PAM:
http://www.kernel.org/pub/linux/libs/pam/
+Dante:
+http://www.inet.no/dante
+
+OpenSSH can also use the Dante SOCKS libraries, version 1.1.1pre1 or higher,
+if you have them installed on your system.
+
If you wish to build the GNOME passphrase requester, you will need the GNOME
libraries and headers.
There are a few other options to the configure script:
+--with-rsh=PATH allows you to specify the path to your rsh program.
+Normally ./configure will search the current $PATH for 'rsh'. You
+may need to specify this option if rsh is not in your path or has a
+different name.
+
+--without-pam will disable PAM support. PAM is automatically detected
+and switched on if found.
+
--enable-gnome-askpass will build the GNOME passphrase dialog. You
need a working installation of GNOME, including the development
headers, for this to work.
similar). The file argument refers to the EGD pool file, not the
EGD program itself. Please refer to the EGD documentation.
+--with-lastlog=FILE will specify the location of the lastlog file.
+./configure searches a few locations for lastlog, but may not find
+it if lastlog is installed in a different place.
+
+--without-lastlog will disable lastlog support entirely.
+
--with-kerberos4 will enable Kerberos IV support. You will need to
have the Kerberos libraries and header files installed for this to
work.
--with-md5-passwords will enable the use of MD5 passwords. Enable this
if your operating system uses MD5 passwords without using PAM.
+--with-utmpx enables utmpx support. utmpx support is automatic for
+some platforms.
+
+--without-shadow disables shadow password support.
+
+--with-ipaddr-display forces the use of a numeric IP address in the
+$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-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.
+
If you need to pass special options to the compiler or linker, you
can specify these as enviornment variables before running ./configure.
For example: