Re: private ly:version?

[Jean Abou Samra]

Le 24/09/2020 à 16:05, Jan-Peter Voigt a écrit :
> Hi all,
>
> I now have a use case for ly:version? documented in
> http://lilypond.org/doc/v2.21/Documentation/usage/writing-code-to-support-multiple-versions
>
> But the function is module-private in lily. The example on that page
> does not compile and so doesn't any external file.
>
> I can work around it with
> #(define ly:version? (@@ (lily) ly:version?))
>
> But I guess that is not intended?
> I might change the define to define-public in 'scm/lily-library.scm'?
>
> Jan-Peter

See https://gitlab.com/lilypond/lilypond/-/issues/5517

Naturally, patches are always welcome!

I'm not quite sure how to properly ensure a condition
is true in a regression test. Maybe just

#(if (not (ly:version? = (ly:version)))
   (ly:message "WARNING: ly:version? broken!"))

Best,
Jean