Hi all

I'm testing a plugin that I've written. It works fine on OSX and now I'm
testing it on Linux. I've gotten my code to build into a shared object
library but I'm not having any success adding this to the csound runtime
program. When I use the --opcode-lib option to add the library I just get

...
Creating orchestra
Creating score
Loading command-line libraries:
rtaudio: ALSA module enabled
rtmidi: ALSA Raw MIDI module enabled
....

Which is followed by an error message when the parser reaches CSD code which
uses my opcode. I notice that there is no output giving an error (or
otherwise) after "Loading command-line libraries:". Incidentally if I use an
incorrect file name, i.e. --opcode-lib=adsada.so the output is the same.

Basically I've no idea how to find out why the library isn't being loaded as
there's no error information. Anyone any idea how I might be able to do
this?


Thanks for your time
Simon 



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Hi Mike

Thanks for your reply. Actually I was compiling for a 32bit architecture
without thinking. I assume Csound is built for x64 as that's I'm running
Ubuntu 64bit. Totally forgot about that. However after re-building for x64
there is no change in how Csound responds. The opcode plugin shared object
library is in the current directory when I run the Csound binary so I don't
see how the OPCODE6_DIR64 variable would effect it's working unless I'm
missing something?

By the way my build command is as follows in case that shows up something:

g++ -shared -I
/home/digithree/Documents/Leap/LeapDeveloperKit/LeapSDK/include -I
/usr/local/include/csound -o libLeapIntoCsound.so LeapIntoCSound.cpp -L
/home/digithree/Documents/Leap/LeapDeveloperKit/LeapSDK/lib/x64 -lLeap -fPIC
-m64

(it's a Leap Motion plugin as you might have guessed!)


Thanks for your time
Simon



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Hi jpff

-v doesn't give me much extra information, except the output now reads:

...
STARTING FILE
Creating options
decode_long opcode-lib=libLeapIntoCsound.so
Creating orchestra
Creating score
Loading command-line libraries:
rtaudio: ALSA module enabled
rtmidi: ALSA Raw MIDI module enabled
Calling preprocess on >>
...

and then proceeds to attempts to parse the CSD program in extreme detail
until it reaches the line containing my opcode. Thanks though



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Thank you, I am aware of the distinction, I thought you were talking about
architecture. My plugin is set to use double precision floats.

I was able to fix the problem of registration by moving my plugin shared
object file to the /usr/local/lib/csound/plugins-6.0 directory with all the
other plugins and also setting the environment variable as you suggested. I
was then able to get the following error:

WARNING: could not open library
'/usr/local/lib/csound/plugins-6.0/libLeapIntoCsound.so' (libLeap.so: cannot
open shared object file: No such file or directory)

which told me the problem was with resolving a dependency of my plugin.
After registering this dependency (libLeap.so) with the system (by moving it
to /usr/local/lib and executing ldconfig to update the linker list) my
plugin now works.

I very much appreciate your help, thank you again.
Simon



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I'm glad I could help,
Mike