Add files via upload

CHANGELOG.md

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+
+# Change Log
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](http://keepachangelog.com/)
+and this project adheres to [Semantic Versioning](http://semver.org/).
+
+## [1.0.3] - 2023-05-15
+### Added
+- Options: delta-info and digest-info to check and prints information from file header
+- Streams: allows use STDIN and STDOUT for delta data
+- Apply-delta: option to apply delta to destination device
+- Make-delta: option to create delta from source device and digest
+- Delta files: stores only differential changes between source and target device
+- Delta files support
+
+
+## [1.0.1] - 2023-04-19
+### Added
+- Benchmark algos: added option to benchmark all supported hash algorithms
+- xxHash library: optional support for fast hashing algos: XXH32, XXH64, XXH3LOW, XXH3, XXH128
+- xxHash support added
+
+
+## [1.0.0] - 2023-03-11
+### Added
+- Mmap: alternative read/write method
+- Digest file: which stores checksums of target device
+- Libgcrypt support (1.90): provides multiple hashing algos for digest file
+- Block size: adjustable block-size option
+- Buffer size: adjustable buffer-size option
+- Blocksync operation mode: which compares and syncs the source and target device
+- Initial version release

Makefile.am

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+# ./Makefile.am - this file is a part of program blocksync-fast
+
+# Copyright (C) 2023 Marcin Koczwara <mk@nethorizon.pl>
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+SUBDIRS = src