identd.c: In function `main':
identd.c:579: warning: passing arg 2 of `signal' from incompatible pointer type
cc -O -DBSD386  -DINCLUDE_EXTENSIONS -DHAVE_KVM  -c parse.c
cc -c -I. -O -DBSD386  -DINCLUDE_EXTENSIONS -DHAVE_KVM kernel/386bsd.c
kernel/386bsd.c:35: sys/kinfo.h: No such file or directory
*** Error code 1

Stop.
*** Error code 1

Stop.

        Above are the message when I try to install pidentd-2.7a7 on NetBSD
i386. How critical is the warning on line 02 and where is the file 'kinfo.h'
can I get from? Thanks.
-man-