Actually there isn't a radius.h in that directory. If you go to: http://www.freeradius.org/pam_radius_auth/ to download the pam_radius stuff.
I dug around some more and decided to look at the actual ftp server, where I found ftp://ftp.freeradius.org/pub/radius/pam_radius-1.3.16.tar I downloaded that and it compiled without a problem (duh). Might I suggest a link to the tar file on the ftp server from the download page? Thanks for the help. Roger - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html