#! /bin/sh

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

scriptversion=2012-01-06.18; # UTC

# Copyright (C) 1996-2012 Free Software Foundation, Inc.

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

if test $# -eq 0; then

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

  exit 1

fi

run=:

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

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

# 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'

  autom4te     touch the output file, or create a stub one

  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

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

Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and

'g' are ignored when checking the name.

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

    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

# normalize program name to check for.

program=`echo "$1" | sed '

  s/^gnu-//; t

  s/^gnu//; t

  s/^g//; t'`

# 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).  This is about non-GNU programs, so use $1 not

# $program.

case $1 in

  lex*|yacc*)

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

    ;;

  *)

    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 $program 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 "$*" | sed -n "$sed_output"`

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

    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 test $# -ne 1; then

        eval LASTARG=\${$#}

	case $LASTARG in

	*.y)

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

	    if test -f "$SRCFILE"; then

	         cp "$SRCFILE" y.tab.c

	    fi

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

	    if test -f "$SRCFILE"; then

	         cp "$SRCFILE" y.tab.h

	    fi

	  ;;

	esac

    fi

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

	echo >y.tab.h

    fi

    if test ! -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 test $# -ne 1; then

        eval LASTARG=\${$#}

	case $LASTARG in

	*.l)

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

	    if test -f "$SRCFILE"; then

	         cp "$SRCFILE" lex.yy.c

	    fi

	  ;;

	esac

    fi

    if test ! -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 "$*" | sed -n "$sed_output"`

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

    if test -f "$file"; then

	touch $file

    else

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

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

	exit $?

    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 "$*" | sed -n "$sed_output"`

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

    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

    ;;

  *)

    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-time-zone: "UTC"

# time-stamp-end: "; # UTC"

# End: