bootstrap

   1 #! /bin/sh
   2 # Print a version string.
   3 scriptversion=2012-04-16.16; # UTC
   4
   5 # Bootstrap this package from checked-out sources.
   6
   7 # Copyright (C) 2003-2012 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 me=$0
  42
  43 usage() {
  44   cat <<EOF
  45 Usage: $me [OPTION]...
  46 Bootstrap this package from the checked-out sources.
  47
  48 Options:
  49  --gnulib-srcdir=DIRNAME  specify the local directory where gnulib
  50                           sources reside.  Use this if you already
  51                           have gnulib sources on your machine, and
  52                           do not want to waste your bandwidth downloading
  53                           them again.  Defaults to \$GNULIB_SRCDIR
  54  --bootstrap-sync         if this bootstrap script is not identical to
  55                           the version in the local gnulib sources,
  56                           update this script, and then restart it with
  57                           /bin/sh or the shell \$CONFIG_SHELL
  58  --no-bootstrap-sync      do not check whether bootstrap is out of sync
  59  --copy                   copy files instead of creating symbolic links
  60  --force                  attempt to bootstrap even if the sources seem
  61                           not to have been checked out
  62  --no-git                 do not use git to update gnulib.  Requires that
  63                           --gnulib-srcdir point to a correct gnulib snapshot
  64  --skip-po                do not download po files
  65
  66 If the file $me.conf exists in the same directory as this script, its
  67 contents are read as shell variables to configure the bootstrap.
  68
  69 For build prerequisites, environment variables like \$AUTOCONF and \$AMTAR
  70 are honored.
  71
  72 Running without arguments will suffice in most cases.
  73 EOF
  74 }
  75
  76 # Configuration.
  77
  78 # Name of the Makefile.am
  79 gnulib_mk=gnulib.mk
  80
  81 # List of gnulib modules needed.
  82 gnulib_modules=
  83
  84 # Any gnulib files needed that are not in modules.
  85 gnulib_files=
  86
  87 : ${AUTOPOINT=autopoint}
  88 : ${AUTORECONF=autoreconf}
  89
  90 # A function to be called right after gnulib-tool is run.
  91 # Override it via your own definition in bootstrap.conf.
  92 bootstrap_post_import_hook() { :; }
  93
  94 # A function to be called after everything else in this script.
  95 # Override it via your own definition in bootstrap.conf.
  96 bootstrap_epilogue() { :; }
  97
  98 # The command to download all .po files for a specified domain into
  99 # a specified directory.  Fill in the first %s is the domain name, and
 100 # the second with the destination directory.  Use rsync's -L and -r
 101 # options because the latest/%s directory and the .po files within are
 102 # all symlinks.
 103 po_download_command_format=\
 104 "rsync --delete --exclude '*.s1' -Lrtvz \
 105  'translationproject.org::tp/latest/%s/' '%s'"
 106
 107 # Fallback for downloading .po files (if rsync fails).
 108 po_download_command_format2=\
 109 "wget --mirror -nd -q -np -A.po -P '%s' \
 110  http://translationproject.org/latest/%s/"
 111
 112 extract_package_name='
 113   /^AC_INIT(/{
 114      /.*,.*,.*, */{
 115        s///
 116        s/[][]//g
 117        s/)$//
 118        p
 119        q
 120      }
 121      s/AC_INIT(\[*//
 122      s/]*,.*//
 123      s/^GNU //
 124      y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/
 125      s/[^A-Za-z0-9_]/-/g
 126      p
 127   }
 128 '
 129 package=`sed -n "$extract_package_name" configure.ac` || exit
 130 gnulib_name=lib$package
 131
 132 build_aux=build-aux
 133 source_base=lib
 134 m4_base=m4
 135 doc_base=doc
 136 tests_base=tests
 137 gnulib_extra_files=''
 138
 139 # Additional gnulib-tool options to use.  Use "\newline" to break lines.
 140 gnulib_tool_option_extras=
 141
 142 # Other locale categories that need message catalogs.
 143 EXTRA_LOCALE_CATEGORIES=
 144
 145 # Additional xgettext options to use.  Use "\\\newline" to break lines.
 146 XGETTEXT_OPTIONS='\\\
 147  --flag=_:1:pass-c-format\\\
 148  --flag=N_:1:pass-c-format\\\
 149  --flag=error:3:c-format --flag=error_at_line:5:c-format\\\
 150 '
 151
 152 # Package bug report address and copyright holder for gettext files
 153 COPYRIGHT_HOLDER='Free Software Foundation, Inc.'
 154 MSGID_BUGS_ADDRESS=bug-$package@gnu.org
 155
 156 # Files we don't want to import.
 157 excluded_files=
 158
 159 # File that should exist in the top directory of a checked out hierarchy,
 160 # but not in a distribution tarball.
 161 checkout_only_file=README-hacking
 162
 163 # Whether to use copies instead of symlinks.
 164 copy=false
 165
 166 # Set this to '.cvsignore .gitignore' in bootstrap.conf if you want
 167 # those files to be generated in directories like lib/, m4/, and po/.
 168 # Or set it to 'auto' to make this script select which to use based
 169 # on which version control system (if any) is used in the source directory.
 170 vc_ignore=auto
 171
 172 # Set this to true in bootstrap.conf to enable --bootstrap-sync by
 173 # default.
 174 bootstrap_sync=false
 175
 176 # Use git to update gnulib sources
 177 use_git=true
 178
 179 # find_tool ENVVAR NAMES...
 180 # -------------------------
 181 # Search for a required program.  Use the value of ENVVAR, if set,
 182 # otherwise find the first of the NAMES that can be run (i.e.,
 183 # supports --version).  If found, set ENVVAR to the program name,
 184 # die otherwise.
 185 find_tool ()
 186 {
 187   find_tool_envvar=$1
 188   shift
 189   find_tool_names=$@
 190   eval "find_tool_res=\$$find_tool_envvar"
 191   if test x"$find_tool_res" = x; then
 192     for i
 193     do
 194       if ($i --version </dev/null) >/dev/null 2>&1; then
 195        find_tool_res=$i
 196        break
 197       fi
 198     done
 199   else
 200     find_tool_error_prefix="\$$find_tool_envvar: "
 201   fi
 202   if test x"$find_tool_res" = x; then
 203     echo >&2 "$me: one of these is required: $find_tool_names"
 204     exit 1
 205   fi
 206   ($find_tool_res --version </dev/null) >/dev/null 2>&1 || {
 207     echo >&2 "$me: ${find_tool_error_prefix}cannot run $find_tool_res --version"
 208     exit 1
 209   }
 210   eval "$find_tool_envvar=\$find_tool_res"
 211   eval "export $find_tool_envvar"
 212 }
 213
 214 # Find sha1sum, named gsha1sum on MacPorts, and shasum on MacOS 10.6.
 215 find_tool SHA1SUM sha1sum gsha1sum shasum
 216
 217 # Override the default configuration, if necessary.
 218 # Make sure that bootstrap.conf is sourced from the current directory
 219 # if we were invoked as "sh bootstrap".
 220 case "$0" in
 221   */*) test -r "$0.conf" && . "$0.conf" ;;
 222   *) test -r "$0.conf" && . ./"$0.conf" ;;
 223 esac
 224
 225 # Extra files from gnulib, which override files from other sources.
 226 test -z "${gnulib_extra_files}" && \
 227   gnulib_extra_files="
 228         $build_aux/install-sh
 229         $build_aux/missing
 230         $build_aux/mdate-sh
 231         $build_aux/texinfo.tex
 232         $build_aux/depcomp
 233         $build_aux/config.guess
 234         $build_aux/config.sub
 235         doc/INSTALL
 236 "
 237
 238 if test "$vc_ignore" = auto; then
 239   vc_ignore=
 240   test -d .git && vc_ignore=.gitignore
 241   test -d CVS && vc_ignore="$vc_ignore .cvsignore"
 242 fi
 243
 244 # Translate configuration into internal form.
 245
 246 # Parse options.
 247
 248 for option
 249 do
 250   case $option in
 251   --help)
 252     usage
 253     exit;;
 254   --gnulib-srcdir=*)
 255     GNULIB_SRCDIR=`expr "X$option" : 'X--gnulib-srcdir=\(.*\)'`;;
 256   --skip-po)
 257     SKIP_PO=t;;
 258   --force)
 259     checkout_only_file=;;
 260   --copy)
 261     copy=true;;
 262   --bootstrap-sync)
 263     bootstrap_sync=true;;
 264   --no-bootstrap-sync)
 265     bootstrap_sync=false;;
 266   --no-git)
 267     use_git=false;;
 268   *)
 269     echo >&2 "$0: $option: unknown option"
 270     exit 1;;
 271   esac
 272 done
 273
 274 if $use_git || test -d "$GNULIB_SRCDIR"; then
 275   :
 276 else
 277   echo "$0: Error: --no-git requires --gnulib-srcdir" >&2
 278   exit 1
 279 fi
 280
 281 if test -n "$checkout_only_file" && test ! -r "$checkout_only_file"; then
 282   echo "$0: Bootstrapping from a non-checked-out distribution is risky." >&2
 283   exit 1
 284 fi
 285
 286 # Ensure that lines starting with ! sort last, per gitignore conventions
 287 # for whitelisting exceptions after a more generic blacklist pattern.
 288 sort_patterns() {
 289   sort -u "$@" | sed '/^!/ {
 290     H
 291     d
 292   }
 293   $ {
 294     P
 295     x
 296     s/^\n//
 297   }' | sed '/^$/d'
 298 }
 299
 300 # If $STR is not already on a line by itself in $FILE, insert it,
 301 # sorting the new contents of the file and replacing $FILE with the result.
 302 insert_sorted_if_absent() {
 303   file=$1
 304   str=$2
 305   test -f $file || touch $file
 306   echo "$str" | sort_patterns - $file | cmp - $file > /dev/null \
 307     || { echo "$str" | sort_patterns - $file > $file.bak \
 308       && mv $file.bak $file; } \
 309     || exit 1
 310 }
 311
 312 # Adjust $PATTERN for $VC_IGNORE_FILE and insert it with
 313 # insert_sorted_if_absent.
 314 insert_vc_ignore() {
 315   vc_ignore_file="$1"
 316   pattern="$2"
 317   case $vc_ignore_file in
 318   *.gitignore)
 319     # A .gitignore entry that does not start with '/' applies
 320     # recursively to subdirectories, so prepend '/' to every
 321     # .gitignore entry.
 322     pattern=`echo "$pattern" | sed s,^,/,`;;
 323   esac
 324   insert_sorted_if_absent "$vc_ignore_file" "$pattern"
 325 }
 326
 327 # Die if there is no AC_CONFIG_AUX_DIR($build_aux) line in configure.ac.
 328 found_aux_dir=no
 329 grep '^[         ]*AC_CONFIG_AUX_DIR(\['"$build_aux"'\])' configure.ac \
 330     >/dev/null && found_aux_dir=yes
 331 grep '^[         ]*AC_CONFIG_AUX_DIR('"$build_aux"')' configure.ac \
 332     >/dev/null && found_aux_dir=yes
 333 if test $found_aux_dir = no; then
 334   echo "$0: expected line not found in configure.ac. Add the following:" >&2
 335   echo "  AC_CONFIG_AUX_DIR([$build_aux])" >&2
 336   exit 1
 337 fi
 338
 339 # If $build_aux doesn't exist, create it now, otherwise some bits
 340 # below will malfunction.  If creating it, also mark it as ignored.
 341 if test ! -d $build_aux; then
 342   mkdir $build_aux
 343   for dot_ig in x $vc_ignore; do
 344     test $dot_ig = x && continue
 345     insert_vc_ignore $dot_ig $build_aux
 346   done
 347 fi
 348
 349 # Note this deviates from the version comparison in automake
 350 # in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a
 351 # but this should suffice as we won't be specifying old
 352 # version formats or redundant trailing .0 in bootstrap.conf.
 353 # If we did want full compatibility then we should probably
 354 # use m4_version_compare from autoconf.
 355 sort_ver() { # sort -V is not generally available
 356   ver1="$1"
 357   ver2="$2"
 358
 359   # split on '.' and compare each component
 360   i=1
 361   while : ; do
 362     p1=$(echo "$ver1" | cut -d. -f$i)
 363     p2=$(echo "$ver2" | cut -d. -f$i)
 364     if [ ! "$p1" ]; then
 365       echo "$1 $2"
 366       break
 367     elif [ ! "$p2" ]; then
 368       echo "$2 $1"
 369       break
 370     elif [ ! "$p1" = "$p2" ]; then
 371       if [ "$p1" -gt "$p2" ] 2>/dev/null; then # numeric comparison
 372         echo "$2 $1"
 373       elif [ "$p2" -gt "$p1" ] 2>/dev/null; then # numeric comparison
 374         echo "$1 $2"
 375       else # numeric, then lexicographic comparison
 376         lp=$(printf "$p1\n$p2\n" | LANG=C sort -n | tail -n1)
 377         if [ "$lp" = "$p2" ]; then
 378           echo "$1 $2"
 379         else
 380           echo "$2 $1"
 381         fi
 382       fi
 383       break
 384     fi
 385     i=$(($i+1))
 386   done
 387 }
 388
 389 get_version() {
 390   app=$1
 391
 392   $app --version >/dev/null 2>&1 || return 1
 393
 394   $app --version 2>&1 |
 395   sed -n '# Move version to start of line.
 396           s/.*[v ]\([0-9]\)/\1/
 397
 398           # Skip lines that do not start with version.
 399           /^[0-9]/!d
 400
 401           # Remove characters after the version.
 402           s/[^.a-z0-9-].*//
 403
 404           # The first component must be digits only.
 405           s/^\([0-9]*\)[a-z-].*/\1/
 406
 407           #the following essentially does s/5.005/5.5/
 408           s/\.0*\([1-9]\)/.\1/g
 409           p
 410           q'
 411 }
 412
 413 check_versions() {
 414   ret=0
 415
 416   while read app req_ver; do
 417     # We only need libtoolize from the libtool package.
 418     if test "$app" = libtool; then
 419       app=libtoolize
 420     fi
 421     # Exempt git if --no-git is in effect.
 422     if test "$app" = git; then
 423       $use_git || continue
 424     fi
 425     # Honor $APP variables ($TAR, $AUTOCONF, etc.)
 426     appvar=`echo $app | LC_ALL=C tr '[a-z]-' '[A-Z]_'`
 427     test "$appvar" = TAR && appvar=AMTAR
 428     case $appvar in
 429         GZIP) ;; # Do not use $GZIP:  it contains gzip options.
 430         *) eval "app=\${$appvar-$app}" ;;
 431     esac
 432     if [ "$req_ver" = "-" ]; then
 433       # Merely require app to exist; not all prereq apps are well-behaved
 434       # so we have to rely on $? rather than get_version.
 435       $app --version >/dev/null 2>&1
 436       if [ 126 -le $? ]; then
 437         echo "$me: Error: '$app' not found" >&2
 438         ret=1
 439       fi
 440     else
 441       # Require app to produce a new enough version string.
 442       inst_ver=$(get_version $app)
 443       if [ ! "$inst_ver" ]; then
 444         echo "$me: Error: '$app' not found" >&2
 445         ret=1
 446       else
 447         latest_ver=$(sort_ver $req_ver $inst_ver | cut -d' ' -f2)
 448         if [ ! "$latest_ver" = "$inst_ver" ]; then
 449           echo "$me: Error: '$app' version == $inst_ver is too old" >&2
 450           echo "       '$app' version >= $req_ver is required" >&2
 451           ret=1
 452         fi
 453       fi
 454     fi
 455   done
 456
 457   return $ret
 458 }
 459
 460 print_versions() {
 461   echo "Program    Min_version"
 462   echo "----------------------"
 463   printf %s "$buildreq"
 464   echo "----------------------"
 465   # can't depend on column -t
 466 }
 467
 468 use_libtool=0
 469 # We'd like to use grep -E, to see if any of LT_INIT,
 470 # AC_PROG_LIBTOOL, AM_PROG_LIBTOOL is used in configure.ac,
 471 # but that's not portable enough (e.g., for Solaris).
 472 grep '^[         ]*A[CM]_PROG_LIBTOOL' configure.ac >/dev/null \
 473   && use_libtool=1
 474 grep '^[         ]*LT_INIT' configure.ac >/dev/null \
 475   && use_libtool=1
 476 if test $use_libtool = 1; then
 477   find_tool LIBTOOLIZE glibtoolize libtoolize
 478 fi
 479
 480 # gnulib-tool requires at least automake and autoconf.
 481 # If either is not listed, add it (with minimum version) as a prerequisite.
 482 case $buildreq in
 483   *automake*) ;;
 484   *) buildreq="automake 1.9
 485 $buildreq" ;;
 486 esac
 487 case $buildreq in
 488   *autoconf*) ;;
 489   *) buildreq="autoconf 2.59
 490 $buildreq" ;;
 491 esac
 492
 493 # When we can deduce that gnulib-tool will require patch,
 494 # and when patch is not already listed as a prerequisite, add it, too.
 495 if test ! -d "$local_gl_dir" \
 496     || find "$local_gl_dir" -name '*.diff' -exec false {} +; then
 497   :
 498 else
 499   case $buildreq in
 500     *patch*) ;;
 501     *) buildreq="patch -
 502 $buildreq" ;;
 503   esac
 504 fi
 505
 506 if ! printf "$buildreq" | check_versions; then
 507   echo >&2
 508   if test -f README-prereq; then
 509     echo "$0: See README-prereq for how to get the prerequisite programs" >&2
 510   else
 511     echo "$0: Please install the prerequisite programs" >&2
 512   fi
 513   exit 1
 514 fi
 515
 516 echo "$0: Bootstrapping from checked-out $package sources..."
 517
 518 # See if we can use gnulib's git-merge-changelog merge driver.
 519 if test -d .git && (git --version) >/dev/null 2>/dev/null ; then
 520   if git config merge.merge-changelog.driver >/dev/null ; then
 521     :
 522   elif (git-merge-changelog --version) >/dev/null 2>/dev/null ; then
 523     echo "$0: initializing git-merge-changelog driver"
 524     git config merge.merge-changelog.name 'GNU-style ChangeLog merge driver'
 525     git config merge.merge-changelog.driver 'git-merge-changelog %O %A %B'
 526   else
 527     echo "$0: consider installing git-merge-changelog from gnulib"
 528   fi
 529 fi
 530
 531
 532 cleanup_gnulib() {
 533   status=$?
 534   rm -fr "$gnulib_path"
 535   exit $status
 536 }
 537
 538 git_modules_config () {
 539   test -f .gitmodules && git config --file .gitmodules "$@"
 540 }
 541
 542 gnulib_path=`git_modules_config submodule.gnulib.path`
 543 test -z "$gnulib_path" && gnulib_path=gnulib
 544
 545 # Get gnulib files.
 546
 547 case ${GNULIB_SRCDIR--} in
 548 -)
 549   if git_modules_config submodule.gnulib.url >/dev/null; then
 550     echo "$0: getting gnulib files..."
 551     git submodule init || exit $?
 552     git submodule update || exit $?
 553
 554   elif [ ! -d "$gnulib_path" ]; then
 555     echo "$0: getting gnulib files..."
 556
 557     trap cleanup_gnulib 1 2 13 15
 558
 559     shallow=
 560     git clone -h 2>&1 | grep -- --depth > /dev/null && shallow='--depth 2'
 561     git clone $shallow git://git.sv.gnu.org/gnulib "$gnulib_path" ||
 562       cleanup_gnulib
 563
 564     trap - 1 2 13 15
 565   fi
 566   GNULIB_SRCDIR=$gnulib_path
 567   ;;
 568 *)
 569   # Use GNULIB_SRCDIR as a reference.
 570   if test -d "$GNULIB_SRCDIR"/.git && \
 571         git_modules_config submodule.gnulib.url >/dev/null; then
 572     echo "$0: getting gnulib files..."
 573     if git submodule -h|grep -- --reference > /dev/null; then
 574       # Prefer the one-liner available in git 1.6.4 or newer.
 575       git submodule update --init --reference "$GNULIB_SRCDIR" \
 576         "$gnulib_path" || exit $?
 577     else
 578       # This fallback allows at least git 1.5.5.
 579       if test -f "$gnulib_path"/gnulib-tool; then
 580         # Since file already exists, assume submodule init already complete.
 581         git submodule update || exit $?
 582       else
 583         # Older git can't clone into an empty directory.
 584         rmdir "$gnulib_path" 2>/dev/null
 585         git clone --reference "$GNULIB_SRCDIR" \
 586           "$(git_modules_config submodule.gnulib.url)" "$gnulib_path" \
 587           && git submodule init && git submodule update \
 588           || exit $?
 589       fi
 590     fi
 591     GNULIB_SRCDIR=$gnulib_path
 592   fi
 593   ;;
 594 esac
 595
 596 if $bootstrap_sync; then
 597   cmp -s "$0" "$GNULIB_SRCDIR/build-aux/bootstrap" || {
 598     echo "$0: updating bootstrap and restarting..."
 599     exec sh -c \
 600       'cp "$1" "$2" && shift && exec "${CONFIG_SHELL-/bin/sh}" "$@"' \
 601       -- "$GNULIB_SRCDIR/build-aux/bootstrap" \
 602       "$0" "$@" --no-bootstrap-sync
 603   }
 604 fi
 605
 606 gnulib_tool=$GNULIB_SRCDIR/gnulib-tool
 607 <$gnulib_tool || exit $?
 608
 609 # Get translations.
 610
 611 download_po_files() {
 612   subdir=$1
 613   domain=$2
 614   echo "$me: getting translations into $subdir for $domain..."
 615   cmd=`printf "$po_download_command_format" "$domain" "$subdir"`
 616   eval "$cmd" && return
 617   # Fallback to HTTP.
 618   cmd=`printf "$po_download_command_format2" "$subdir" "$domain"`
 619   eval "$cmd"
 620 }
 621
 622 # Mirror .po files to $po_dir/.reference and copy only the new
 623 # or modified ones into $po_dir.  Also update $po_dir/LINGUAS.
 624 # Note po files that exist locally only are left in $po_dir but will
 625 # not be included in LINGUAS and hence will not be distributed.
 626 update_po_files() {
 627   # Directory containing primary .po files.
 628   # Overwrite them only when we're sure a .po file is new.
 629   po_dir=$1
 630   domain=$2
 631
 632   # Mirror *.po files into this dir.
 633   # Usually contains *.s1 checksum files.
 634   ref_po_dir="$po_dir/.reference"
 635
 636   test -d $ref_po_dir || mkdir $ref_po_dir || return
 637   download_po_files $ref_po_dir $domain \
 638     && ls "$ref_po_dir"/*.po 2>/dev/null |
 639       sed 's|.*/||; s|\.po$||' > "$po_dir/LINGUAS" || return
 640
 641   langs=`cd $ref_po_dir && echo *.po|sed 's/\.po//g'`
 642   test "$langs" = '*' && langs=x
 643   for po in $langs; do
 644     case $po in x) continue;; esac
 645     new_po="$ref_po_dir/$po.po"
 646     cksum_file="$ref_po_dir/$po.s1"
 647     if ! test -f "$cksum_file" ||
 648         ! test -f "$po_dir/$po.po" ||
 649         ! $SHA1SUM -c --status "$cksum_file" \
 650             < "$new_po" > /dev/null; then
 651       echo "$me: updated $po_dir/$po.po..."
 652       cp "$new_po" "$po_dir/$po.po" \
 653           && $SHA1SUM < "$new_po" > "$cksum_file"
 654     fi
 655   done
 656 }
 657
 658 case $SKIP_PO in
 659 '')
 660   if test -d po; then
 661     update_po_files po $package || exit
 662   fi
 663
 664   if test -d runtime-po; then
 665     update_po_files runtime-po $package-runtime || exit
 666   fi;;
 667 esac
 668
 669 symlink_to_dir()
 670 {
 671   src=$1/$2
 672   dst=${3-$2}
 673
 674   test -f "$src" && {
 675
 676     # If the destination directory doesn't exist, create it.
 677     # This is required at least for "lib/uniwidth/cjk.h".
 678     dst_dir=`dirname "$dst"`
 679     if ! test -d "$dst_dir"; then
 680       mkdir -p "$dst_dir"
 681
 682       # If we've just created a directory like lib/uniwidth,
 683       # tell version control system(s) it's ignorable.
 684       # FIXME: for now, this does only one level
 685       parent=`dirname "$dst_dir"`
 686       for dot_ig in x $vc_ignore; do
 687         test $dot_ig = x && continue
 688         ig=$parent/$dot_ig
 689         insert_vc_ignore $ig `echo "$dst_dir"|sed 's,.*/,,'`
 690       done
 691     fi
 692
 693     if $copy; then
 694       {
 695         test ! -h "$dst" || {
 696           echo "$me: rm -f $dst" &&
 697           rm -f "$dst"
 698         }
 699       } &&
 700       test -f "$dst" &&
 701       cmp -s "$src" "$dst" || {
 702         echo "$me: cp -fp $src $dst" &&
 703         cp -fp "$src" "$dst"
 704       }
 705     else
 706       # Leave any existing symlink alone, if it already points to the source,
 707       # so that broken build tools that care about symlink times
 708       # aren't confused into doing unnecessary builds.  Conversely, if the
 709       # existing symlink's time stamp is older than the source, make it afresh,
 710       # so that broken tools aren't confused into skipping needed builds.  See
 711       # <http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00326.html>.
 712       test -h "$dst" &&
 713       src_ls=`ls -diL "$src" 2>/dev/null` && set $src_ls && src_i=$1 &&
 714       dst_ls=`ls -diL "$dst" 2>/dev/null` && set $dst_ls && dst_i=$1 &&
 715       test "$src_i" = "$dst_i" &&
 716       both_ls=`ls -dt "$src" "$dst"` &&
 717       test "X$both_ls" = "X$dst$nl$src" || {
 718         dot_dots=
 719         case $src in
 720         /*) ;;
 721         *)
 722           case /$dst/ in
 723           *//* | */../* | */./* | /*/*/*/*/*/)
 724              echo >&2 "$me: invalid symlink calculation: $src -> $dst"
 725              exit 1;;
 726           /*/*/*/*/)    dot_dots=../../../;;
 727           /*/*/*/)      dot_dots=../../;;
 728           /*/*/)        dot_dots=../;;
 729           esac;;
 730         esac
 731
 732         echo "$me: ln -fs $dot_dots$src $dst" &&
 733         ln -fs "$dot_dots$src" "$dst"
 734       }
 735     fi
 736   }
 737 }
 738
 739 # NOTE: we have to be careful to run both autopoint and libtoolize
 740 # before gnulib-tool, since gnulib-tool is likely to provide newer
 741 # versions of files "installed" by these two programs.
 742 # Then, *after* gnulib-tool (see below), we have to be careful to
 743 # run autoreconf in such a way that it does not run either of these
 744 # two just-pre-run programs.
 745
 746 # Import from gettext.
 747 with_gettext=yes
 748 grep '^[         ]*AM_GNU_GETTEXT_VERSION(' configure.ac >/dev/null || \
 749     with_gettext=no
 750
 751 if test $with_gettext = yes; then
 752   # Released autopoint has the tendency to install macros that have been
 753   # obsoleted in current gnulib, so run this before gnulib-tool.
 754   echo "$0: $AUTOPOINT --force"
 755   $AUTOPOINT --force || exit
 756 fi
 757
 758 # Autoreconf runs aclocal before libtoolize, which causes spurious
 759 # warnings if the initial aclocal is confused by the libtoolized
 760 # (or worse out-of-date) macro directory.
 761 if test $use_libtool = 1; then
 762   echo "running: $LIBTOOLIZE --copy --install"
 763   $LIBTOOLIZE --copy --install
 764 fi
 765
 766 version_controlled_file() {
 767   dir=$1
 768   file=$2
 769   found=no
 770   if test -d CVS; then
 771     grep -F "/$file/" $dir/CVS/Entries 2>/dev/null |
 772              grep '^/[^/]*/[0-9]' > /dev/null && found=yes
 773   elif test -d .git; then
 774     git rm -n "$dir/$file" > /dev/null 2>&1 && found=yes
 775   elif test -d .svn; then
 776     svn log -r HEAD "$dir/$file" > /dev/null 2>&1 && found=yes
 777   else
 778     echo "$me: no version control for $dir/$file?" >&2
 779   fi
 780   test $found = yes
 781 }
 782
 783 # Import from gnulib.
 784
 785 gnulib_tool_options="\
 786  --import\
 787  --no-changelog\
 788  --aux-dir $build_aux\
 789  --doc-base $doc_base\
 790  --lib $gnulib_name\
 791  --m4-base $m4_base/\
 792  --source-base $source_base/\
 793  --tests-base $tests_base\
 794  --local-dir $local_gl_dir\
 795  $gnulib_tool_option_extras\
 796 "
 797 if test $use_libtool = 1; then
 798   case "$gnulib_tool_options " in
 799     *' --libtool '*) ;;
 800     *) gnulib_tool_options="$gnulib_tool_options --libtool" ;;
 801   esac
 802 fi
 803 echo "$0: $gnulib_tool $gnulib_tool_options --import ..."
 804 $gnulib_tool $gnulib_tool_options --import $gnulib_modules &&
 805
 806 for file in $gnulib_files; do
 807   symlink_to_dir "$GNULIB_SRCDIR" $file || exit
 808 done
 809
 810 bootstrap_post_import_hook \
 811   || { echo >&2 "$me: bootstrap_post_import_hook failed"; exit 1; }
 812
 813 # Remove any dangling symlink matching "*.m4" or "*.[ch]" in some
 814 # gnulib-populated directories.  Such .m4 files would cause aclocal to fail.
 815 # The following requires GNU find 4.2.3 or newer.  Considering the usual
 816 # portability constraints of this script, that may seem a very demanding
 817 # requirement, but it should be ok.  Ignore any failure, which is fine,
 818 # since this is only a convenience to help developers avoid the relatively
 819 # unusual case in which a symlinked-to .m4 file is git-removed from gnulib
 820 # between successive runs of this script.
 821 find "$m4_base" "$source_base" \
 822   -depth \( -name '*.m4' -o -name '*.[ch]' \) \
 823   -type l -xtype l -delete > /dev/null 2>&1
 824
 825 # Some systems (RHEL 5) are using ancient autotools, for which the
 826 # --no-recursive option had not been invented.  Detect that lack and
 827 # omit the option when it's not supported.  FIXME in 2017: remove this
 828 # hack when RHEL 5 autotools are updated, or when they become irrelevant.
 829 no_recursive=
 830 case $($AUTORECONF --help) in
 831   *--no-recursive*) no_recursive=--no-recursive;;
 832 esac
 833
 834 # Tell autoreconf not to invoke autopoint or libtoolize; they were run above.
 835 echo "running: AUTOPOINT=true LIBTOOLIZE=true " \
 836     "$AUTORECONF --verbose --install $no_recursive -I $m4_base $ACLOCAL_FLAGS"
 837 AUTOPOINT=true LIBTOOLIZE=true \
 838     $AUTORECONF --verbose --install $no_recursive -I $m4_base $ACLOCAL_FLAGS \
 839   || exit 1
 840
 841 # Get some extra files from gnulib, overriding existing files.
 842 for file in $gnulib_extra_files; do
 843   case $file in
 844   */INSTALL) dst=INSTALL;;
 845   build-aux/*) dst=$build_aux/`expr "$file" : 'build-aux/\(.*\)'`;;
 846   *) dst=$file;;
 847   esac
 848   symlink_to_dir "$GNULIB_SRCDIR" $file $dst || exit
 849 done
 850
 851 if test $with_gettext = yes; then
 852   # Create gettext configuration.
 853   echo "$0: Creating po/Makevars from po/Makevars.template ..."
 854   rm -f po/Makevars
 855   sed '
 856     /^EXTRA_LOCALE_CATEGORIES *=/s/=.*/= '"$EXTRA_LOCALE_CATEGORIES"'/
 857     /^COPYRIGHT_HOLDER *=/s/=.*/= '"$COPYRIGHT_HOLDER"'/
 858     /^MSGID_BUGS_ADDRESS *=/s|=.*|= '"$MSGID_BUGS_ADDRESS"'|
 859     /^XGETTEXT_OPTIONS *=/{
 860       s/$/ \\/
 861       a\
 862           '"$XGETTEXT_OPTIONS"' $${end_of_xgettext_options+}
 863     }
 864   ' po/Makevars.template >po/Makevars || exit 1
 865
 866   cat $GNULIB_SRCDIR/build-aux/po/Makefile.in.in > po/Makefile.in.in || exit 1
 867
 868   if test -d runtime-po; then
 869     # Similarly for runtime-po/Makevars, but not quite the same.
 870     rm -f runtime-po/Makevars
 871     sed '
 872       /^DOMAIN *=.*/s/=.*/= '"$package"'-runtime/
 873       /^subdir *=.*/s/=.*/= runtime-po/
 874       /^MSGID_BUGS_ADDRESS *=/s/=.*/= bug-'"$package"'@gnu.org/
 875       /^XGETTEXT_OPTIONS *=/{
 876         s/$/ \\/
 877         a\
 878             '"$XGETTEXT_OPTIONS_RUNTIME"' $${end_of_xgettext_options+}
 879       }
 880     ' po/Makevars.template >runtime-po/Makevars || exit 1
 881
 882     # Copy identical files from po to runtime-po.
 883     (cd po && cp -p Makefile.in.in *-quot *.header *.sed *.sin ../runtime-po)
 884   fi
 885 fi
 886
 887 bootstrap_epilogue
 888
 889 echo "$0: done.  Now you can run './configure'."
 890
 891 # Local variables:
 892 # eval: (add-hook 'write-file-hooks 'time-stamp)
 893 # time-stamp-start: "scriptversion="
 894 # time-stamp-format: "%:y-%02m-%02d.%02H"
 895 # time-stamp-time-zone: "UTC"
 896 # time-stamp-end: "; # UTC"
 897 # End: