rogue: Fix build after ncurses5 changes

Fixes build after commit 3d24ae9b4426bb8adfcb08de57be21fdf0a377f8:
https://hydra.nixos.org/build/69789236

Thanks to dtzWill for the pointer:
https://github.com/NixOS/nixpkgs/pull/34477#issuecomment-367359351

pkgs/games/rogue/default.nix

···
 
   buildInputs = [ ncurses ];
 
+  # Fix build for recent ncurses versions
+  NIX_CFLAGS_COMPILE = [ "-DNCURSES_INTERNALS=1" ];
+
   meta = {
     homepage = http://rogue.rogueforge.net/rogue-5-4/;
     description = "The final version of the original Rogue game developed for the UNIX operating system";