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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 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 
30 if test $# -eq 0; then
31   echo 1>&2 "Try \`$0 --help' for more information"
32   exit 1
33 fi
34 
35 run=:
36 sed_output='s/.* --output[ =]\([^ ]*\).*/\1/p'
37 sed_minuso='s/.* -o \([^ ]*\).*/\1/p'
38 
39 # In the cases where this matters, `missing' is being run in the
40 # srcdir already.
41 if test -f configure.ac; then
42   configure_ac=configure.ac
43 else
44   configure_ac=configure.in
45 fi
46 
47 msg="missing on your system"
48 
49 case $1 in
50 --run)
51   # Try to run requested program, and just exit if it succeeds.
52   run=
53   shift
54   "$@" && 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 
70 Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
71 error status if there is no known handling for PROGRAM.
72 
73 Options:
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 
78 Supported 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 
92 Send 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 
107 esac
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).
112 case $1 in
113   lex|yacc)
114     # Not GNU programs, they don't have --version.
115     ;;
116 
117   tar)
118     if test -n "$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     ;;
137 esac
138 
139 # If it does not exist, or fails to run (possibly an outdated version),
140 # try to emulate it.
141 case $1 in
142   aclocal*)
143     echo 1>&2 "\
144 WARNING: \`$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 "\
153 WARNING: \`$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 "\
162 WARNING: \`$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 "\
181 WARNING: \`$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 "\
192 WARNING: \`$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 "\
215 WARNING: \`$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 "\
245 WARNING: \`$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 "\
268 WARNING: \`$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 "\
286 WARNING: \`$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 "\
342 WARNING: 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 "\
350 WARNING: \`$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 \`$1' program."
356     exit 1
357     ;;
358 esac
359 
360 exit 0
361 
362 # Local variables:
363 # eval: (add-hook 'write-file-hooks 'time-stamp)
364 # time-stamp-start: "scriptversion="
365 # time-stamp-format: "%:y-%02m-%02d.%02H"
366 # time-stamp-end: "$"
367 # End:
368