bootstrap

   1 #! /bin/sh
   2
   3 # bootstrap (GNU M4) version 2006-09-21
   4 # Written by Gary V. Vaughan  <gary@gnu.org>
   5
   6 # Copyright (C) 2004, 2005, 2006 Free Software Foundation, Inc.
   7 # This is free software; see the source for copying conditions.  There is NO
   8 # warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   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 of the License, or
  13 # (at your option) any later version.
  14 #
  15 # This program is distributed in the hope that it will be useful, but
  16 # WITHOUT ANY WARRANTY; without even the implied warranty of
  17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18 # 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, a copy can be downloaded from
  22 # http://www.gnu.org/copyleft/gpl.html, or by writing to the Free
  23 # Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  24 # MA 02110-1301, USA.
  25
  26 # Usage: $progname [options]
  27
  28 # -f      --force            bootstrap even when sources are not from CVS
  29 # -v      --version          print version information
  30 # -h,-?   --help             print short or long help message
  31
  32 # You can also set the following variables to help $progname
  33 # locate the right tools:
  34 #   AUTORECONF, GNULIB_TOOL, RM, SED
  35
  36 # This script bootstraps a CVS checkout of GNU M4 by correctly
  37 # calling out to parts of the GNU Build Platform.  Currently this
  38 # requires GNU Autoconf 2.60, GNU Automake 1.9.6, and bleeding edge
  39 # CVS snapshots of GNU Gnulib.
  40
  41 # Report bugs to <bug-m4@gnu.org>
  42
  43 : ${AUTORECONF=autoreconf}
  44 : ${GNULIB_TOOL=gnulib-tool}
  45 : ${RM=rm -f}
  46 : ${SED=sed}
  47
  48 dirname="s,/[^/]*$,,"
  49 basename="s,^.*/,,g"
  50
  51 # Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
  52 # is ksh but when the shell is invoked as "sh" and the current value of
  53 # the _XPG environment variable is not equal to 1 (one), the special
  54 # positional parameter $0, within a function call, is the name of the
  55 # function.
  56 progpath="$0"
  57
  58 # The name of this program:
  59 progname=`echo "$progpath" | $SED "$basename"`
  60 PROGRAM=bootstrap
  61
  62 # Detect whether this is a CVS checkout or a tarball
  63 CVS_only_file=HACKING
  64
  65 # func_echo arg...
  66 # Echo program name prefixed message.
  67 func_echo ()
  68 {
  69     echo $progname: ${1+"$@"}
  70 }
  71
  72
  73 # func_error arg...
  74 # Echo program name prefixed message to standard error.
  75 func_error ()
  76 {
  77     echo $progname: ${1+"$@"} >&2
  78 }
  79
  80 # func_fatal_error arg...
  81 # Echo program name prefixed message to standard error, and exit.
  82 func_fatal_error ()
  83 {
  84     func_error ${1+"$@"}
  85     exit $EXIT_FAILURE
  86 }
  87
  88 # func_verbose arg...
  89 # Echo program name prefixed message in verbose mode only.
  90 func_verbose ()
  91 {
  92     $opt_verbose && func_error ${1+"$@"}
  93 }
  94
  95 # func_missing_arg argname
  96 # Echo program name prefixed message to standard error and set global
  97 # exit_cmd.
  98 func_missing_arg ()
  99 {
 100    func_error "missing argument for $1"
 101    exit_cmd=exit
 102 }
 103
 104 # func_fatal_help arg...
 105 # Echo program name prefixed message to standard error, followed by
 106 # a help hint, and exit.
 107 func_fatal_help ()
 108 {
 109     func_error ${1+"$@"}
 110     func_fatal_error "Try \`$progname --help' for more information."
 111 }
 112
 113 # func_missing_arg argname
 114 # Echo program name prefixed message to standard error and set global
 115 # exit_cmd.
 116 func_missing_arg ()
 117 {
 118    func_error "missing argument for $1"
 119    exit_cmd=exit
 120 }
 121
 122 # func_usage
 123 # Echo short help message to standard output and exit.
 124 func_usage ()
 125 {
 126     $SED '/^# Usage:/,/# -h/ {
 127         s/^# //; s/^# *$//;
 128         s/\$progname/'$progname'/;
 129         p;
 130     }; d' < "$progpath"
 131     echo
 132     echo "run \`$progname --help | more' for full usage"
 133     exit $EXIT_SUCCESS
 134 }
 135
 136 # func_help
 137 # Echo long help message to standard output and exit.
 138 func_help ()
 139 {
 140     $SED '/^# Usage:/,/# Report bugs to/ {
 141         s/^# //; s/^# *$//;
 142         s/\$progname/'$progname'/;
 143         p;
 144      }; d' < "$progpath"
 145     exit $EXIT_SUCCESS
 146 }
 147
 148 # func_version
 149 # Echo version message to standard output and exit.
 150 func_version ()
 151 {
 152     $SED '/^# '$PROGRAM' (GNU /,/# warranty; / {
 153         s/^# //; s/^# *$//;
 154         s/\((C)\)[ 0-9,-]*\( [1-9][0-9]*\)/\1\2/;
 155         p;
 156      }; d' < "$progpath"
 157      exit $EXIT_SUCCESS
 158 }
 159
 160 # func_update
 161 # Copy $1 to $2 if it is newer.
 162 func_update ()
 163 {
 164   if test -f "$2" && cmp -s "$1" "$2" ; then
 165     func_verbose "$2 is up-to-date"
 166   else
 167     func_echo "copying $1 -> $2"
 168     cp "$1" "$2"
 169   fi
 170 }
 171
 172 # Parse options once, thoroughly.  This comes as soon as possible in
 173 # the script to make things like `bootstrap --version' happen quickly.
 174 {
 175   # sed scripts:
 176   my_sed_single_opt='1s/^\(..\).*$/\1/;q'
 177   my_sed_single_rest='1s/^..\(.*\)$/\1/;q'
 178   my_sed_long_opt='1s/^\(--[^=]*\)=.*/\1/;q'
 179   my_sed_long_arg='1s/^--[^=]*=//'
 180
 181   # this just eases exit handling
 182   while test $# -gt 0; do
 183     opt="$1"
 184     shift
 185     case $opt in
 186       # Separate optargs to short options:
 187       -f|--force)       CVS_only_file=                                  ;;
 188       -\?|-h)           func_usage                                      ;;
 189       --help)           func_help                                       ;;
 190       --version)        func_version                                    ;;
 191       --)               break                                           ;;
 192       -*)               func_fatal_help "unrecognized option \`$opt'"   ;;
 193       *)                set -- "$opt" ${1+"$@"};        break           ;;
 194     esac
 195   done
 196
 197   # Bail if the options were screwed
 198   $exit_cmd $EXIT_FAILURE
 199
 200   if test -n "$CVS_only_file" && test ! -r "$CVS_only_file"; then
 201     func_fatal_error "Bootstrapping from a non-CVS distribution is risky."
 202   fi
 203 }
 204
 205 ## ---------------------------- ##
 206 ## Find the gnulib module tree. ##
 207 ## ---------------------------- ##
 208
 209 case $GNULIB_TOOL in
 210     /*  )  gnulibdir=$GNULIB_TOOL ;;            # absolute
 211     */* )  gnulibdir=`pwd`/$GNULIB_TOOL ;;      # relative
 212     *   )  gnulibdir=`which "$GNULIB_TOOL"` ;;  # PATH search
 213 esac
 214
 215 # Follow symlinks
 216 while test -h "$gnulibdir"; do
 217
 218     # Resolve symbolic link.
 219     sedexpr1='s, -> ,#%%#,'
 220     sedexpr2='s,^.*#%%#\(.*\)$,\1,p'
 221     linkval=`LC_ALL=C ls -l "$gnulibdir" | $SED "$sedexpr1" | $SED -n "$sedexpr2"`
 222     test -n "$linkval" || break
 223
 224     case "$linkval" in
 225         /* ) gnulibdir="$linkval" ;;
 226         * )  gnulibdir=`echo "$gnulibdir" | sed -e 's,/[^/]*$,,'`/"$linkval" ;;
 227     esac
 228
 229 done
 230
 231 gnulibdir=`echo "$gnulibdir" | $SED "$dirname"`
 232
 233 ## ---------------------- ##
 234 ## Import Gnulib modules. ##
 235 ## ---------------------- ##
 236
 237 func_echo "running: $GNULIB_TOOL --update"
 238 $GNULIB_TOOL --update || func_fatal_error "gnulib-tool failed"
 239
 240 ## ----------- ##
 241 ## Autoreconf. ##
 242 ## ----------- ##
 243
 244 func_echo "running: $AUTORECONF --force --verbose --install"
 245 $AUTORECONF --force --verbose --install || func_fatal_error "autoreconf failed"
 246
 247 ## ---------------------------------------- ##
 248 ## Gnulib is more up-to-date than automake. ##
 249 ## ---------------------------------------- ##
 250
 251 func_update "$gnulibdir"/build-aux/config.guess config.guess
 252 func_update "$gnulibdir"/build-aux/config.sub config.sub
 253 func_update "$gnulibdir"/build-aux/depcomp depcomp
 254 func_update "$gnulibdir"/build-aux/install-sh install-sh
 255 func_update "$gnulibdir"/build-aux/mdate-sh doc/mdate-sh
 256 func_update "$gnulibdir"/build-aux/missing missing
 257 func_update "$gnulibdir"/build-aux/texinfo.tex doc/texinfo.tex
 258 func_update "$gnulibdir"/doc/COPYING COPYING
 259 func_update "$gnulibdir"/doc/INSTALL INSTALL
 260
 261 exit 0
 262
 263 # Local variables:
 264 # eval: (add-hook 'write-file-hooks 'time-stamp)
 265 # time-stamp-start: "# bootstrap (GNU M4) version "
 266 # time-stamp-format: "%:y-%02m-%02d"
 267 # time-stamp-end: "$"
 268 # End: