david wrote: 
hollunder@gmx.at wrote:
  
On Mon, 26 Oct 2009 11:46:18 +0000
Daniel Grace <danwgrace@gmail.com> wrote:

    
I have emerged (I'm running gentoo) zynaddsubfx, qsynth, fluidsynth
and hexter, but there is nothing listed in rosegarden under studio ->
manage synth plugins.  How do I get synth plugins to show up in
rosegarden?

Thanks.
      
Afaik Rosegarden can only host DSSI synth plugins. I think Hexter is an
DSSI, zynaddsubfx certainly isn't, don't know about the others.
    

Rosegarden sees ZynAddSubFX and qsynth/fluidsynth as MIDI devices, not 
plugins.
Indeed that's right. There is a fluydsynth-dssi which can operate as a synth device in rosegarden.
Additionally you would be using rosegarden simply as a midi "generator" plugging its midi output into the various synths. This has its pros and cons of course.

Kind regards,
Lorenzo