GitLab

* https://github.com/lz4/lz4/blob/dev/NEWS

Extended tests fail on x86_64 builders with:

rm: 'tmp-lower-bindir' is a directory
rm: 'tmp-lower-includedir' is a directory
rm: 'tmp-lower-libdir' is a directory
rm: 'tmp-lower-man1dir' is a directory
rm: 'tmp-lower-mandir' is a directory
rm: 'tmp-lower-pkgconfigdir' is a directory
rm: 'tmp-upper-bindir' is a directory
rm: 'tmp-upper-includedir' is a directory
rm: 'tmp-upper-libdir' is a directory
rm: 'tmp-upper-man1dir' is a directory
rm: 'tmp-upper-mandir' is a directory
rm: 'tmp-upper-pkgconfigdir' is a directory
make[1]: *** [Makefile:352: test-lz4-essentials] Error 1

This is exactly the same memcpy()-in-hot-path xxHash problem, see
community/xxhash commit log for details.

The bug makes "lz4 -1" or "lz4 -t" twice slower on x86_64 however
"lz4 -9" is barely affected (do not use "lz4 -b" for benchmarking
this change since it does not calculate the checksum).

Other aport changes:
 - use short and fast "make check" (unlike extensive "make test")
   for pre-v7 ARM architectures.

This fixes rare data corruption introduced in 1.8.2.

* check() re-enabled as tests now run properly in parallel

https://github.com/lz4/lz4/blob/dev/NEWS

With two colons 'tests' seems to be interpreted as an architecture name,
use a singe colon to specify a function name.

* Modernize abuild
* Add $pkgname-libs to split "bin" and "libs"
* Switch to new github page

Performance fix : big compression speed boost for clang (+30%)
https://github.com/Cyan4973/lz4/releases/tag/r130

required for the new spice-gtk 0.28 update patch to follow
Signed-off-by: Leonardo Arena <rnalrd@alpinelinux.org>