Performa 475 and OpenBSD 4.0

I am running 4.0 on a Performa 475.  After updating my source code on 
Sep 22 and rebuilding the kernel,  the keyboard no longer worked.  
After I backed out the changed made on 9/17/2006 to 
src/sys/arch/mac68k/mac68k/clock.c and rebuilt the kernel, the keyboard 
  then worked again.  Since I am not familiar with Mac hardware, I am 
not sure if there is a configuration item that I might need to change 
before using the new version of clock.c, so I thought I would ask 
before submitting a bug report.

Carl Bloomsburg

dmesg:

OpenBSD 4.0 (GENERIC) #1: Sat Sep 23 03:48:58 PDT 2006
     
[email protected]:/usr/src/sys/arch/mac68k/compile/GENERIC
Apple Macintosh LC 475, 68040 CPU+MMU+FPU, 4k on-chip physical I/D 
caches
real mem = 37748736 (36864K)
avail mem = 28946432 (28268K)
using 460 buffers containing 1884160 bytes (1840K) of memory
mainbus0 (root)
obio0 at mainbus0
adb0 at obio0: Cuda
asc0 at obio0: Apple Sound Chip
macfb0 at obio0: DAFB, monitor sense 0
macfb0: 1024x768, monochrome display
wsdisplay0 at macfb0 mux 1: console (std, vt100 emulation)
esp0 at obio0 (pseudo-DMA): NCR53C96, 16MHz, SCSI ID 7
scsibus0 at esp0: 8 targets
sd0 at scsibus0 targ 0 lun 0: <SEAGATE, ST32430N, 0492> SCSI1 0/direct 
fixed
sd0: 2047MB, 3992 cyl, 9 head, 116 sec, 512 bytes/sec, 4193415 sec total
cd0 at scsibus0 targ 2 lun 0: <TOSHIBA, CD-ROM XM-5201TA, 3014> SCSI2 
5/cdrom removable
zsc0 at obio0
zstty0 at zsc0 channel 0
zstty1 at zsc0 channel 1
nubus0 at mainbus0
ae0 at nubus0 slot e: address 00:fe:e1:ba:d0:a7, type Farallon EtherMac 
LC-TP, 64KB memory
adb0: 2 targets
akbd0 at adb0 addr 2: keyboard II
wskbd0 at akbd0: console keyboard, using wsdisplay0
ams0 at adb0 addr 3: 1-button, 100 dpi mouse
wsmouse0 at ams0 mux 0
root on sd0a swap on sd0b
rootdev=0x400 rrootdev=0xd00 rawdev=0xd02