He already has it... as it shows in the compilation attempt...... what you need is to patch the make file. It's a bug w/ kernel 18.104.22.168.
The make file is located at:
(from the em28xx mail list message: http://mcentral.de/pipermail/em28xx/...il/001481.html
To patch the makefile, download the .obj file (yes, it's a patch) to your v4l-dvb-experimental directory, and in the terminal, in the same directory, execute:
patch -p0 < v4l-dvb-kernel-Makefile-2.6.24.obj