along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
-/* Nonzero means use ^S/^Q as cretinous flow control. */
-extern int flow_control;
-
/* Nonzero means use interrupt-driven input. */
-extern int interrupt_input;
+extern bool interrupt_input;
/* Nonzero while interrupts are temporarily deferred during redisplay. */
-extern int interrupts_deferred;
-
-/* Terminal has meta key */
-extern int meta_key;
-
+extern bool interrupts_deferred;