+dnl Do you want client-side support for using SASL for authentication?
+dnl Note that this code will be enabled for both POP and SMTP
+AC_ARG_WITH(cyrus-sasl,
+[ --with-cyrus-sasl=<dir> Specify location of Cyrus SASL library for auth])
+if test x"$with_cyrus_sasl" != x -a x"$with_cyrus_sasl" != "no"; then
+ AC_DEFINE(CYRUS_SASL)dnl
+fi
+
+dnl What should be the default editor?
+undefine([editor])dnl
+AC_ARG_WITH(editor,
+[ --with-editor=EDITOR specify the default editor])
+
+if test -n "$with_editor"; then
+ editorpath="$with_editor"
+fi
+
+dnl Set the backup prefix
+undefine([backup-prefix])dnl
+AC_ARG_WITH([hash-backup],
+ [ --with-hash-backup use # as the backup prefix (default: ,)])
+if test x"$with_hash_backup" != x -a x"$with_hash_backup" != x"no"; then
+ backup_prefix="#"
+else
+ backup_prefix=","
+fi
+AC_DEFINE_UNQUOTED(BACKUP_PREFIX, "$backup_prefix")dnl
+