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# Copyright (c) 2017 The NetBSD Foundation, Inc.
# All rights reserved.
#
# This code is derived from software contributed to The NetBSD Foundation
# by Johnny C. Lam.
#
# 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
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 THE FOUNDATION OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
# NAME
# platform.subr -- determine the platform (operating system.
#
# SYNOPSIS
# task_platform
#
# DESCRIPTION
# The task_platform function writes the platform to standard output.
#
# RETURN VALUES
# Returns 0 if the platform can be determined, and >0 if an error
# occurs.
#
# ENVIRONMENT
# The following variables are used if they are set:
#
# SED The name or path to the sed(1) utility.
#
# UNAME The name or path to the uname(1) utility.
#
__task_platform__="yes"
task_platform()
{
: ${SED:=sed}
: ${UNAME:=uname}
# Take uname(1) output and strip out dashes and slashes.
${UNAME} -s | ${SED} -e "s,-,,g" -e "s,/,,g" |
( read platform || return 1
case $platform in
[Cc][Yy][Gg][Ww][Ii][Nn]*)
echo "Cygwin"; return 0 ;;
*) echo "$platform"; return 0 ;;
esac
return 1 )
}
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