bootstrap

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