AFAIK, the iemlib build system creates an iemlib1.pd_linux and
iemlib2.pd_linux. For Pd-extended, all of the objects and abstractions
are all put into an 'iemlib' libdir. So perhaps the first could be
packaged as pd-iemlib1, pd-iemlib2, etc. and the 'iemlib' libdir could
be pd-iemlib.
The 'iemlib' libdir could also be pdextended-iemlib, but then it will be
annoying to use that library in anything but Pd-extended.
.hc