missing

#! /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: