The htslib directory is derived from release 1.8 of the HTSlib as
distributed on https://github.com/samtools/htslib.

In https://github.com/brentp/cyvcf2/issues/91 we came to the temporal
conclusion that because of many smallish changes and a test error with
the official library, Debian should go ahead with the unaltered source
tree. This violates the DFSG but it would violate scientific principles
to ignore that difference between versions.

Upstream stated in that github issue that he would be motivated to
approach the official HTSlib release and to prepare a restructuring
of his git repository to allow for such a submodule. We are all very
much looking forward to it.

Many thanks, Brent!

-- 
  Steffen Moeller <moeller@debian.org>
