I managed to get Houdini 17.5 to install and run with a modified version of this PKGBUILD. It's not the prettiest, but you can find it here:
I also had to alter the PKGBUILD for python-rpyc to get this to work. You can find that here:
I don't think I did a particularly great job on these alterations since I don't normally create and maintain packages, so use at your own risk.
@AWhetter -- that being said, I'd be happy to spin up more on package maintenance if you want to pass the package to me.
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AWhetter commented on 2017-11-16 06:00
I've updated this for Houdini 16 but because PySide2 currently doesn't install, I have a hacky setup where I've downloaded and unpacked python2-pyqt5, pyqt5-common, and python2-sip from here (https://archive.archlinux.org/repos/2016/06/15/extra/os/x86_64/). I've then edited /opt/houdini/houdini/python2.7libs/hutil/Qt.py line 318 from "if preferred:" to "if False:" to get houdini to try using PyQt5 instead of just PySide2. Finally I run houdini with `PYTHONPATH=</path/to/unpacked/pyqt/stuff>/usr/lib/python2.7/site-packages/ /opt/houdini/bin/houdini`.