ending a ncurses proggy is not simple

essai.c

@@ -126,7 +126,7 @@ fclose(fp);
 return 0;
 }
 /* --------------------------------------------------------------- */
-static void finish(int signal)
+static void finish(void)
 {
 endwin();       
 fprintf(stderr, "end of pid %d\n", getpid());
@@ -180,16 +180,18 @@ sleep(1);
 initscr();
 nonl();         cbreak();       noecho();
 keypad(stdscr, TRUE);           /* acces aux touches 'curseur' */
+atexit(finish);
+
 sprintf(ligne, " Demonstrator pid:%d %s ", getpid(), device);
 fond_ecran(ligne);
 
+
 traite_les_messages(serial_in, nbreloops, K);
 
 /*
  *      plop, on a fini, il faut restaurer la console
  */
-finish(0);
-
+finish();
 
 return 0;
 }