% ldd /usr/local/lib/gstreamer-0.8/libgstvolume.so 
        libgstcontrol-0.8.so.1 
        libgstreamer-0.8.so.1 
        libgobject-2.0.so.0 
        libgmodule-2.0.so.0 
        libdl.so.2 
        libgthread-2.0.so.0 
        libxml2.so.2 
        libpthread.so.0 
        libz.so.1 
        libm.so.6 
        libglib-2.0.so.0 
        libgstinterfaces-0.8.so.0 
        libc.so.6 
        libpopt.so.0 
        /lib/ld-linux.so.2 
----->  libSM.so.6   <------------------ 
----->  libICE.so.6  <------------------ 
----->  libX11.so.6  <------------------ 
 
Is there any particular reason why 'volume' needs to depend on X libraries 
that I'm missing? 
 
I suppose it's one of the video interfaces that makes libgstinterfaces depend 
on xlibs, and consequently volume as well, but still, this doesn't really look 
right to me. It means in effect that 'alsasink' or 'osssink' also depend on 
xlibs. 
 
I think the interfaces that draw in such dependencies should be put into their 
own libgstxinterfaces or libgstvideointerfaces or whatever. 
 
Cheers 
 -Tim