libx32ncursesw5-dev 6.1-1ubuntu1.18.04.1 (amd64 binary) in ubuntu bionic

 The ncurses library routines are a terminal-independent method of
 updating character screens with reasonable optimization.
 .
 This package contains the header files, static libraries
 and symbolic links that developers using ncursesw will need.
 .
 This package includes support for wide characters.
 This package supports the x32 ABI variant of your system's
 architecture.