openexr are requested, but not found on your system

I received the following message while trying to build arts from svn 1225868: "openexr are requested, but not found on your system" Serghei, I know English is not your primary language :). I suggest the following text: "The openexr package was requested but not found on your system." I have nothing against the warning but the build should not have stopped. There does not seem to be option in the arts CMakeLists.txt file to build without OpenEXR nor does the build simply pass through when not finding that package. The OpenEXR package is commonly installed but has never been required in KDE 3.5.10 or Trinity. If that package is now a Trinity prerequisite, then let's pass the word here and I'll be happy to update the wiki. :) Darrell