scripts/missing

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 137 # If it does not exist, or fails to run (possibly an outdated version),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