The spec 1.9.0 requires gst-plugins-base package to provide
libgstinterfaces-0.10.so.0 library. In real systems, this package provides some
more libraries; as far as we can see, the following libraries from this set are
used by applications from the Moblin Garage:

libgstaudio-0.10.so.0
libgstcdda-0.10.so.0
libgstfft-0.10.so.0
libgstpbutils-0.10.so.0
libgsttag-0.10.so.0
libgstsdp-0.10.so.0
libgstvideo-0.10.so.0

...and the following libraries are provided, though we haven't seen them to be
used yet:

libgstapp-0.10.so.0
libgstnetbuffer-0.10.so.0
libgstriff-0.10.so.0
libgstrtp-0.10.so.0
libgstrtsp-0.10.so.0

We should probably add all these libs; but if the set seems to be too large, we
can first include only used ones.