Virtuoso Backend problem kde 4.4

James Tyrer jrtyrer at
Mon Feb 22 00:34:14 GMT 2010

cliffhanger at wrote:
> Hi
> I'm compiling KDE4.4  I can't get kdebase-runtime to locate the 
> Virtuoso storage backend for Soprano, despite it the fact that it was
>  built with kdesupport.
IIUC, you built the Soprano in KDESupport.

Was that: KDESupport-for-4.4?  BTW this has recently been updated
although this probably isn't related to your problem.

> -- The following OPTIONAL packages could NOT be located on your
> system. -- Consider installing them to enable more features from this
> software. 
> -------------------------------------------------------------------------
>  ---- * Soprano Virtuoso Backend  <> 
> Virtuoso storage backend for Soprano The Soprano Virtuoso backend is
> required to run the Nepomuk semantic desktop system.
> Has anyone else had this problem?   Or could someone advise me about
>  how to get cmake find this backend?
Reading from my instructions:

You need to install: libiodbc-3.52.7 before you install Virtuoso.

Then install: virtuoso-opensource-6.1.0.

I suggest that you set these extra configure parameters:


{add the paths for your Java development kit and libiodbc prefixes|

and if you are building it only for KDE use, you don't need VADs so add:



	rm CMakeCache.txt

and try building KDESupport again.

James Tyrer

Linux (mostly) From Scratch
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