Hi,

My source files under sys/dev/acpi/acpica/Subsystem were caught up
with acpica-unix-20030328.tar.gz, and it works fine for me.
 
This patch includes for sys/dev/acpi/acpi_ec.c.
I don't have acpi ec device,so I don't test it.
   
  I have put that patch at:
      http://www.ann.hi-ho.ne.jp/~kanaoka/acpica-20030328.diff.gz

	% /usr/bin/md5 acpica-20030328.diff.gz                         
	MD5 (acpica-20030328.diff.gz) = b329e6d0877e56d51c4cf4e317ea62a8

You can try it like below:
  
   	# cd /usr/src
   	# zcat /somewhere/acpica-20030328.diff.gz | patch -p1 -E
  	# cd /sys/arch/i386/conf
   	# config your-config;cd ../compile/your-config
  	# make depend;make;make install
  
You can find release note for latest ACPI CA(20030328) code at:
      http://sourceforge.net/project/shownotes.php?release_id=149501

 
If you are interested in it,How about trying it?
Best Regards!
---
  Masanori Kanaoka	kanaoka@ann.hi-ho.ne.jp