ffmpeg multiple build flavors

[Loïc Minier]

On Thu, Jun 19, 2008, Reinhard Tartler wrote:
> > The remaining question - thus my initial question in the beginning of
> > the mail - is, where exactly to put the optimized libraries?
> This is highly architecture dependant. You already answered for powerpc,
> for sparc it is in /usr/lib/v9. For other architectures I don't have an
> answer yet.

 I don't think we have infrastructure in place for this.  We would need
 a dynamic linker which would be looking at a mmx specific place before
 /usr/lib.

 What we have currently is a dyn linker looking at a GNU triplet
 specific place before /usr/lib (e.g. /usr/lib/x86_64,
 /usr/lib/x86_64-pc-linux-gnu).  There's also special casing for tls.

 What we could do is use the same pathnames in e.g. libavcodecN and
 libavcodecN-mmx and then use something like:
     libavcodecN (>= x.y) | livavcodecN-mmx (>= x.y)
 in shlibs.  Not sure whether this flies with symbols though.

-- 
Loïc Minier