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      1 #! /bin/sh
      2 # Common stub for a few missing GNU programs while installing.
      3 
      4 scriptversion=2009-04-28.21; # UTC
      5 
      6 # Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006,
      7 # 2008, 2009 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, see <http://www.gnu.org/licenses/>.
     22 
     23 # As a special exception to the GNU General Public License, if you
     24 # distribute this file as part of a program that contains a
     25 # configuration script generated by Autoconf, you may include it under
     26 # the same distribution terms that you use for the rest of that program.
     27 
     28 if test $# -eq 0; then
     29   echo 1>&2 "Try \`$0 --help' for more information"
     30   exit 1
     31 fi
     32 
     33 run=:
     34 sed_output='s/.* --output[ =]\([^ ]*\).*/\1/p'
     35 sed_minuso='s/.* -o \([^ ]*\).*/\1/p'
     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   autom4te     touch the output file, or create a stub one
     81   automake     touch all \`Makefile.in' files
     82   bison        create \`y.tab.[ch]', if possible, from existing .[ch]
     83   flex         create \`lex.yy.c', if possible, from existing .c
     84   help2man     touch the output file
     85   lex          create \`lex.yy.c', if possible, from existing .c
     86   makeinfo     touch the output file
     87   tar          try tar, gnutar, gtar, then tar without non-portable flags
     88   yacc         create \`y.tab.[ch]', if possible, from existing .[ch]
     89 
     90 Version suffixes to PROGRAM as well as the prefixes \`gnu-', \`gnu', and
     91 \`g' are ignored when checking the name.
     92 
     93 Send bug reports to <bug-automake@gnu.org>."
     94     exit $?
     95     ;;
     96 
     97   -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
     98     echo "missing $scriptversion (GNU Automake)"
     99     exit $?
    100     ;;
    101 
    102   -*)
    103     echo 1>&2 "$0: Unknown \`$1' option"
    104     echo 1>&2 "Try \`$0 --help' for more information"
    105     exit 1
    106     ;;
    107 
    108 esac
    109 
    110 # normalize program name to check for.
    111 program=`echo "$1" | sed '
    112   s/^gnu-//; t
    113   s/^gnu//; t
    114   s/^g//; t'`
    115 
    116 # Now exit if we have it, but it failed.  Also exit now if we
    117 # don't have it and --version was passed (most likely to detect
    118 # the program).  This is about non-GNU programs, so use $1 not
    119 # $program.
    120 case $1 in
    121   lex*|yacc*)
    122     # Not GNU programs, they don't have --version.
    123     ;;
    124 
    125   tar*)
    126     if test -n "$run"; then
    127        echo 1>&2 "ERROR: \`tar' requires --run"
    128        exit 1
    129     elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
    130        exit 1
    131     fi
    132     ;;
    133 
    134   *)
    135     if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
    136        # We have it, but it failed.
    137        exit 1
    138     elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
    139        # Could not run --version or --help.  This is probably someone
    140        # running `$TOOL --version' or `$TOOL --help' to check whether
    141        # $TOOL exists and not knowing $TOOL uses missing.
    142        exit 1
    143     fi
    144     ;;
    145 esac
    146 
    147 # If it does not exist, or fails to run (possibly an outdated version),
    148 # try to emulate it.
    149 case $program in
    150   aclocal*)
    151     echo 1>&2 "\
    152 WARNING: \`$1' is $msg.  You should only need it if
    153          you modified \`acinclude.m4' or \`${configure_ac}'.  You might want
    154          to install the \`Automake' and \`Perl' packages.  Grab them from
    155          any GNU archive site."
    156     touch aclocal.m4
    157     ;;
    158 
    159   autoconf*)
    160     echo 1>&2 "\
    161 WARNING: \`$1' is $msg.  You should only need it if
    162          you modified \`${configure_ac}'.  You might want to install the
    163          \`Autoconf' and \`GNU m4' packages.  Grab them from any GNU
    164          archive site."
    165     touch configure
    166     ;;
    167 
    168   autoheader*)
    169     echo 1>&2 "\
    170 WARNING: \`$1' is $msg.  You should only need it if
    171          you modified \`acconfig.h' or \`${configure_ac}'.  You might want
    172          to install the \`Autoconf' and \`GNU m4' packages.  Grab them
    173          from any GNU archive site."
    174     files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
    175     test -z "$files" && files="config.h"
    176     touch_files=
    177     for f in $files; do
    178       case $f in
    179       *:*) touch_files="$touch_files "`echo "$f" |
    180 				       sed -e 's/^[^:]*://' -e 's/:.*//'`;;
    181       *) touch_files="$touch_files $f.in";;
    182       esac
    183     done
    184     touch $touch_files
    185     ;;
    186 
    187   automake*)
    188     echo 1>&2 "\
    189 WARNING: \`$1' is $msg.  You should only need it if
    190          you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
    191          You might want to install the \`Automake' and \`Perl' packages.
    192          Grab them from any GNU archive site."
    193     find . -type f -name Makefile.am -print |
    194 	   sed 's/\.am$/.in/' |
    195 	   while read f; do touch "$f"; done
    196     ;;
    197 
    198   autom4te*)
    199     echo 1>&2 "\
    200 WARNING: \`$1' is needed, but is $msg.
    201          You might have modified some files without having the
    202          proper tools for further handling them.
    203          You can get \`$1' as part of \`Autoconf' from any GNU
    204          archive site."
    205 
    206     file=`echo "$*" | sed -n "$sed_output"`
    207     test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
    208     if test -f "$file"; then
    209 	touch $file
    210     else
    211 	test -z "$file" || exec >$file
    212 	echo "#! /bin/sh"
    213 	echo "# Created by GNU Automake missing as a replacement of"
    214 	echo "#  $ $@"
    215 	echo "exit 0"
    216 	chmod +x $file
    217 	exit 1
    218     fi
    219     ;;
    220 
    221   bison*|yacc*)
    222     echo 1>&2 "\
    223 WARNING: \`$1' $msg.  You should only need it if
    224          you modified a \`.y' file.  You may need the \`Bison' package
    225          in order for those modifications to take effect.  You can get
    226          \`Bison' from any GNU archive site."
    227     rm -f y.tab.c y.tab.h
    228     if test $# -ne 1; then
    229         eval LASTARG="\${$#}"
    230 	case $LASTARG in
    231 	*.y)
    232 	    SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
    233 	    if test -f "$SRCFILE"; then
    234 	         cp "$SRCFILE" y.tab.c
    235 	    fi
    236 	    SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
    237 	    if test -f "$SRCFILE"; then
    238 	         cp "$SRCFILE" y.tab.h
    239 	    fi
    240 	  ;;
    241 	esac
    242     fi
    243     if test ! -f y.tab.h; then
    244 	echo >y.tab.h
    245     fi
    246     if test ! -f y.tab.c; then
    247 	echo 'main() { return 0; }' >y.tab.c
    248     fi
    249     ;;
    250 
    251   lex*|flex*)
    252     echo 1>&2 "\
    253 WARNING: \`$1' is $msg.  You should only need it if
    254          you modified a \`.l' file.  You may need the \`Flex' package
    255          in order for those modifications to take effect.  You can get
    256          \`Flex' from any GNU archive site."
    257     rm -f lex.yy.c
    258     if test $# -ne 1; then
    259         eval LASTARG="\${$#}"
    260 	case $LASTARG in
    261 	*.l)
    262 	    SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
    263 	    if test -f "$SRCFILE"; then
    264 	         cp "$SRCFILE" lex.yy.c
    265 	    fi
    266 	  ;;
    267 	esac
    268     fi
    269     if test ! -f lex.yy.c; then
    270 	echo 'main() { return 0; }' >lex.yy.c
    271     fi
    272     ;;
    273 
    274   help2man*)
    275     echo 1>&2 "\
    276 WARNING: \`$1' is $msg.  You should only need it if
    277 	 you modified a dependency of a manual page.  You may need the
    278 	 \`Help2man' package in order for those modifications to take
    279 	 effect.  You can get \`Help2man' from any GNU archive site."
    280 
    281     file=`echo "$*" | sed -n "$sed_output"`
    282     test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
    283     if test -f "$file"; then
    284 	touch $file
    285     else
    286 	test -z "$file" || exec >$file
    287 	echo ".ab help2man is required to generate this page"
    288 	exit $?
    289     fi
    290     ;;
    291 
    292   makeinfo*)
    293     echo 1>&2 "\
    294 WARNING: \`$1' is $msg.  You should only need it if
    295          you modified a \`.texi' or \`.texinfo' file, or any other file
    296          indirectly affecting the aspect of the manual.  The spurious
    297          call might also be the consequence of using a buggy \`make' (AIX,
    298          DU, IRIX).  You might want to install the \`Texinfo' package or
    299          the \`GNU make' package.  Grab either from any GNU archive site."
    300     # The file to touch is that specified with -o ...
    301     file=`echo "$*" | sed -n "$sed_output"`
    302     test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
    303     if test -z "$file"; then
    304       # ... or it is the one specified with @setfilename ...
    305       infile=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
    306       file=`sed -n '
    307 	/^@setfilename/{
    308 	  s/.* \([^ ]*\) *$/\1/
    309 	  p
    310 	  q
    311 	}' $infile`
    312       # ... or it is derived from the source name (dir/f.texi becomes f.info)
    313       test -z "$file" && file=`echo "$infile" | sed 's,.*/,,;s,.[^.]*$,,'`.info
    314     fi
    315     # If the file does not exist, the user really needs makeinfo;
    316     # let's fail without touching anything.
    317     test -f $file || exit 1
    318     touch $file
    319     ;;
    320 
    321   tar*)
    322     shift
    323 
    324     # We have already tried tar in the generic part.
    325     # Look for gnutar/gtar before invocation to avoid ugly error
    326     # messages.
    327     if (gnutar --version > /dev/null 2>&1); then
    328        gnutar "$@" && exit 0
    329     fi
    330     if (gtar --version > /dev/null 2>&1); then
    331        gtar "$@" && exit 0
    332     fi
    333     firstarg="$1"
    334     if shift; then
    335 	case $firstarg in
    336 	*o*)
    337 	    firstarg=`echo "$firstarg" | sed s/o//`
    338 	    tar "$firstarg" "$@" && exit 0
    339 	    ;;
    340 	esac
    341 	case $firstarg in
    342 	*h*)
    343 	    firstarg=`echo "$firstarg" | sed s/h//`
    344 	    tar "$firstarg" "$@" && exit 0
    345 	    ;;
    346 	esac
    347     fi
    348 
    349     echo 1>&2 "\
    350 WARNING: I can't seem to be able to run \`tar' with the given arguments.
    351          You may want to install GNU tar or Free paxutils, or check the
    352          command line arguments."
    353     exit 1
    354     ;;
    355 
    356   *)
    357     echo 1>&2 "\
    358 WARNING: \`$1' is needed, and is $msg.
    359          You might have modified some files without having the
    360          proper tools for further handling them.  Check the \`README' file,
    361          it often tells you about the needed prerequisites for installing
    362          this package.  You may also peek at any GNU archive site, in case
    363          some other package would contain this missing \`$1' program."
    364     exit 1
    365     ;;
    366 esac
    367 
    368 exit 0
    369 
    370 # Local variables:
    371 # eval: (add-hook 'write-file-hooks 'time-stamp)
    372 # time-stamp-start: "scriptversion="
    373 # time-stamp-format: "%:y-%02m-%02d.%02H"
    374 # time-stamp-time-zone: "UTC"
    375 # time-stamp-end: "; # UTC"
    376 # End:
    377