buildroot

#! /bin/sh

# Configuration validation subroutine script.

#   Copyright 1992-2013 Free Software Foundation, Inc.

​

timestamp='2013-10-01'

​

# This file is free software; you can redistribute it and/or modify it

# under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful, but

# WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

# General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, see <http://www.gnu.org/licenses/>.

#

# As a special exception to the GNU General Public License, if you

# distribute this file as part of a program that contains a

# configuration script generated by Autoconf, you may include it under

# the same distribution terms that you use for the rest of that

# program.  This Exception is an additional permission under section 7

# of the GNU General Public License, version 3 ("GPLv3").

​

​

# Please send patches with a ChangeLog entry to config-patches@gnu.org.

#

# Configuration subroutine to validate and canonicalize a configuration type.

# Supply the specified configuration type as an argument.

# If it is invalid, we print an error message on stderr and exit with code 1.

# Otherwise, we print the canonical config type on stdout and succeed.

​

# You can get the latest version of this script from:

# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD

​

# This file is supposed to be the same for all GNU packages

# and recognize all the CPU types, system types and aliases

# that are meaningful with *any* GNU software.

# Each package is responsible for reporting which valid configurations

# it does not support.  The user should be able to distinguish

# a failure to support a valid configuration from a meaningless

# configuration.

​

# The goal of this file is to map all the various variations of a given

# machine specification into a single specification in the form:

#   CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM

# or in some cases, the newer four-part form:

#   CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM

# It is wrong to echo any other type of specification.

​

me=`echo "$0" | sed -e 's,.*/,,'`

​

usage="\

Usage: $0 [OPTION] CPU-MFR-OPSYS

       $0 [OPTION] ALIAS

​

Canonicalize a configuration name.

​

Operation modes:

  -h, --help         print this help, then exit

  -t, --time-stamp   print date of last modification, then exit