Re: Why is this library not found?

Hi,

unfortunately it doesn't work without the lib prefix either. I tried 
quite a few combinations:
libgneural
libgneural-0.0.0
gneural
gneural-0.0.0
gneural-0

 From distant memory I recalled that ldconfig needs to be executed to 
avoid LD_LIBRARY_PATH. So I created a conf file for ldconfig at 
/etc/ld.so.conf.d/gneuralnetwork.conf (I'm on Parabola):
/opt/gneural/lib

But I'm out of luck. Do you have any other hints?

On 01.05.2016 16:05, Robert Boehne wrote:
>
> The string you pass to Lt_dlopen should not contain the "lib" prefix.
>
> On May 1, 2016 7:12 AM, "Aljosha Papsch" <[email protected] 
> <mailto:[email protected]>> wrote:
>
>     Hello,
>
>     I librarified gneural_network, patches pending at:
>     https://lists.gnu.org/archive/html/gneuralnetwork/2016-04/msg00015.html
>     In that patch library is called libgneural_network, locally I
>     modified name to libgneural.
>
>     Next I installed gneural_network at /opt:
>
>     /opt/gneural/
>     ├── bin
>     │   └── gneural_network
>     ├── include
>     │   └── gneural
>     │       ├── activation.h
>     │       ├── binom.h
>     │       ├── defines.h
>     │       ├── error.h
>     │       ├── fact.h
>     │       ├── feedforward.h
>     │       ├── genetic_algorithm.h
>     │       ├── gradient_descent.h
>     │       ├── includes.h
>     │       ├── load.h
>     │       ├── msmco.h
>     │       ├── parser.h
>     │       ├── randomize.h
>     │       ├── random_search.h
>     │       ├── rnd.h
>     │       ├── save.h
>     │       ├── simulated_annealing.h
>     │       └── structures.h
>     └── lib
>         ├── libgneural.a
>         ├── libgneural.la <http://libgneural.la>
>         ├── libgneural.so -> libgneural.so.0.0.0
>         ├── libgneural.so.0 -> libgneural.so.0.0.0
>         └── libgneural.so.0.0.0
>
>     I try to load that library with lt_dlopen:
>
>     #include <ltdl.h>
>     #include <stdio.h>
>
>     int
>     main (int argc, char** argv)
>     {
>       lt_dlhandle handle;
>       lt_dlinit ();
>       handle = lt_dlopen ("libgneural");
>       if (handle != NULL)
>         {
>           printf ("Loaded library\n");
>           lt_dlclose (handle);
>         }
>       else
>         {
>           printf (lt_dlerror ());
>           printf ("\n");
>         }
>       return 0;
>     }
>
>     This program fails with error message: file not found. What am I
>     doing wrong? The command line is:
>     $ gcc -l ltdl -o dlopen dlopen.c
>     $ LD_LIBRARY_PATH=/opt/gneural/lib ./dlopen
>
>     Best regards
>     Aljosha Papsch
>
>     _______________________________________________
>     https://lists.gnu.org/mailman/listinfo/libtool
>

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