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317
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1 #!/usr/bin/sh
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2 # Configuration validation subroutine script.
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3 # Copyright 1992-2022 Free Software Foundation, Inc.
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4
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5 # shellcheck disable=SC2006,SC2268 # see below for rationale
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6
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7 timestamp='2022-01-03'
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8
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9 # This file is free software; you can redistribute it and/or modify it
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10 # under the terms of the GNU General Public License as published by
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11 # the Free Software Foundation, either version 3 of the License, or
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12 # (at your option) any later version.
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13 #
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14 # This program is distributed in the hope that it will be useful, but
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15 # WITHOUT ANY WARRANTY; without even the implied warranty of
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16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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17 # General Public License for more details.
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18 #
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19 # You should have received a copy of the GNU General Public License
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20 # along with this program; if not, see <https://www.gnu.org/licenses/>.
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21 #
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22 # As a special exception to the GNU General Public License, if you
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23 # distribute this file as part of a program that contains a
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24 # configuration script generated by Autoconf, you may include it under
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25 # the same distribution terms that you use for the rest of that
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26 # program. This Exception is an additional permission under section 7
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27 # of the GNU General Public License, version 3 ("GPLv3").
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28
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29
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30 # Please send patches to <config-patches@gnu.org>.
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31 #
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32 # Configuration subroutine to validate and canonicalize a configuration type.
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33 # Supply the specified configuration type as an argument.
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34 # If it is invalid, we print an error message on stderr and exit with code 1.
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35 # Otherwise, we print the canonical config type on stdout and succeed.
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36
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37 # You can get the latest version of this script from:
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38 # https://git.savannah.gnu.org/cgit/config.git/plain/config.sub
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39
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40 # This file is supposed to be the same for all GNU packages
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41 # and recognize all the CPU types, system types and aliases
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42 # that are meaningful with *any* GNU software.
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43 # Each package is responsible for reporting which valid configurations
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44 # it does not support. The user should be able to distinguish
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45 # a failure to support a valid configuration from a meaningless
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46 # configuration.
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47
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48 # The goal of this file is to map all the various variations of a given
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49 # machine specification into a single specification in the form:
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50 # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
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51 # or in some cases, the newer four-part form:
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52 # CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
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53 # It is wrong to echo any other type of specification.
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54
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55 # The "shellcheck disable" line above the timestamp inhibits complaints
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56 # about features and limitations of the classic Bourne shell that were
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57 # superseded or lifted in POSIX. However, this script identifies a wide
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58 # variety of pre-POSIX systems that do not have POSIX shells at all, and
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59 # even some reasonably current systems (Solaris 10 as case-in-point) still
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60 # have a pre-POSIX /bin/sh.
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61
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62 me=`echo "$0" | sed -e 's,.*/,,'`
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63
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64 usage="\
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65 Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS
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66
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67 Canonicalize a configuration name.
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68
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69 Options:
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70 -h, --help print this help, then exit
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71 -t, --time-stamp print date of last modification, then exit
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72 -v, --version print version number, then exit
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73
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74 Report bugs and patches to <config-patches@gnu.org>."
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75
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76 version="\
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77 GNU config.sub ($timestamp)
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78
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79 Copyright 1992-2022 Free Software Foundation, Inc.
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80
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81 This is free software; see the source for copying conditions. There is NO
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82 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
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83
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84 help="
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85 Try \`$me --help' for more information."
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86
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87 # Parse command line
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88 while test $# -gt 0 ; do
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89 case $1 in
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90 --time-stamp | --time* | -t )
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91 echo "$timestamp" ; exit ;;
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92 --version | -v )
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John "Elwin" Edwards
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