[Kde-extra-gear] Review Request

[Kleag]

Hello all,

It seems that kgraphviewer does not compile with GraphViz prior to version 
2.22. To overcome this problem, I have changed the FindGraphViz.cmake and the 
main extragear-graphics CMakeLists.txt to check the version. But, as I'm 
really not a CMakeLists expert, I'd like to have your feelings about this 
patch before commiting.

Regards,

Gaël

P.S.: I got the version checking code from FindQt4.cmake in the cmake package.
-- 
KsirK - a world domination strategy game 
http://techbase.kde.org/Projects/Games/Tactic_and_Strategy/KsirK

KGraphViewer - a GraphViz dot graphs viewer and editor based on a reusable 
part
http://extragear.kde.org/apps/kgraphviewer
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