updated for version 7.4.058
Problem:    Warnings on 64 bit Windows.
Solution:   Add type casts. (Mike Williams)
Added tag v7-4-058 for changeset fa8447ec5823
updated for version 7.4.059
Problem:    set_last_cursor() may encounter w_buffer being NULL.  (Matt
	    Mkaniaris)
Solution:   Check for NULL.
Added tag v7-4-059 for changeset 2a72805a3038