Soprano: optional or mandatory?

[Josef Spillner]

Hello,

According to dashboard, everything is fine in kdelibs, but again there are 
troubles when trying to compile with the minimal set of dependencies. I 
remember a discussion about the impossibility of testing all combinations of 
dependencies, but I think that having a minimal and a full set of fulfilled 
deps could catch some errors early without costing too much effort.

Josef

-----------------------------------------------------------------------------
-- The following OPTIONAL packages could NOT be located on your system.
-- Consider installing them to enable more features from this software.
-----------------------------------------------------------------------------
[...]
   * Soprano (2.4.63 or higher)  <http://soprano.sourceforge.net>
     Semantic Desktop Storing
     Provide metadata support (for semantic desktop).
[...]

-----------------------------------------------------------------------------

CMake Error: The following variables are used in this project, but they are 
set to NOTFOUND.
Please set them or make sure they are set and tested correctly in the CMake 
files:
SOPRANO_INCLUDE_DIR (ADVANCED)
   used as include directory in directory /data/build/kde/src/kdelibs/kfile
   used as include directory in directory 
/data/build/kde/src/kdelibs/kfile/tests
   used as include directory in directory /data/build/kde/src/kdelibs/kparts