[PD] comport and/or MIDI on Tiny Core Linux

[Antoine Rousseau]

If you cannot find the m_pd.h in your system, you can always import it from
another one into the comport (or whatever) directory.

Anyway thanks for sharing information about Pd + tiny core linux, I would
love to find some time soon for experimenting on this too;
I've always stuck to raspbian until now, but it's always a hassle to turn
it to a read-only file system, to allow disconnecting the power without
having to cleanly shut down the system. Apparently TCL could make it
easier, would you confirm?


Le mar. 27 oct. 2020 à 21:01, Giulio Moro via Pd-list <pd-list at lists.iem.at>
a écrit :

> Each Makefile has a different way of looking for the path where m_pd.h,
> and where it is located on your system depends on how you installed Pd ...
> normally `find /usr/include /usr/local/include -name m_pd.h` will tell you
> where the file is. Once you know where it is, you can inspect the
> `Makefile` to figure out which way to pass this information to it.
> Normally this boils down to passing some options to `make`, such as
> PDINCLUDEDIR=/path/to/containing/folder or CFLAGS="-DPD
> -I/path/to/containing/folder" or others, depending on the content of the
> Makefile (these are two real-world examples). (or you can just hardcode the
> path in the Makefile next to where you see a `-I/somepath `, add `
> -I/path/to/containing/folder` and see if it works.
>
> A link to the source files would be useful if you need further help.
>
>
> Yann Seznec wrote on 27/10/2020 19:34:
> > OK interesting - with the verbose flag on I can see that it is finding
> comport.pd_linux, but it says “/lib/libc.so.6: version ‘GLIBC_2.27’ not
> found (required by /home/tc/comport_test/comport.pd_linux)”
> >
> > I assume that means that it needs to be compiled for the board
> specifically, as you mention.
> >
> > Unfortunately when I try to compile it on the board I get yet another,
> different error. In that case it says “fatal error: m_pd.h: No such file or
> directory”.
> >
> > I think I understand that it’s looking for where Pd is installed, but I
> can’t seem to find where that file is in Tiny Core Linux.
> >
> > Thanks Giuilio!
> >
> >> On Oct 27, 2020, at 3:14 PM, Giulio Moro <giuliomoro at yahoo.it> wrote:
> >>
> >> That's a Linux build, but is it an ARM build compatible with the
> architecture in use?
> >> Try `file /path/to/comport.ld_linux` and make sure you get the same
> result as you'd get for any externals that actually work. You can run `Pd`
> with the verbose flag and that should print some extra info about the paths
> it is attempting to open. In fairness, it should be pretty straightforward
> to just build it from source on the board, which guarantees you get the
> correct binary.
> >>
> >>
> >> Yann Seznec wrote on 27/10/2020 19:01:
> >>> Hello everyone,
> >>> As a follow up to my post a few weeks ago about startup times on
> Raspberry Pi, I have been exploring Tiny Core Linux (v9) on a Pi 3.
> Generally speaking this is super promising, with startup times around 15
> seconds and it seems very stable.
> >>> Some of the things I want to run on this system require external
> libraries. I have managed to get zexy working, for example, by simply
> including the library in the same folder as the patch that uses it.
> >>> I have not had the same success with comport. Including a linux build
> of the comport object in the folder with the project does not work - I get
> a “couldn’t create” error when I launch the patch. I have tried declaring
> the library with the -lib flag, but that gives me an error saying “comport:
> can’t load library”.
> >>> I have installed the USB-Serial extension, though I’m not sure if I’ve
> missed a step there to make it work properly.
> >>> This feels like a long shot, but has anyone managed to get comport
> working on Tiny Core Linux?
> >>> Alternatively, has anyone used USB MIDI with Tiny Core Linux? That
> isn’t working for me either.
> >>> As usual, any tips would be excellent, many thanks.
> >>> Yann
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>
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