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Thank you Dan for your explanation.<br>
And thanks everyone for helping.<br>
<br>
Yesterday I tried to recompile the node addon to use it locally but
got into other trouble.<br>
I first recompiled libpd with MULTI=false after Christof's
suggestion (to enable the PDINSTANCE flag) but node-gyp was the
first wall I was still hitting.<br>
It seems there are still some slight updates I need to do in the
addon's code (I got some char * vs const char * error).<br>
Your 3rd point makes obvious sense and I'll try this in the first
place today.<br>
<br>
Joseph<br>
<br>
<div class="moz-cite-prefix">Le 14/02/19 à 13:07, Dan Wilcox a
écrit :<br>
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<div>A few things:</div>
<div><br>
</div>
<div>1. libpd does not use any paths, settings, audio/midi
backends, etc from desktop pd. It is only the core and
less than "pd without the gui." This is by design as it
makes no assumptions about the environment since it can be
running in all manner of places. This means it will only
search paths relative to an opened patch and those added
explicitly by llibpd_add_to_search_path().</div>
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<div>2. Loading an external, whether it was compiled against
0.47 or 0.49 should work as, largely, the pd API has not
changed that much.</div>
<div><br>
</div>
<div>3. libpd needs to be built with -DHAVE_LIBDL in order
to be able to load separate, precompiled externals.</div>
<div><br>
</div>
<div>4. Some environments do *not* allow loading dynamic
libraries for legal/security reasons, ie. iOS. I don't
this is the problem, but it's good to know...</div>
<div><br>
</div>
<div>I image you're issue is more to do with 3.</div>
<div><br>
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<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex">Message:
1<br>
Date: Wed, 13 Feb 2019 15:04:19 +0100<br>
From: Joseph Larralde <<a
href="mailto:joseph.larralde@gmail.com"
target="_blank" moz-do-not-send="true">joseph.larralde@gmail.com</a>><br>
To: Giulio Moro <<a href="mailto:giuliomoro@yahoo.it"
target="_blank" moz-do-not-send="true">giuliomoro@yahoo.it</a>>,
Lucas Cordiviola<br>
<<a href="mailto:lucarda27@hotmail.com"
target="_blank" moz-do-not-send="true">lucarda27@hotmail.com</a>>,
pd-dev <<a href="mailto:pd-dev@lists.iem.at"
target="_blank" moz-do-not-send="true">pd-dev@lists.iem.at</a>><br>
Subject: Re: [PD-dev] libpd search paths<br>
Message-ID: <<a
href="mailto:2354c1c4-e6db-9143-1402-76dcd37b43a8@gmail.com"
target="_blank" moz-do-not-send="true">2354c1c4-e6db-9143-1402-76dcd37b43a8@gmail.com</a>><br>
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<br>
Mmmh you might have found the clue ...<br>
Actually I built the externals against pd version 0.49-0
and it makes <br>
sense that they load properly with the same version.<br>
node-libpd comes with an arm libpd binary which seems to
come from an <br>
older version of pd (added 1 year ago).<br>
I can already tell that it's not an architecture issue
because <br>
everything is working on my pi : the addon is loading
and running <br>
abstractions when used in a node program, and pd is
loading and running <br>
my externals.<br>
Only loading my externals from node-libpd doesn't work.<br>
Still trying to get a local version of node-libpd to
work ... then I'll <br>
replace the libpd.so with one that I'll build from the
latest version.<br>
I can't see another explanation.<br>
Do you know something about incompatibilities between
different versions <br>
of pd ?<br>
The libpd.so used by the addon is probably not older
than 0.47<br>
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-- <br>
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<div>Dan Wilcox</div>
<div>@danomatika<br>
<a href="http://danomatika.com" target="_blank"
moz-do-not-send="true">danomatika.com</a><br>
<a href="http://robotcowboy.com" target="_blank"
moz-do-not-send="true">robotcowboy.com</a></div>
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