--- signal.c
+++ signal.c
@@ -1697,7 +1697,7 @@
 struct tcb *tcp;
 {
 	if (entering(tcp)) {
-		tprintf("%ld, %s", tcp->u_arg[0], signame(tcp->u_arg[1]));
+		tprintf("%d, %s", (pid_t)tcp->u_arg[0], signame(tcp->u_arg[1]));
 	}
 	return 0;
 }
--- strace.c
+++ strace.c
@@ -1461,7 +1461,7 @@
 
 #ifdef LINUX
 	if (zombie != NULL)
-		error = detach(zombie) || error;
+		error = detach(zombie, 0) || error;
 #endif
 
 	return error;
@@ -2035,7 +2035,7 @@
 			fprintf(stderr,
 				"PANIC: handle_group_exit: %d leader %d\n",
 				tcp->pid, leader ? leader->pid : -1);
-		detach(tcp);	/* Already died.  */
+		detach(tcp, 0);	/* Already died.  */
 	}
 	else {
 		/* Mark that we are taking the process down.  */