--- /dev/null
+#ifndef DUK_ALLOC_HYBRID_H_INCLUDED
+#define DUK_ALLOC_HYBRID_H_INCLUDED
+
+#include "duktape.h"
+
+void *duk_alloc_hybrid_init(void);
+void *duk_alloc_hybrid(void *udata, duk_size_t size);
+void *duk_realloc_hybrid(void *udata, void *ptr, duk_size_t size);
+void duk_free_hybrid(void *udata, void *ptr);
+
+#endif /* DUK_ALLOC_HYBRID_H_INCLUDED */