[PD] Pd can't find its help files

[Andrea]

Pd-0.43.0 on Linux/x86_64 can't seem to find its help files. I have the
path in ~/.pdsettings :

	path1: /opt/pkg/share/doc/pd/doc

while Pd is installed in /opt/pkg/bin/ . Here's what I see in Pd's
console when trying to get help - for example - on a "float":

------------------------------------------------------------------------
tried float-help.pd and failed
tried /opt/pkg/lib/pd/share/doc/pd/doc/5.reference/float-help.pd and failed
tried /home/ndr/pd-externals/float-help.pd and failed
tried /usr/local/lib/pd-externals/float-help.pd and failed
tried /opt/pkg/lib/pd/extra/float-help.pd and failed
tried help-float.pd and failed
tried /opt/pkg/lib/pd/share/doc/pd/doc/5.reference/help-float.pd and failed
tried /home/ndr/pd-externals/help-float.pd and failed
tried /usr/local/lib/pd-externals/help-float.pd and failed
tried /opt/pkg/lib/pd/extra/help-float.pd and failed
tried float.pd and failed
tried /opt/pkg/lib/pd/share/doc/pd/doc/5.reference/float.pd and failed
tried /home/ndr/pd-externals/float.pd and failed
tried /usr/local/lib/pd-externals/float.pd and failed
tried /opt/pkg/lib/pd/extra/float.pd and failed
sorry, couldn't find help patch for "float.pd"
------------------------------------------------------------------------

So, Pd isn't even looking in /opt/pkg/share/... - path1 notwithstanding.

What else does Pd need to be able to find its own help files?

TIA,
Andrea