ok. I get working pd-vanilla, pdx, pd-l2ork on one archlinux system.
All in /usr/lib/
https://aur.archlinux.org/packages/pd-vanilla/ - vanilla version (cannot rename to puredata, because on official repos is package with the same name) https://aur.archlinux.org/packages/pd-extended/ - binary is named 'pdextended' .... I think maybe it could be pdx ? https://aur.archlinux.org/packages/pd-l2ork/ https://aur.archlinux.org/packages/puredata-utils/ - pdsend, pdreceive
what is missing is 'cyclone', it should be installed separately, but I dont have energy for that.
install all with:
yaourt -S pd-vanilla pd-extended pd-l2ork puredata-utils
You can check for errors.
fk.