source: missing

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1#! /bin/sh
2# Common stub for a few missing GNU programs while installing.
3
4scriptversion=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 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
30if test $# -eq 0; then
31  echo 1>&2 "Try \`$0 --help' for more information"
32  exit 1
33fi
34
35run=:
36sed_output='s/.* --output[ =]\([^ ]*\).*/\1/p'
37sed_minuso='s/.* -o \([^ ]*\).*/\1/p'
38
39# In the cases where this matters, `missing' is being run in the
40# srcdir already.
41if test -f configure.ac; then
42  configure_ac=configure.ac
43else
44  configure_ac=configure.in
45fi
46
47msg="missing on your system"
48
49case $1 in
50--run)
51  # Try to run requested program, and just exit if it succeeds.
52  run=
53  shift
54  "$@" && exit 0
55  # Exit code 63 means version mismatch.  This often happens
56  # when the user try to use an ancient version of a tool on
57  # a file that requires a minimum version.  In this case we
58  # we should proceed has if the program had been absent, or
59  # if --run hadn't been passed.
60  if test $? = 63; then
61    run=:
62    msg="probably too old"
63  fi
64  ;;
65
66  -h|--h|--he|--hel|--help)
67    echo "\
68$0 [OPTION]... PROGRAM [ARGUMENT]...
69
70Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
71error status if there is no known handling for PROGRAM.
72
73Options:
74  -h, --help      display this help and exit
75  -v, --version   output version information and exit
76  --run           try to run the given command, and emulate it if it fails
77
78Supported PROGRAM values:
79  aclocal      touch file \`aclocal.m4'
80  autoconf     touch file \`configure'
81  autoheader   touch file \`config.h.in'
82  autom4te     touch the output file, or create a stub one
83  automake     touch all \`Makefile.in' files
84  bison        create \`y.tab.[ch]', if possible, from existing .[ch]
85  flex         create \`lex.yy.c', if possible, from existing .c
86  help2man     touch the output file
87  lex          create \`lex.yy.c', if possible, from existing .c
88  makeinfo     touch the output file
89  tar          try tar, gnutar, gtar, then tar without non-portable flags
90  yacc         create \`y.tab.[ch]', if possible, from existing .[ch]
91
92Send bug reports to <bug-automake@gnu.org>."
93    exit $?
94    ;;
95
96  -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
97    echo "missing $scriptversion (GNU Automake)"
98    exit $?
99    ;;
100
101  -*)
102    echo 1>&2 "$0: Unknown \`$1' option"
103    echo 1>&2 "Try \`$0 --help' for more information"
104    exit 1
105    ;;
106
107esac
108
109# Now exit if we have it, but it failed.  Also exit now if we
110# don't have it and --version was passed (most likely to detect
111# the program).
112case $1 in
113  lex|yacc)
114    # Not GNU programs, they don't have --version.
115    ;;
116
117  tar)
118    if test -n "$run"; then
119       echo 1>&2 "ERROR: \`tar' requires --run"
120       exit 1
121    elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
122       exit 1
123    fi
124    ;;
125
126  *)
127    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
128       # We have it, but it failed.
129       exit 1
130    elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
131       # Could not run --version or --help.  This is probably someone
132       # running `$TOOL --version' or `$TOOL --help' to check whether
133       # $TOOL exists and not knowing $TOOL uses missing.
134       exit 1
135    fi
136    ;;
137esac
138
139# If it does not exist, or fails to run (possibly an outdated version),
140# try to emulate it.
141case $1 in
142  aclocal*)
143    echo 1>&2 "\
144WARNING: \`$1' is $msg.  You should only need it if
145         you modified \`acinclude.m4' or \`${configure_ac}'.  You might want
146         to install the \`Automake' and \`Perl' packages.  Grab them from
147         any GNU archive site."
148    touch aclocal.m4
149    ;;
150
151  autoconf)
152    echo 1>&2 "\
153WARNING: \`$1' is $msg.  You should only need it if
154         you modified \`${configure_ac}'.  You might want to install the
155         \`Autoconf' and \`GNU m4' packages.  Grab them from any GNU
156         archive site."
157    touch configure
158    ;;
159
160  autoheader)
161    echo 1>&2 "\
162WARNING: \`$1' is $msg.  You should only need it if
163         you modified \`acconfig.h' or \`${configure_ac}'.  You might want
164         to install the \`Autoconf' and \`GNU m4' packages.  Grab them
165         from any GNU archive site."
166    files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
167    test -z "$files" && files="config.h"
168    touch_files=
169    for f in $files; do
170      case $f in
171      *:*) touch_files="$touch_files "`echo "$f" |
172                                       sed -e 's/^[^:]*://' -e 's/:.*//'`;;
173      *) touch_files="$touch_files $f.in";;
174      esac
175    done
176    touch $touch_files
177    ;;
178
179  automake*)
180    echo 1>&2 "\
181WARNING: \`$1' is $msg.  You should only need it if
182         you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
183         You might want to install the \`Automake' and \`Perl' packages.
184         Grab them from any GNU archive site."
185    find . -type f -name Makefile.am -print |
186           sed 's/\.am$/.in/' |
187           while read f; do touch "$f"; done
188    ;;
189
190  autom4te)
191    echo 1>&2 "\
192WARNING: \`$1' is needed, but is $msg.
193         You might have modified some files without having the
194         proper tools for further handling them.
195         You can get \`$1' as part of \`Autoconf' from any GNU
196         archive site."
197
198    file=`echo "$*" | sed -n "$sed_output"`
199    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
200    if test -f "$file"; then
201        touch $file
202    else
203        test -z "$file" || exec >$file
204        echo "#! /bin/sh"
205        echo "# Created by GNU Automake missing as a replacement of"
206        echo "#  $ $@"
207        echo "exit 0"
208        chmod +x $file
209        exit 1
210    fi
211    ;;
212
213  bison|yacc)
214    echo 1>&2 "\
215WARNING: \`$1' $msg.  You should only need it if
216         you modified a \`.y' file.  You may need the \`Bison' package
217         in order for those modifications to take effect.  You can get
218         \`Bison' from any GNU archive site."
219    rm -f y.tab.c y.tab.h
220    if test $# -ne 1; then
221        eval LASTARG="\${$#}"
222        case $LASTARG in
223        *.y)
224            SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
225            if test -f "$SRCFILE"; then
226                 cp "$SRCFILE" y.tab.c
227            fi
228            SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
229            if test -f "$SRCFILE"; then
230                 cp "$SRCFILE" y.tab.h
231            fi
232          ;;
233        esac
234    fi
235    if test ! -f y.tab.h; then
236        echo >y.tab.h
237    fi
238    if test ! -f y.tab.c; then
239        echo 'main() { return 0; }' >y.tab.c
240    fi
241    ;;
242
243  lex|flex)
244    echo 1>&2 "\
245WARNING: \`$1' is $msg.  You should only need it if
246         you modified a \`.l' file.  You may need the \`Flex' package
247         in order for those modifications to take effect.  You can get
248         \`Flex' from any GNU archive site."
249    rm -f lex.yy.c
250    if test $# -ne 1; then
251        eval LASTARG="\${$#}"
252        case $LASTARG in
253        *.l)
254            SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
255            if test -f "$SRCFILE"; then
256                 cp "$SRCFILE" lex.yy.c
257            fi
258          ;;
259        esac
260    fi
261    if test ! -f lex.yy.c; then
262        echo 'main() { return 0; }' >lex.yy.c
263    fi
264    ;;
265
266  help2man)
267    echo 1>&2 "\
268WARNING: \`$1' is $msg.  You should only need it if
269         you modified a dependency of a manual page.  You may need the
270         \`Help2man' package in order for those modifications to take
271         effect.  You can get \`Help2man' from any GNU archive site."
272
273    file=`echo "$*" | sed -n "$sed_output"`
274    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
275    if test -f "$file"; then
276        touch $file
277    else
278        test -z "$file" || exec >$file
279        echo ".ab help2man is required to generate this page"
280        exit 1
281    fi
282    ;;
283
284  makeinfo)
285    echo 1>&2 "\
286WARNING: \`$1' is $msg.  You should only need it if
287         you modified a \`.texi' or \`.texinfo' file, or any other file
288         indirectly affecting the aspect of the manual.  The spurious
289         call might also be the consequence of using a buggy \`make' (AIX,
290         DU, IRIX).  You might want to install the \`Texinfo' package or
291         the \`GNU make' package.  Grab either from any GNU archive site."
292    # The file to touch is that specified with -o ...
293    file=`echo "$*" | sed -n "$sed_output"`
294    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
295    if test -z "$file"; then
296      # ... or it is the one specified with @setfilename ...
297      infile=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
298      file=`sed -n '
299        /^@setfilename/{
300          s/.* \([^ ]*\) *$/\1/
301          p
302          q
303        }' $infile`
304      # ... or it is derived from the source name (dir/f.texi becomes f.info)
305      test -z "$file" && file=`echo "$infile" | sed 's,.*/,,;s,.[^.]*$,,'`.info
306    fi
307    # If the file does not exist, the user really needs makeinfo;
308    # let's fail without touching anything.
309    test -f $file || exit 1
310    touch $file
311    ;;
312
313  tar)
314    shift
315
316    # We have already tried tar in the generic part.
317    # Look for gnutar/gtar before invocation to avoid ugly error
318    # messages.
319    if (gnutar --version > /dev/null 2>&1); then
320       gnutar "$@" && exit 0
321    fi
322    if (gtar --version > /dev/null 2>&1); then
323       gtar "$@" && exit 0
324    fi
325    firstarg="$1"
326    if shift; then
327        case $firstarg in
328        *o*)
329            firstarg=`echo "$firstarg" | sed s/o//`
330            tar "$firstarg" "$@" && exit 0
331            ;;
332        esac
333        case $firstarg in
334        *h*)
335            firstarg=`echo "$firstarg" | sed s/h//`
336            tar "$firstarg" "$@" && exit 0
337            ;;
338        esac
339    fi
340
341    echo 1>&2 "\
342WARNING: I can't seem to be able to run \`tar' with the given arguments.
343         You may want to install GNU tar or Free paxutils, or check the
344         command line arguments."
345    exit 1
346    ;;
347
348  *)
349    echo 1>&2 "\
350WARNING: \`$1' is needed, and is $msg.
351         You might have modified some files without having the
352         proper tools for further handling them.  Check the \`README' file,
353         it often tells you about the needed prerequisites for installing
354         this package.  You may also peek at any GNU archive site, in case
355         some other package would contain this missing \`$1' program."
356    exit 1
357    ;;
358esac
359
360exit 0
361
362# Local variables:
363# eval: (add-hook 'write-file-hooks 'time-stamp)
364# time-stamp-start: "scriptversion="
365# time-stamp-format: "%:y-%02m-%02d.%02H"
366# time-stamp-end: "$"
367# End:
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