--- src/include/unistd.h	2007/03/12 21:06:00	1.20
+++ src/include/unistd.h	2007/03/12 21:07:41	1.21
@@ -159,6 +159,7 @@ int	 issetugid(void);
 int	 lchown(const char *, uid_t, gid_t);
 int	 lockf(int, int, off_t);
 int	 lwp_create(struct lwp_params *);
+lwpid_t	 lwp_gettid(void);
 char	*mkdtemp(char *);
 int	 mknod(const char *, mode_t, dev_t);
 int	 mkstemp(char *);