Update grhino to 0.16.1:
- Fix compilation error with newer GCC versions.
- Backport changes from Debian by Vincent Legout, Martin Michlmayr.
- Fix bad interaction between edit board and preference dialog box.
- Fix bad interaction between edit board and toolbar.
- Fix midgame search when the game finishes without filling the board.

Add patch-Makefile.in to fix PR pkg/34215

Remove patch-book.cc patch-game.cc patch-log__proc.h as:

        Change from Debian port by Martin Michlmayr <tbm@cyrius.com>
        * book.cc, game.cc, log_proc.h: Include <cstdlib>.

(prlw1)