[bug#44613] [PATCH] Fix build for bedtools

[Roel Janssen <roel@gnu.org>]

Hi Simon,

On Fri, 2020-11-13 at 13:39 +0100, zimoun wrote:
> Hi Roel,
> 
> On Fri, 13 Nov 2020 at 12:01, Roel Janssen <roel@gnu.org> wrote:
> 
> > With the following patches, I'd like to add samtools-1.9, htslib-
> > 1.9
> > (samtools depends on that) to fix this problem with bedtools.
> 
> Recently, investigating why the substitute of ’python-pysam’ was not
> available, I decided then to give a try at fixing the TODO:
> 
> --8<---------------cut here---------------start------------->8---
>               (snippet '(begin
>                           ;; Drop bundled htslib. TODO: Also remove
> samtools
>                           ;; and bcftools.
>                           (delete-file-recursively "htslib")
>                           #t))))
> --8<---------------cut here---------------end--------------->8---
> 
> And the bundled version is 1.9 (if I remember correctly), therefore
> because of:
> 
> --8<---------------cut here---------------start------------->8---
>     (native-inputs
>      `(("python-cython" ,python-cython)
>        ;; Dependencies below are are for tests only.
>        ("samtools" ,samtools)
>        ("bcftools" ,bcftools)
>        ("python-nose" ,python-nose)))
> --8<---------------cut here---------------end--------------->8---
> 
> some tests are unhappy.
> 
> That’s said, these additions seem fine with me. :-)
> 

I also tried removing the bundled htslib for bedtools, but didn't go
this route for two reasons:
- The bundled htslib for bedtools seems "slightly modified" (I didn't
investigate further)
- Replacing the references to libhts.a with $(pkg-config htslib --
cflags --libs) produced various linker errors. So I stopped right
there.

I'm sure more tools will likely have failed because of the htslib
upgrade (sorry about this!), so having htslib-1.9 around for some time
may be a good fallback for now.

Just to double-check: Is it OK to push the proposed patches?

Kind regards,
Roel Janssen