+--with-utmpx enables utmpx support. utmpx support is automatic for
+some platforms.
+
+--without-shadow disables shadow password support.
+
+--with-ipaddr-display forces the use of a numeric IP address in the
+$DISPLAY environment variable. Some broken systems need this.
+
+--with-default-path=PATH allows you to specify a default $PATH for sessions
+started by sshd.
+
+--with-pid-dir=PATH specifies the directory in which the ssh.pid file is
+created.
+
+--with-xauth=PATH specifies the location of the xauth binary
+
+--with-dante[=DIR] will enable Dante SOCKS library support. If the Dante
+libsocks library isn't installed in a library searched by the compiler,
+add the directory name as the option.
+
+--with-ipv4-default instructs OpenSSH to use IPv4 by default for new
+connections. Normally OpenSSH will try attempt to lookup both IPv6 and
+IPv4 addresses. On Linux/glibc-2.1.2 this causes long delays in name
+resolution. If this option is specified, you can still attempt to
+connect to IPv6 addresses using the command line option '-6'.
+
+--with-ssl-dir=DIR allows you to specify where your OpenSSL libraries
+are installed.
+
+If you need to pass special options to the compiler or linker, you
+can specify these as enviornment variables before running ./configure.
+For example:
+
+CFLAGS="-O -m486" LFLAGS="-s" ./configure