external/bsd/libevent/dist/missing

   1 #! /bin/sh
   2 # Common stub for a few missing GNU programs while installing.
   3
   4 scriptversion=2012-01-06.18; # UTC
   5
   6 # Copyright (C) 1996-2012 Free Software Foundation, Inc.
   7 # Originally by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
   8
   9 # This program is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation; either version 2, or (at your option)
  12 # any later version.
  13
  14 # This program is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21
  22 # As a special exception to the GNU General Public License, if you
  23 # distribute this file as part of a program that contains a
  24 # configuration script generated by Autoconf, you may include it under
  25 # the same distribution terms that you use for the rest of that program.
  26
  27 if test $# -eq 0; then
  28   echo 1>&2 "Try '$0 --help' for more information"
  29   exit 1
  30 fi
  31
  32 run=:
  33 sed_output='s/.* --output[ =]\([^ ]*\).*/\1/p'
  34 sed_minuso='s/.* -o \([^ ]*\).*/\1/p'
  35
  36 # In the cases where this matters, 'missing' is being run in the
  37 # srcdir already.
  38 if test -f configure.ac; then
  39   configure_ac=configure.ac
  40 else
  41   configure_ac=configure.in
  42 fi
  43
  44 msg="missing on your system"
  45
  46 case $1 in
  47 --run)
  48   # Try to run requested program, and just exit if it succeeds.
  49   run=
  50   shift
  51   "$@" && exit 0
  52   # Exit code 63 means version mismatch.  This often happens
  53   # when the user try to use an ancient version of a tool on
  54   # a file that requires a minimum version.  In this case we
  55   # we should proceed has if the program had been absent, or
  56   # if --run hadn't been passed.
  57   if test $? = 63; then
  58     run=:
  59     msg="probably too old"
  60   fi
  61   ;;
  62
  63   -h|--h|--he|--hel|--help)
  64     echo "\
  65 $0 [OPTION]... PROGRAM [ARGUMENT]...
  66
  67 Handle 'PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
  68 error status if there is no known handling for PROGRAM.
  69
  70 Options:
  71   -h, --help      display this help and exit
  72   -v, --version   output version information and exit
  73   --run           try to run the given command, and emulate it if it fails
  74
  75 Supported PROGRAM values:
  76   aclocal      touch file 'aclocal.m4'
  77   autoconf     touch file 'configure'
  78   autoheader   touch file 'config.h.in'
  79   autom4te     touch the output file, or create a stub one
  80   automake     touch all 'Makefile.in' files
  81   bison        create 'y.tab.[ch]', if possible, from existing .[ch]
  82   flex         create 'lex.yy.c', if possible, from existing .c
  83   help2man     touch the output file
  84   lex          create 'lex.yy.c', if possible, from existing .c
  85   makeinfo     touch the output file
  86   yacc         create 'y.tab.[ch]', if possible, from existing .[ch]
  87
  88 Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and
  89 'g' are ignored when checking the name.
  90
  91 Send bug reports to <bug-automake@gnu.org>."
  92     exit $?
  93     ;;
  94
  95   -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
  96     echo "missing $scriptversion (GNU Automake)"
  97     exit $?
  98     ;;
  99
 100   -*)
 101     echo 1>&2 "$0: Unknown '$1' option"
 102     echo 1>&2 "Try '$0 --help' for more information"
 103     exit 1
 104     ;;
 105
 106 esac
 107
 108 # normalize program name to check for.
 109 program=`echo "$1" | sed '
 110   s/^gnu-//; t
 111   s/^gnu//; t
 112   s/^g//; t'`
 113
 114 # Now exit if we have it, but it failed.  Also exit now if we
 115 # don't have it and --version was passed (most likely to detect
 116 # the program).  This is about non-GNU programs, so use $1 not
 117 # $program.
 118 case $1 in
 119   lex*|yacc*)
 120     # Not GNU programs, they don't have --version.
 121     ;;
 122
 123   *)
 124     if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
 125        # We have it, but it failed.
 126        exit 1
 127     elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
 128        # Could not run --version or --help.  This is probably someone
 129        # running '$TOOL --version' or '$TOOL --help' to check whether
 130        # $TOOL exists and not knowing $TOOL uses missing.
 131        exit 1
 132     fi
 133     ;;
 134 esac
 135
 136 # If it does not exist, or fails to run (possibly an outdated version),
 137 # try to emulate it.
 138 case $program in
 139   aclocal*)
 140     echo 1>&2 "\
 141 WARNING: '$1' is $msg.  You should only need it if
 142          you modified 'acinclude.m4' or '${configure_ac}'.  You might want
 143          to install the Automake and Perl packages.  Grab them from
 144          any GNU archive site."
 145     touch aclocal.m4
 146     ;;
 147
 148   autoconf*)
 149     echo 1>&2 "\
 150 WARNING: '$1' is $msg.  You should only need it if
 151          you modified '${configure_ac}'.  You might want to install the
 152          Autoconf and GNU m4 packages.  Grab them from any GNU
 153          archive site."
 154     touch configure
 155     ;;
 156
 157   autoheader*)
 158     echo 1>&2 "\
 159 WARNING: '$1' is $msg.  You should only need it if
 160          you modified 'acconfig.h' or '${configure_ac}'.  You might want
 161          to install the Autoconf and GNU m4 packages.  Grab them
 162          from any GNU archive site."
 163     files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
 164     test -z "$files" && files="config.h"
 165     touch_files=
 166     for f in $files; do
 167       case $f in
 168       *:*) touch_files="$touch_files "`echo "$f" |
 169                                        sed -e 's/^[^:]*://' -e 's/:.*//'`;;
 170       *) touch_files="$touch_files $f.in";;
 171       esac
 172     done
 173     touch $touch_files
 174     ;;
 175
 176   automake*)
 177     echo 1>&2 "\
 178 WARNING: '$1' is $msg.  You should only need it if
 179          you modified 'Makefile.am', 'acinclude.m4' or '${configure_ac}'.
 180          You might want to install the Automake and Perl packages.
 181          Grab them from any GNU archive site."
 182     find . -type f -name Makefile.am -print |
 183            sed 's/\.am$/.in/' |
 184            while read f; do touch "$f"; done
 185     ;;
 186
 187   autom4te*)
 188     echo 1>&2 "\
 189 WARNING: '$1' is needed, but is $msg.
 190          You might have modified some files without having the
 191          proper tools for further handling them.
 192          You can get '$1' as part of Autoconf from any GNU
 193          archive site."
 194
 195     file=`echo "$*" | sed -n "$sed_output"`
 196     test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
 197     if test -f "$file"; then
 198         touch $file
 199     else
 200         test -z "$file" || exec >$file
 201         echo "#! /bin/sh"
 202         echo "# Created by GNU Automake missing as a replacement of"
 203         echo "#  $ $@"
 204         echo "exit 0"
 205         chmod +x $file
 206         exit 1
 207     fi
 208     ;;
 209
 210   bison*|yacc*)
 211     echo 1>&2 "\
 212 WARNING: '$1' $msg.  You should only need it if
 213          you modified a '.y' file.  You may need the Bison package
 214          in order for those modifications to take effect.  You can get
 215          Bison from any GNU archive site."
 216     rm -f y.tab.c y.tab.h
 217     if test $# -ne 1; then
 218         eval LASTARG=\${$#}
 219         case $LASTARG in
 220         *.y)
 221             SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
 222             if test -f "$SRCFILE"; then
 223                  cp "$SRCFILE" y.tab.c
 224             fi
 225             SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
 226             if test -f "$SRCFILE"; then
 227                  cp "$SRCFILE" y.tab.h
 228             fi
 229           ;;
 230         esac
 231     fi
 232     if test ! -f y.tab.h; then
 233         echo >y.tab.h
 234     fi
 235     if test ! -f y.tab.c; then
 236         echo 'main() { return 0; }' >y.tab.c
 237     fi
 238     ;;
 239
 240   lex*|flex*)
 241     echo 1>&2 "\
 242 WARNING: '$1' is $msg.  You should only need it if
 243          you modified a '.l' file.  You may need the Flex package
 244          in order for those modifications to take effect.  You can get
 245          Flex from any GNU archive site."
 246     rm -f lex.yy.c
 247     if test $# -ne 1; then
 248         eval LASTARG=\${$#}
 249         case $LASTARG in
 250         *.l)
 251             SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
 252             if test -f "$SRCFILE"; then
 253                  cp "$SRCFILE" lex.yy.c
 254             fi
 255           ;;
 256         esac
 257     fi
 258     if test ! -f lex.yy.c; then
 259         echo 'main() { return 0; }' >lex.yy.c
 260     fi
 261     ;;
 262
 263   help2man*)
 264     echo 1>&2 "\
 265 WARNING: '$1' is $msg.  You should only need it if
 266          you modified a dependency of a manual page.  You may need the
 267          Help2man package in order for those modifications to take
 268          effect.  You can get Help2man from any GNU archive site."
 269
 270     file=`echo "$*" | sed -n "$sed_output"`
 271     test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
 272     if test -f "$file"; then
 273         touch $file
 274     else
 275         test -z "$file" || exec >$file
 276         echo ".ab help2man is required to generate this page"
 277         exit $?
 278     fi
 279     ;;
 280
 281   makeinfo*)
 282     echo 1>&2 "\
 283 WARNING: '$1' is $msg.  You should only need it if
 284          you modified a '.texi' or '.texinfo' file, or any other file
 285          indirectly affecting the aspect of the manual.  The spurious
 286          call might also be the consequence of using a buggy 'make' (AIX,
 287          DU, IRIX).  You might want to install the Texinfo package or
 288          the GNU make package.  Grab either from any GNU archive site."
 289     # The file to touch is that specified with -o ...
 290     file=`echo "$*" | sed -n "$sed_output"`
 291     test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
 292     if test -z "$file"; then
 293       # ... or it is the one specified with @setfilename ...
 294       infile=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
 295       file=`sed -n '
 296         /^@setfilename/{
 297           s/.* \([^ ]*\) *$/\1/
 298           p
 299           q
 300         }' $infile`
 301       # ... or it is derived from the source name (dir/f.texi becomes f.info)
 302       test -z "$file" && file=`echo "$infile" | sed 's,.*/,,;s,.[^.]*$,,'`.info
 303     fi
 304     # If the file does not exist, the user really needs makeinfo;
 305     # let's fail without touching anything.
 306     test -f $file || exit 1
 307     touch $file
 308     ;;
 309
 310   *)
 311     echo 1>&2 "\
 312 WARNING: '$1' is needed, and is $msg.
 313          You might have modified some files without having the
 314          proper tools for further handling them.  Check the 'README' file,
 315          it often tells you about the needed prerequisites for installing
 316          this package.  You may also peek at any GNU archive site, in case
 317          some other package would contain this missing '$1' program."
 318     exit 1
 319     ;;
 320 esac
 321
 322 exit 0
 323
 324 # Local variables:
 325 # eval: (add-hook 'write-file-hooks 'time-stamp)
 326 # time-stamp-start: "scriptversion="
 327 # time-stamp-format: "%:y-%02m-%02d.%02H"
 328 # time-stamp-time-zone: "UTC"
 329 # time-stamp-end: "; # UTC"
 330 # End: