libncursesw6-dbg 6.1+20180210-4ubuntu1 (armhf binary) in ubuntu cosmic

 The ncurses library routines are a terminal-independent method of
 updating character screens with reasonable optimization.
 .
 This package contains special library versions of ncursesw suitable
 for debugging and profiling. Also included are detached debugging
 symbols for libncursesw6.
 .
 This package includes support for wide characters.