unused -> __unused.

osdep-aix.c

@@ -26,7 +26,7 @@
 #include "tmux.h"
 
 char *
-osdep_get_name(unused int fd, char *tty)
+osdep_get_name(__unused int fd, char *tty)
 {
 	struct psinfo	 p;
 	char		*path;

osdep-cygwin.c

@@ -27,7 +27,7 @@
 #include "tmux.h"
 
 char *
-osdep_get_name(int fd, unused char *tty)
+osdep_get_name(int fd, __unused char *tty)
 {
 	FILE	*f;
 	char	*path, *buf;

osdep-darwin.c

@@ -28,10 +28,10 @@ char			*osdep_get_name(int, char *);
 char			*osdep_get_cwd(int);
 struct event_base	*osdep_event_init(void);
 
-#define unused __attribute__ ((unused))
+#define __unused __attribute__ ((__unused__))
 
 char *
-osdep_get_name(int fd, unused char *tty)
+osdep_get_name(int fd, __unused char *tty)
 {
 	struct proc_bsdinfo		bsdinfo;
 	pid_t				pgrp;

osdep-hpux.c

@@ -23,13 +23,13 @@
 #include "tmux.h"
 
 char *
-osdep_get_name(unused int fd, unused char *tty)
+osdep_get_name(__unused int fd, __unused char *tty)
 {
 	return (NULL);
 }
 
 char *
-osdep_get_cwd(unused int fd)
+osdep_get_cwd(__unused int fd)
 {
 	return (NULL);
 }

osdep-linux.c

@@ -28,7 +28,7 @@
 #include "tmux.h"
 
 char *
-osdep_get_name(int fd, unused char *tty)
+osdep_get_name(int fd, __unused char *tty)
 {
 	FILE	*f;
 	char	*path, *buf;

osdep-unknown.c

@@ -23,7 +23,7 @@
 #include "tmux.h"
 
 char *
-osdep_get_name(unused int fd, unused char *tty)
+osdep_get_name(__unused int fd, __unused char *tty)
 {
 	return (NULL);
 }