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      1 #! /bin/sh
      2 # Common stub for a few missing GNU programs while installing.
      3 
      4 scriptversion=2012-01-06.18; # UTC
      5 
      6 # Copyright (C) 1996-2012 Free Software Foundation, Inc.
      7 # Originally by Fran,cois Pinard <pinard (at] iro.umontreal.ca>, 1996.
      8 
      9 # This program is free software; you can redistribute it and/or modify
     10 # it under the terms of the GNU General Public License as published by
     11 # the Free Software Foundation; either version 2, or (at your option)
     12 # any later version.
     13 
     14 # This program is distributed in the hope that it will be useful,
     15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
     16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     17 # GNU General Public License for more details.
     18 
     19 # You should have received a copy of the GNU General Public License
     20 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
     21 
     22 # As a special exception to the GNU General Public License, if you
     23 # distribute this file as part of a program that contains a
     24 # configuration script generated by Autoconf, you may include it under
     25 # the same distribution terms that you use for the rest of that program.
     26 
     27 if test $# -eq 0; then
     28   echo 1>&2 "Try '$0 --help' for more information"
     29   exit 1
     30 fi
     31 
     32 run=:
     33 sed_output='s/.* --output[ =]\([^ ]*\).*/\1/p'
     34 sed_minuso='s/.* -o \([^ ]*\).*/\1/p'
     35 
     36 # In the cases where this matters, 'missing' is being run in the
     37 # srcdir already.
     38 if test -f configure.ac; then
     39   configure_ac=configure.ac
     40 else
     41   configure_ac=configure.in
     42 fi
     43 
     44 msg="missing on your system"
     45 
     46 case $1 in
     47 --run)
     48   # Try to run requested program, and just exit if it succeeds.
     49   run=
     50   shift
     51   "$@" && exit 0
     52   # Exit code 63 means version mismatch.  This often happens
     53   # when the user try to use an ancient version of a tool on
     54   # a file that requires a minimum version.  In this case we
     55   # we should proceed has if the program had been absent, or
     56   # if --run hadn't been passed.
     57   if test $? = 63; then
     58     run=:
     59     msg="probably too old"
     60   fi
     61   ;;
     62 
     63   -h|--h|--he|--hel|--help)
     64     echo "\
     65 $0 [OPTION]... PROGRAM [ARGUMENT]...
     66 
     67 Handle 'PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
     68 error status if there is no known handling for PROGRAM.
     69 
     70 Options:
     71   -h, --help      display this help and exit
     72   -v, --version   output version information and exit
     73   --run           try to run the given command, and emulate it if it fails
     74 
     75 Supported PROGRAM values:
     76   aclocal      touch file 'aclocal.m4'
     77   autoconf     touch file 'configure'
     78   autoheader   touch file 'config.h.in'
     79   autom4te     touch the output file, or create a stub one
     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   yacc         create 'y.tab.[ch]', if possible, from existing .[ch]
     87 
     88 Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and
     89 'g' are ignored when checking the name.
     90 
     91 Send bug reports to <bug-automake (at] gnu.org>."
     92     exit $?
     93     ;;
     94 
     95   -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
     96     echo "missing $scriptversion (GNU Automake)"
     97     exit $?
     98     ;;
     99 
    100   -*)
    101     echo 1>&2 "$0: Unknown '$1' option"
    102     echo 1>&2 "Try '$0 --help' for more information"
    103     exit 1
    104     ;;
    105 
    106 esac
    107 
    108 # normalize program name to check for.
    109 program=`echo "$1" | sed '
    110   s/^gnu-//; t
    111   s/^gnu//; t
    112   s/^g//; t'`
    113 
    114 # Now exit if we have it, but it failed.  Also exit now if we
    115 # don't have it and --version was passed (most likely to detect
    116 # the program).  This is about non-GNU programs, so use $1 not
    117 # $program.
    118 case $1 in
    119   lex*|yacc*)
    120     # Not GNU programs, they don't have --version.
    121     ;;
    122 
    123   *)
    124     if test -z "$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 $program 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 "$sed_output"`
    196     test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
    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 test $# -ne 1; then
    218         eval LASTARG=\${$#}
    219 	case $LASTARG in
    220 	*.y)
    221 	    SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
    222 	    if test -f "$SRCFILE"; then
    223 	         cp "$SRCFILE" y.tab.c
    224 	    fi
    225 	    SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
    226 	    if test -f "$SRCFILE"; then
    227 	         cp "$SRCFILE" y.tab.h
    228 	    fi
    229 	  ;;
    230 	esac
    231     fi
    232     if test ! -f y.tab.h; then
    233 	echo >y.tab.h
    234     fi
    235     if test ! -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 test $# -ne 1; then
    248         eval LASTARG=\${$#}
    249 	case $LASTARG in
    250 	*.l)
    251 	    SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
    252 	    if test -f "$SRCFILE"; then
    253 	         cp "$SRCFILE" lex.yy.c
    254 	    fi
    255 	  ;;
    256 	esac
    257     fi
    258     if test ! -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 "$sed_output"`
    271     test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
    272     if test -f "$file"; then
    273 	touch $file
    274     else
    275 	test -z "$file" || exec >$file
    276 	echo ".ab help2man is required to generate this page"
    277 	exit $?
    278     fi
    279     ;;
    280 
    281   makeinfo*)
    282     echo 1>&2 "\
    283 WARNING: '$1' is $msg.  You should only need it if
    284          you modified a '.texi' or '.texinfo' file, or any other file
    285          indirectly affecting the aspect of the manual.  The spurious
    286          call might also be the consequence of using a buggy 'make' (AIX,
    287          DU, IRIX).  You might want to install the Texinfo package or
    288          the GNU make package.  Grab either from any GNU archive site."
    289     # The file to touch is that specified with -o ...
    290     file=`echo "$*" | sed -n "$sed_output"`
    291     test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
    292     if test -z "$file"; then
    293       # ... or it is the one specified with @setfilename ...
    294       infile=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
    295       file=`sed -n '
    296 	/^@setfilename/{
    297 	  s/.* \([^ ]*\) *$/\1/
    298 	  p
    299 	  q
    300 	}' $infile`
    301       # ... or it is derived from the source name (dir/f.texi becomes f.info)
    302       test -z "$file" && file=`echo "$infile" | sed 's,.*/,,;s,.[^.]*$,,'`.info
    303     fi
    304     # If the file does not exist, the user really needs makeinfo;
    305     # let's fail without touching anything.
    306     test -f $file || exit 1
    307     touch $file
    308     ;;
    309 
    310   *)
    311     echo 1>&2 "\
    312 WARNING: '$1' is needed, and is $msg.
    313          You might have modified some files without having the
    314          proper tools for further handling them.  Check the 'README' file,
    315          it often tells you about the needed prerequisites for installing
    316          this package.  You may also peek at any GNU archive site, in case
    317          some other package would contain this missing '$1' program."
    318     exit 1
    319     ;;
    320 esac
    321 
    322 exit 0
    323 
    324 # Local variables:
    325 # eval: (add-hook 'write-file-hooks 'time-stamp)
    326 # time-stamp-start: "scriptversion="
    327 # time-stamp-format: "%:y-%02m-%02d.%02H"
    328 # time-stamp-time-zone: "UTC"
    329 # time-stamp-end: "; # UTC"
    330 # End:
    331