Added experimental feature NEW_KEYBOARD_HIT.

include/config.h

@@ -564,9 +564,13 @@ typedef unsigned char uchar;
    %N first character of player name
    DUMPLOG_FILE is not used if SYSCF is defined
 */
-#endif
+#endif /* DUMPLOG_FILE */
 
-#endif
+#endif /* DUMPLOG */
+
+/* NEW_KEYBOARD_HIT adds new window proc to return whether keyboard has been hit
+   and character input is available */
+/* #define NEW_KEYBOARD_HIT */
 
 #define USE_ISAAC64 /* Use cross-plattform, bundled RNG */