bootstrap

   1 #! /bin/sh
   2
   3 # bootstrap (GNU M4) version 2007-07-24
   4 # Written by Gary V. Vaughan  <gary@gnu.org>
   5
   6 # Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
   7
   8 # This file is part of GNU M4.
   9 #
  10 # GNU M4 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 3 of the License, or
  13 # (at your option) any later version.
  14 #
  15 # GNU M4 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, see <http://www.gnu.org/licenses/>.
  22
  23 # Usage: $progname [options]
  24
  25 # -f      --force            bootstrap even when sources are not from CVS
  26 # -v      --version          print version information
  27 # -h,-?   --help             print short or long help message
  28
  29 # You can also set the following variables to help $progname
  30 # locate the right tools:
  31 #   AUTORECONF, GNULIB_TOOL, RM, SED
  32
  33 # This script bootstraps a CVS checkout of GNU M4 by correctly
  34 # calling out to parts of the GNU Build Platform.  Currently this
  35 # requires GNU Autoconf 2.60, GNU Automake 1.9.6, and bleeding edge
  36 # CVS snapshots of GNU Gnulib.
  37
  38 # Report bugs to <bug-m4@gnu.org>
  39
  40 : ${AUTORECONF=autoreconf}
  41 : ${GNULIB_TOOL=gnulib-tool}
  42 : ${RM=rm -f}
  43 : ${SED=sed}
  44
  45 dirname="s,/[^/]*$,,"
  46 basename="s,^.*/,,g"
  47
  48 # Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
  49 # is ksh but when the shell is invoked as "sh" and the current value of
  50 # the _XPG environment variable is not equal to 1 (one), the special
  51 # positional parameter $0, within a function call, is the name of the
  52 # function.
  53 progpath="$0"
  54
  55 # The name of this program:
  56 progname=`echo "$progpath" | $SED "$basename"`
  57 PROGRAM=bootstrap
  58
  59 # Detect whether this is a CVS checkout or a tarball
  60 CVS_only_file=HACKING
  61
  62 # func_echo arg...
  63 # Echo program name prefixed message.
  64 func_echo ()
  65 {
  66     echo $progname: ${1+"$@"}
  67 }
  68
  69
  70 # func_error arg...
  71 # Echo program name prefixed message to standard error.
  72 func_error ()
  73 {
  74     echo $progname: ${1+"$@"} >&2
  75 }
  76
  77 # func_fatal_error arg...
  78 # Echo program name prefixed message to standard error, and exit.
  79 func_fatal_error ()
  80 {
  81     func_error ${1+"$@"}
  82     exit $EXIT_FAILURE
  83 }
  84
  85 # func_verbose arg...
  86 # Echo program name prefixed message in verbose mode only.
  87 func_verbose ()
  88 {
  89     $opt_verbose && func_error ${1+"$@"}
  90 }
  91
  92 # func_missing_arg argname
  93 # Echo program name prefixed message to standard error and set global
  94 # exit_cmd.
  95 func_missing_arg ()
  96 {
  97    func_error "missing argument for $1"
  98    exit_cmd=exit
  99 }
 100
 101 # func_fatal_help arg...
 102 # Echo program name prefixed message to standard error, followed by
 103 # a help hint, and exit.
 104 func_fatal_help ()
 105 {
 106     func_error ${1+"$@"}
 107     func_fatal_error "Try \`$progname --help' for more information."
 108 }
 109
 110 # func_missing_arg argname
 111 # Echo program name prefixed message to standard error and set global
 112 # exit_cmd.
 113 func_missing_arg ()
 114 {
 115    func_error "missing argument for $1"
 116    exit_cmd=exit
 117 }
 118
 119 # func_usage
 120 # Echo short help message to standard output and exit.
 121 func_usage ()
 122 {
 123     $SED '/^# Usage:/,/# -h/ {
 124         s/^# //; s/^# *$//;
 125         s/\$progname/'$progname'/;
 126         p;
 127     }; d' < "$progpath"
 128     echo
 129     echo "run \`$progname --help | more' for full usage"
 130     exit $EXIT_SUCCESS
 131 }
 132
 133 # func_help
 134 # Echo long help message to standard output and exit.
 135 func_help ()
 136 {
 137     $SED '/^# Usage:/,/# Report bugs to/ {
 138         s/^# //; s/^# *$//;
 139         s/\$progname/'$progname'/;
 140         p;
 141      }; d' < "$progpath"
 142     exit $EXIT_SUCCESS
 143 }
 144
 145 # func_version
 146 # Echo version message to standard output and exit.
 147 func_version ()
 148 {
 149     $SED '/^# '$PROGRAM' (GNU /,/# warranty; / {
 150         s/^# //; s/^# *$//;
 151         s/\((C)\)[ 0-9,-]*\( [1-9][0-9]*\)/\1\2/;
 152         p;
 153      }; d' < "$progpath"
 154      exit $EXIT_SUCCESS
 155 }
 156
 157 # func_update
 158 # Copy $1 to $2 if it is newer.
 159 func_update ()
 160 {
 161   if test -f "$2" && cmp -s "$1" "$2" ; then
 162     func_verbose "$2 is up-to-date"
 163   else
 164     func_echo "copying $1 -> $2"
 165     cp "$1" "$2"
 166   fi
 167 }
 168
 169 # Parse options once, thoroughly.  This comes as soon as possible in
 170 # the script to make things like `bootstrap --version' happen quickly.
 171 {
 172   # sed scripts:
 173   my_sed_single_opt='1s/^\(..\).*$/\1/;q'
 174   my_sed_single_rest='1s/^..\(.*\)$/\1/;q'
 175   my_sed_long_opt='1s/^\(--[^=]*\)=.*/\1/;q'
 176   my_sed_long_arg='1s/^--[^=]*=//'
 177
 178   # this just eases exit handling
 179   while test $# -gt 0; do
 180     opt="$1"
 181     shift
 182     case $opt in
 183       # Separate optargs to short options:
 184       -f|--force)       CVS_only_file=                                  ;;
 185       -\?|-h)           func_usage                                      ;;
 186       --help)           func_help                                       ;;
 187       --version)        func_version                                    ;;
 188       --)               break                                           ;;
 189       -*)               func_fatal_help "unrecognized option \`$opt'"   ;;
 190       *)                set -- "$opt" ${1+"$@"};        break           ;;
 191     esac
 192   done
 193
 194   # Bail if the options were screwed
 195   $exit_cmd $EXIT_FAILURE
 196
 197   if test -n "$CVS_only_file" && test ! -r "$CVS_only_file"; then
 198     func_fatal_error "Bootstrapping from a non-CVS distribution is risky."
 199   fi
 200 }
 201
 202 ## ---------------------------- ##
 203 ## Find the gnulib module tree. ##
 204 ## ---------------------------- ##
 205
 206 case $GNULIB_TOOL in
 207     /*  )  gnulibdir=$GNULIB_TOOL ;;            # absolute
 208     */* )  gnulibdir=`pwd`/$GNULIB_TOOL ;;      # relative
 209     *   )  gnulibdir=`which "$GNULIB_TOOL"` ;;  # PATH search
 210 esac
 211
 212 # Follow symlinks
 213 while test -h "$gnulibdir"; do
 214
 215     # Resolve symbolic link.
 216     sedexpr1='s, -> ,#%%#,'
 217     sedexpr2='s,^.*#%%#\(.*\)$,\1,p'
 218     linkval=`LC_ALL=C ls -l "$gnulibdir" | $SED "$sedexpr1" | $SED -n "$sedexpr2"`
 219     test -n "$linkval" || break
 220
 221     case "$linkval" in
 222         /* ) gnulibdir="$linkval" ;;
 223         * )  gnulibdir=`echo "$gnulibdir" | sed -e 's,/[^/]*$,,'`/"$linkval" ;;
 224     esac
 225
 226 done
 227
 228 gnulibdir=`echo "$gnulibdir" | $SED "$dirname"`
 229
 230 ## ---------------------- ##
 231 ## Import Gnulib modules. ##
 232 ## ---------------------- ##
 233
 234 func_echo "running: $GNULIB_TOOL --update"
 235 $GNULIB_TOOL --update || func_fatal_error "gnulib-tool failed"
 236
 237 ## ----------- ##
 238 ## Autoreconf. ##
 239 ## ----------- ##
 240
 241 func_echo "running: $AUTORECONF --force --verbose --install"
 242 $AUTORECONF --force --verbose --install || func_fatal_error "autoreconf failed"
 243
 244 ## ---------------------------------------- ##
 245 ## Gnulib is more up-to-date than automake. ##
 246 ## ---------------------------------------- ##
 247
 248 func_update "$gnulibdir"/build-aux/config.guess config.guess
 249 func_update "$gnulibdir"/build-aux/config.sub config.sub
 250 func_update "$gnulibdir"/build-aux/depcomp depcomp
 251 func_update "$gnulibdir"/build-aux/install-sh install-sh
 252 func_update "$gnulibdir"/build-aux/mdate-sh doc/mdate-sh
 253 func_update "$gnulibdir"/build-aux/missing missing
 254 func_update "$gnulibdir"/build-aux/texinfo.tex doc/texinfo.tex
 255 func_update "$gnulibdir"/doc/COPYINGv3 COPYING
 256 func_update "$gnulibdir"/doc/INSTALL INSTALL
 257
 258 exit 0
 259
 260 # Local variables:
 261 # eval: (add-hook 'write-file-hooks 'time-stamp)
 262 # time-stamp-start: "# bootstrap (GNU M4) version "
 263 # time-stamp-format: "%:y-%02m-%02d"
 264 # time-stamp-end: "$"
 265 # End: