[FFmpeg-devel] [PATCH] restoring binary compatibility with ffmpeg 0.5
Mon Jun 7 00:29:16 CEST 2010
Reimar D?ffinger <Reimar.Doeffinger at gmx.de> writes:
> On Sun, Jun 06, 2010 at 10:32:19PM +0100, M?ns Rullg?rd wrote:
>> Michael Niedermayer <michaelni at gmx.at> writes:
>> >> so it will still break compatibility to some previous versions.
>> > do you assume this or have you tested this?
>> It changes the name of the symbol. Anything linked against current
>> libavcodec will fail after this change.
> Well, I at least just assumed this.
> I expect (but I don't know) that adding an extra .symver will "solve" this
> for gcc+gas even without the extra entry in the version script.
The .symver directive takes precedence over a version script, says the
> We'd then be down to only breaking compatibility on some platforms and
> only to some versions (not to 0.5).
A partial fix is no fix IMO, which leaves three possibilities:
1. Leave it as is. We have yet to receive any reports of it actually
causing trouble. I'm not really fond of this idea though.
2. Find a solution that works everywhere. May be impossible.
3. Bump libavformat major.
mans at mansr.com
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