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#! /bin/sh

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

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scriptversion=2006-05-10.23

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# Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006

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#   Free Software Foundation, Inc.

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# Originally by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.

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

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

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# the Free Software Foundation; either version 2, or (at your option)

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# any later version.

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

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# but WITHOUT ANY WARRANTY; without even the implied warranty of

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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

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# GNU General Public License for more details.

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

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# along with this program; if not, write to the Free Software

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

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# 02110-1301, USA.

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

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

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

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

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if test $# -eq 0; then

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

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  exit 1

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fi

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run=:

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sed_output='s/.* --output[ =]\([^ ]*\).*/\1/p'

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sed_minuso='s/.* -o \([^ ]*\).*/\1/p'

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

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# srcdir already.

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if test -f configure.ac; then

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  configure_ac=configure.ac

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else

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  configure_ac=configure.in

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fi

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msg="missing on your system"

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case $1 in

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--run)

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

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  run=

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  shift

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  "$@" && exit 0

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  # Exit code 63 means version mismatch.  This often happens

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

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

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

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  # if --run hadn't been passed.

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  if test $? = 63; then

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    run=:

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    msg="probably too old"

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  fi

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  ;;

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

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    echo "\

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

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

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error status if there is no known handling for PROGRAM.

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Options:

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  -h, --help      display this help and exit

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  -v, --version   output version information and exit

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

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Supported PROGRAM values:

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  aclocal      touch file \`aclocal.m4'

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  autoconf     touch file \`configure'

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  autoheader   touch file \`config.h.in'

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  autom4te     touch the output file, or create a stub one

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  automake     touch all \`Makefile.in' files

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

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

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  help2man     touch the output file

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

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  makeinfo     touch the output file

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

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

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Send bug reports to <bug-automake@gnu.org>."

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    exit $?

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    ;;

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

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    echo "missing $scriptversion (GNU Automake)"

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    exit $?

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    ;;

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  -*)

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

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

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    exit 1

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    ;;

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esac

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

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

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# the program).

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case $1 in

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  lex|yacc)

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

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    ;;

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  tar)

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    if test -n "$run"; then

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

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       exit 1

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

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       exit 1

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    fi

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    ;;

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  *)

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

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       # We have it, but it failed.

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       exit 1

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

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

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

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

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       exit 1

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    fi

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    ;;

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esac

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

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# try to emulate it.

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case $1 in

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  aclocal*)

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    echo 1>&2 "\

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

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

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

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         any GNU archive site."

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    touch aclocal.m4

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    ;;

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  autoconf)

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    echo 1>&2 "\

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

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

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

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         archive site."

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    touch configure

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    ;;

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  autoheader)

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    echo 1>&2 "\

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

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

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

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         from any GNU archive site."

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

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

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    touch_files=

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    for f in $files; do

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      case $f in

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

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

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

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      esac

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    done

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    touch $touch_files

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    ;;

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  automake*)

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    echo 1>&2 "\

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

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

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

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         Grab them from any GNU archive site."

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

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

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

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    ;;

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  autom4te)

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    echo 1>&2 "\

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

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         You might have modified some files without having the

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         proper tools for further handling them.

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

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         archive site."

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    file=`echo "$*" | sed -n "$sed_output"`

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    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`

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    if test -f "$file"; then

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	touch $file

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    else

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

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	echo "#! /bin/sh"

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

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	echo "#  $ $@"

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	echo "exit 0"

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	chmod +x $file

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	exit 1

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    fi

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    ;;

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  bison|yacc)

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    echo 1>&2 "\

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

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

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

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         \`Bison' from any GNU archive site."

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

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    if test $# -ne 1; then

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        eval LASTARG="\${$#}"

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	case $LASTARG in

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	*.y)

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

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	    if test -f "$SRCFILE"; then

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	         cp "$SRCFILE" y.tab.c

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	    fi

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

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	    if test -f "$SRCFILE"; then

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	         cp "$SRCFILE" y.tab.h

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	    fi

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	  ;;

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	esac

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    fi

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    if test ! -f y.tab.h; then

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	echo >y.tab.h

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    fi

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    if test ! -f y.tab.c; then

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

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    fi

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    ;;

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  lex|flex)

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    echo 1>&2 "\

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

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

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

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         \`Flex' from any GNU archive site."

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    rm -f lex.yy.c

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    if test $# -ne 1; then

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        eval LASTARG="\${$#}"

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	case $LASTARG in

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	*.l)

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

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	    if test -f "$SRCFILE"; then

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	         cp "$SRCFILE" lex.yy.c

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	    fi

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	  ;;

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	esac

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    fi

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    if test ! -f lex.yy.c; then

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

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    fi

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    ;;

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  help2man)

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    echo 1>&2 "\

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

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

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

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

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    file=`echo "$*" | sed -n "$sed_output"`

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    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`

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    if test -f "$file"; then

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	touch $file

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    else

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

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

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	exit 1

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    fi

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    ;;

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  makeinfo)

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    echo 1>&2 "\

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

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

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         indirectly affecting the aspect of the manual.  The spurious

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

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

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

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

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    file=`echo "$*" | sed -n "$sed_output"`

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    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`

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    if test -z "$file"; then

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

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

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      file=`sed -n '

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	/^@setfilename/{

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	  s/.* \([^ ]*\) *$/\1/

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	  p

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	  q

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	}' $infile`

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

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

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    fi

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

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    # let's fail without touching anything.

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    test -f $file || exit 1

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    touch $file

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    ;;

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  tar)

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    shift

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    # We have already tried tar in the generic part.

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

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    # messages.

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

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       gnutar "$@" && exit 0

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    fi

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

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       gtar "$@" && exit 0

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    fi

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    firstarg="$1"

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    if shift; then

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	case $firstarg in

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	*o*)

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

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

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	    ;;

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	esac

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	case $firstarg in

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	*h*)

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

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

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	    ;;

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	esac

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    fi

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    echo 1>&2 "\

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

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

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         command line arguments."

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    exit 1

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    ;;

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  *)

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    echo 1>&2 "\

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

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         You might have modified some files without having the

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

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         it often tells you about the needed prerequisites for installing

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

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

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    exit 1

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    ;;

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esac

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exit 0

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# Local variables:

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

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# time-stamp-start: "scriptversion="

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

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# time-stamp-end: "$"

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# End: