+/* Define this if you want to use PAM (Pluggable Authentication Modules)
+ * to lock/unlock the screen, instead of standard /etc/passwd authentication.
+ */
+#undef HAVE_PAM
+
+/* If PAM is being used, this is the name of the PAM service that xscreensaver
+ * will authenticate as. The default is "xscreensaver", which means that the
+ * PAM library will look for an "xscreensaver" line in /etc/pam.conf, or (on
+ * recent Linux systems) will look for a file called /etc/pam.d/xscreensaver.
+ * Some systems might already have a PAM installation that is configured for
+ * xlock, so setting this to "xlock" would also work in that case.
+ */
+#define PAM_SERVICE_NAME "xscreensaver"