[opensuse-packaging] Check for KDE SC version inside SPEC files

Hello list, I am searching for a way to determine the KDE SC version of the build system inside a SPEC file. In the past I used this way: http://bit.ly/eABmJb But this does not work anymore in recent openSUSE releases or with recent versions of KDE SC - I do not know the real reason. Is there a better way to check for the used version? Good would be a macro like suse_version, that can be used in conditionals. Best regards Buschmann