* libc/posix/posix_spawn.c: include _syslist.h. This allows it

newlib/libc/posix/posix_spawn.c

 /*-
  * Copyright (c) 2008 Ed Schouten <ed@FreeBSD.org>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 75 matching lines @@
 <<sched_setparam>>, <<setegid>>, <<seteuid>>, <<setpgid>>, <<vfork>>.
 */
 
 #ifndef _NO_POSIX_SPAWN
 
 #include <sys/cdefs.h>
 
 #include <sys/signal.h>
 #include <sys/queue.h>
 #include <sys/wait.h>
+#include <_syslist.h>
 
 #include <errno.h>
 #include <fcntl.h>
 #include <sched.h>
 #include <spawn.h>
 #include <signal.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 
@@ skipping 462 matching lines @@
 int
 _DEFUN(posix_spawnattr_setsigmask, (sa, sigmask),
         posix_spawnattr_t * __restrict sa _AND
         _CONST sigset_t * __restrict sigmask)
 {
         (*sa)->sa_sigmask = *sigmask;
         return (0);
 }
 
 #endif  /* !_NO_POSIX_SPAWN */