#*****************************************************************************
#
# Copyright (c) 2000 - 2018, Lawrence Livermore National Security, LLC
# Produced at the Lawrence Livermore National Laboratory
# LLNL-CODE-442911
# All rights reserved.
#
# This file is  part of VisIt. For  details, see https://visit.llnl.gov/.  The
# full copyright notice is contained in the file COPYRIGHT located at the root
# of the VisIt distribution or at http://www.llnl.gov/visit/copyright.html.
#
# Redistribution  and  use  in  source  and  binary  forms,  with  or  without
# modification, are permitted provided that the following conditions are met:
#
#  - Redistributions of  source code must  retain the above  copyright notice,
#    this list of conditions and the disclaimer below.
#  - Redistributions in binary form must reproduce the above copyright notice,
#    this  list of  conditions  and  the  disclaimer (as noted below)  in  the
#    documentation and/or other materials provided with the distribution.
#  - Neither the name of  the LLNS/LLNL nor the names of  its contributors may
#    be used to endorse or promote products derived from this software without
#    specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT  HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR  IMPLIED WARRANTIES, INCLUDING,  BUT NOT  LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND  FITNESS FOR A PARTICULAR  PURPOSE
# ARE  DISCLAIMED. IN  NO EVENT  SHALL LAWRENCE  LIVERMORE NATIONAL  SECURITY,
# LLC, THE  U.S.  DEPARTMENT OF  ENERGY  OR  CONTRIBUTORS BE  LIABLE  FOR  ANY
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#
# Modifications:
#   Eric Brugger, Mon Oct 16 09:12:31 PDT 2017
#   I modified the file to no longer use BSD style pseudo terminals on
#   MacOSX, since it doesn't work on newer Mac operating sytems.
#
#****************************************************************************/

IF(NOT WIN32)
    IF(CMAKE_SYSTEM_NAME STREQUAL AIX)
        MESSAGE(STATUS "BSD style pseudo-tty")
    ELSE(CMAKE_SYSTEM_NAME STREQUAL AIX)
        TRY_COMPILE(tmpVar
                ${CMAKE_CURRENT_BINARY_DIR}
                ${VISIT_SOURCE_DIR}/CMake/TestPTY.cpp
                OUTPUT_VARIABLE outvar)
        IF(tmpVar)
            MESSAGE(STATUS "System V style pseudo-tty")
            SET(PTY_SYSV 1 CACHE BOOL "Defined if we have System V style pty functions")
        ELSE(tmpVar)
            MESSAGE(STATUS "BSD style pseudo-tty")
        ENDIF(tmpVar)
    ENDIF(CMAKE_SYSTEM_NAME STREQUAL AIX)
ENDIF(NOT WIN32)