__OpenBSD__ around pledge().

client.c

@@ -276,6 +276,7 @@ client_main(struct event_base *base, int argc, char **argv, int flags)
 	if ((ttynam = ttyname(STDIN_FILENO)) == NULL)
 		ttynam = "";
 
+#ifdef __OpenBSD__
 	/*
 	 * Drop privileges for client. "proc exec" is needed for -c and for
 	 * locking (which uses system(3)).
@@ -287,6 +288,7 @@ client_main(struct event_base *base, int argc, char **argv, int flags)
 	 */
 	if (pledge("stdio unix sendfd proc exec tty", NULL) != 0)
 		fatal("pledge failed");
+#endif
 
 	/* Free stuff that is not used in the client. */
 	options_free(&global_options);
@@ -605,6 +607,7 @@ client_dispatch_wait(void)
 	struct msg_stdout_data	 stdoutdata;
 	struct msg_stderr_data	 stderrdata;
 	int			 retval;
+#ifdef __OpenBSD__
 	static int		 pledge_applied;
 
 	/*
@@ -618,6 +621,7 @@ client_dispatch_wait(void)
 			fatal("pledge failed");
 		pledge_applied = 1;
 	};
+#endif
 
 	for (;;) {
 		if ((n = imsg_get(&client_ibuf, &imsg)) == -1)