ncurses in Perl6

output

Cannot locate native library '/usr/lib64/libncurses.so'
  in method postcircumfix:<( )> at lib/NativeCall.pm6:122
  in  at src/gen/BOOTSTRAP.pm:827
  in any  at src/gen/BOOTSTRAP.pm:811
  in block  at testcurse.p6:14

testcures.p6

# test app

use v6;
use NativeCall;

class WINDOW is repr('CPointer') { }

sub initscr()   returns WINDOW is native('/usr/lib64/libncurses.so') { * }
sub printw(Str) returns int32  is native('/usr/lib64/libncurses.so') { * }
sub ncrefresh()   returns WINDOW is native('/usr/lib64/libncurses.so') is symbol('refresh') { * }
sub getch()     returns int32  is native('/usr/lib64/libncurses.so') { * }
sub endwin()    returns int32  is native('/usr/lib64/libncurses.so') { * } 

initscr();
printw("Hello World!");
ncrefresh();
getch();
endwin();