Command explanations
--sysconfigdir=/etc/ssh : This prevents the
configuration files from going to /usr/etc.
--with-md5-passwords : This is required
if you made the changes recommended by the shadowpasswd_plus lfs hint on
your ssh server when you installed the Shadow Password Suite or if you
access a ssh server that authenticates by user passwords encrypted with
md5.
--libexecdir=/usr/sbin : OpenSSH puts
programs called by programs in /usr/libexec. sftp-server is a sshd
utility and ssh-askpass is a ssh-add utility that is installed as a
link to X11-ssh-askpass. Both of these should go in /usr/sbin not /usr/libexec.