The kernel config program has changed slightly. You will need to
	- install a new copy of it
	- reconfig and rebuild your kernels

kern/init_main.c used to initialize pseudo-devices with a whole slew
of these
	#include "sl.h"
	#if NSL > 0
		slattach();
	#endif
The config program now builds a table of pseudo-devices to initialize,
called pdevinit, just like in the magnum branch and in bsd4.4.

 <tdr.

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