CMake Error: PkgConfig_DIR is not set.  It must be set to the directory containing PkgConfigConfig.cmake in order to use PkgConfig.
CMake Error: Error in cmake code at
/home/kde-devel/kde/src/kdesupport/soprano/cmake/modules/FindRedland.cmake:27:
Unknown CMake command "pkg_check_modules".
-- Configuring done