Weird "lint -C" behavior

[Jeffrey W Percival]

I am using ULTRIX v. 2.x on a MicroVAX II.

I wanted a version of "atoi" that recognizes C style numbers like 0x3f,
so I modified an old atoi.c and called it "ctoi.c".  When I type

	lint -Cfoo ctoi.c

everything is cool.  When I type

	lint -Cjwp ctoi.c

I get these messages:

	ctoi.c:
	_ctype_ used( llib-ljwp:ctoi.c(59) ), but not defined
	_iob used( llib-port(25) ), but not defined

What causes such a thing?  "jwp" happens to be my login name, so
is something in the environment interfering with this simple task?
-- 
Jeff Percival (jwp at larry.sal.wisc.edu)