on netbsd alpha -current

cd /usr/src
make includes && make depend && make

...
all ===> libexec/ftpd
cc -pipe -O2  -Wall -Wstrict-prototypes -Wmissing-prototypes 
-Wpointer-arith -We
rror   -DHASSETPROCTITLE -DINET6 -DSKEY -DKERBEROS -c util.c
cc1: warnings being treated as errors
In file included from util.c:55:
extern.h:118: warning: `struct timeval' declared inside parameter list
extern.h:118: warning: its scope is only this definition or declaration,
extern.h:118: warning: which is probably not what you want.
In file included from util.c:55:
extern.h:216: syntax error before `errcatch'
extern.h:216: warning: type defaults to `int' in declaration of `errcatch'
extern.h:216: warning: data definition has no type or storage class
util.c: In function `logcmd':
util.c:71: number of arguments doesn't match prototype
extern.h:118: prototype declaration
*** Error code 1

Stop.