libx32ncurses6 6.1+20180210-4ubuntu1 (amd64 binary) in ubuntu cosmic

 The ncurses library routines are a terminal-independent method of
 updating character screens with reasonable optimization.
 .
 This package contains the shared libraries necessary to run programs
 compiled with ncurses.
 .
 This package supports the x32 ABI variant of your system's
 architecture.