RE: [ft] ABI "stability" question.

[Turner, David]

>
> Have there been any changes in the abi that would cause programs to
> break if the were linked with older libraries?
>
> I guess the real question is, when was the last time this
> happened? I've
> been reading the ChangeLogs and I don't see anything jumping
> out at me.
>

Regarding the public API, I think that the last one was when we
added some fields to the FT_Bitmap_Size structure. This was _really_
bad. I think it was around 2.1.5 or 2.1.7

Some public APIs we consider experimental or in beta have changed
though: the Cache subsystem and the style synthetizer I believe.

Apart from that, I don't remember anything from a long time, though I
may be wrong.

Regarding the internals, a _lot_ have changed, and this has broken
many third-party libraries which took the liberty of including the
FreeType internal headers to peek at useful data instead of asking
for a specific API or providing a patch.

And this has repeatedly broken fontconfig, libXft, Pango and a few
others.

Life's fun :-)

- David Turner
- The FreeType Project  (www.freetype.org)


> Thanks.
>
> --
> Hisashi T Fujinaka - address@hidden
> BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) +
> $2.50 = latte
>
>
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