Ubuntu 6.06 comdei-source0.7.70 package broken?

I tried installing the comedi packages in the ubuntu 6.06 repositories all seemed to go well until I tried to build the unzipped comedi 0.7.70 source package.
 
./configure appears to succeed, but make fails quickly, with autoconf.h not found.  /usr/include/linux/autoconf.h exists
 
Any clues?  Searching the Ubuntu support forums, it seems there is little interest in comedi and all I found were other cries for help without solutions.
 
--wally.