EXTRACTOR_getDefaultLibraries failing

[Vazquez, Jose SPAWAR]

 Hi Christian and Vids,

 

I'm trying to install FOSSology 0.7.0 in a virtual machine running Ubuntu Hardy server edition that had libextractor-dev and libextractor-plugins version 0.5.18a-2 installed.  At run time one of the applications makes a call to EXTRACTOR_getDefaultLibraries and the call is failing every time.  Why will that call ever fail?  By looking at the libextractor code, I can see that there are some default libraries defined.

 

I was able to install and run FOSSology 0.7.0 in another virtual machine running Ubuntu Hardy desktop edition with the same libraries as the other virtual machine.  The only difference between the machines is the edition of the OS.

 

Any help will be appreciated.

 

Regards.

 

Jose Vazquez

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[Christian Grothoff]

AFAIK the only reason why it could fail is that it cannot find the plugins.  
LE uses various strategies to try to locate the plugin files (details asre a
bit OS dependent, but on Linux LE tries to find the path to libextractor.so
from /proc/self/ and then assumes that the plugins are located relative to
that path -- for details, look at the C code).  

Anyway, if the plugins cannot be found (lt_dlopen fails), then NULL is likely
to be returned.  This can usually be fixed by correcting the installation
(not LE's code).  Now, I've not had any reports about the Debian/Ubuntu
packages being broken, so this is a bit odd.  Maybe something quite
installation-specific.

You might want to start by contacting the Ubuntu maintainer to see if it is
something package-specific.

Good luck!

Christian

On Wednesday 21 May 2008 09:49:28 am Vazquez, Jose SPAWAR wrote:

>  Hi Christian and Vids,
>
> I'm trying to install FOSSology 0.7.0 in a virtual machine running Ubuntu
> Hardy server edition that had libextractor-dev and libextractor-plugins
> version 0.5.18a-2 installed.  At run time one of the applications makes a
> call to EXTRACTOR_getDefaultLibraries and the call is failing every time.
> Why will that call ever fail?  By looking at the libextractor code, I can
> see that there are some default libraries defined.
>
> I was able to install and run FOSSology 0.7.0 in another virtual machine
> running Ubuntu Hardy desktop edition with the same libraries as the other
> virtual machine.  The only difference between the machines is the edition
> of the OS.
>
> Any help will be appreciated.
>
> Regards.
>
> Jose Vazquez

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