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diff --git a/fluent-bit/lib/librdkafka-2.1.0/src/rdkafka_zstd.h b/fluent-bit/lib/librdkafka-2.1.0/src/rdkafka_zstd.h
new file mode 100644
index 000000000..f87c4c6fb
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+++ b/fluent-bit/lib/librdkafka-2.1.0/src/rdkafka_zstd.h
@@ -0,0 +1,57 @@
+/*
+ * librdkafka - The Apache Kafka C/C++ library
+ *
+ * Copyright (c) 2018 Magnus Edenhill
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _RDZSTD_H_
+#define _RDZSTD_H_
+
+/**
+ * @brief Decompress ZSTD framed data.
+ *
+ * @returns allocated buffer in \p *outbuf, length in \p *outlenp on success.
+ */
+rd_kafka_resp_err_t rd_kafka_zstd_decompress(rd_kafka_broker_t *rkb,
+                                             char *inbuf,
+                                             size_t inlen,
+                                             void **outbuf,
+                                             size_t *outlenp);
+
+/**
+ * Allocate space for \p *outbuf and compress all \p iovlen buffers in \p iov.
+ * @param MessageSetSize indicates (at least) full uncompressed data size,
+ *                       possibly including MessageSet fields that will not
+ *                       be compressed.
+ *
+ * @returns allocated buffer in \p *outbuf, length in \p *outlenp.
+ */
+rd_kafka_resp_err_t rd_kafka_zstd_compress(rd_kafka_broker_t *rkb,
+                                           int comp_level,
+                                           rd_slice_t *slice,
+                                           void **outbuf,
+                                           size_t *outlenp);
+
+#endif /* _RDZSTD_H_ */