Re: Relation between the :version command showing +perl/dyn and "echo has ("perl") returning 1.

On Thursday, January 2, 2014 3:12:27 PM UTC+5:30, Tony Mechelynck wrote:
> On 02/01/14 10:08, Pritesh Ugrankar wrote:
>
> > Hi,
>
> >
>
> > Vim newbie here.
>
> >
>
> > Please let me know the relation between the :version command showing +perl/dyn and "echo has ("perl") returning 1.
>
> >
>
> > I am using gVim7.4 (downloaded from www.vim.org) on Windows 7.
>
> >
>
> > I had earlier installed Strawberry Perl version 5.16.3 (32 Bit) and at that time, for "echo has ("perl").would return 0.
>
> >
>
> > Recently removed that version of Perl and installed DWIM Perl Version 5.14.2.1 (32 Bit).
>
> >
>
> > Now vim returns "1" for "echo has ("perl").
>
> >
>
> > What does this mean? Will this enable me to do something that I was not doing earlier.
>
> >
>
> > When I googled a bit, now I understand that I can run "%perldo s/this/that/gi". But apart from this, what are the advantages that I have now?
>
> >
>
> > Kindly let me know.
>
> >
>
>
>
> +perl/dyn means Vim was compiled with the Perl interface dynamically
>
> included. In that case the perl commands can be used (and has('perl')
>
> will return 1) if the perl libraries (of the correct version) can be
>
> found at run-time by the Vim executable. If the perl libraries cannot be
>
> found, the same executable will have has('perl') returning zero, and the
>
> Perl interface cannot be used then. The output of :version should give
>
> you, somewhere in the "Compilation:" and "Linking:" paragraphs in the
>
> bottom half of the listing, the arguments which were used to invoke the
>
> Perl include files and/or the Perl libraries; from that you ought to be
>
> able to determine which Perl version Vim will be looking for.
>
>
>
> +perl (without /dyn) means that the Perl libraries were included
>
> statically, which makes for a bulkier executable, but no dependency on
>
> something which might or might not be found at run-time. In that case
>
> has('perl') will always return 1.
>
>
>
> -perl of course means that the Perl interface was completely excluded at
>
> compile-time, so has('perl') will always return 0.
>
>
>
> The output of :version is fixed at compile-time, so it cannot show
>
> anything that is only known at run-time.
>
>
>
> Similarly for +python/dyn, +ruby/dyn, +tcl/dyn etc.
>
>
>
>
>
> Best regards,
>
> Tony.
>
> --
>
> Ye gods! Give me strength to suffer what cannot be changed, courage to
>
> change
>
> what must be changed, and wisdom to tell the two apart.
>
> -- Marcus Aurelius

Hi Tony,

Thank you very much for the reply. Does the +perl/dyn or +perl help in syntax highlighting/autocompletion? Or is there some other advantage of that? I will be extremely thankful if you could let me know.

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