docbook-xsl version number in pathname (was Re: [PATCH] gnu: Add moreutils.)

[Mark H Weaver <mhw@netris.org>]

Mark H Weaver <mhw@netris.org> writes:

> With these simplifications, it would look like this:
>
>         (lambda* (#:key inputs #:allow-other-keys)
>           (substitute* "Makefile"
>             (("/usr/share/xml/.*/docbook.xsl")
>              (string-append
>               (assoc-ref inputs "docbook-xsl")
>               "/xml/xsl/docbook-xsl-1.78.1/manpages/docbook.xsl"))))

I just realized, it's not good that the docbook-xsl version number is
hardcoded here.  This will break the next time docbook-xsl is updated.

Does anyone know how to improve this?

The relevant bit in the package Makefile that is being modified is this:

DOCBOOK2XMAN=xsltproc --param man.authors.section.enabled 0 /usr/share/xml/docbook/stylesheet/docbook-xsl/manpages/docbook.xsl

Can we modify this command to avoid giving the full pathname?  Or should
we modify our docbook-xsl package to add a symlink that allows us to
omit the version number?

      Mark