bootstrap

   1 #! /bin/sh
   2 # Print a version string.
   3 scriptversion=2011-03-03.12; # UTC
   4
   5 # Bootstrap this package from checked-out sources.
   6
   7 # Copyright (C) 2003-2011 Free Software Foundation, Inc.
   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 3 of the License, or
  12 # (at your option) 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 # Originally written by Paul Eggert.  The canonical version of this
  23 # script is maintained as build-aux/bootstrap in gnulib, however, to
  24 # be useful to your project, you should place a copy of it under
  25 # version control in the top-level directory of your project.  The
  26 # intent is that all customization can be done with a bootstrap.conf
  27 # file also maintained in your version control; gnulib comes with a
  28 # template build-aux/bootstrap.conf to get you started.
  29
  30 # Please report bugs or propose patches to bug-gnulib@gnu.org.
  31
  32 nl='
  33 '
  34
  35 # Ensure file names are sorted consistently across platforms.
  36 LC_ALL=C
  37 export LC_ALL
  38
  39 local_gl_dir=gl
  40
  41 # Temporary directory names.
  42 bt='._bootmp'
  43 bt_regex=`echo "$bt"| sed 's/\./[.]/g'`
  44 bt2=${bt}2
  45 me=$0
  46
  47 usage() {
  48   cat <<EOF
  49 Usage: $me [OPTION]...
  50 Bootstrap this package from the checked-out sources.
  51
  52 Options:
  53  --gnulib-srcdir=DIRNAME  specify the local directory where gnulib
  54                           sources reside.  Use this if you already
  55                           have gnulib sources on your machine, and
  56                           do not want to waste your bandwidth downloading
  57                           them again.  Defaults to \$GNULIB_SRCDIR
  58  --bootstrap-sync         if this bootstrap script is not identical to
  59                           the version in the local gnulib sources,
  60                           update this script, and then restart it with
  61                           /bin/sh or the shell \$CONFIG_SHELL
  62  --no-bootstrap-sync      do not check whether bootstrap is out of sync
  63  --copy                   copy files instead of creating symbolic links
  64  --force                  attempt to bootstrap even if the sources seem
  65                           not to have been checked out
  66  --no-git                 do not use git to update gnulib.  Requires that
  67                           --gnulib-srcdir point to a correct gnulib snapshot
  68  --skip-po                do not download po files
  69
  70 If the file $me.conf exists in the same directory as this script, its
  71 contents are read as shell variables to configure the bootstrap.
  72
  73 For build prerequisites, environment variables like \$AUTOCONF and \$AMTAR
  74 are honored.
  75
  76 Running without arguments will suffice in most cases.
  77 EOF
  78 }
  79
  80 # Configuration.
  81
  82 # Name of the Makefile.am
  83 gnulib_mk=gnulib.mk
  84
  85 # List of gnulib modules needed.
  86 gnulib_modules=
  87
  88 # Any gnulib files needed that are not in modules.
  89 gnulib_files=
  90
  91 # A function to be called to edit gnulib.mk right after it's created.
  92 # Override it via your own definition in bootstrap.conf.
  93 gnulib_mk_hook() { :; }
  94
  95 # A function to be called after everything else in this script.
  96 # Override it via your own definition in bootstrap.conf.
  97 bootstrap_epilogue() { :; }
  98
  99 # The command to download all .po files for a specified domain into
 100 # a specified directory.  Fill in the first %s is the domain name, and
 101 # the second with the destination directory.  Use rsync's -L and -r
 102 # options because the latest/%s directory and the .po files within are
 103 # all symlinks.
 104 po_download_command_format=\
 105 "rsync --delete --exclude '*.s1' -Lrtvz \
 106  'translationproject.org::tp/latest/%s/' '%s'"
 107
 108 extract_package_name='
 109   /^AC_INIT(/{
 110      /.*,.*,.*, */{
 111        s///
 112        s/[][]//g
 113        s/)$//
 114        p
 115        q
 116      }
 117      s/AC_INIT(\[*//
 118      s/]*,.*//
 119      s/^GNU //
 120      y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/
 121      s/[^A-Za-z0-9_]/-/g
 122      p
 123   }
 124 '
 125 package=`sed -n "$extract_package_name" configure.ac` || exit
 126 gnulib_name=lib$package
 127
 128 build_aux=build-aux
 129 source_base=lib
 130 m4_base=m4
 131 doc_base=doc
 132 tests_base=tests
 133
 134 # Extra files from gnulib, which override files from other sources.
 135 gnulib_extra_files="
 136         $build_aux/install-sh
 137         $build_aux/missing
 138         $build_aux/mdate-sh
 139         $build_aux/texinfo.tex
 140         $build_aux/depcomp
 141         $build_aux/config.guess
 142         $build_aux/config.sub
 143         doc/INSTALL
 144 "
 145
 146 # Additional gnulib-tool options to use.  Use "\newline" to break lines.
 147 gnulib_tool_option_extras=
 148
 149 # Other locale categories that need message catalogs.
 150 EXTRA_LOCALE_CATEGORIES=
 151
 152 # Additional xgettext options to use.  Use "\\\newline" to break lines.
 153 XGETTEXT_OPTIONS='\\\
 154  --flag=_:1:pass-c-format\\\
 155  --flag=N_:1:pass-c-format\\\
 156  --flag=error:3:c-format --flag=error_at_line:5:c-format\\\
 157 '
 158
 159 # Package bug report address and copyright holder for gettext files
 160 COPYRIGHT_HOLDER='Free Software Foundation, Inc.'
 161 MSGID_BUGS_ADDRESS=bug-$package@gnu.org
 162
 163 # Files we don't want to import.
 164 excluded_files=
 165
 166 # File that should exist in the top directory of a checked out hierarchy,
 167 # but not in a distribution tarball.
 168 checkout_only_file=README-hacking
 169
 170 # Whether to use copies instead of symlinks.
 171 copy=false
 172
 173 # Set this to '.cvsignore .gitignore' in bootstrap.conf if you want
 174 # those files to be generated in directories like lib/, m4/, and po/.
 175 # Or set it to 'auto' to make this script select which to use based
 176 # on which version control system (if any) is used in the source directory.
 177 vc_ignore=auto
 178
 179 # Set this to true in bootstrap.conf to enable --bootstrap-sync by
 180 # default.
 181 bootstrap_sync=false
 182
 183 # Use git to update gnulib sources
 184 use_git=true
 185
 186 # find_tool ENVVAR NAMES...
 187 # -------------------------
 188 # Search for a required program.  Use the value of ENVVAR, if set,
 189 # otherwise find the first of the NAMES that can be run (i.e.,
 190 # supports --version).  If found, set ENVVAR to the program name,
 191 # die otherwise.
 192 find_tool ()
 193 {
 194   find_tool_envvar=$1
 195   shift
 196   find_tool_names=$@
 197   eval "find_tool_res=\$$find_tool_envvar"
 198   if test x"$find_tool_res" = x; then
 199     for i
 200     do
 201       if ($i --version </dev/null) >/dev/null 2>&1; then
 202        find_tool_res=$i
 203        break
 204       fi
 205     done
 206   else
 207     find_tool_error_prefix="\$$find_tool_envvar: "
 208   fi
 209   if test x"$find_tool_res" = x; then
 210     echo >&2 "$me: one of these is required: $find_tool_names"
 211     exit 1
 212   fi
 213   ($find_tool_res --version </dev/null) >/dev/null 2>&1 || {
 214     echo >&2 "$me: ${find_tool_error_prefix}cannot run $find_tool_res --version"
 215     exit 1
 216   }
 217   eval "$find_tool_envvar=\$find_tool_res"
 218   eval "export $find_tool_envvar"
 219 }
 220
 221 # Find sha1sum, named gsha1sum on MacPorts, and shasum on MacOS 10.6.
 222 find_tool SHA1SUM sha1sum gsha1sum shasum
 223
 224 # Override the default configuration, if necessary.
 225 # Make sure that bootstrap.conf is sourced from the current directory
 226 # if we were invoked as "sh bootstrap".
 227 case "$0" in
 228   */*) test -r "$0.conf" && . "$0.conf" ;;
 229   *) test -r "$0.conf" && . ./"$0.conf" ;;
 230 esac
 231
 232
 233 if test "$vc_ignore" = auto; then
 234   vc_ignore=
 235   test -d .git && vc_ignore=.gitignore
 236   test -d CVS && vc_ignore="$vc_ignore .cvsignore"
 237 fi
 238
 239 # Translate configuration into internal form.
 240
 241 # Parse options.
 242
 243 for option
 244 do
 245   case $option in
 246   --help)
 247     usage
 248     exit;;
 249   --gnulib-srcdir=*)
 250     GNULIB_SRCDIR=`expr "X$option" : 'X--gnulib-srcdir=\(.*\)'`;;
 251   --skip-po)
 252     SKIP_PO=t;;
 253   --force)
 254     checkout_only_file=;;
 255   --copy)
 256     copy=true;;
 257   --bootstrap-sync)
 258     bootstrap_sync=true;;
 259   --no-bootstrap-sync)
 260     bootstrap_sync=false;;
 261   --no-git)
 262     use_git=false;;
 263   *)
 264     echo >&2 "$0: $option: unknown option"
 265     exit 1;;
 266   esac
 267 done
 268
 269 if $use_git || test -d "$GNULIB_SRCDIR"; then
 270   :
 271 else
 272   echo "$0: Error: --no-git requires --gnulib-srcdir" >&2
 273   exit 1
 274 fi
 275
 276 if test -n "$checkout_only_file" && test ! -r "$checkout_only_file"; then
 277   echo "$0: Bootstrapping from a non-checked-out distribution is risky." >&2
 278   exit 1
 279 fi
 280
 281 # If $STR is not already on a line by itself in $FILE, insert it,
 282 # sorting the new contents of the file and replacing $FILE with the result.
 283 insert_sorted_if_absent() {
 284   file=$1
 285   str=$2
 286   test -f $file || touch $file
 287   echo "$str" | sort -u - $file | cmp - $file > /dev/null \
 288     || echo "$str" | sort -u - $file -o $file \
 289     || exit 1
 290 }
 291
 292 # Adjust $PATTERN for $VC_IGNORE_FILE and insert it with
 293 # insert_sorted_if_absent.
 294 insert_vc_ignore() {
 295   vc_ignore_file="$1"
 296   pattern="$2"
 297   case $vc_ignore_file in
 298   *.gitignore)
 299     # A .gitignore entry that does not start with `/' applies
 300     # recursively to subdirectories, so prepend `/' to every
 301     # .gitignore entry.
 302     pattern=`echo "$pattern" | sed s,^,/,`;;
 303   esac
 304   insert_sorted_if_absent "$vc_ignore_file" "$pattern"
 305 }
 306
 307 # Die if there is no AC_CONFIG_AUX_DIR($build_aux) line in configure.ac.
 308 found_aux_dir=no
 309 grep '^[         ]*AC_CONFIG_AUX_DIR(\['"$build_aux"'\])' configure.ac \
 310     >/dev/null && found_aux_dir=yes
 311 grep '^[         ]*AC_CONFIG_AUX_DIR('"$build_aux"')' configure.ac \
 312     >/dev/null && found_aux_dir=yes
 313 if test $found_aux_dir = no; then
 314   echo "$0: expected line not found in configure.ac. Add the following:" >&2
 315   echo "  AC_CONFIG_AUX_DIR([$build_aux])" >&2
 316   exit 1
 317 fi
 318
 319 # If $build_aux doesn't exist, create it now, otherwise some bits
 320 # below will malfunction.  If creating it, also mark it as ignored.
 321 if test ! -d $build_aux; then
 322   mkdir $build_aux
 323   for dot_ig in x $vc_ignore; do
 324     test $dot_ig = x && continue
 325     insert_vc_ignore $dot_ig $build_aux
 326   done
 327 fi
 328
 329 # Note this deviates from the version comparison in automake
 330 # in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a
 331 # but this should suffice as we won't be specifying old
 332 # version formats or redundant trailing .0 in bootstrap.conf.
 333 # If we did want full compatibility then we should probably
 334 # use m4_version_compare from autoconf.
 335 sort_ver() { # sort -V is not generally available
 336   ver1="$1"
 337   ver2="$2"
 338
 339   # split on '.' and compare each component
 340   i=1
 341   while : ; do
 342     p1=$(echo "$ver1" | cut -d. -f$i)
 343     p2=$(echo "$ver2" | cut -d. -f$i)
 344     if [ ! "$p1" ]; then
 345       echo "$1 $2"
 346       break
 347     elif [ ! "$p2" ]; then
 348       echo "$2 $1"
 349       break
 350     elif [ ! "$p1" = "$p2" ]; then
 351       if [ "$p1" -gt "$p2" ] 2>/dev/null; then # numeric comparison
 352         echo "$2 $1"
 353       elif [ "$p2" -gt "$p1" ] 2>/dev/null; then # numeric comparison
 354         echo "$1 $2"
 355       else # numeric, then lexicographic comparison
 356         lp=$(printf "$p1\n$p2\n" | LANG=C sort -n | tail -n1)
 357         if [ "$lp" = "$p2" ]; then
 358           echo "$1 $2"
 359         else
 360           echo "$2 $1"
 361         fi
 362       fi
 363       break
 364     fi
 365     i=$(($i+1))
 366   done
 367 }
 368
 369 get_version() {
 370   app=$1
 371
 372   $app --version >/dev/null 2>&1 || return 1
 373
 374   $app --version 2>&1 |
 375   sed -n '# Move version to start of line.
 376           s/.*[v ]\([0-9]\)/\1/
 377
 378           # Skip lines that do not start with version.
 379           /^[0-9]/!d
 380
 381           # Remove characters after the version.
 382           s/[^.a-z0-9-].*//
 383
 384           # The first component must be digits only.
 385           s/^\([0-9]*\)[a-z-].*/\1/
 386
 387           #the following essentially does s/5.005/5.5/
 388           s/\.0*\([1-9]\)/.\1/g
 389           p
 390           q'
 391 }
 392
 393 check_versions() {
 394   ret=0
 395
 396   while read app req_ver; do
 397     # We only need libtoolize from the libtool package.
 398     if test "$app" = libtool; then
 399       app=libtoolize
 400     fi
 401     # Exempt git if --no-git is in effect.
 402     if test "$app" = git; then
 403       $use_git || continue
 404     fi
 405     # Honor $APP variables ($TAR, $AUTOCONF, etc.)
 406     appvar=`echo $app | tr '[a-z]-' '[A-Z]_'`
 407     test "$appvar" = TAR && appvar=AMTAR
 408     eval "app=\${$appvar-$app}"
 409     inst_ver=$(get_version $app)
 410     if [ ! "$inst_ver" ]; then
 411       echo "$me: Error: '$app' not found" >&2
 412       ret=1
 413     elif [ ! "$req_ver" = "-" ]; then
 414       latest_ver=$(sort_ver $req_ver $inst_ver | cut -d' ' -f2)
 415       if [ ! "$latest_ver" = "$inst_ver" ]; then
 416         echo "$me: Error: '$app' version == $inst_ver is too old" >&2
 417         echo "       '$app' version >= $req_ver is required" >&2
 418         ret=1
 419       fi
 420     fi
 421   done
 422
 423   return $ret
 424 }
 425
 426 print_versions() {
 427   echo "Program    Min_version"
 428   echo "----------------------"
 429   printf %s "$buildreq"
 430   echo "----------------------"
 431   # can't depend on column -t
 432 }
 433
 434 use_libtool=0
 435 # We'd like to use grep -E, to see if any of LT_INIT,
 436 # AC_PROG_LIBTOOL, AM_PROG_LIBTOOL is used in configure.ac,
 437 # but that's not portable enough (e.g., for Solaris).
 438 grep '^[         ]*A[CM]_PROG_LIBTOOL' configure.ac >/dev/null \
 439   && use_libtool=1
 440 grep '^[         ]*LT_INIT' configure.ac >/dev/null \
 441   && use_libtool=1
 442 if test $use_libtool = 1; then
 443   find_tool LIBTOOLIZE glibtoolize libtoolize
 444 fi
 445
 446 if ! printf "$buildreq" | check_versions; then
 447   echo >&2
 448   if test -f README-prereq; then
 449     echo "$0: See README-prereq for how to get the prerequisite programs" >&2
 450   else
 451     echo "$0: Please install the prerequisite programs" >&2
 452   fi
 453   exit 1
 454 fi
 455
 456 echo "$0: Bootstrapping from checked-out $package sources..."
 457
 458 # See if we can use gnulib's git-merge-changelog merge driver.
 459 if test -d .git && (git --version) >/dev/null 2>/dev/null ; then
 460   if git config merge.merge-changelog.driver >/dev/null ; then
 461     :
 462   elif (git-merge-changelog --version) >/dev/null 2>/dev/null ; then
 463     echo "$0: initializing git-merge-changelog driver"
 464     git config merge.merge-changelog.name 'GNU-style ChangeLog merge driver'
 465     git config merge.merge-changelog.driver 'git-merge-changelog %O %A %B'
 466   else
 467     echo "$0: consider installing git-merge-changelog from gnulib"
 468   fi
 469 fi
 470
 471
 472 cleanup_gnulib() {
 473   status=$?
 474   rm -fr "$gnulib_path"
 475   exit $status
 476 }
 477
 478 git_modules_config () {
 479   test -f .gitmodules && git config --file .gitmodules "$@"
 480 }
 481
 482 gnulib_path=`git_modules_config submodule.gnulib.path`
 483 test -z "$gnulib_path" && gnulib_path=gnulib
 484
 485 # Get gnulib files.
 486
 487 case ${GNULIB_SRCDIR--} in
 488 -)
 489   if git_modules_config submodule.gnulib.url >/dev/null; then
 490     echo "$0: getting gnulib files..."
 491     git submodule init || exit $?
 492     git submodule update || exit $?
 493
 494   elif [ ! -d "$gnulib_path" ]; then
 495     echo "$0: getting gnulib files..."
 496
 497     trap cleanup_gnulib 1 2 13 15
 498
 499     shallow=
 500     git clone -h 2>&1 | grep -- --depth > /dev/null && shallow='--depth 2'
 501     git clone $shallow git://git.sv.gnu.org/gnulib "$gnulib_path" ||
 502       cleanup_gnulib
 503
 504     trap - 1 2 13 15
 505   fi
 506   GNULIB_SRCDIR=$gnulib_path
 507   ;;
 508 *)
 509   # Use GNULIB_SRCDIR as a reference.
 510   if test -d "$GNULIB_SRCDIR"/.git && \
 511         git_modules_config submodule.gnulib.url >/dev/null; then
 512     echo "$0: getting gnulib files..."
 513     if git submodule -h|grep -- --reference > /dev/null; then
 514       # Prefer the one-liner available in git 1.6.4 or newer.
 515       git submodule update --init --reference "$GNULIB_SRCDIR" \
 516         "$gnulib_path" || exit $?
 517     else
 518       # This fallback allows at least git 1.5.5.
 519       if test -f "$gnulib_path"/gnulib-tool; then
 520         # Since file already exists, assume submodule init already complete.
 521         git submodule update || exit $?
 522       else
 523         # Older git can't clone into an empty directory.
 524         rmdir "$gnulib_path" 2>/dev/null
 525         git clone --reference "$GNULIB_SRCDIR" \
 526           "$(git_modules_config submodule.gnulib.url)" "$gnulib_path" \
 527           && git submodule init && git submodule update \
 528           || exit $?
 529       fi
 530     fi
 531     GNULIB_SRCDIR=$gnulib_path
 532   fi
 533   ;;
 534 esac
 535
 536 if $bootstrap_sync; then
 537   cmp -s "$0" "$GNULIB_SRCDIR/build-aux/bootstrap" || {
 538     echo "$0: updating bootstrap and restarting..."
 539     exec sh -c \
 540       'cp "$1" "$2" && shift && exec "${CONFIG_SHELL-/bin/sh}" "$@"' \
 541       -- "$GNULIB_SRCDIR/build-aux/bootstrap" \
 542       "$0" "$@" --no-bootstrap-sync
 543   }
 544 fi
 545
 546 gnulib_tool=$GNULIB_SRCDIR/gnulib-tool
 547 <$gnulib_tool || exit
 548
 549 # Get translations.
 550
 551 download_po_files() {
 552   subdir=$1
 553   domain=$2
 554   echo "$me: getting translations into $subdir for $domain..."
 555   cmd=`printf "$po_download_command_format" "$domain" "$subdir"`
 556   eval "$cmd"
 557 }
 558
 559 # Mirror .po files to $po_dir/.reference and copy only the new
 560 # or modified ones into $po_dir.  Also update $po_dir/LINGUAS.
 561 # Note po files that exist locally only are left in $po_dir but will
 562 # not be included in LINGUAS and hence will not be distributed.
 563 update_po_files() {
 564   # Directory containing primary .po files.
 565   # Overwrite them only when we're sure a .po file is new.
 566   po_dir=$1
 567   domain=$2
 568
 569   # Mirror *.po files into this dir.
 570   # Usually contains *.s1 checksum files.
 571   ref_po_dir="$po_dir/.reference"
 572
 573   test -d $ref_po_dir || mkdir $ref_po_dir || return
 574   download_po_files $ref_po_dir $domain \
 575     && ls "$ref_po_dir"/*.po 2>/dev/null |
 576       sed 's|.*/||; s|\.po$||' > "$po_dir/LINGUAS" || return
 577
 578   langs=`cd $ref_po_dir && echo *.po|sed 's/\.po//g'`
 579   test "$langs" = '*' && langs=x
 580   for po in $langs; do
 581     case $po in x) continue;; esac
 582     new_po="$ref_po_dir/$po.po"
 583     cksum_file="$ref_po_dir/$po.s1"
 584     if ! test -f "$cksum_file" ||
 585         ! test -f "$po_dir/$po.po" ||
 586         ! $SHA1SUM -c --status "$cksum_file" \
 587             < "$new_po" > /dev/null; then
 588       echo "$me: updated $po_dir/$po.po..."
 589       cp "$new_po" "$po_dir/$po.po" \
 590           && $SHA1SUM < "$new_po" > "$cksum_file"
 591     fi
 592   done
 593 }
 594
 595 case $SKIP_PO in
 596 '')
 597   if test -d po; then
 598     update_po_files po $package || exit
 599   fi
 600
 601   if test -d runtime-po; then
 602     update_po_files runtime-po $package-runtime || exit
 603   fi;;
 604 esac
 605
 606 symlink_to_dir()
 607 {
 608   src=$1/$2
 609   dst=${3-$2}
 610
 611   test -f "$src" && {
 612
 613     # If the destination directory doesn't exist, create it.
 614     # This is required at least for "lib/uniwidth/cjk.h".
 615     dst_dir=`dirname "$dst"`
 616     if ! test -d "$dst_dir"; then
 617       mkdir -p "$dst_dir"
 618
 619       # If we've just created a directory like lib/uniwidth,
 620       # tell version control system(s) it's ignorable.
 621       # FIXME: for now, this does only one level
 622       parent=`dirname "$dst_dir"`
 623       for dot_ig in x $vc_ignore; do
 624         test $dot_ig = x && continue
 625         ig=$parent/$dot_ig
 626         insert_vc_ignore $ig `echo "$dst_dir"|sed 's,.*/,,'`
 627       done
 628     fi
 629
 630     if $copy; then
 631       {
 632         test ! -h "$dst" || {
 633           echo "$me: rm -f $dst" &&
 634           rm -f "$dst"
 635         }
 636       } &&
 637       test -f "$dst" &&
 638       cmp -s "$src" "$dst" || {
 639         echo "$me: cp -fp $src $dst" &&
 640         cp -fp "$src" "$dst"
 641       }
 642     else
 643       test -h "$dst" &&
 644       src_ls=`ls -diL "$src" 2>/dev/null` && set $src_ls && src_i=$1 &&
 645       dst_ls=`ls -diL "$dst" 2>/dev/null` && set $dst_ls && dst_i=$1 &&
 646       test "$src_i" = "$dst_i" || {
 647         dot_dots=
 648         case $src in
 649         /*) ;;
 650         *)
 651           case /$dst/ in
 652           *//* | */../* | */./* | /*/*/*/*/*/)
 653              echo >&2 "$me: invalid symlink calculation: $src -> $dst"
 654              exit 1;;
 655           /*/*/*/*/)    dot_dots=../../../;;
 656           /*/*/*/)      dot_dots=../../;;
 657           /*/*/)        dot_dots=../;;
 658           esac;;
 659         esac
 660
 661         echo "$me: ln -fs $dot_dots$src $dst" &&
 662         ln -fs "$dot_dots$src" "$dst"
 663       }
 664     fi
 665   }
 666 }
 667
 668 cp_mark_as_generated()
 669 {
 670   cp_src=$1
 671   cp_dst=$2
 672
 673   if cmp -s "$cp_src" "$GNULIB_SRCDIR/$cp_dst"; then
 674     symlink_to_dir "$GNULIB_SRCDIR" "$cp_dst"
 675   elif cmp -s "$cp_src" "$local_gl_dir/$cp_dst"; then
 676     symlink_to_dir $local_gl_dir "$cp_dst"
 677   else
 678     case $cp_dst in
 679       *.[ch])             c1='/* '; c2=' */';;
 680       *.texi)             c1='@c '; c2=     ;;
 681       *.m4|*/Make*|Make*) c1='# ' ; c2=     ;;
 682       *)                  c1=     ; c2=     ;;
 683     esac
 684
 685     # If the destination directory doesn't exist, create it.
 686     # This is required at least for "lib/uniwidth/cjk.h".
 687     dst_dir=`dirname "$cp_dst"`
 688     test -d "$dst_dir" || mkdir -p "$dst_dir"
 689
 690     if test -z "$c1"; then
 691       cmp -s "$cp_src" "$cp_dst" || {
 692         # Copy the file first to get proper permissions if it
 693         # doesn't already exist.  Then overwrite the copy.
 694         echo "$me: cp -f $cp_src $cp_dst" &&
 695         rm -f "$cp_dst" &&
 696         cp "$cp_src" "$cp_dst-t" &&
 697         sed "s!$bt_regex/!!g" "$cp_src" > "$cp_dst-t" &&
 698         mv -f "$cp_dst-t" "$cp_dst"
 699       }
 700     else
 701       # Copy the file first to get proper permissions if it
 702       # doesn't already exist.  Then overwrite the copy.
 703       cp "$cp_src" "$cp_dst-t" &&
 704       (
 705         echo "$c1-*- buffer-read-only: t -*- vi: set ro:$c2" &&
 706         echo "${c1}DO NOT EDIT! GENERATED AUTOMATICALLY!$c2" &&
 707         sed "s!$bt_regex/!!g" "$cp_src"
 708       ) > $cp_dst-t &&
 709       if cmp -s "$cp_dst-t" "$cp_dst"; then
 710         rm -f "$cp_dst-t"
 711       else
 712         echo "$me: cp $cp_src $cp_dst # with edits" &&
 713         mv -f "$cp_dst-t" "$cp_dst"
 714       fi
 715     fi
 716   fi
 717 }
 718
 719 version_controlled_file() {
 720   dir=$1
 721   file=$2
 722   found=no
 723   if test -d CVS; then
 724     grep -F "/$file/" $dir/CVS/Entries 2>/dev/null |
 725              grep '^/[^/]*/[0-9]' > /dev/null && found=yes
 726   elif test -d .git; then
 727     git rm -n "$dir/$file" > /dev/null 2>&1 && found=yes
 728   elif test -d .svn; then
 729     svn log -r HEAD "$dir/$file" > /dev/null 2>&1 && found=yes
 730   else
 731     echo "$me: no version control for $dir/$file?" >&2
 732   fi
 733   test $found = yes
 734 }
 735
 736 slurp() {
 737   for dir in . `(cd $1 && find * -type d -print)`; do
 738     copied=
 739     sep=
 740     for file in `ls -a $1/$dir`; do
 741       case $file in
 742       .|..) continue;;
 743       # FIXME: should all file names starting with "." be ignored?
 744       .*) continue;;
 745       esac
 746       test -d $1/$dir/$file && continue
 747       for excluded_file in $excluded_files; do
 748         test "$dir/$file" = "$excluded_file" && continue 2
 749       done
 750       if test $file = Makefile.am && test "X$gnulib_mk" != XMakefile.am; then
 751         copied=$copied${sep}$gnulib_mk; sep=$nl
 752         remove_intl='/^[^#].*\/intl/s/^/#/;'"s!$bt_regex/!!g"
 753         sed "$remove_intl" $1/$dir/$file |
 754         cmp - $dir/$gnulib_mk > /dev/null || {
 755           echo "$me: Copying $1/$dir/$file to $dir/$gnulib_mk ..." &&
 756           rm -f $dir/$gnulib_mk &&
 757           sed "$remove_intl" $1/$dir/$file >$dir/$gnulib_mk &&
 758           gnulib_mk_hook $dir/$gnulib_mk
 759         }
 760       elif { test "${2+set}" = set && test -r $2/$dir/$file; } ||
 761            version_controlled_file $dir $file; then
 762         echo "$me: $dir/$file overrides $1/$dir/$file"
 763       else
 764         copied=$copied$sep$file; sep=$nl
 765         if test $file = gettext.m4; then
 766           echo "$me: patching m4/gettext.m4 to remove need for intl/* ..."
 767           rm -f $dir/$file
 768           sed '
 769             /^AC_DEFUN(\[AM_INTL_SUBDIR],/,/^]/c\
 770               AC_DEFUN([AM_INTL_SUBDIR], [])
 771             /^AC_DEFUN(\[gt_INTL_SUBDIR_CORE],/,/^]/c\
 772               AC_DEFUN([gt_INTL_SUBDIR_CORE], [])
 773             $a\
 774               AC_DEFUN([gl_LOCK_EARLY], [])
 775           ' $1/$dir/$file >$dir/$file
 776         else
 777           cp_mark_as_generated $1/$dir/$file $dir/$file
 778         fi
 779       fi || exit
 780     done
 781
 782     for dot_ig in x $vc_ignore; do
 783       test $dot_ig = x && continue
 784       ig=$dir/$dot_ig
 785       if test -n "$copied"; then
 786         insert_vc_ignore $ig "$copied"
 787         # If an ignored file name ends with .in.h, then also add
 788         # the name with just ".h".  Many gnulib headers are generated,
 789         # e.g., stdint.in.h -> stdint.h, dirent.in.h ->..., etc.
 790         # Likewise for .gperf -> .h, .y -> .c, and .sin -> .sed
 791         f=`echo "$copied" |
 792           sed '
 793             s/\.in\.h$/.h/
 794             s/\.sin$/.sed/
 795             s/\.y$/.c/
 796             s/\.gperf$/.h/
 797           '
 798         `
 799         insert_vc_ignore $ig "$f"
 800
 801         # For files like sys_stat.in.h and sys_time.in.h, record as
 802         # ignorable the directory we might eventually create: sys/.
 803         f=`echo "$copied"|sed 's/sys_.*\.in\.h$/sys/'`
 804         insert_vc_ignore $ig "$f"
 805       fi
 806     done
 807   done
 808 }
 809
 810
 811 # Create boot temporary directories to import from gnulib and gettext.
 812 rm -fr $bt $bt2 &&
 813 mkdir $bt $bt2 || exit
 814
 815 # Import from gnulib.
 816
 817 gnulib_tool_options="\
 818  --import\
 819  --no-changelog\
 820  --aux-dir $bt/$build_aux\
 821  --doc-base $bt/$doc_base\
 822  --lib $gnulib_name\
 823  --m4-base $bt/$m4_base/\
 824  --source-base $bt/$source_base/\
 825  --tests-base $bt/$tests_base\
 826  --local-dir $local_gl_dir\
 827  $gnulib_tool_option_extras\
 828 "
 829 if test $use_libtool = 1; then
 830   case "$gnulib_tool_options " in
 831     *' --libtool '*) ;;
 832     *) gnulib_tool_options="$gnulib_tool_options --libtool" ;;
 833   esac
 834 fi
 835 echo "$0: $gnulib_tool $gnulib_tool_options --import ..."
 836 $gnulib_tool $gnulib_tool_options --import $gnulib_modules &&
 837 slurp $bt || exit
 838
 839 for file in $gnulib_files; do
 840   symlink_to_dir "$GNULIB_SRCDIR" $file || exit
 841 done
 842
 843
 844 # Import from gettext.
 845 with_gettext=yes
 846 grep '^[         ]*AM_GNU_GETTEXT_VERSION(' configure.ac >/dev/null || \
 847     with_gettext=no
 848
 849 if test $with_gettext = yes; then
 850   echo "$0: (cd $bt2; ${AUTOPOINT-autopoint}) ..."
 851   cp configure.ac $bt2 &&
 852   (cd $bt2 && ${AUTOPOINT-autopoint} && rm configure.ac) &&
 853   slurp $bt2 $bt || exit
 854 fi
 855 rm -fr $bt $bt2 || exit
 856
 857 # Remove any dangling symlink matching "*.m4" or "*.[ch]" in some
 858 # gnulib-populated directories.  Such .m4 files would cause aclocal to fail.
 859 # The following requires GNU find 4.2.3 or newer.  Considering the usual
 860 # portability constraints of this script, that may seem a very demanding
 861 # requirement, but it should be ok.  Ignore any failure, which is fine,
 862 # since this is only a convenience to help developers avoid the relatively
 863 # unusual case in which a symlinked-to .m4 file is git-removed from gnulib
 864 # between successive runs of this script.
 865 find "$m4_base" "$source_base" \
 866   -depth \( -name '*.m4' -o -name '*.[ch]' \) \
 867   -type l -xtype l -delete > /dev/null 2>&1
 868
 869 # Reconfigure, getting other files.
 870
 871 # Skip autoheader if it's not needed.
 872 grep -E '^[      ]*AC_CONFIG_HEADERS?\>' configure.ac >/dev/null ||
 873   AUTOHEADER=true
 874
 875 for command in \
 876   libtool \
 877   "${ACLOCAL-aclocal} --force -I '$m4_base' $ACLOCAL_FLAGS" \
 878   "${AUTOCONF-autoconf} --force" \
 879   "${AUTOHEADER-autoheader} --force" \
 880   "${AUTOMAKE-automake} --add-missing --copy --force-missing"
 881 do
 882   if test "$command" = libtool; then
 883     test $use_libtool = 0 \
 884       && continue
 885     command="${LIBTOOLIZE-libtoolize} -c -f"
 886   fi
 887   echo "$0: $command ..."
 888   eval "$command" || exit
 889 done
 890
 891
 892 # Get some extra files from gnulib, overriding existing files.
 893 for file in $gnulib_extra_files; do
 894   case $file in
 895   */INSTALL) dst=INSTALL;;
 896   build-aux/*) dst=$build_aux/`expr "$file" : 'build-aux/\(.*\)'`;;
 897   *) dst=$file;;
 898   esac
 899   symlink_to_dir "$GNULIB_SRCDIR" $file $dst || exit
 900 done
 901
 902 if test $with_gettext = yes; then
 903   # Create gettext configuration.
 904   echo "$0: Creating po/Makevars from po/Makevars.template ..."
 905   rm -f po/Makevars
 906   sed '
 907     /^EXTRA_LOCALE_CATEGORIES *=/s/=.*/= '"$EXTRA_LOCALE_CATEGORIES"'/
 908     /^COPYRIGHT_HOLDER *=/s/=.*/= '"$COPYRIGHT_HOLDER"'/
 909     /^MSGID_BUGS_ADDRESS *=/s|=.*|= '"$MSGID_BUGS_ADDRESS"'|
 910     /^XGETTEXT_OPTIONS *=/{
 911       s/$/ \\/
 912       a\
 913           '"$XGETTEXT_OPTIONS"' $${end_of_xgettext_options+}
 914     }
 915   ' po/Makevars.template >po/Makevars || exit 1
 916
 917   if test -d runtime-po; then
 918     # Similarly for runtime-po/Makevars, but not quite the same.
 919     rm -f runtime-po/Makevars
 920     sed '
 921       /^DOMAIN *=.*/s/=.*/= '"$package"'-runtime/
 922       /^subdir *=.*/s/=.*/= runtime-po/
 923       /^MSGID_BUGS_ADDRESS *=/s/=.*/= bug-'"$package"'@gnu.org/
 924       /^XGETTEXT_OPTIONS *=/{
 925         s/$/ \\/
 926         a\
 927             '"$XGETTEXT_OPTIONS_RUNTIME"' $${end_of_xgettext_options+}
 928       }
 929     ' po/Makevars.template >runtime-po/Makevars || exit 1
 930
 931     # Copy identical files from po to runtime-po.
 932     (cd po && cp -p Makefile.in.in *-quot *.header *.sed *.sin ../runtime-po)
 933   fi
 934 fi
 935
 936 bootstrap_epilogue
 937
 938 echo "$0: done.  Now you can run './configure'."
 939
 940 # Local variables:
 941 # eval: (add-hook 'write-file-hooks 'time-stamp)
 942 # time-stamp-start: "scriptversion="
 943 # time-stamp-format: "%:y-%02m-%02d.%02H"
 944 # time-stamp-time-zone: "UTC"
 945 # time-stamp-end: "; # UTC"
 946 # End: