1#! /bin/sh
2# $MirOS: src/gnu/share/missing,v 1.3 2008/05/03 22:27:30 tg Exp $
3# $miros: contrib/gnu/automake/lib/missing,v 1.4 2008/05/02 23:31:53 tg Exp $
4#-
5# Common stub for a few missing GNU programs while installing.
6
7scriptversion=2006-05-10.23
8
9# Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006
10#   Free Software Foundation, Inc.
11# Originally by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
12
13# This program is free software; you can redistribute it and/or modify
14# it under the terms of the GNU General Public License as published by
15# the Free Software Foundation; either version 2, or (at your option)
16# any later version.
17
18# This program is distributed in the hope that it will be useful,
19# but WITHOUT ANY WARRANTY; without even the implied warranty of
20# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21# GNU General Public License for more details.
22
23# You should have received a copy of the GNU General Public License
24# along with this program; if not, write to the Free Software
25# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
26# 02110-1301, USA.
27
28# As a special exception to the GNU General Public License, if you
29# distribute this file as part of a program that contains a
30# configuration script generated by Autoconf, you may include it under
31# the same distribution terms that you use for the rest of that program.
32
33if test $# -eq 0; then
34  echo 1>&2 "Try \`$0 --help' for more information"
35  exit 1
36fi
37
38run=:
39sed_output='s/.* --output[ =]\([^ ]*\).*/\1/p'
40sed_minuso='s/.* -o \([^ ]*\).*/\1/p'
41
42# In the cases where this matters, `missing' is being run in the
43# srcdir already.
44if test -f configure.ac; then
45  configure_ac=configure.ac
46else
47  configure_ac=configure.in
48fi
49
50msg="missing on your system"
51
52case $1 in
53--run)
54  # Try to run requested program, and just exit if it succeeds.
55  run=
56  shift
57  "$@" && exit 0
58  # Exit code 63 means version mismatch.  This often happens
59  # when the user try to use an ancient version of a tool on
60  # a file that requires a minimum version.  In this case we
61  # we should proceed has if the program had been absent, or
62  # if --run hadn't been passed.
63  if test $? = 63; then
64    run=:
65    msg="probably too old"
66  fi
67  ;;
68
69  -h|--h|--he|--hel|--help)
70    echo "\
71$0 [OPTION]... PROGRAM [ARGUMENT]...
72
73Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
74error status if there is no known handling for PROGRAM.
75
76Options:
77  -h, --help      display this help and exit
78  -v, --version   output version information and exit
79  --run           try to run the given command, and emulate it if it fails
80
81Supported PROGRAM values:
82  aclocal      touch file \`aclocal.m4'
83  autoconf     touch file \`configure'
84  autoheader   touch file \`config.h.in'
85  autom4te     touch the output file, or create a stub one
86  automake     touch all \`Makefile.in' files
87  bison        create \`y.tab.[ch]', if possible, from existing .[ch]
88  flex         create \`lex.yy.c', if possible, from existing .c
89  help2man     touch the output file
90  lex          create \`lex.yy.c', if possible, from existing .c
91  makeinfo     touch the output file
92  tar          try tar, gnutar, gtar, then tar without non-portable flags
93  yacc         create \`y.tab.[ch]', if possible, from existing .[ch]
94
95Send bug reports to <bug-automake@gnu.org>."
96    exit $?
97    ;;
98
99  -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
100    echo "missing $scriptversion (GNU Automake)"
101    exit $?
102    ;;
103
104  -*)
105    echo 1>&2 "$0: Unknown \`$1' option"
106    echo 1>&2 "Try \`$0 --help' for more information"
107    exit 1
108    ;;
109
110esac
111
112# Now exit if we have it, but it failed.  Also exit now if we
113# don't have it and --version was passed (most likely to detect
114# the program).
115case $1 in
116  lex|yacc)
117    # Not GNU programs, they don't have --version.
118    ;;
119
120  tar)
121    if test -n "$run"; then
122       echo 1>&2 "ERROR: \`tar' requires --run"
123       exit 1
124    elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
125       exit 1
126    fi
127    ;;
128
129  *)
130    if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
131       # We have it, but it failed.
132       exit 1
133    elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
134       # Could not run --version or --help.  This is probably someone
135       # running `$TOOL --version' or `$TOOL --help' to check whether
136       # $TOOL exists and not knowing $TOOL uses missing.
137       exit 1
138    fi
139    ;;
140esac
141
142# If it does not exist, or fails to run (possibly an outdated version),
143# try to emulate it.
144case $1 in
145  aclocal*)
146    echo 1>&2 "\
147WARNING: \`$1' is $msg.  You should only need it if
148         you modified \`acinclude.m4' or \`${configure_ac}'.  You might want
149         to install the \`Automake' and \`Perl' packages.  Grab them from
150         any GNU archive site."
151    touch aclocal.m4
152    ;;
153
154  autoconf)
155    echo 1>&2 "\
156WARNING: \`$1' is $msg.  You should only need it if
157         you modified \`${configure_ac}'.  You might want to install the
158         \`Autoconf' and \`GNU m4' packages.  Grab them from any GNU
159         archive site."
160    touch configure
161    ;;
162
163  autoheader)
164    echo 1>&2 "\
165WARNING: \`$1' is $msg.  You should only need it if
166         you modified \`acconfig.h' or \`${configure_ac}'.  You might want
167         to install the \`Autoconf' and \`GNU m4' packages.  Grab them
168         from any GNU archive site."
169    files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
170    test -z "$files" && files="config.h"
171    touch_files=
172    for f in $files; do
173      case $f in
174      *:*) touch_files="$touch_files "`echo "$f" |
175				       sed -e 's/^[^:]*://' -e 's/:.*//'`;;
176      *) touch_files="$touch_files $f.in";;
177      esac
178    done
179    touch $touch_files
180    ;;
181
182  automake*)
183    echo 1>&2 "\
184WARNING: \`$1' is $msg.  You should only need it if
185         you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
186         You might want to install the \`Automake' and \`Perl' packages.
187         Grab them from any GNU archive site."
188    find . -type f -name Makefile.am -print |
189	   sed 's/\.am$/.in/' |
190	   while read f; do touch "$f"; done
191    ;;
192
193  autom4te)
194    echo 1>&2 "\
195WARNING: \`$1' is needed, but is $msg.
196         You might have modified some files without having the
197         proper tools for further handling them.
198         You can get \`$1' as part of \`Autoconf' from any GNU
199         archive site."
200
201    file=`echo "$*" | sed -n "$sed_output"`
202    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
203    if test -f "$file"; then
204	touch $file
205    else
206	test -z "$file" || exec >$file
207	echo "#! /bin/sh"
208	echo "# Created by GNU Automake missing as a replacement of"
209	echo "#  $ $@"
210	echo "exit 0"
211	chmod +x $file
212	exit 1
213    fi
214    ;;
215
216  bison|yacc)
217    echo 1>&2 "\
218WARNING: \`$1' $msg.  You should only need it if
219         you modified a \`.y' file.  You may need the \`Bison' package
220         in order for those modifications to take effect.  You can get
221         \`Bison' from any GNU archive site."
222    rm -f y.tab.c y.tab.h
223    if test $# -ne 1; then
224        eval LASTARG="\${$#}"
225	case $LASTARG in
226	*.y)
227	    SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
228	    if test -f "$SRCFILE"; then
229	         cp "$SRCFILE" y.tab.c
230	    fi
231	    SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
232	    if test -f "$SRCFILE"; then
233	         cp "$SRCFILE" y.tab.h
234	    fi
235	  ;;
236	esac
237    fi
238    if test ! -f y.tab.h; then
239	echo >y.tab.h
240    fi
241    if test ! -f y.tab.c; then
242	echo 'main() { return 0; }' >y.tab.c
243    fi
244    ;;
245
246  lex|flex)
247    echo 1>&2 "\
248WARNING: \`$1' is $msg.  You should only need it if
249         you modified a \`.l' file.  You may need the \`Flex' package
250         in order for those modifications to take effect.  You can get
251         \`Flex' from any GNU archive site."
252    rm -f lex.yy.c
253    if test $# -ne 1; then
254        eval LASTARG="\${$#}"
255	case $LASTARG in
256	*.l)
257	    SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
258	    if test -f "$SRCFILE"; then
259	         cp "$SRCFILE" lex.yy.c
260	    fi
261	  ;;
262	esac
263    fi
264    if test ! -f lex.yy.c; then
265	echo 'main() { return 0; }' >lex.yy.c
266    fi
267    ;;
268
269  help2man)
270    echo 1>&2 "\
271WARNING: \`$1' is $msg.  You should only need it if
272	 you modified a dependency of a manual page.  You may need the
273	 \`Help2man' package in order for those modifications to take
274	 effect.  You can get \`Help2man' from any GNU archive site."
275
276    file=`echo "$*" | sed -n "$sed_output"`
277    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
278    if test -f "$file"; then
279	touch $file
280    else
281	test -z "$file" || exec >$file
282	echo ".ab help2man is required to generate this page"
283	exit 1
284    fi
285    ;;
286
287  makeinfo)
288    echo 1>&2 "\
289WARNING: \`$1' is $msg.  You should only need it if
290         you modified a \`.texi' or \`.texinfo' file, or any other file
291         indirectly affecting the aspect of the manual.  The spurious
292         call might also be the consequence of using a buggy \`make' (AIX,
293         DU, IRIX).  You might want to install the \`Texinfo' package or
294         the \`GNU make' package.  Grab either from any GNU archive site."
295    # The file to touch is that specified with -o ...
296    file=`echo "$*" | sed -n "$sed_output"`
297    test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
298    if test -z "$file"; then
299      # ... or it is the one specified with @setfilename ...
300      infile=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
301      file=`sed -n '
302	/^@setfilename/{
303	  s/.* \([^ ]*\) *$/\1/
304	  p
305	  q
306	}' $infile`
307      # ... or it is derived from the source name (dir/f.texi becomes f.info)
308      test -z "$file" && file=`echo "$infile" | sed 's,.*/,,;s,.[^.]*$,,'`.info
309    fi
310    # If the file does not exist, the user really needs makeinfo;
311    # let's fail without touching anything.
312    test -f $file || exit 1
313    touch $file
314    ;;
315
316  tar)
317    shift
318
319    # We have already tried tar in the generic part.
320    # Look for gnutar/gtar before invocation to avoid ugly error
321    # messages.
322    if (gnutar --version > /dev/null 2>&1); then
323       gnutar "$@" && exit 0
324    fi
325    if (gtar --version > /dev/null 2>&1); then
326       gtar "$@" && exit 0
327    fi
328    firstarg="$1"
329    if shift; then
330	case $firstarg in
331	*o*)
332	    firstarg=`echo "$firstarg" | sed s/o//`
333	    tar "$firstarg" "$@" && exit 0
334	    ;;
335	esac
336	case $firstarg in
337	*h*)
338	    firstarg=`echo "$firstarg" | sed s/h//`
339	    tar "$firstarg" "$@" && exit 0
340	    ;;
341	esac
342    fi
343
344    echo 1>&2 "\
345WARNING: I can't seem to be able to run \`tar' with the given arguments.
346         You may want to install GNU tar or Free paxutils, or check the
347         command line arguments."
348    exit 1
349    ;;
350
351  *)
352    echo 1>&2 "\
353WARNING: \`$1' is needed, and is $msg.
354         You might have modified some files without having the
355         proper tools for further handling them.  Check the \`README' file,
356         it often tells you about the needed prerequisites for installing
357         this package.  You may also peek at any GNU archive site, in case
358         some other package would contain this missing \`$1' program."
359    exit 1
360    ;;
361esac
362
363exit 0
364
365# Local variables:
366# eval: (add-hook 'write-file-hooks 'time-stamp)
367# time-stamp-start: "scriptversion="
368# time-stamp-format: "%:y-%02m-%02d.%02H"
369# time-stamp-end: "$"
370# End:
371