Move definition of nl_item type to <sys/_types.h>, so that it can be

shared.

include/nl_types.h

@@ -39,7 +39,11 @@ up-to-date.  Many thanks.
 #define	NL_SETD		0
 #define	NL_CAT_LOCALE	1
 
-typedef	int	nl_item;
+#ifndef _NL_ITEM_DECLARED
+typedef	__nl_item	nl_item;
+#define	_NL_ITEM_DECLARED
+#endif
+
 typedef	void	*nl_catd;
 
 __BEGIN_DECLS

sys/sys/_types.h

@@ -41,6 +41,7 @@ typedef	__uint64_t	__fsblkcnt_t;
 typedef	__uint64_t	__fsfilcnt_t;
 typedef	__uint32_t	__gid_t;
 typedef	__uint16_t	__mode_t;		/* permissions */
+typedef	int		__nl_item;
 typedef	__int64_t	__off_t;		/* file offset */
 typedef	__int32_t	__pid_t;		/* process [group] */
 typedef	__uint8_t	__sa_family_t;