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#! /bin/sh

# Common stub for a few missing GNU programs while installing.

scriptversion=2005-06-08.21

# Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005

#   Free Software Foundation, Inc.

# Originally by Fran,cois Pinard , 1996.

# This program 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 2, 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, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

# 02110-1301, USA.

# 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.

if test $# -eq 0; then

  echo 1>&2 "Try \`$0 --help' for more information"

  exit 1

fi

run=:

# In the cases where this matters, `missing' is being run in the

# srcdir already.

if test -f configure.ac; then

  configure_ac=configure.ac

else

  configure_ac=configure.in

fi

msg="missing on your system"

case "$1" in

--run)

  # Try to run requested program, and just exit if it succeeds.

  run=

  shift

  "$@" && exit 0

  # Exit code 63 means version mismatch.  This often happens

  # when the user try to use an ancient version of a tool on

  # a file that requires a minimum version.  In this case we

  # we should proceed has if the program had been absent, or

  # if --run hadn't been passed.

  if test $? = 63; then

    run=:

    msg="probably too old"

  fi

  ;;

  -h|--h|--he|--hel|--help)

    echo "\

$0 [OPTION]... PROGRAM [ARGUMENT]...

Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an

error status if there is no known handling for PROGRAM.

Options:

  -h, --help      display this help and exit

  -v, --version   output version information and exit

  --run           try to run the given command, and emulate it if it fails

Supported PROGRAM values:

  aclocal      touch file \`aclocal.m4'

  autoconf     touch file \`configure'

  autoheader   touch file \`config.h.in'

  automake     touch all \`Makefile.in' files

  bison        create \`y.tab.[ch]', if possible, from existing .[ch]

  flex         create \`lex.yy.c', if possible, from existing .c

  help2man     touch the output file

  lex          create \`lex.yy.c', if possible, from existing .c

  makeinfo     touch the output file

  tar          try tar, gnutar, gtar, then tar without non-portable flags

  yacc         create \`y.tab.[ch]', if possible, from existing .[ch]

Send bug reports to ."

    exit $?

    ;;

  -v|--v|--ve|--ver|--vers|--versi|--versio|--version)

    echo "missing $scriptversion (GNU Automake)"

    exit $?

    ;;

  -*)

    echo 1>&2 "$0: Unknown \`$1' option"

    echo 1>&2 "Try \`$0 --help' for more information"

    exit 1

    ;;

esac

# Now exit if we have it, but it failed.  Also exit now if we

# don't have it and --version was passed (most likely to detect

# the program).

case "$1" in

  lex|yacc)

    # Not GNU programs, they don't have --version.

    ;;

  tar)

    if test -n "$run"; then

       echo 1>&2 "ERROR: \`tar' requires --run"

       exit 1

    elif test "x$2" = "x--version" || test "x$2" = "x--help"; then

       exit 1

    fi

    ;;

  *)

    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then

       # We have it, but it failed.

       exit 1

    elif test "x$2" = "x--version" || test "x$2" = "x--help"; then

       # Could not run --version or --help.  This is probably someone

       # running `$TOOL --version' or `$TOOL --help' to check whether

       # $TOOL exists and not knowing $TOOL uses missing.

       exit 1

    fi

    ;;

esac

# If it does not exist, or fails to run (possibly an outdated version),

# try to emulate it.

case "$1" in

  aclocal*)

    echo 1>&2 "\

WARNING: \`$1' is $msg.  You should only need it if

         you modified \`acinclude.m4' or \`${configure_ac}'.  You might want

         to install the \`Automake' and \`Perl' packages.  Grab them from

         any GNU archive site."

    touch aclocal.m4

    ;;

  autoconf)

    echo 1>&2 "\

WARNING: \`$1' is $msg.  You should only need it if

         you modified \`${configure_ac}'.  You might want to install the

         \`Autoconf' and \`GNU m4' packages.  Grab them from any GNU

         archive site."

    touch configure

    ;;

  autoheader)

    echo 1>&2 "\

WARNING: \`$1' is $msg.  You should only need it if

         you modified \`acconfig.h' or \`${configure_ac}'.  You might want

         to install the \`Autoconf' and \`GNU m4' packages.  Grab them

         from any GNU archive site."

    files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`

    test -z "$files" && files="config.h"

    touch_files=

    for f in $files; do

      case "$f" in

      *:*) touch_files="$touch_files "`echo "$f" |

                                       sed -e 's/^[^:]*://' -e 's/:.*//'`;;

      *) touch_files="$touch_files $f.in";;

      esac

    done

    touch $touch_files

    ;;

  automake*)

    echo 1>&2 "\

WARNING: \`$1' is $msg.  You should only need it if

         you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.

         You might want to install the \`Automake' and \`Perl' packages.

         Grab them from any GNU archive site."

    find . -type f -name Makefile.am -print |

           sed 's/\.am$/.in/' |

           while read f; do touch "$f"; done

    ;;

  autom4te)

    echo 1>&2 "\

WARNING: \`$1' is needed, but is $msg.

         You might have modified some files without having the

         proper tools for further handling them.

         You can get \`$1' as part of \`Autoconf' from any GNU

         archive site."

    file=`echo "$*" | sed -n 's/.*--output[ =]*\([^ ]*\).*/\1/p'`

    test -z "$file" && file=`echo "$*" | sed -n 's/.*-o[ ]*\([^ ]*\).*/\1/p'`

    if test -f "$file"; then

        touch $file

    else

        test -z "$file" || exec >$file

        echo "#! /bin/sh"

        echo "# Created by GNU Automake missing as a replacement of"

        echo "#  $ $@"

        echo "exit 0"

        chmod +x $file

        exit 1

    fi

    ;;

  bison|yacc)

    echo 1>&2 "\

WARNING: \`$1' $msg.  You should only need it if

         you modified a \`.y' file.  You may need the \`Bison' package

         in order for those modifications to take effect.  You can get

         \`Bison' from any GNU archive site."

    rm -f y.tab.c y.tab.h

    if [ $# -ne 1 ]; then

        eval LASTARG="\${$#}"

        case "$LASTARG" in

        *.y)

            SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`

            if [ -f "$SRCFILE" ]; then

                 cp "$SRCFILE" y.tab.c

            fi

            SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`

            if [ -f "$SRCFILE" ]; then

                 cp "$SRCFILE" y.tab.h

            fi

          ;;

        esac

    fi

    if [ ! -f y.tab.h ]; then

        echo >y.tab.h

    fi

    if [ ! -f y.tab.c ]; then

        echo 'main() { return 0; }' >y.tab.c

    fi

    ;;

  lex|flex)

    echo 1>&2 "\

WARNING: \`$1' is $msg.  You should only need it if

         you modified a \`.l' file.  You may need the \`Flex' package

         in order for those modifications to take effect.  You can get

         \`Flex' from any GNU archive site."

    rm -f lex.yy.c

    if [ $# -ne 1 ]; then

        eval LASTARG="\${$#}"

        case "$LASTARG" in

        *.l)

            SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`

            if [ -f "$SRCFILE" ]; then

                 cp "$SRCFILE" lex.yy.c

            fi

          ;;

        esac

    fi

    if [ ! -f lex.yy.c ]; then

        echo 'main() { return 0; }' >lex.yy.c

    fi

    ;;

  help2man)

    echo 1>&2 "\

WARNING: \`$1' is $msg.  You should only need it if

         you modified a dependency of a manual page.  You may need the

         \`Help2man' package in order for those modifications to take

         effect.  You can get \`Help2man' from any GNU archive site."

    file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'`

    if test -z "$file"; then

        file=`echo "$*" | sed -n 's/.*--output=\([^ ]*\).*/\1/p'`

    fi

    if [ -f "$file" ]; then

        touch $file

    else

        test -z "$file" || exec >$file

        echo ".ab help2man is required to generate this page"

        exit 1

    fi

    ;;

  makeinfo)

    echo 1>&2 "\

WARNING: \`$1' is $msg.  You should only need it if

         you modified a \`.texi' or \`.texinfo' file, or any other file

         indirectly affecting the aspect of the manual.  The spurious

         call might also be the consequence of using a buggy \`make' (AIX,

         DU, IRIX).  You might want to install the \`Texinfo' package or

         the \`GNU make' package.  Grab either from any GNU archive site."

    # The file to touch is that specified with -o ...

    file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'`

    if test -z "$file"; then

      # ... or it is the one specified with @setfilename ...

      infile=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`

      file=`sed -n '/^@setfilename/ { s/.* \([^ ]*\) *$/\1/; p; q; }' $infile`

      # ... or it is derived from the source name (dir/f.texi becomes f.info)

      test -z "$file" && file=`echo "$infile" | sed 's,.*/,,;s,.[^.]*$,,'`.info

    fi

    # If the file does not exist, the user really needs makeinfo;

    # let's fail without touching anything.

    test -f $file || exit 1

    touch $file

    ;;

  tar)

    shift

    # We have already tried tar in the generic part.

    # Look for gnutar/gtar before invocation to avoid ugly error

    # messages.

    if (gnutar --version > /dev/null 2>&1); then

       gnutar "$@" && exit 0

    fi

    if (gtar --version > /dev/null 2>&1); then

       gtar "$@" && exit 0

    fi

    firstarg="$1"

    if shift; then

        case "$firstarg" in

        *o*)

            firstarg=`echo "$firstarg" | sed s/o//`

            tar "$firstarg" "$@" && exit 0

            ;;

        esac

        case "$firstarg" in

        *h*)

            firstarg=`echo "$firstarg" | sed s/h//`

            tar "$firstarg" "$@" && exit 0

            ;;

        esac

    fi

    echo 1>&2 "\

WARNING: I can't seem to be able to run \`tar' with the given arguments.

         You may want to install GNU tar or Free paxutils, or check the

         command line arguments."

    exit 1

    ;;

  *)

    echo 1>&2 "\

WARNING: \`$1' is needed, and is $msg.

         You might have modified some files without having the

         proper tools for further handling them.  Check the \`README' file,

         it often tells you about the needed prerequisites for installing

         this package.  You may also peek at any GNU archive site, in case

         some other package would contain this missing \`$1' program."

    exit 1

    ;;

esac

exit 0

# Local variables:

# eval: (add-hook 'write-file-hooks 'time-stamp)

# time-stamp-start: "scriptversion="

# time-stamp-format: "%:y-%02m-%02d.%02H"

# time-stamp-end: "$"

# End: