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      1 #! /bin/sh
      2 # Common stub for a few missing GNU programs while installing.
      3 
      4 scriptversion=2005-06-08.21
      5 
      6 # Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005
      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 
     37 # In the cases where this matters, `missing' is being run in the
     38 # srcdir already.
     39 if test -f configure.ac; then
     40   configure_ac=configure.ac
     41 else
     42   configure_ac=configure.in
     43 fi
     44 
     45 msg="missing on your system"
     46 
     47 case "$1" in
     48 --run)
     49   # Try to run requested program, and just exit if it succeeds.
     50   run=
     51   shift
     52   "$@" && exit 0
     53   # Exit code 63 means version mismatch.  This often happens
     54   # when the user try to use an ancient version of a tool on
     55   # a file that requires a minimum version.  In this case we
     56   # we should proceed has if the program had been absent, or
     57   # if --run hadn't been passed.
     58   if test $? = 63; then
     59     run=:
     60     msg="probably too old"
     61   fi
     62   ;;
     63 
     64   -h|--h|--he|--hel|--help)
     65     echo "\
     66 $0 [OPTION]... PROGRAM [ARGUMENT]...
     67 
     68 Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
     69 error status if there is no known handling for PROGRAM.
     70 
     71 Options:
     72   -h, --help      display this help and exit
     73   -v, --version   output version information and exit
     74   --run           try to run the given command, and emulate it if it fails
     75 
     76 Supported PROGRAM values:
     77   aclocal      touch file \`aclocal.m4'
     78   autoconf     touch file \`configure'
     79   autoheader   touch file \`config.h.in'
     80   automake     touch all \`Makefile.in' files
     81   bison        create \`y.tab.[ch]', if possible, from existing .[ch]
     82   flex         create \`lex.yy.c', if possible, from existing .c
     83   help2man     touch the output file
     84   lex          create \`lex.yy.c', if possible, from existing .c
     85   makeinfo     touch the output file
     86   tar          try tar, gnutar, gtar, then tar without non-portable flags
     87   yacc         create \`y.tab.[ch]', if possible, from existing .[ch]
     88 
     89 Send bug reports to <bug-automake (at] gnu.org>."
     90     exit $?
     91     ;;
     92 
     93   -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
     94     echo "missing $scriptversion (GNU Automake)"
     95     exit $?
     96     ;;
     97 
     98   -*)
     99     echo 1>&2 "$0: Unknown \`$1' option"
    100     echo 1>&2 "Try \`$0 --help' for more information"
    101     exit 1
    102     ;;
    103 
    104 esac
    105 
    106 # Now exit if we have it, but it failed.  Also exit now if we
    107 # don't have it and --version was passed (most likely to detect
    108 # the program).
    109 case "$1" in
    110   lex|yacc)
    111     # Not GNU programs, they don't have --version.
    112     ;;
    113 
    114   tar)
    115     if test -n "$run"; then
    116        echo 1>&2 "ERROR: \`tar' requires --run"
    117        exit 1
    118     elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
    119        exit 1
    120     fi
    121     ;;
    122 
    123   *)
    124     if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
    125        # We have it, but it failed.
    126        exit 1
    127     elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
    128        # Could not run --version or --help.  This is probably someone
    129        # running `$TOOL --version' or `$TOOL --help' to check whether
    130        # $TOOL exists and not knowing $TOOL uses missing.
    131        exit 1
    132     fi
    133     ;;
    134 esac
    135 
    136 # If it does not exist, or fails to run (possibly an outdated version),
    137 # try to emulate it.
    138 case "$1" in
    139   aclocal*)
    140     echo 1>&2 "\
    141 WARNING: \`$1' is $msg.  You should only need it if
    142          you modified \`acinclude.m4' or \`${configure_ac}'.  You might want
    143          to install the \`Automake' and \`Perl' packages.  Grab them from
    144          any GNU archive site."
    145     touch aclocal.m4
    146     ;;
    147 
    148   autoconf)
    149     echo 1>&2 "\
    150 WARNING: \`$1' is $msg.  You should only need it if
    151          you modified \`${configure_ac}'.  You might want to install the
    152          \`Autoconf' and \`GNU m4' packages.  Grab them from any GNU
    153          archive site."
    154     touch configure
    155     ;;
    156 
    157   autoheader)
    158     echo 1>&2 "\
    159 WARNING: \`$1' is $msg.  You should only need it if
    160          you modified \`acconfig.h' or \`${configure_ac}'.  You might want
    161          to install the \`Autoconf' and \`GNU m4' packages.  Grab them
    162          from any GNU archive site."
    163     files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
    164     test -z "$files" && files="config.h"
    165     touch_files=
    166     for f in $files; do
    167       case "$f" in
    168       *:*) touch_files="$touch_files "`echo "$f" |
    169 				       sed -e 's/^[^:]*://' -e 's/:.*//'`;;
    170       *) touch_files="$touch_files $f.in";;
    171       esac
    172     done
    173     touch $touch_files
    174     ;;
    175 
    176   automake*)
    177     echo 1>&2 "\
    178 WARNING: \`$1' is $msg.  You should only need it if
    179          you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
    180          You might want to install the \`Automake' and \`Perl' packages.
    181          Grab them from any GNU archive site."
    182     find . -type f -name Makefile.am -print |
    183 	   sed 's/\.am$/.in/' |
    184 	   while read f; do touch "$f"; done
    185     ;;
    186 
    187   autom4te)
    188     echo 1>&2 "\
    189 WARNING: \`$1' is needed, but is $msg.
    190          You might have modified some files without having the
    191          proper tools for further handling them.
    192          You can get \`$1' as part of \`Autoconf' from any GNU
    193          archive site."
    194 
    195     file=`echo "$*" | sed -n 's/.*--output[ =]*\([^ ]*\).*/\1/p'`
    196     test -z "$file" && file=`echo "$*" | sed -n 's/.*-o[ ]*\([^ ]*\).*/\1/p'`
    197     if test -f "$file"; then
    198 	touch $file
    199     else
    200 	test -z "$file" || exec >$file
    201 	echo "#! /bin/sh"
    202 	echo "# Created by GNU Automake missing as a replacement of"
    203 	echo "#  $ $@"
    204 	echo "exit 0"
    205 	chmod +x $file
    206 	exit 1
    207     fi
    208     ;;
    209 
    210   bison|yacc)
    211     echo 1>&2 "\
    212 WARNING: \`$1' $msg.  You should only need it if
    213          you modified a \`.y' file.  You may need the \`Bison' package
    214          in order for those modifications to take effect.  You can get
    215          \`Bison' from any GNU archive site."
    216     rm -f y.tab.c y.tab.h
    217     if [ $# -ne 1 ]; then
    218         eval LASTARG="\${$#}"
    219 	case "$LASTARG" in
    220 	*.y)
    221 	    SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
    222 	    if [ -f "$SRCFILE" ]; then
    223 	         cp "$SRCFILE" y.tab.c
    224 	    fi
    225 	    SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
    226 	    if [ -f "$SRCFILE" ]; then
    227 	         cp "$SRCFILE" y.tab.h
    228 	    fi
    229 	  ;;
    230 	esac
    231     fi
    232     if [ ! -f y.tab.h ]; then
    233 	echo >y.tab.h
    234     fi
    235     if [ ! -f y.tab.c ]; then
    236 	echo 'main() { return 0; }' >y.tab.c
    237     fi
    238     ;;
    239 
    240   lex|flex)
    241     echo 1>&2 "\
    242 WARNING: \`$1' is $msg.  You should only need it if
    243          you modified a \`.l' file.  You may need the \`Flex' package
    244          in order for those modifications to take effect.  You can get
    245          \`Flex' from any GNU archive site."
    246     rm -f lex.yy.c
    247     if [ $# -ne 1 ]; then
    248         eval LASTARG="\${$#}"
    249 	case "$LASTARG" in
    250 	*.l)
    251 	    SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
    252 	    if [ -f "$SRCFILE" ]; then
    253 	         cp "$SRCFILE" lex.yy.c
    254 	    fi
    255 	  ;;
    256 	esac
    257     fi
    258     if [ ! -f lex.yy.c ]; then
    259 	echo 'main() { return 0; }' >lex.yy.c
    260     fi
    261     ;;
    262 
    263   help2man)
    264     echo 1>&2 "\
    265 WARNING: \`$1' is $msg.  You should only need it if
    266 	 you modified a dependency of a manual page.  You may need the
    267 	 \`Help2man' package in order for those modifications to take
    268 	 effect.  You can get \`Help2man' from any GNU archive site."
    269 
    270     file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'`
    271     if test -z "$file"; then
    272 	file=`echo "$*" | sed -n 's/.*--output=\([^ ]*\).*/\1/p'`
    273     fi
    274     if [ -f "$file" ]; then
    275 	touch $file
    276     else
    277 	test -z "$file" || exec >$file
    278 	echo ".ab help2man is required to generate this page"
    279 	exit 1
    280     fi
    281     ;;
    282 
    283   makeinfo)
    284     echo 1>&2 "\
    285 WARNING: \`$1' is $msg.  You should only need it if
    286          you modified a \`.texi' or \`.texinfo' file, or any other file
    287          indirectly affecting the aspect of the manual.  The spurious
    288          call might also be the consequence of using a buggy \`make' (AIX,
    289          DU, IRIX).  You might want to install the \`Texinfo' package or
    290          the \`GNU make' package.  Grab either from any GNU archive site."
    291     # The file to touch is that specified with -o ...
    292     file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'`
    293     if test -z "$file"; then
    294       # ... or it is the one specified with @setfilename ...
    295       infile=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
    296       file=`sed -n '/^@setfilename/ { s/.* \([^ ]*\) *$/\1/; p; q; }' $infile`
    297       # ... or it is derived from the source name (dir/f.texi becomes f.info)
    298       test -z "$file" && file=`echo "$infile" | sed 's,.*/,,;s,.[^.]*$,,'`.info
    299     fi
    300     # If the file does not exist, the user really needs makeinfo;
    301     # let's fail without touching anything.
    302     test -f $file || exit 1
    303     touch $file
    304     ;;
    305 
    306   tar)
    307     shift
    308 
    309     # We have already tried tar in the generic part.
    310     # Look for gnutar/gtar before invocation to avoid ugly error
    311     # messages.
    312     if (gnutar --version > /dev/null 2>&1); then
    313        gnutar "$@" && exit 0
    314     fi
    315     if (gtar --version > /dev/null 2>&1); then
    316        gtar "$@" && exit 0
    317     fi
    318     firstarg="$1"
    319     if shift; then
    320 	case "$firstarg" in
    321 	*o*)
    322 	    firstarg=`echo "$firstarg" | sed s/o//`
    323 	    tar "$firstarg" "$@" && exit 0
    324 	    ;;
    325 	esac
    326 	case "$firstarg" in
    327 	*h*)
    328 	    firstarg=`echo "$firstarg" | sed s/h//`
    329 	    tar "$firstarg" "$@" && exit 0
    330 	    ;;
    331 	esac
    332     fi
    333 
    334     echo 1>&2 "\
    335 WARNING: I can't seem to be able to run \`tar' with the given arguments.
    336          You may want to install GNU tar or Free paxutils, or check the
    337          command line arguments."
    338     exit 1
    339     ;;
    340 
    341   *)
    342     echo 1>&2 "\
    343 WARNING: \`$1' is needed, and is $msg.
    344          You might have modified some files without having the
    345          proper tools for further handling them.  Check the \`README' file,
    346          it often tells you about the needed prerequisites for installing
    347          this package.  You may also peek at any GNU archive site, in case
    348          some other package would contain this missing \`$1' program."
    349     exit 1
    350     ;;
    351 esac
    352 
    353 exit 0
    354 
    355 # Local variables:
    356 # eval: (add-hook 'write-file-hooks 'time-stamp)
    357 # time-stamp-start: "scriptversion="
    358 # time-stamp-format: "%:y-%02m-%02d.%02H"
    359 # time-stamp-end: "$"
    360 # End:
    361