics/app/ext.h
index 6f7b750..a34e842 100644
--- a/samples/13_rust_extensions/01_basics/app/ext.h
+++ b/samples/13_rust_extensions/01_basics/app/ext.h
@@ -2,5 +2,6 @@
#include <stdbool.h>
#include <stdint.h>
#include <stdlib.h>
+#include "dragonruby.h"
-int64_t square(int64_t x);
+DRB_FFI int64_t square(int64_t x);