incompatibility between ncurses 5.3 and 5.4

[Adrian Maier]

Hello,

My name is Adrian Maier and I am new to this mailing list. I have joined
because I am experiencing some strange problems regarding ncurses 5.3
vs 5.4.

I have developed a library called libfdk (fdk= forms development kit) that
consist of several classes that allow me to create data entry forms for
browsing and manipulating  the records stored in PostgreSQL tables. 
The user interface is using ncurses (and the I am using the form library).  I 
have developed several applications using libfdk , and they were 
working fine on many linux distributions (Slackware,Debian,Mandrake 10.0). 

After upgrading from Mandrake Linux 10.0 (with ncurses 5.3) to Mandrake 10.1
(with ncurses 5.4)  I have noticed that the programs are no longer working: 
some of the fields are not filled with the values read from the database. 

More specifically: The fields that contain values that should fit in the field 
without scrolling are empty.  The fields that contain values longer than 
the number of visible chracters are filled correctly. 

It looks as if the set_field_buffer is not working anymore, leaving the fields
blank. 

I have built and installed ncurses 5.3 (from sources), and the programs have 
begun to function properly - so I am suspecting an incompatibility with 
ncurses 5.4 . 

Please tell me if there are some functionality changes between 5.3 and 5.4
that could be affecting the fields (i am using the form library). 


Thank you for any tip,
Adrian Maier