updated for version 7.4.429
Problem:    Build fails with fewer features. (Elimar Riesebieter)
Solution:   Add #ifdef.
Added tag v7-4-429 for changeset e98e415ea3b8
updated for version 7.4.430
Problem:    test_listlbr fails when compiled with normal features.
Solution:   Check for the +conceal feature.
Added tag v7-4-430 for changeset f4e9c65a18d4