should be it

external/duckdb/third_party/brotli/enc/backward_references.h

@@ -0,0 +1,36 @@
+/* Copyright 2013 Google Inc. All Rights Reserved.
+
+   Distributed under MIT license.
+   See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
+*/
+
+/* Function to find backward reference copies. */
+
+#ifndef BROTLI_ENC_BACKWARD_REFERENCES_H_
+#define BROTLI_ENC_BACKWARD_REFERENCES_H_
+
+#include <brotli/types.h>
+
+#include "../common/brotli_constants.h"
+#include "../common/context.h"
+#include "../common/dictionary.h"
+#include "../common/brotli_platform.h"
+#include "command.h"
+#include "brotli_hash.h"
+#include "quality.h"
+
+namespace duckdb_brotli {
+
+/* "commands" points to the next output command to write to, "*num_commands" is
+   initially the total amount of commands output by previous
+   CreateBackwardReferences calls, and must be incremented by the amount written
+   by this call. */
+BROTLI_INTERNAL void BrotliCreateBackwardReferences(size_t num_bytes,
+    size_t position, const uint8_t* ringbuffer, size_t ringbuffer_mask,
+    ContextLut literal_context_lut, const BrotliEncoderParams* params,
+    Hasher* hasher, int* dist_cache, size_t* last_insert_len,
+    Command* commands, size_t* num_commands, size_t* num_literals);
+
+}
+
+#endif  /* BROTLI_ENC_BACKWARD_REFERENCES_H_ */