+ enable_pop=yes
+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, "$backup_prefix")dnl
+
+dnl Do you want support for hesiod
+AC_ARG_WITH(hesiod,
+[ --with-hesiod=PREFIX specify location of Hesiod])
+if test x"$with_hesiod" != x -a x"$with_hesiod" != x"no"; then
+ AC_DEFINE(HESIOD)dnl
+fi
+
+dnl Do you want client-side support for kpop
+AC_ARG_WITH(krb4,
+[ --with-krb4=PREFIX specify location of Kerberos V4 for KPOP support])
+if test x"$with_krb4" != x -a x"$with_krb4" != x"no"; then
+ enable_pop=yes
+ AC_DEFINE(KPOP)dnl
+ AC_DEFINE(KPOP_PRINCIPAL, "pop")dnl
+fi
+
+dnl After we know if we're including apop and kpop support, do pop stuff
+if test x"$enable_pop" = x"yes"; then