[Fontconfig] FC_LIB_VERSION?

[Behdad Esfahbod]

On Mon, Dec 18, 2017 at 8:12 AM, Akira TAGOH <akira at tagoh.org> wrote:

> On Mon, Dec 18, 2017 at 3:26 AM, Behdad Esfahbod <behdad at behdad.org>
> wrote:
> > Hi,
> >
> > Should we add a FC_LIB_VERISION "libversion" element that is
> automatically
> > (ideally before FcDefaultSubstitute; but how?) set to fontconfig library
>
> maybe doing that in the config file and read it early or put it in
> fonts.conf where is earlier than reading sub dirs? I have no idea more
> than that at this moment.
>

Sounds good.

I wonder if the library should warn if the config seems to be from another
library version...


> > version as returned by FC_VERSION?  This would allow third-party config
> > files to behave correctly with different versions of the library.  This
> was
> > motivated by seeing Twemoji's config file for example, which is needed
> for
> > older versions of fontconfig that didn't have proper emoji support, but
> not
> > with newer versions...
> >
> > A constant is probably more appropriate, but a pattern element. But don't
> > know if those can be tested easily.
> >
> > --
> > behdad
> > http://behdad.org/
> >
> > _______________________________________________
> > Fontconfig mailing list
> > Fontconfig at lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/fontconfig
> >
>
>
>
> --
> Akira TAGOH
>



-- 
behdad
http://behdad.org/
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