ncurses 5.9 - patch 20110528

ncurses 5.9 - patch 20110528

+ add case to CF_SHARED_OPTS for Interix (patch by Markus Duft).
+ used ncurses/link_test to check for behavior when the terminal has
  not been initialized and when an application passes null pointers
  to the library.  Added checks to cover this (prompted by Redhat
  #707344).
+ modify MKlib_gen.sh to make its main() function call each function
  with zero parameters, to help find inconsistent checking for null
  pointers, etc.