-# define BLOCK_CHILD(nvar, ovar) \
- BLOCK_SIGNAL (SIGCHLD, nvar, ovar)
-# define UNBLOCK_CHILD(ovar) \
- sigprocmask (SIG_SETMASK, &ovar, (sigset_t *) NULL)
+# define BLOCK_CHILD(nvar, ovar) BLOCK_SIGNAL (SIGCHLD, nvar, ovar)
+# define UNBLOCK_CHILD(ovar) UNBLOCK_SIGNAL(ovar)