[bug#47898] [PATCH] [core-updates] Add option --xpath0 to xmllint from libxml2

[david larsson]

> Please also register this patch in gnu/local.mk.  Can you also add your
> copyright at the top of xml.scm?

Done!

> [...]
>
> > +(define-public libxml2-xpath0
> > +  (package
> > +    (name "libxml2-xpath0")
> > +    (version "2.9.10")
> > +    (source (origin
> > +             (method url-fetch)
> > +             (uri (string-append "ftp://xmlsoft.org/libxml2/libxml2-";
> > +                                 version ".tar.gz"))
> > +             (sha256
> > +              (base32
> > +               
> > "07xynh8hcxb2yb1fs051xrgszjvj37wnxvxgsj10rzmqzy9y3zma"))
> > +             (patches (list (search-patch 
> > "libxml2-Add-option-xpath0.patch")))))
>
> You can inherit another record in Scheme to avoid duplicating all the
> fields.  Then the package can be shortened to:
>
>   (define-public libxml2-xpath0
>     (package/inherit libxml2
>       (name "libxml2-xpath0")
>       (source (origin
>                 (inherit (package-source libxml2))
>                 (patches (append (search-patches
> "libxml2-Add-option-xpath0.patch")
>                                  (origin-patches (package-source 
> libxml2))))))
>       (description
>        "...")))
>
> We should fill out that description to mention how it differs from the
> regular libxml2.  Can you give it a try?  I can make the other changes
> on your behalf, but not sure what to write.
>
> Thanks,
> Marius

Hi, new patch attached. There's a lint warning though: 
"libxml2-xpath0@2.9.10: no updater for libxml2-xpath0". I don't know 
what it means, maybe it should be fixed before committing?

Best regards,
David

0001-gnu-libxml2-xpath0-New-package-with-patch-for-xpath0.patch
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