6556 64-bit SPARC libc needs signalfd.o too

*** 17,26 ****
--- 17,27 ----
  # information: Portions Copyright [yyyy] [name of copyright owner]
  #
  # CDDL HEADER END
  #
  #
+ # Copyright 2016 Gary Mills
  # Copyright (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved.
  # Copyright (c) 2015, Joyent, Inc.  All rights reserved.
  # Copyright (c) 2013, OmniTI Computer Consulting, Inc. All rights reserved.
  # Copyright 2013 Garrett D'Amore <garrett@damore.org>
  #
*** 919,928 ****
--- 920,930 ----
          sharefs.o               \
          shmsys.o                \
          sidsys.o                \
          siginterrupt.o          \
          signal.o                \
+         signalfd.o              \
          sigpending.o            \
          sigstack.o              \
          stat.o                  \
          symlink.o               \
          tasksys.o               \