(with-pop, with-kerberos): Need to check Kerberos

libraries in reverse order, so that libraries will appear in the
correct dependency order on the link line (and so that the
configure checks themselves will work properly when early
libraries depend on later ones).

configure.in

@@ -1587,15 +1587,15 @@ AC_CHECK_LIB(ncurses, tparm)
 
 # These tell us which Kerberos-related libraries to use.
 if test "${with_kerberos+set}" = set; then
+  AC_CHECK_LIB(com_err, com_err)
+  AC_CHECK_LIB(crypto, mit_des_cbc_encrypt)
+  AC_CHECK_LIB(krb5, krb5_init_context)
   if test "${with_kerberos5+set}" != set; then
-    AC_CHECK_LIB(krb, krb_get_cred,,
-		 AC_CHECK_LIB(krb4, krb_get_cred))
     AC_CHECK_LIB(des, des_cbc_encrypt,,
 		 AC_CHECK_LIB(des425, des_cbc_encrypt))
+    AC_CHECK_LIB(krb, krb_get_cred,,
+		 AC_CHECK_LIB(krb4, krb_get_cred))
   fi
-  AC_CHECK_LIB(krb5, krb5_init_context)
-  AC_CHECK_LIB(crypto, mit_des_cbc_encrypt)
-  AC_CHECK_LIB(com_err, com_err)
 
   if test "${with_kerberos5+set}" = set; then
     AC_CHECK_HEADERS(krb5.h)