SWIG csharp: undefined symbol: ps_args

[Jenni Correra]

Guys, help

I'm trying to build a wrapper from the sources for c#, but I get an error when running test.exe: undefined symbol: ps_args

My sequence of steps:
1) git clone latest sources from sphinxbase and pocketsphinx repositories
2) open in bash pocketsphinx\swig\csharp directory
3) make
4) Error on step mono test.exe: undefined symbol: ps_args

I also tried the solution described here: https://sourceforge.net/p/cmusphinx/discussion/help/thread/cc2c56ee/ So I checked what I havn't sphinx libs in /usr/lib folder, it's seems like I have copy only in usr/local/lib

What's wrong?

[Nickolay V. Shmyrev]

You probably did not setup pocketsphinx correctly (you did not define the variables LD_LIBRARY_PATH and PKG_CONFIG_PATH). You need to go through tutorial first

http://cmusphinx.github.io/wiki/tutorialpocketsphinx

[Jenni Correra]

I tried it, but it's still not work. Anyway, I checked ld.so.conf.d and my system already use usr/local/lib directory also I runed ldconfig.

And, pocketsphinx_continuous works fine, so as far as I understand there are no problems with libraries

[Nickolay V. Shmyrev]

You have problem at compile time. You need to check pkg-config, not ld.so.conf.

[Jenni Correra]

I checked it too:
$echo $PKG_CONFIG_PATH
/usr/local/lib/pkgconfig

[Nickolay V. Shmyrev]

Ok, run make once again and provide the complete output

[Jenni Correra]

Thank you, my full output in, wrapper make in the end

[Nickolay V. Shmyrev]

Ok, run

ldd /home/stasisx/Sphinx/pocketsphinx/swig/csharp/libpocketsphinxwrap.so

and provide the output.

[Jenni Correra]

    linux-vdso.so.1 =>  (0x00007ffe90da9000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f689ce38000)
    /lib64/ld-linux-x86-64.so.2 (0x000055d433231000)

[Jenni Correra]

Okay, it's funny - I checked in the clean Linux Mint, which I'm using at the moment, and my problem was repeated again, and then for interest, I checked in a clean Debian Linux and it works!

[Jenni Correra]

However, after several days of research and reading the manuals, I found out that the wrapper works when I preload libraries by this:

export LD_PRELOAD=/usr/local/lib/libsphinxbase.so:/usr/local/lib/libpocketsphinx.so:/usr/local/lib/libsphinxad.so:$LD_PRELOAD

However, I have not yet understood why the set of LD_LIBRARY_PATH does not work, so I will very glad if somebody explain me

[Nickolay V. Shmyrev]

LD_LIBRARY_PATH does not work because library is not linked during compilation. pkg-config --libs pocketsphinx output does not list proper libraries. Maybe because pocketsphinx.pc file is corrupted somehow. You can check the file contents and pkg-config output as required by pocketsphinx tutorial.