---with-pam enables PAM support. If PAM support is compiled in, it must
-also be enabled in sshd_config (refer to the UsePAM directive).
+--with-rsh=PATH allows you to specify the path to your rsh program.
+Normally ./configure will search the current $PATH for 'rsh'. You
+may need to specify this option if rsh is not in your path or has a
+different name.
+
+--with-pam enables PAM support.
+
+--enable-gnome-askpass will build the GNOME passphrase dialog. You
+need a working installation of GNOME, including the development
+headers, for this to work.
+
+--with-random=/some/file allows you to specify an alternate source of
+random numbers (the default is /dev/urandom). Unless you are absolutely
+sure of what you are doing, it is best to leave this alone.