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      1 #! /bin/sh
      2 # Common stub for a few missing GNU programs while installing.
      3 
      4 scriptversion=2006-05-10.23
      5 
      6 # Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006
      7 #   Free Software Foundation, Inc.
      8 # Originally by Fran,cois Pinard <pinard (at] iro.umontreal.ca>, 1996.
      9 
     10 # This program is free software; you can redistribute it and/or modify
     11 # it under the terms of the GNU General Public License as published by
     12 # the Free Software Foundation; either version 2, or (at your option)
     13 # any later version.
     14 
     15 # This program is distributed in the hope that it will be useful,
     16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
     17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     18 # GNU General Public License for more details.
     19 
     20 # You should have received a copy of the GNU General Public License
     21 # along with this program; if not, write to the Free Software
     22 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
     23 # 02110-1301, USA.
     24 
     25 # As a special exception to the GNU General Public License, if you
     26 # distribute this file as part of a program that contains a
     27 # configuration script generated by Autoconf, you may include it under
     28 # the same distribution terms that you use for the rest of that program.
     29 
     30 if test $# -eq 0; then
     31   echo 1>&2 "Try \`$0 --help' for more information"
     32   exit 1
     33 fi
     34 
     35 run=:
     36 sed_output='s/.* --output[ =]\([^ ]*\).*/\1/p'
     37 sed_minuso='s/.* -o \([^ ]*\).*/\1/p'
     38 
     39 # In the cases where this matters, `missing' is being run in the
     40 # srcdir already.
     41 if test -f configure.ac; then
     42   configure_ac=configure.ac
     43 else
     44   configure_ac=configure.in
     45 fi
     46 
     47 msg="missing on your system"
     48 
     49 case $1 in
     50 --run)
     51   # Try to run requested program, and just exit if it succeeds.
     52   run=
     53   shift
     54   "$@" && exit 0
     55   # Exit code 63 means version mismatch.  This often happens
     56   # when the user try to use an ancient version of a tool on
     57   # a file that requires a minimum version.  In this case we
     58   # we should proceed has if the program had been absent, or
     59   # if --run hadn't been passed.
     60   if test $? = 63; then
     61     run=:
     62     msg="probably too old"
     63   fi
     64   ;;
     65 
     66   -h|--h|--he|--hel|--help)
     67     echo "\
     68 $0 [OPTION]... PROGRAM [ARGUMENT]...
     69 
     70 Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
     71 error status if there is no known handling for PROGRAM.
     72 
     73 Options:
     74   -h, --help      display this help and exit
     75   -v, --version   output version information and exit
     76   --run           try to run the given command, and emulate it if it fails
     77 
     78 Supported PROGRAM values:
     79   aclocal      touch file \`aclocal.m4'
     80   autoconf     touch file \`configure'
     81   autoheader   touch file \`config.h.in'
     82   autom4te     touch the output file, or create a stub one
     83   automake     touch all \`Makefile.in' files
     84   bison        create \`y.tab.[ch]', if possible, from existing .[ch]
     85   flex         create \`lex.yy.c', if possible, from existing .c
     86   help2man     touch the output file
     87   lex          create \`lex.yy.c', if possible, from existing .c
     88   makeinfo     touch the output file
     89   tar          try tar, gnutar, gtar, then tar without non-portable flags
     90   yacc         create \`y.tab.[ch]', if possible, from existing .[ch]
     91 
     92 Send bug reports to <bug-automake (at] gnu.org>."
     93     exit $?
     94     ;;
     95 
     96   -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
     97     echo "missing $scriptversion (GNU Automake)"
     98     exit $?
     99     ;;
    100 
    101   -*)
    102     echo 1>&2 "$0: Unknown \`$1' option"
    103     echo 1>&2 "Try \`$0 --help' for more information"
    104     exit 1
    105     ;;
    106 
    107 esac
    108 
    109 # Now exit if we have it, but it failed.  Also exit now if we
    110 # don't have it and --version was passed (most likely to detect
    111 # the program).
    112 case $1 in
    113   lex|yacc)
    114     # Not GNU programs, they don't have --version.
    115     ;;
    116 
    117   tar)
    118     if test -n "$run"; then
    119        echo 1>&2 "ERROR: \`tar' requires --run"
    120        exit 1
    121     elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
    122        exit 1
    123     fi
    124     ;;
    125 
    126   *)
    127     if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
    128        # We have it, but it failed.
    129        exit 1
    130     elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
    131        # Could not run --version or --help.  This is probably someone
    132        # running `$TOOL --version' or `$TOOL --help' to check whether
    133        # $TOOL exists and not knowing $TOOL uses missing.
    134        exit 1
    135     fi
    136     ;;
    137 esac
    138 
    139 # If it does not exist, or fails to run (possibly an outdated version),
    140 # try to emulate it.
    141 case $1 in
    142   aclocal*)
    143     echo 1>&2 "\
    144 WARNING: \`$1' is $msg.  You should only need it if
    145          you modified \`acinclude.m4' or \`${configure_ac}'.  You might want
    146          to install the \`Automake' and \`Perl' packages.  Grab them from
    147          any GNU archive site."
    148     touch aclocal.m4
    149     ;;
    150 
    151   autoconf)
    152     echo 1>&2 "\
    153 WARNING: \`$1' is $msg.  You should only need it if
    154          you modified \`${configure_ac}'.  You might want to install the
    155          \`Autoconf' and \`GNU m4' packages.  Grab them from any GNU
    156          archive site."
    157     touch configure
    158     ;;
    159 
    160   autoheader)
    161     echo 1>&2 "\
    162 WARNING: \`$1' is $msg.  You should only need it if
    163          you modified \`acconfig.h' or \`${configure_ac}'.  You might want
    164          to install the \`Autoconf' and \`GNU m4' packages.  Grab them
    165          from any GNU archive site."
    166     files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
    167     test -z "$files" && files="config.h"
    168     touch_files=
    169     for f in $files; do
    170       case $f in
    171       *:*) touch_files="$touch_files "`echo "$f" |
    172 				       sed -e 's/^[^:]*://' -e 's/:.*//'`;;
    173       *) touch_files="$touch_files $f.in";;
    174       esac
    175     done
    176     touch $touch_files
    177     ;;
    178 
    179   automake*)
    180     echo 1>&2 "\
    181 WARNING: \`$1' is $msg.  You should only need it if
    182          you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
    183          You might want to install the \`Automake' and \`Perl' packages.
    184          Grab them from any GNU archive site."
    185     find . -type f -name Makefile.am -print |
    186 	   sed 's/\.am$/.in/' |
    187 	   while read f; do touch "$f"; done
    188     ;;
    189 
    190   autom4te)
    191     echo 1>&2 "\
    192 WARNING: \`$1' is needed, but is $msg.
    193          You might have modified some files without having the
    194          proper tools for further handling them.
    195          You can get \`$1' as part of \`Autoconf' from any GNU
    196          archive site."
    197 
    198     file=`echo "$*" | sed -n "$sed_output"`
    199     test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
    200     if test -f "$file"; then
    201 	touch $file
    202     else
    203 	test -z "$file" || exec >$file
    204 	echo "#! /bin/sh"
    205 	echo "# Created by GNU Automake missing as a replacement of"
    206 	echo "#  $ $@"
    207 	echo "exit 0"
    208 	chmod +x $file
    209 	exit 1
    210     fi
    211     ;;
    212 
    213   bison|yacc)
    214     echo 1>&2 "\
    215 WARNING: \`$1' $msg.  You should only need it if
    216          you modified a \`.y' file.  You may need the \`Bison' package
    217          in order for those modifications to take effect.  You can get
    218          \`Bison' from any GNU archive site."
    219     rm -f y.tab.c y.tab.h
    220     if test $# -ne 1; then
    221         eval LASTARG="\${$#}"
    222 	case $LASTARG in
    223 	*.y)
    224 	    SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
    225 	    if test -f "$SRCFILE"; then
    226 	         cp "$SRCFILE" y.tab.c
    227 	    fi
    228 	    SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
    229 	    if test -f "$SRCFILE"; then
    230 	         cp "$SRCFILE" y.tab.h
    231 	    fi
    232 	  ;;
    233 	esac
    234     fi
    235     if test ! -f y.tab.h; then
    236 	echo >y.tab.h
    237     fi
    238     if test ! -f y.tab.c; then
    239 	echo 'main() { return 0; }' >y.tab.c
    240     fi
    241     ;;
    242 
    243   lex|flex)
    244     echo 1>&2 "\
    245 WARNING: \`$1' is $msg.  You should only need it if
    246          you modified a \`.l' file.  You may need the \`Flex' package
    247          in order for those modifications to take effect.  You can get
    248          \`Flex' from any GNU archive site."
    249     rm -f lex.yy.c
    250     if test $# -ne 1; then
    251         eval LASTARG="\${$#}"
    252 	case $LASTARG in
    253 	*.l)
    254 	    SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
    255 	    if test -f "$SRCFILE"; then
    256 	         cp "$SRCFILE" lex.yy.c
    257 	    fi
    258 	  ;;
    259 	esac
    260     fi
    261     if test ! -f lex.yy.c; then
    262 	echo 'main() { return 0; }' >lex.yy.c
    263     fi
    264     ;;
    265 
    266   help2man)
    267     echo 1>&2 "\
    268 WARNING: \`$1' is $msg.  You should only need it if
    269 	 you modified a dependency of a manual page.  You may need the
    270 	 \`Help2man' package in order for those modifications to take
    271 	 effect.  You can get \`Help2man' from any GNU archive site."
    272 
    273     file=`echo "$*" | sed -n "$sed_output"`
    274     test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
    275     if test -f "$file"; then
    276 	touch $file
    277     else
    278 	test -z "$file" || exec >$file
    279 	echo ".ab help2man is required to generate this page"
    280 	exit 1
    281     fi
    282     ;;
    283 
    284   makeinfo)
    285     echo 1>&2 "\
    286 WARNING: \`$1' is $msg.  You should only need it if
    287          you modified a \`.texi' or \`.texinfo' file, or any other file
    288          indirectly affecting the aspect of the manual.  The spurious
    289          call might also be the consequence of using a buggy \`make' (AIX,
    290          DU, IRIX).  You might want to install the \`Texinfo' package or
    291          the \`GNU make' package.  Grab either from any GNU archive site."
    292     # The file to touch is that specified with -o ...
    293     file=`echo "$*" | sed -n "$sed_output"`
    294     test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
    295     if test -z "$file"; then
    296       # ... or it is the one specified with @setfilename ...
    297       infile=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
    298       file=`sed -n '
    299 	/^@setfilename/{
    300 	  s/.* \([^ ]*\) *$/\1/
    301 	  p
    302 	  q
    303 	}' $infile`
    304       # ... or it is derived from the source name (dir/f.texi becomes f.info)
    305       test -z "$file" && file=`echo "$infile" | sed 's,.*/,,;s,.[^.]*$,,'`.info
    306     fi
    307     # If the file does not exist, the user really needs makeinfo;
    308     # let's fail without touching anything.
    309     test -f $file || exit 1
    310     touch $file
    311     ;;
    312 
    313   tar)
    314     shift
    315 
    316     # We have already tried tar in the generic part.
    317     # Look for gnutar/gtar before invocation to avoid ugly error
    318     # messages.
    319     if (gnutar --version > /dev/null 2>&1); then
    320        gnutar "$@" && exit 0
    321     fi
    322     if (gtar --version > /dev/null 2>&1); then
    323        gtar "$@" && exit 0
    324     fi
    325     firstarg="$1"
    326     if shift; then
    327 	case $firstarg in
    328 	*o*)
    329 	    firstarg=`echo "$firstarg" | sed s/o//`
    330 	    tar "$firstarg" "$@" && exit 0
    331 	    ;;
    332 	esac
    333 	case $firstarg in
    334 	*h*)
    335 	    firstarg=`echo "$firstarg" | sed s/h//`
    336 	    tar "$firstarg" "$@" && exit 0
    337 	    ;;
    338 	esac
    339     fi
    340 
    341     echo 1>&2 "\
    342 WARNING: I can't seem to be able to run \`tar' with the given arguments.
    343          You may want to install GNU tar or Free paxutils, or check the
    344          command line arguments."
    345     exit 1
    346     ;;
    347 
    348   *)
    349     echo 1>&2 "\
    350 WARNING: \`$1' is needed, and is $msg.
    351          You might have modified some files without having the
    352          proper tools for further handling them.  Check the \`README' file,
    353          it often tells you about the needed prerequisites for installing
    354          this package.  You may also peek at any GNU archive site, in case
    355          some other package would contain this missing \`$1' program."
    356     exit 1
    357     ;;
    358 esac
    359 
    360 exit 0
    361 
    362 # Local variables:
    363 # eval: (add-hook 'write-file-hooks 'time-stamp)
    364 # time-stamp-start: "scriptversion="
    365 # time-stamp-format: "%:y-%02m-%02d.%02H"
    366 # time-stamp-end: "$"
    367 # End:
    368