ncursesw and forms library return empty form_buffer on Solaris

[Alfred Fung]

We are compiling ncurses with wide-character support and the forms library on 
Linux, HP, AIX, and Solaris.  All the platforms are working except for Solaris. 
 

We find that we get empty field values from the form.  This can also be 
reproduced using the included forms_demo program.
Next we tried compiling on Solaris without wide-character support and it works. 
 This is happening in both ncurses 5.5 and 5.6.

Help in resolving this issue would be much appreciated.

Thanks,
  Alfred