Syntax error at "export all;"

Hello, I just started configuring my first installation of bird. However, I even do not get running the simples samples. My conf file protocol kernel { export all; } does fail. Bird complains "syntax error" (indicating the line number with "export all".) If I comment out that line, bird complains "Channel not specified" (indicating the line with the closing }.) I wonder, if protocol "kernel" is known by my bird installation. When "configure" had run, it showed a lot of protocols, but "kernel". Maybe "kernel" is included anyway. Any hints for me? Roger.