12306 XPG4v2 slave pty behaviour should generally be disabled
Reviewed by: Robert Mustacchi <rm@fingolfin.org>
Change-ID: I7ccd399c22866f34dd20c6bb9d28e77ba4e24c67

*** 25,35 ****
  # Copyright (c) 2012 by Delphix. All rights reserved.
  # Copyright 2018 Joyent, Inc.
  # Copyright (c) 2013, OmniTI Computer Consulting, Inc. All rights reserved.
  # Copyright (c) 2013 Gary Mills
  # Copyright 2014 Garrett D'Amore <garrett@damore.org>
! # Copyright 2019 OmniOS Community Edition (OmniOSce) Association.
  #
  
  #
  # MAPFILE HEADER START
  #
--- 25,35 ----
  # Copyright (c) 2012 by Delphix. All rights reserved.
  # Copyright 2018 Joyent, Inc.
  # Copyright (c) 2013, OmniTI Computer Consulting, Inc. All rights reserved.
  # Copyright (c) 2013 Gary Mills
  # Copyright 2014 Garrett D'Amore <garrett@damore.org>
! # Copyright 2020 OmniOS Community Edition (OmniOSce) Association.
  #
  
  #
  # MAPFILE HEADER START
  #
*** 76,85 ****
--- 76,90 ----
  $endif
  $if _x86 && _ELF64
  $add amd64
  $endif
  
+ SYMBOL_VERSION ILLUMOS_0.31 {
+     protected:
+         __unlockpt_xpg4;
+ } ILLUMOS_0.30;
+ 
  SYMBOL_VERSION ILLUMOS_0.30 {
      protected:
          reallocf;
  } ILLUMOS_0.29;