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Simplify Reddit example more
author Adam Chlipala <adam@chlipala.net>
date Sat, 29 Sep 2012 10:34:11 -0400
parents dd5b333a7960
children
rev   line source
adam@0 1 #! /bin/sh
adam@0 2 # Common stub for a few missing GNU programs while installing.
adam@0 3
adam@20 4 scriptversion=2012-01-06.13; # UTC
adam@0 5
adam@0 6 # Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006,
adam@20 7 # 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
adam@0 8 # Originally by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
adam@0 9
adam@0 10 # This program is free software; you can redistribute it and/or modify
adam@0 11 # it under the terms of the GNU General Public License as published by
adam@0 12 # the Free Software Foundation; either version 2, or (at your option)
adam@0 13 # any later version.
adam@0 14
adam@0 15 # This program is distributed in the hope that it will be useful,
adam@0 16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
adam@0 17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
adam@0 18 # GNU General Public License for more details.
adam@0 19
adam@0 20 # You should have received a copy of the GNU General Public License
adam@0 21 # along with this program. If not, see <http://www.gnu.org/licenses/>.
adam@0 22
adam@0 23 # As a special exception to the GNU General Public License, if you
adam@0 24 # distribute this file as part of a program that contains a
adam@0 25 # configuration script generated by Autoconf, you may include it under
adam@0 26 # the same distribution terms that you use for the rest of that program.
adam@0 27
adam@0 28 if test $# -eq 0; then
adam@0 29 echo 1>&2 "Try \`$0 --help' for more information"
adam@0 30 exit 1
adam@0 31 fi
adam@0 32
adam@0 33 run=:
adam@0 34 sed_output='s/.* --output[ =]\([^ ]*\).*/\1/p'
adam@0 35 sed_minuso='s/.* -o \([^ ]*\).*/\1/p'
adam@0 36
adam@0 37 # In the cases where this matters, `missing' is being run in the
adam@0 38 # srcdir already.
adam@0 39 if test -f configure.ac; then
adam@0 40 configure_ac=configure.ac
adam@0 41 else
adam@0 42 configure_ac=configure.in
adam@0 43 fi
adam@0 44
adam@0 45 msg="missing on your system"
adam@0 46
adam@0 47 case $1 in
adam@0 48 --run)
adam@0 49 # Try to run requested program, and just exit if it succeeds.
adam@0 50 run=
adam@0 51 shift
adam@0 52 "$@" && exit 0
adam@0 53 # Exit code 63 means version mismatch. This often happens
adam@0 54 # when the user try to use an ancient version of a tool on
adam@0 55 # a file that requires a minimum version. In this case we
adam@0 56 # we should proceed has if the program had been absent, or
adam@0 57 # if --run hadn't been passed.
adam@0 58 if test $? = 63; then
adam@0 59 run=:
adam@0 60 msg="probably too old"
adam@0 61 fi
adam@0 62 ;;
adam@0 63
adam@0 64 -h|--h|--he|--hel|--help)
adam@0 65 echo "\
adam@0 66 $0 [OPTION]... PROGRAM [ARGUMENT]...
adam@0 67
adam@0 68 Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
adam@0 69 error status if there is no known handling for PROGRAM.
adam@0 70
adam@0 71 Options:
adam@0 72 -h, --help display this help and exit
adam@0 73 -v, --version output version information and exit
adam@0 74 --run try to run the given command, and emulate it if it fails
adam@0 75
adam@0 76 Supported PROGRAM values:
adam@0 77 aclocal touch file \`aclocal.m4'
adam@0 78 autoconf touch file \`configure'
adam@0 79 autoheader touch file \`config.h.in'
adam@0 80 autom4te touch the output file, or create a stub one
adam@0 81 automake touch all \`Makefile.in' files
adam@0 82 bison create \`y.tab.[ch]', if possible, from existing .[ch]
adam@0 83 flex create \`lex.yy.c', if possible, from existing .c
adam@0 84 help2man touch the output file
adam@0 85 lex create \`lex.yy.c', if possible, from existing .c
adam@0 86 makeinfo touch the output file
adam@0 87 yacc create \`y.tab.[ch]', if possible, from existing .[ch]
adam@0 88
adam@0 89 Version suffixes to PROGRAM as well as the prefixes \`gnu-', \`gnu', and
adam@0 90 \`g' are ignored when checking the name.
adam@0 91
adam@0 92 Send bug reports to <bug-automake@gnu.org>."
adam@0 93 exit $?
adam@0 94 ;;
adam@0 95
adam@0 96 -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
adam@0 97 echo "missing $scriptversion (GNU Automake)"
adam@0 98 exit $?
adam@0 99 ;;
adam@0 100
adam@0 101 -*)
adam@0 102 echo 1>&2 "$0: Unknown \`$1' option"
adam@0 103 echo 1>&2 "Try \`$0 --help' for more information"
adam@0 104 exit 1
adam@0 105 ;;
adam@0 106
adam@0 107 esac
adam@0 108
adam@0 109 # normalize program name to check for.
adam@0 110 program=`echo "$1" | sed '
adam@0 111 s/^gnu-//; t
adam@0 112 s/^gnu//; t
adam@0 113 s/^g//; t'`
adam@0 114
adam@0 115 # Now exit if we have it, but it failed. Also exit now if we
adam@0 116 # don't have it and --version was passed (most likely to detect
adam@0 117 # the program). This is about non-GNU programs, so use $1 not
adam@0 118 # $program.
adam@0 119 case $1 in
adam@0 120 lex*|yacc*)
adam@0 121 # Not GNU programs, they don't have --version.
adam@0 122 ;;
adam@0 123
adam@0 124 *)
adam@0 125 if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
adam@0 126 # We have it, but it failed.
adam@0 127 exit 1
adam@0 128 elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
adam@0 129 # Could not run --version or --help. This is probably someone
adam@0 130 # running `$TOOL --version' or `$TOOL --help' to check whether
adam@0 131 # $TOOL exists and not knowing $TOOL uses missing.
adam@0 132 exit 1
adam@0 133 fi
adam@0 134 ;;
adam@0 135 esac
adam@0 136
adam@0 137 # If it does not exist, or fails to run (possibly an outdated version),
adam@0 138 # try to emulate it.
adam@0 139 case $program in
adam@0 140 aclocal*)
adam@0 141 echo 1>&2 "\
adam@0 142 WARNING: \`$1' is $msg. You should only need it if
adam@0 143 you modified \`acinclude.m4' or \`${configure_ac}'. You might want
adam@0 144 to install the \`Automake' and \`Perl' packages. Grab them from
adam@0 145 any GNU archive site."
adam@0 146 touch aclocal.m4
adam@0 147 ;;
adam@0 148
adam@0 149 autoconf*)
adam@0 150 echo 1>&2 "\
adam@0 151 WARNING: \`$1' is $msg. You should only need it if
adam@0 152 you modified \`${configure_ac}'. You might want to install the
adam@0 153 \`Autoconf' and \`GNU m4' packages. Grab them from any GNU
adam@0 154 archive site."
adam@0 155 touch configure
adam@0 156 ;;
adam@0 157
adam@0 158 autoheader*)
adam@0 159 echo 1>&2 "\
adam@0 160 WARNING: \`$1' is $msg. You should only need it if
adam@0 161 you modified \`acconfig.h' or \`${configure_ac}'. You might want
adam@0 162 to install the \`Autoconf' and \`GNU m4' packages. Grab them
adam@0 163 from any GNU archive site."
adam@0 164 files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
adam@0 165 test -z "$files" && files="config.h"
adam@0 166 touch_files=
adam@0 167 for f in $files; do
adam@0 168 case $f in
adam@0 169 *:*) touch_files="$touch_files "`echo "$f" |
adam@0 170 sed -e 's/^[^:]*://' -e 's/:.*//'`;;
adam@0 171 *) touch_files="$touch_files $f.in";;
adam@0 172 esac
adam@0 173 done
adam@0 174 touch $touch_files
adam@0 175 ;;
adam@0 176
adam@0 177 automake*)
adam@0 178 echo 1>&2 "\
adam@0 179 WARNING: \`$1' is $msg. You should only need it if
adam@0 180 you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
adam@0 181 You might want to install the \`Automake' and \`Perl' packages.
adam@0 182 Grab them from any GNU archive site."
adam@0 183 find . -type f -name Makefile.am -print |
adam@0 184 sed 's/\.am$/.in/' |
adam@0 185 while read f; do touch "$f"; done
adam@0 186 ;;
adam@0 187
adam@0 188 autom4te*)
adam@0 189 echo 1>&2 "\
adam@0 190 WARNING: \`$1' is needed, but is $msg.
adam@0 191 You might have modified some files without having the
adam@0 192 proper tools for further handling them.
adam@0 193 You can get \`$1' as part of \`Autoconf' from any GNU
adam@0 194 archive site."
adam@0 195
adam@0 196 file=`echo "$*" | sed -n "$sed_output"`
adam@0 197 test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
adam@0 198 if test -f "$file"; then
adam@0 199 touch $file
adam@0 200 else
adam@0 201 test -z "$file" || exec >$file
adam@0 202 echo "#! /bin/sh"
adam@0 203 echo "# Created by GNU Automake missing as a replacement of"
adam@0 204 echo "# $ $@"
adam@0 205 echo "exit 0"
adam@0 206 chmod +x $file
adam@0 207 exit 1
adam@0 208 fi
adam@0 209 ;;
adam@0 210
adam@0 211 bison*|yacc*)
adam@0 212 echo 1>&2 "\
adam@0 213 WARNING: \`$1' $msg. You should only need it if
adam@0 214 you modified a \`.y' file. You may need the \`Bison' package
adam@0 215 in order for those modifications to take effect. You can get
adam@0 216 \`Bison' from any GNU archive site."
adam@0 217 rm -f y.tab.c y.tab.h
adam@0 218 if test $# -ne 1; then
adam@20 219 eval LASTARG=\${$#}
adam@0 220 case $LASTARG in
adam@0 221 *.y)
adam@0 222 SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
adam@0 223 if test -f "$SRCFILE"; then
adam@0 224 cp "$SRCFILE" y.tab.c
adam@0 225 fi
adam@0 226 SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
adam@0 227 if test -f "$SRCFILE"; then
adam@0 228 cp "$SRCFILE" y.tab.h
adam@0 229 fi
adam@0 230 ;;
adam@0 231 esac
adam@0 232 fi
adam@0 233 if test ! -f y.tab.h; then
adam@0 234 echo >y.tab.h
adam@0 235 fi
adam@0 236 if test ! -f y.tab.c; then
adam@0 237 echo 'main() { return 0; }' >y.tab.c
adam@0 238 fi
adam@0 239 ;;
adam@0 240
adam@0 241 lex*|flex*)
adam@0 242 echo 1>&2 "\
adam@0 243 WARNING: \`$1' is $msg. You should only need it if
adam@0 244 you modified a \`.l' file. You may need the \`Flex' package
adam@0 245 in order for those modifications to take effect. You can get
adam@0 246 \`Flex' from any GNU archive site."
adam@0 247 rm -f lex.yy.c
adam@0 248 if test $# -ne 1; then
adam@20 249 eval LASTARG=\${$#}
adam@0 250 case $LASTARG in
adam@0 251 *.l)
adam@0 252 SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
adam@0 253 if test -f "$SRCFILE"; then
adam@0 254 cp "$SRCFILE" lex.yy.c
adam@0 255 fi
adam@0 256 ;;
adam@0 257 esac
adam@0 258 fi
adam@0 259 if test ! -f lex.yy.c; then
adam@0 260 echo 'main() { return 0; }' >lex.yy.c
adam@0 261 fi
adam@0 262 ;;
adam@0 263
adam@0 264 help2man*)
adam@0 265 echo 1>&2 "\
adam@0 266 WARNING: \`$1' is $msg. You should only need it if
adam@0 267 you modified a dependency of a manual page. You may need the
adam@0 268 \`Help2man' package in order for those modifications to take
adam@0 269 effect. You can get \`Help2man' from any GNU archive site."
adam@0 270
adam@0 271 file=`echo "$*" | sed -n "$sed_output"`
adam@0 272 test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
adam@0 273 if test -f "$file"; then
adam@0 274 touch $file
adam@0 275 else
adam@0 276 test -z "$file" || exec >$file
adam@0 277 echo ".ab help2man is required to generate this page"
adam@0 278 exit $?
adam@0 279 fi
adam@0 280 ;;
adam@0 281
adam@0 282 makeinfo*)
adam@0 283 echo 1>&2 "\
adam@0 284 WARNING: \`$1' is $msg. You should only need it if
adam@0 285 you modified a \`.texi' or \`.texinfo' file, or any other file
adam@0 286 indirectly affecting the aspect of the manual. The spurious
adam@0 287 call might also be the consequence of using a buggy \`make' (AIX,
adam@0 288 DU, IRIX). You might want to install the \`Texinfo' package or
adam@0 289 the \`GNU make' package. Grab either from any GNU archive site."
adam@0 290 # The file to touch is that specified with -o ...
adam@0 291 file=`echo "$*" | sed -n "$sed_output"`
adam@0 292 test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
adam@0 293 if test -z "$file"; then
adam@0 294 # ... or it is the one specified with @setfilename ...
adam@0 295 infile=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
adam@0 296 file=`sed -n '
adam@0 297 /^@setfilename/{
adam@0 298 s/.* \([^ ]*\) *$/\1/
adam@0 299 p
adam@0 300 q
adam@0 301 }' $infile`
adam@0 302 # ... or it is derived from the source name (dir/f.texi becomes f.info)
adam@0 303 test -z "$file" && file=`echo "$infile" | sed 's,.*/,,;s,.[^.]*$,,'`.info
adam@0 304 fi
adam@0 305 # If the file does not exist, the user really needs makeinfo;
adam@0 306 # let's fail without touching anything.
adam@0 307 test -f $file || exit 1
adam@0 308 touch $file
adam@0 309 ;;
adam@0 310
adam@0 311 *)
adam@0 312 echo 1>&2 "\
adam@0 313 WARNING: \`$1' is needed, and is $msg.
adam@0 314 You might have modified some files without having the
adam@0 315 proper tools for further handling them. Check the \`README' file,
adam@0 316 it often tells you about the needed prerequisites for installing
adam@0 317 this package. You may also peek at any GNU archive site, in case
adam@0 318 some other package would contain this missing \`$1' program."
adam@0 319 exit 1
adam@0 320 ;;
adam@0 321 esac
adam@0 322
adam@0 323 exit 0
adam@0 324
adam@0 325 # Local variables:
adam@0 326 # eval: (add-hook 'write-file-hooks 'time-stamp)
adam@0 327 # time-stamp-start: "scriptversion="
adam@0 328 # time-stamp-format: "%:y-%02m-%02d.%02H"
adam@0 329 # time-stamp-time-zone: "UTC"
adam@0 330 # time-stamp-end: "; # UTC"
adam@0 331 # End: