Re: [Ekiga-devel-list] ANNOUNCE - Ekiga 3.0.1 available

[Matthias Schneider <ma30002000 yahoo de>]

Peter,
it looks strange to me that at opal compilation time you have speexdsp 
on your system and at ekiga compile time you dont. Actually the behaviour 
seems normal to me:

- We build a OPAL shared library that requires speexdsp.
- When we link this library, it is checked that speexdsp symbols are working; 
  however the speexdsp symbols will NOT be included in the OPAL shared lib
- OPAL adds speexdsp to its PKG-requires section to tell apps linking to it that 
  it accesses symbols from speexdsp
- when ekiga links to opal, it also has to link to speexdsp in order to resolve all symbols
  ( you would get unresolved symbols errors if not)
- ekiga gets this information from pkg-config

Matthias




----- Ursprüngliche Mail ----
> Von: Peter Robinson <pbrobinson gmail com>
> An: Matthias Schneider <ma30002000 yahoo de>
> CC: Ekiga development mailing list <ekiga-devel-list gnome org>
> Gesendet: Dienstag, den 21. Oktober 2008, 11:00:21 Uhr
> Betreff: Re: [Ekiga-devel-list] ANNOUNCE - Ekiga 3.0.1 available
> 
> > Hi Peter,
> > actually the dependency to speexdsp was not added, but the detection
> > of a system speexdsp was fixed. We have two places where we use speex:
> >
> > speex at the speex codec plugin
> > speexdsp for echo cancelling in opal
> >
> > For speex in the plugin nothing has changed. For the echo cancelling,
> > since the detection was not working in 3.0.0, OPAL always fell back to
> > the internal speexdsp code, which is actually quite old and caused problems
> > on some systems (e.g. windows). You can force the old behaviour (using
> > the internal speexdsp) by
> >
> > --enable-localspeexdsp
> >
> > in the OPAL configure line.
> 
> I understand the detection of the speex was broken in opal. But it
> wasn't the compilation of opal that was causing the problems it was
> the actual compilation of ekiga. As ekiga uses opal my understanding
> is that it shouldn't need speex directly and hence any linking to the
> speex libraries should be done by opal and not ekiga, and in turn
> ekiga then links to opal.
> 
> Peter