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annotate rogue5/config.guess @ 162:600873555ec0

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Don't swap signal handlers in md_shellescape(). md_shellescape() sets SIGINT and SIGQUIT to be ignored, storing the previous handlers, and restores them after the shell exits. But it mixed up the two handlers. Since the signals were usually handled by the same function, this fix doesn't have much effect, but anything that makes signal code less confusing is a good thing.
author John "Elwin" Edwards
date Mon, 08 Jun 2015 10:01:25 -0400
parents f502bf60e6e4
children
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1 #! /bin/sh
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2 # Attempt to guess a canonical system name.
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3 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
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4 # 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation,
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5 # Inc.
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6
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7 timestamp='2006-07-02'
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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 2 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, write to the Free Software
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21 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
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22 # 02110-1301, USA.
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23 #
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24 # As a special exception to the GNU General Public License, if you
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25 # distribute this file as part of a program that contains a
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26 # configuration script generated by Autoconf, you may include it under
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27 # the same distribution terms that you use for the rest of that program.
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28
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29
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30 # Originally written by Per Bothner <per@bothner.com>.
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31 # Please send patches to <config-patches@gnu.org>. Submit a context
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32 # diff and a properly formatted ChangeLog entry.
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33 #
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34 # This script attempts to guess a canonical system name similar to
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35 # config.sub. If it succeeds, it prints the system name on stdout, and
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36 # exits with 0. Otherwise, it exits with 1.
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37 #
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38 # The plan is that this can be called by configure scripts if you
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39 # don't specify an explicit build system type.
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40
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41 me=`echo "$0" | sed -e 's,.*/,,'`
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42
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43 usage="\
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44 Usage: $0 [OPTION]
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45
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46 Output the configuration name of the system \`$me' is run on.
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47
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48 Operation modes:
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49 -h, --help print this help, then exit
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50 -t, --time-stamp print date of last modification, then exit
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51 -v, --version print version number, then exit
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52
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53 Report bugs and patches to <config-patches@gnu.org>."
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54
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55 version="\
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56 GNU config.guess ($timestamp)
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57
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58 Originally written by Per Bothner.
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59 Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
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60 Free Software Foundation, Inc.
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61
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62 This is free software; see the source for copying conditions. There is NO
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63 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
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64
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65 help="
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66 Try \`$me --help' for more information."
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67
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68 # Parse command line
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69 while test $# -gt 0 ; do
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70 case $1 in
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71 --time-stamp | --time* | -t )
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72 echo "$timestamp" ; exit ;;
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73 --version | -v )
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74 echo "$version" ; exit ;;
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75 --help | --h* | -h )
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76 echo "$usage"; exit ;;
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77 -- ) # Stop option processing
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78 shift; break ;;
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79 - ) # Use stdin as input.
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80 break ;;
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81 -* )
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82 echo "$me: invalid option $1$help" >&2
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83 exit 1 ;;
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84 * )
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85 break ;;
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86 esac
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87 done
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88
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89 if test $# != 0; then
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90 echo "$me: too many arguments$help" >&2
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91 exit 1
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92 fi
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93
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94 trap 'exit 1' 1 2 15
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95
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96 # CC_FOR_BUILD -- compiler used by this script. Note that the use of a
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97 # compiler to aid in system detection is discouraged as it requires
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98 # temporary files to be created and, as you can see below, it is a
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99 # headache to deal with in a portable fashion.
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100
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101 # Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
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102 # use `HOST_CC' if defined, but it is deprecated.
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103
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