FFe: Sync libzstd 1.3.1+dfsg-1 (universe) from Debian unstable (main)

[Yann Collet]

Please sync libzstd 1.3.1+dfsg-1 (universe) from Debian unstable (main)

Explanation of FeatureFreeze exception:

1.3.1 is a general improvement of zstd over 1.2.0,
especially for multi-threading code path.
It also features a more powerful advanced API for developpers.

sync to 1.3.1 should be done as preliminary step to back-porting into Ubuntu LTS Xenial, which is the final objective.

Changelog entries since current artful version 1.2.0-1:

New license : BSD + GPLv2
perf: substantially decreased memory usage in Multi-threading mode, thanks to reports by Tino Reichardt (@mcmilk)
perf: Multi-threading supports up to 256 threads. Cap at 256 when more are requested (#760)
cli : improved and fixed --list command, by @ib (#772)
cli : command -vV lists supported formats, by @ib (#771)
build : fixed binary variants, reported by @svenha (#788)
build : fix Visual compilation for non x86/x64 targets, reported by @GregSlazinski (#718)
API exp : breaking change : ZSTD_getframeHeader() provides more information
API exp : breaking change : pinned down values of error codes
doc : fixed huffman example, by Ulrich Kunitz (@ulikunitz)
new : contrib/adaptive-compression, I/O driven compression level, by Paul Cruz (@paulcruz74)
new : contrib/long_distance_matching, statistics tool by Stella Lau (@stellamplau)
updated : contrib/linux-kernel, by Nick Terrell (@terrelln)

cli : new : --list command, by @paulcruz74
cli : changed : xz/lzma support enabled by default
cli : changed : -t * continue processing list after a decompression error
API : added : ZSTD_versionString()
API : promoted to stable status : ZSTD_getFrameContentSize(), by @iburinoc
API exp : new advanced API : ZSTD_compress_generic(), ZSTD_CCtx_setParameter()
API exp : new : API for static or external allocation : ZSTD_initStatic?Ctx()
API exp : added : ZSTD_decompressBegin_usingDDict(), requested by @Crazee (#700)
API exp : clarified memory estimation / measurement functions.
API exp : changed : strongest strategy renamed ZSTD_btultra, fastest strategy ZSTD_fast set to 1
Improved : reduced stack memory usage, by @terrelln and @stellamplau
tools : decodecorpus can generate random dictionary-compressed samples, by @paulcruz74
new : contrib/seekable_format, demo and API, by @iburinoc
changed : contrib/linux-kernel, updated version and license, by @terrelln

libzstd (1.3.1+dfsg-1) unstable; urgency=medium

  * Team upload
  * New upstream version
  * Exclude examples from upstream tarball
    Closes: #869581
  * debhelper 10
  * cme fix dpkg-control
  * Standards-Version: 4.1.0 (no changes needed)
  * Fix copyright

 -- Andreas Tille <email address hidden> Wed, 06 Sep 2017 15:29:29 +0200

[Iain Lane (laney)]

Sure, approved.

Next time, could you please confirm that you've built / installed / tested reverse dependencies. I'm subscribing ubuntu-sponsors - whoever sponsors, please satisfy yourself that this is good.

[Graham Inggs (ginggs)]

Thanks Iain.

I am in the process of testing and will sponsor the upload if everything works.

[Graham Inggs (ginggs)]

This bug was fixed in the package libzstd - 1.3.1+dfsg-1
Sponsored for Yann Collet (cyan4973)

---------------
libzstd (1.3.1+dfsg-1) unstable; urgency=medium

  * Team upload
  * New upstream version
  * Exclude examples from upstream tarball
    Closes: #869581
  * debhelper 10
  * cme fix dpkg-control
  * Standards-Version: 4.1.0 (no changes needed)
  * Fix copyright

 -- Andreas Tille <email address hidden> Wed, 06 Sep 2017 15:29:29 +0200