Compiling puredata externals

giuliomoro So if i am using cyclone for example i will need cyclone.pd_linux plus object.pd_linux for each object i need? I tried to compile in the IDE the cyclone_lib.c file and it generated a cyclone_lib.pd_linux but it still prompts the same error: couldn't create...

Would you mind posting the process in steps or something similar?

londonpride I also tried to do it without the library object.
- uploaded the object.c
- uploaded a Makefile specific for the object.
- uploaded the needed headers and run the makefile in the IDE console.
Worked like a charm for some objects but others would still prompt: couldn't create...

londonpride Worked like a charm for some objects but others would still prompt: couldn't create...

What objects fail to create?

londonpride uploaded a Makefile specific for the object.

How did you generate the Makefile?

londonpride Would you mind posting the process in steps or something similar?

Was this not good enough?

giuliomoro i compiled [cyclone/cycle~] using the .c source code and worked perfectly, [cyclone/gate~] on the other hand compiled and created the .pd_linux file but would still fail to generate.
I created the makefile in sublime text and it worked for [cyclone/cycle~]
I am sorry if you misunderstood my asking for the steps, i didn't mean to diminish your explanation or anything is just that i am a bit of a newbie using pd on bela. I've only worked with c++ on bela before.

What is in these Makefiles? Why don't you use the one that comes with the project?

Hello, I'm having a few issues compiling pd externals. I've worked through this post without success and I eventually found this very helpful guide: https://forum.bela.io/d/580-compiling-pd-externals-a-guide which clears most things up.

However, I'm still getting errors - "make: *** No targets specified and no makefile found. Stop" for [cyclone], [comport] and [list-abs] objects. I read the post above on [cyclone] and have taken the following steps:

• Updated Bela code
• Downloaded the PD fork and copied it into /root/pure-data
• then went back to Bela/projects/pd-externals/externals/cyclone and tried
  'make PDINCLUDEDIR=/root/pure-data/src/ PDLIBDIR=/root/Bela/projects/pd-externals install'

But I'm getting "make: *** No rule to make target "install". Stop.

Any ideas?

what is in the folder Bela/projects/pd-externals/externals/cyclone ? You need to run the make ... install command from within the folder obtained cloning the cyclone repo: https://github.com/porres/pd-cyclone.git

Great, thanks. Managed to successfully compile [cyclone] and [list-abs] objects now.

Having a slight issue with the cyclone -- coll object though. It turns the project window blank (although it doesn't say 'couldn't create' in the console). Not sure what's going on with it.

Also I haven't managed to compile the [comport] object. I can't find a Makefile for it. But in the readme file it says:

compile:

 Unix (Linux):   
  make pd_linux,  make pd_irix5, make pd_irix6, make pd_darwin
  should produce a comport.pd_linux, .... 

this is all new to me so not really sure what to do with that... do I still need a makefile from somewhere?

Where is the source code for the [comport] object?

emerson Having a slight issue with the cyclone -- coll object though. It turns the project window blank (although it doesn't say 'couldn't create' in the console). Not sure what's going on with it.

I cannot reproduce this. Can you send the Pd file?

Ok, so now got the source code for [comport] from the puredata.info site, which has a make file in it. Copied the new comport folder to the pd-externals folder on Bela but getting:

Makefile:191: recipe for target 'comport.o' failed
make: *** [comport.o] Error 1
root@bela:~/Bela/projects/pd-externals/pd-comport# make PD_INCLUDE=/root/Bela/projects/pd-externals
 -I"/root/Bela/projects/pd-externals/pd" -Wall -W -g -DPD -DVERSION='"0.2"' -fPIC -O6 -funroll-loops -fomit-frame-pointer -o "comport.o" -c "comport.c"
comport.c:24:18: fatal error: m_pd.h: No such file or directory
 #include "m_pd.h"
                  ^
compilation terminated.
Makefile:191: recipe for target 'comport.o' failed 

for whatever I try. It says to use PD_INCLUDE = $(PD_PATH)/include in the make file.

I tried:
make PD_INCLUDE=/usr/local/include/libpd/
make PD_INCLUDE=/root/Bela/projects/pd-externals install
make PD_INCLUDE=/usr/local/include/libpd PDLIBDIR=/root/Bela/projects/pd-externals install
make PD_INCLUDE=/root/pure-data/src/ PDLIBDIR=/root/Bela/projects/pd-externals install
make PDINCLUDEDIR=/root/pure-data/src/ PDLIBDIR=/root/Bela/projects/pd-externals install

This is what's in the [comport] folder:

CHANGES.txt  Makefile    comport-help.pd  comport-stress-test.pd  comport.dsp  
comport.pd_darwin LICENSE.txt  README.txt  comport-meta.pd  comport.c               
comport.dsw  makefile_win

Here's the pd patch for the cyclone/coll object. I put the Coll object in the patch first, if that makes a difference? Sorry to post so many probs!

#N canvas 771 243 450 300 10;
#X obj 18 161 cyclone/coll;
#C restore;
#X obj 16 192 print coll;
#X obj 34 24 loadbang;
#X msg 36 49 in 11;
#X obj 37 74 s bela_setDigital;
#X obj 70 102 r bela_digitalIn11;
#X msg 68 126 next;
#X msg 19 128 1;
#X connect 0 0 1 0;
#X connect 2 0 3 0;
#X connect 2 0 7 0;
#X connect 3 0 4 0;
#X connect 5 0 6 0;
#X connect 6 0 0 0;
#X connect 7 0 0 0;

Here's what happens when I run the patch in the IDE:

How do you generate that patch? With Pd vanilla? Pd vanilla does not recognize the #C restore; line, so maybe that is what is crashing the preview in the browser? Either way, it's not a big deal: you only miss the preview, but the patch will still run fine. The two things are separate.

giuliomoro Yes that's the link to the source code I used. Thanks for the advice on the make file, I'll give that a try.

giuliomoro Ha, good to know, thanks. I thought the patch wasn't running properly because it wasn't printing the coll data to the console....but just figured out it's because I forgot to include the .txt file in the Bela project!! All sorted now, thanks.

emerson
Incidentally, this sort of variability between makefiles is exactly what makes it hard to write a comprehensive, one-size-fits-all Pd externals compiling guide: you will often have to rely in manual inspection to accommodate for these sort of differences

Anyone attempted compiling PuRestJson? Again, I'm a little bit out of my depth with this process - been staring at it for a while so interested to know if this is even possible with its dependencies:

https://github.com/residuum/PuRestJson/wiki/Compilation

I followed their instructions:

You need build-essentials, header files for puredata, libjson-c, libcurl4, liboauth. If you have Debian or a derivative (e.g. Ubuntu, Linux Mint), you can install the build utils and needed headers with apt-get install build-essential puredata-dev libjson-c-dev libcurl4-openssl-dev liboauth-dev. If you are not root, prefix the command with sudo.

If the board is connected to the internet, this is straightforward. Just run apt-get install build-essential libjson-c-dev libcurl4-openssl-dev liboauth-dev (note that I removed puredata-dev as we already have libpd on the board). If it is not, I just put together this script the other day that will do just that (tested on Mac, should work on Linux, possibly on Windows): https://github.com/giuliomoro/bela-random/blob/master/cross-apt-get-install.sh . Using this script, I run

./cross-apt-get-install.sh libjson-c-dev libcurl4-openssl-dev liboauth-dev

make sure this is successful.

Back to their instructions:

Drop the sources in a directory and run make. You will get files with a suffix of pd_linux for each object (json-decode.pd_linux, json-encode.pd_linux, rest.pd_linux, oauth.pd_linux). These are needed to use the library.

So I clone the repo on the host:

git clone --recursive https://github.com/residuum/PuRestJson

(I need the --recursive because it has some subrepo) and then I copy this across to the board:

scp -r PuRestJson root@192.168.7.2

Then I go back on the board and, as instructed, I run make:

ssh root@192.168.7.2 

(Note that all the commands after this will be run on the board.)

cd PuRestJson
make

in less than one minute, I obtain a message : target all in lib purest_json completed. This gives me hope. Then I run ls and I see that the .pd_linux files have indeed been generated. Seems like success!

Testing:
I have no idea what these files are supposed to do, so I just make sure they get loaded.

First: copy somewhere where they can be found. According to the Bela wiki I can just copy these files to the ~/Bela/projects/pd-externals folder in order for al the projects to be able to discover them. So, first I create such folder:

mkdir -p ~/Bela/projects/pd-externals

and then I copy the files there:

cp ~/PuRestJson/*.pd_linux ~/Bela/projects/pd-externals

Last, I create a Pd patch on my computer which uses these externals, then create a new Pd project in the Bela IDE, and I drag the newly created patch on it. I run the project and... there are no errors on the console, which means everything went fine: the objects are correctly loaded! There are also some lines that show that they were indeed loaded correctly.

Now, whether they work or not, I have no idea. You shall find out. If they don't do things cleverly and they run non-realtime code in the audio thread (as it's commonplace in Pd) then bad news: you may have to rewrite part of them. But maybe they don't and everything is nice!

(It really takes 5 minutes to do all the above. It took me about 30 minutes writing it down, though).

Thanks so much for going through this. Without an internet connection on the board I was a bit stuck, so looks like a great solution. I've just tried to run your script from my mac but I get the error message: xargs: wget: No such file or directory. Have I missed something?

I guess you don't have wget installed. I rewrote it to use curl instead. Pull the updated version and try again.