LZ4 1.10.0 for ArmadaMMX Linux

Official upstream source, unmodified. Single-thread CLI for Pentium MMX/i586,
with embedded LZ4 library code and dynamic musl 1.2.6. No external liblz4.so.
Build profile: -O2, -march=pentium-mmx -mtune=pentium-mmx, no SSE/SSE2/AVX.
Stack protector, PIE, RELRO, immediate binding and non-executable stack enabled.
No aliases, services, hooks, headers or shared libraries are installed.

Common commands (choose new output names; no overwrite flag is required):
  /usr/local/bin/lz4 --version
  /usr/local/bin/lz4 --help
  /usr/local/bin/lz4 -B4 input output.lz4
  /usr/local/bin/lz4 -t output.lz4
  /usr/local/bin/lz4 -d output.lz4 restored
  /usr/local/bin/lz4 -B4 -c input > output.lz4
  /usr/local/bin/lz4 -dc output.lz4 > restored
  cat input | /usr/local/bin/lz4 -B4 -c > output.lz4

Shell redirection may truncate an existing destination before LZ4 starts.
Always choose a new destination. Prefer explicit input/output arguments to get
LZ4's own overwrite refusal. Use sha256sum before/after when validating files.
-d is the alternative to unlz4; -dc is the alternative to lz4cat. No symlinks.
-t verifies supported LZ4 frame checksums; it does not authenticate the sender.

Memory: -B4 explicitly selects 64 KiB compression blocks. Upstream default is
unchanged at block ID 7 (4 MiB). In tested 8 MiB datasets, B4 used markedly less
process RSS, but compression speed/ratio varied; mixed data compressed much
worse with small independent blocks. No universal ratio/speed promise.
-B4 is a compression setting, not a decoder memory cap for incoming B7 frames.
RSS excludes reclaimable filesystem page cache and other system services.
No physical Compaq memory/runtime measurements have been made for this build.
Check available RAM and disk space before large jobs; do not rely on zram.
Avoid the built-in -b benchmark (can buffer input), legacy output -l and extreme
compression levels on the 32 MiB notebook unless measured separately. Normal
Frame streaming is the tested path for files larger than RAM. Legacy decoding
was checked only with a small official 1.9.4 legacy sample, not every old format.

Multithreading was disabled at build time with HAVE_MULTITHREAD=0 and
HAVE_PTHREAD=0; LZ4IO_MULTITHREAD=0. -T or LZ4_NBWORKERS cannot enable workers.
No pthread dependency, resident service or kernel/zram modification.

Licensing: CLI/programs GPL-2.0-or-later; lib directory BSD-2-Clause.
See LICENSE-CLI (upstream programs/COPYING), LICENSE-LIB (upstream lib/LICENSE),
and LICENSE-OVERVIEW (upstream root LICENSE). Complete corresponding upstream
source plus external build/package scripts accompany this release separately.
Source: https://github.com/lz4/lz4/tree/v1.10.0
Commit: ebb370ca83af193212df4dcbadcc5d87bc0de2f0
Source SHA-256: 537512904744b35e232912055ccf8ec66d768639ff3abe5788d90d792ec5f48b
Local SHA-256 checks establish integrity, not independent publisher authenticity.
The commit's GitHub web-flow signature was checked; no detached maintainer
archive signature was published among the release assets.