#! /bin/sh
# Common stub for a few missing GNU programs while installing.

scriptversion=2009-04-28.21;
# UTC

# Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006,
# 2008, 2009 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
                                             tar          try tar, gnutar, gtar, then tar without non-portable flags
                                             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.
                                                             ;;

                                                             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 $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
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     ;;

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