lib/missing

   1 #! /bin/sh
   2 # Common stub for a few missing GNU programs while installing.
   3
   4 scriptversion=2008-11-24.07
   5
   6 # Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006,
   7 # 2008  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 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 's/^gnu-//; t; s/^gnu//; t; s/^g//; t'`
 112
 113 # Now exit if we have it, but it failed.  Also exit now if we
 114 # don't have it and --version was passed (most likely to detect
 115 # the program).  This is about non-GNU programs, so use $1 not
 116 # $program.
 117 case $1 in
 118   lex*|yacc*)
 119     # Not GNU programs, they don't have --version.
 120     ;;
 121
 122   tar*)
 123     if test -n "$run"; then
 124        echo 1>&2 "ERROR: \`tar' requires --run"
 125        exit 1
 126     elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
 127        exit 1
 128     fi
 129     ;;
 130
 131   *)
 132     if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
 133        # We have it, but it failed.
 134        exit 1
 135     elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
 136        # Could not run --version or --help.  This is probably someone
 137        # running `$TOOL --version' or `$TOOL --help' to check whether
 138        # $TOOL exists and not knowing $TOOL uses missing.
 139        exit 1
 140     fi
 141     ;;
 142 esac
 143
 144 # If it does not exist, or fails to run (possibly an outdated version),
 145 # try to emulate it.
 146 case $program in
 147   aclocal*)
 148     echo 1>&2 "\
 149 WARNING: \`$1' is $msg.  You should only need it if
 150          you modified \`acinclude.m4' or \`${configure_ac}'.  You might want
 151          to install the \`Automake' and \`Perl' packages.  Grab them from
 152          any GNU archive site."
 153     touch aclocal.m4
 154     ;;
 155
 156   autoconf*)
 157     echo 1>&2 "\
 158 WARNING: \`$1' is $msg.  You should only need it if
 159          you modified \`${configure_ac}'.  You might want to install the
 160          \`Autoconf' and \`GNU m4' packages.  Grab them from any GNU
 161          archive site."
 162     touch configure
 163     ;;
 164
 165   autoheader*)
 166     echo 1>&2 "\
 167 WARNING: \`$1' is $msg.  You should only need it if
 168          you modified \`acconfig.h' or \`${configure_ac}'.  You might want
 169          to install the \`Autoconf' and \`GNU m4' packages.  Grab them
 170          from any GNU archive site."
 171     files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
 172     test -z "$files" && files="config.h"
 173     touch_files=
 174     for f in $files; do
 175       case $f in
 176       *:*) touch_files="$touch_files "`echo "$f" |
 177                                        sed -e 's/^[^:]*://' -e 's/:.*//'`;;
 178       *) touch_files="$touch_files $f.in";;
 179       esac
 180     done
 181     touch $touch_files
 182     ;;
 183
 184   automake*)
 185     echo 1>&2 "\
 186 WARNING: \`$1' is $msg.  You should only need it if
 187          you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
 188          You might want to install the \`Automake' and \`Perl' packages.
 189          Grab them from any GNU archive site."
 190     find . -type f -name Makefile.am -print |
 191            sed 's/\.am$/.in/' |
 192            while read f; do touch "$f"; done
 193     ;;
 194
 195   autom4te*)
 196     echo 1>&2 "\
 197 WARNING: \`$1' is needed, but is $msg.
 198          You might have modified some files without having the
 199          proper tools for further handling them.
 200          You can get \`$1' as part of \`Autoconf' from any GNU
 201          archive site."
 202
 203     file=`echo "$*" | sed -n "$sed_output"`
 204     test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
 205     if test -f "$file"; then
 206         touch $file
 207     else
 208         test -z "$file" || exec >$file
 209         echo "#! /bin/sh"
 210         echo "# Created by GNU Automake missing as a replacement of"
 211         echo "#  $ $@"
 212         echo "exit 0"
 213         chmod +x $file
 214         exit 1
 215     fi
 216     ;;
 217
 218   bison*|yacc*)
 219     echo 1>&2 "\
 220 WARNING: \`$1' $msg.  You should only need it if
 221          you modified a \`.y' file.  You may need the \`Bison' package
 222          in order for those modifications to take effect.  You can get
 223          \`Bison' from any GNU archive site."
 224     rm -f y.tab.c y.tab.h
 225     if test $# -ne 1; then
 226         eval LASTARG="\${$#}"
 227         case $LASTARG in
 228         *.y)
 229             SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
 230             if test -f "$SRCFILE"; then
 231                  cp "$SRCFILE" y.tab.c
 232             fi
 233             SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
 234             if test -f "$SRCFILE"; then
 235                  cp "$SRCFILE" y.tab.h
 236             fi
 237           ;;
 238         esac
 239     fi
 240     if test ! -f y.tab.h; then
 241         echo >y.tab.h
 242     fi
 243     if test ! -f y.tab.c; then
 244         echo 'main() { return 0; }' >y.tab.c
 245     fi
 246     ;;
 247
 248   lex*|flex*)
 249     echo 1>&2 "\
 250 WARNING: \`$1' is $msg.  You should only need it if
 251          you modified a \`.l' file.  You may need the \`Flex' package
 252          in order for those modifications to take effect.  You can get
 253          \`Flex' from any GNU archive site."
 254     rm -f lex.yy.c
 255     if test $# -ne 1; then
 256         eval LASTARG="\${$#}"
 257         case $LASTARG in
 258         *.l)
 259             SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
 260             if test -f "$SRCFILE"; then
 261                  cp "$SRCFILE" lex.yy.c
 262             fi
 263           ;;
 264         esac
 265     fi
 266     if test ! -f lex.yy.c; then
 267         echo 'main() { return 0; }' >lex.yy.c
 268     fi
 269     ;;
 270
 271   help2man*)
 272     echo 1>&2 "\
 273 WARNING: \`$1' is $msg.  You should only need it if
 274          you modified a dependency of a manual page.  You may need the
 275          \`Help2man' package in order for those modifications to take
 276          effect.  You can get \`Help2man' from any GNU archive site."
 277
 278     file=`echo "$*" | sed -n "$sed_output"`
 279     test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
 280     if test -f "$file"; then
 281         touch $file
 282     else
 283         test -z "$file" || exec >$file
 284         echo ".ab help2man is required to generate this page"
 285         exit 1
 286     fi
 287     ;;
 288
 289   makeinfo*)
 290     echo 1>&2 "\
 291 WARNING: \`$1' is $msg.  You should only need it if
 292          you modified a \`.texi' or \`.texinfo' file, or any other file
 293          indirectly affecting the aspect of the manual.  The spurious
 294          call might also be the consequence of using a buggy \`make' (AIX,
 295          DU, IRIX).  You might want to install the \`Texinfo' package or
 296          the \`GNU make' package.  Grab either from any GNU archive site."
 297     # The file to touch is that specified with -o ...
 298     file=`echo "$*" | sed -n "$sed_output"`
 299     test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
 300     if test -z "$file"; then
 301       # ... or it is the one specified with @setfilename ...
 302       infile=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
 303       file=`sed -n '
 304         /^@setfilename/{
 305           s/.* \([^ ]*\) *$/\1/
 306           p
 307           q
 308         }' $infile`
 309       # ... or it is derived from the source name (dir/f.texi becomes f.info)
 310       test -z "$file" && file=`echo "$infile" | sed 's,.*/,,;s,.[^.]*$,,'`.info
 311     fi
 312     # If the file does not exist, the user really needs makeinfo;
 313     # let's fail without touching anything.
 314     test -f $file || exit 1
 315     touch $file
 316     ;;
 317
 318   tar*)
 319     shift
 320
 321     # We have already tried tar in the generic part.
 322     # Look for gnutar/gtar before invocation to avoid ugly error
 323     # messages.
 324     if (gnutar --version > /dev/null 2>&1); then
 325        gnutar "$@" && exit 0
 326     fi
 327     if (gtar --version > /dev/null 2>&1); then
 328        gtar "$@" && exit 0
 329     fi
 330     firstarg="$1"
 331     if shift; then
 332         case $firstarg in
 333         *o*)
 334             firstarg=`echo "$firstarg" | sed s/o//`
 335             tar "$firstarg" "$@" && exit 0
 336             ;;
 337         esac
 338         case $firstarg in
 339         *h*)
 340             firstarg=`echo "$firstarg" | sed s/h//`
 341             tar "$firstarg" "$@" && exit 0
 342             ;;
 343         esac
 344     fi
 345
 346     echo 1>&2 "\
 347 WARNING: I can't seem to be able to run \`tar' with the given arguments.
 348          You may want to install GNU tar or Free paxutils, or check the
 349          command line arguments."
 350     exit 1
 351     ;;
 352
 353   *)
 354     echo 1>&2 "\
 355 WARNING: \`$1' is needed, and is $msg.
 356          You might have modified some files without having the
 357          proper tools for further handling them.  Check the \`README' file,
 358          it often tells you about the needed prerequisites for installing
 359          this package.  You may also peek at any GNU archive site, in case
 360          some other package would contain this missing \`$1' program."
 361     exit 1
 362     ;;
 363 esac
 364
 365 exit 0
 366
 367 # Local variables:
 368 # eval: (add-hook 'write-file-hooks 'time-stamp)
 369 # time-stamp-start: "scriptversion="
 370 # time-stamp-format: "%:y-%02m-%02d.%02H"
 371 # time-stamp-end: "$"
 372 # End: