if last == nil || !outputPrefix.MatchString(last.Text()) {
		return body, comments
	}

	// Copy body and comments, as the originals may be used elsewhere.
	newBody := &ast.BlockStmt{
		Lbrace: body.Lbrace,
		List:   body.List,
		Rbrace: last.Pos(),
	}
	newComments := make([]*ast.CommentGroup, len(comments)-1)
	copy(newComments, comments[:i])
	copy(newComments[i:], comments[i+1:])
	return newBody, newComments
}

	SYS_GETUID                   = 24  // { uid_t getuid(void); }
	SYS_GETEUID                  = 25  // { uid_t geteuid(void); }
	SYS_PTRACE                   = 26  // { int ptrace(int req, pid_t pid, caddr_t addr, int data); }
	SYS_RECVMSG                  = 27  // { int recvmsg(int s, struct msghdr *msg, int flags); }
	SYS_SENDMSG                  = 28  // { int sendmsg(int s, struct msghdr *msg, int flags); }

	SYS_GETUID                   = 24  // { uid_t getuid(void); }
	SYS_GETEUID                  = 25  // { uid_t geteuid(void); }
	SYS_PTRACE                   = 26  // { int ptrace(int req, pid_t pid, caddr_t addr, int data); }
	SYS_RECVMSG                  = 27  // { int recvmsg(int s, struct msghdr *msg, int flags); }
	SYS_SENDMSG                  = 28  // { int sendmsg(int s, struct msghdr *msg, int flags); }

	SYS_GETUID                   = 24  // { uid_t getuid(void); }
	SYS_GETEUID                  = 25  // { uid_t geteuid(void); }
	SYS_PTRACE                   = 26  // { int ptrace(int req, pid_t pid, caddr_t addr, int data); }
	SYS_RECVMSG                  = 27  // { int recvmsg(int s, struct msghdr *msg, int flags); }
	SYS_SENDMSG                  = 28  // { int sendmsg(int s, struct msghdr *msg, int flags); }

	SYS_GETUID                   = 24  // { uid_t getuid(void); }
	SYS_GETEUID                  = 25  // { uid_t geteuid(void); }
	SYS_PTRACE                   = 26  // { int ptrace(int req, pid_t pid, \
	SYS_RECVMSG                  = 27  // { int recvmsg(int s, struct msghdr *msg, \
	SYS_SENDMSG                  = 28  // { int sendmsg(int s, struct msghdr *msg, \

	// When dynamically linking, we create Symbols by reading the names from
	// the symbol tables of the shared libraries and so the names need to
	// match exactly. Tools like DTrace will have to wait for now.
	if !ctxt.DynlinkingGo() {
		// Rewrite · to . for ASCII-only tools like DTrace (sigh)
		sname = strings.Replace(sname, "·", ".", -1)
	}

	BPX4CHR = 500  // chattr
	BPX4FCR = 504  // fchattr
	BPX4LCR = 1180 // lchattr
	BPX4CTW = 492  // cond_timed_wait
	BPX4GTH = 1056 // __getthent
	BPX4PTQ = 412  // pthread_quiesc
	BPX4PTR = 320  // ptrace
)

const (
	//options
	//byte1
	BPX_OPNFHIGH = 0x80
	//byte2
	BPX_OPNFEXEC = 0x80
	//byte3
	BPX_O_NOLARGEFILE = 0x08
	BPX_O_LARGEFILE   = 0x04
	BPX_O_ASYNCSIG    = 0x02

		return poll(nil, 0, timeout)
	}
	return poll(&fds[0], len(fds), timeout)
}

// TODO: wrap
//	Acct(name nil-string) (err error)
//	Gethostuuid(uuid *byte, timeout *Timespec) (err error)
//	Ptrace(req int, pid int, addr uintptr, data int) (ret uintptr, err error)

//sys	Madvise(b []byte, behav int) (err error)
//sys	Mlock(b []byte) (err error)
//sys	Mlockall(flags int) (err error)

	SYS_GETUID                   = 24  // { uid_t getuid(void); }
	SYS_GETEUID                  = 25  // { uid_t geteuid(void); }
	SYS_PTRACE                   = 26  // { int ptrace(int req, pid_t pid, caddr_t addr, int data); }
	SYS_RECVMSG                  = 27  // { int recvmsg(int s, struct msghdr *msg, int flags); }
	SYS_SENDMSG                  = 28  // { int sendmsg(int s, struct msghdr *msg, int flags); }

	SYS_GETUID                   = 24  // { uid_t getuid(void); }
	SYS_GETEUID                  = 25  // { uid_t geteuid(void); }
	SYS_PTRACE                   = 26  // { int ptrace(int req, pid_t pid, caddr_t addr, int data); }
	SYS_RECVMSG                  = 27  // { int recvmsg(int s, struct msghdr *msg, int flags); }
	SYS_SENDMSG                  = 28  // { int sendmsg(int s, struct msghdr *msg, int flags); }