- (djm) [acss.c auth-krb5.c auth-options.c auth-pam.c auth-shadow.c]

 - (djm) [acss.c auth-krb5.c auth-options.c auth-pam.c auth-shadow.c]
   [canohost.c channels.c cipher-acss.c defines.h dns.c gss-genr.c]
   [gss-serv-krb5.c gss-serv.c log.h loginrec.c logintest.c readconf.c]
   [servconf.c ssh-keygen.c ssh-keyscan.c ssh-keysign.c ssh-rand-helper.c]
   [ssh.c sshconnect.c sshd.c openbsd-compat/bindresvport.c]
   [openbsd-compat/bsd-arc4random.c openbsd-compat/bsd-misc.c]
   [openbsd-compat/getrrsetbyname.c openbsd-compat/glob.c]
   [openbsd-compat/mktemp.c openbsd-compat/port-linux.c]
   [openbsd-compat/port-tun.c openbsd-compat/readpassphrase.c]
   [openbsd-compat/setproctitle.c openbsd-compat/xmmap.c]
   make the portable tree compile again - sprinkle unistd.h and string.h
   back in. Don't redefine __unused, as it turned out to be used in
   headers on Linux, and replace its use in auth-pam.c with ARGSUSED