bootstrap

   1 #! /bin/sh
   2 # DO NOT EDIT! GENERATED AUTOMATICALLY!
   3
   4 # Bootstrap this package from checked-out sources.
   5
   6 scriptversion=2022-12-27.07; # UTC
   7
   8 # Copyright (C) 2003-2023 Free Software Foundation, Inc.
   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 3 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,
  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 <https://www.gnu.org/licenses/>.
  22
  23 # Originally written by Paul Eggert.  The canonical version of this
  24 # script is maintained as top/bootstrap in gnulib. However, to be
  25 # useful to your package, you should place a copy of it under version
  26 # control in the top-level directory of your package.  The intent is
  27 # that all customization can be done with a bootstrap.conf file also
  28 # maintained in your version control; gnulib comes with a template
  29 # build-aux/bootstrap.conf to get you started.
  30
  31 # Please report bugs or propose patches to bug-gnulib@gnu.org.
  32
  33 me="$0"
  34 medir=`dirname "$me"`
  35
  36 # Read the function library and the configuration.
  37
  38 # A library of shell functions for autopull.sh, autogen.sh, and bootstrap.
  39
  40 scriptlibversion=2023-01-06.19; # UTC
  41
  42 # Copyright (C) 2003-2023 Free Software Foundation, Inc.
  43 #
  44 # This program is free software: you can redistribute it and/or modify
  45 # it under the terms of the GNU General Public License as published by
  46 # the Free Software Foundation, either version 3 of the License, or
  47 # (at your option) any later version.
  48 #
  49 # This program is distributed in the hope that it will be useful,
  50 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  51 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  52 # GNU General Public License for more details.
  53 #
  54 # You should have received a copy of the GNU General Public License
  55 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  56
  57 # Originally written by Paul Eggert.  The canonical version of this
  58 # script is maintained as top/bootstrap-funclib.sh in gnulib.  However,
  59 # to be useful to your package, you should place a copy of it under
  60 # version control in the top-level directory of your package.  The
  61 # intent is that all customization can be done with a bootstrap.conf
  62 # file also maintained in your version control; gnulib comes with a
  63 # template build-aux/bootstrap.conf to get you started.
  64
  65 nl='
  66 '
  67
  68 # Ensure file names are sorted consistently across platforms.
  69 LC_ALL=C
  70 export LC_ALL
  71
  72 # Honor $PERL, but work even if there is none.
  73 PERL="${PERL-perl}"
  74
  75 default_gnulib_url=https://git.savannah.gnu.org/git/gnulib.git
  76
  77 # Copyright year, for the --version output.
  78 copyright_year=`echo "$scriptlibversion" | sed -e 's/[^0-9].*//'`
  79 copyright="Copyright (C) ${copyright_year} Free Software Foundation, Inc.
  80 License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
  81 This is free software: you are free to change and redistribute it.
  82 There is NO WARRANTY, to the extent permitted by law."
  83
  84 # warnf_ FORMAT-STRING ARG1...
  85 warnf_ ()
  86 {
  87   warnf_format_=$1
  88   shift
  89   nl='
  90 '
  91   case $* in
  92     *$nl*) me_=$(printf "$me"|tr "$nl|" '??')
  93        printf "$warnf_format_" "$@" | sed "s|^|$me_: |" ;;
  94     *) printf "$me: $warnf_format_" "$@" ;;
  95   esac >&2
  96 }
  97
  98 # warn_ WORD1...
  99 warn_ ()
 100 {
 101   # If IFS does not start with ' ', set it and emit the warning in a subshell.
 102   case $IFS in
 103     ' '*) warnf_ '%s\n' "$*";;
 104     *)    (IFS=' '; warn_ "$@");;
 105   esac
 106 }
 107
 108 # die WORD1...
 109 die() { warn_ "$@"; exit 1; }
 110
 111 # ------------------------------ Configuration. ------------------------------
 112
 113 # Directory that contains package-specific gnulib modules and/or overrides.
 114 local_gl_dir=gl
 115
 116 # Name of the Makefile.am
 117 # XXX Not used.
 118 gnulib_mk=gnulib.mk
 119
 120 # List of gnulib modules needed.
 121 gnulib_modules=
 122
 123 # Any gnulib files needed that are not in modules.
 124 gnulib_files=
 125
 126 # A function to be called for each unrecognized option.  Returns 0 if
 127 # the option in $1 has been processed by the function.  Returns 1 if
 128 # the option has not been processed by the function.  Override it via
 129 # your own definition in bootstrap.conf
 130 bootstrap_option_hook() { return 1; }
 131
 132 # A function to be called in order to print the --help information
 133 # corresponding to user-defined command-line options.
 134 bootstrap_print_option_usage_hook() { :; }
 135
 136 # A function to be called at the end of autopull.sh.
 137 # Override it via your own definition in bootstrap.conf.
 138 bootstrap_post_pull_hook() { :; }
 139
 140 # A function to be called right after gnulib-tool is run.
 141 # Override it via your own definition in bootstrap.conf.
 142 bootstrap_post_import_hook() { :; }
 143
 144 # A function to be called after everything else in this script.
 145 # Override it via your own definition in bootstrap.conf.
 146 bootstrap_epilogue() { :; }
 147
 148 # The command to download all .po files for a specified domain into a
 149 # specified directory.  Fill in the first %s with the destination
 150 # directory and the second with the domain name.
 151 po_download_command_format=\
 152 "wget --mirror --level=1 -nd -nv -A.po -P '%s' \
 153  https://translationproject.org/latest/%s/"
 154
 155 # Prefer a non-empty tarname (4th argument of AC_INIT if given), else
 156 # fall back to the package name (1st argument with munging).
 157 extract_package_name='
 158   /^AC_INIT(\[*/{
 159      s///
 160      /^[^,]*,[^,]*,[^,]*,[ []*\([^][ ,)]\)/{
 161        s//\1/
 162        s/[],)].*//
 163        p
 164        q
 165      }
 166      s/[],)].*//
 167      s/^GNU //
 168      y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/
 169      s/[^abcdefghijklmnopqrstuvwxyz0123456789_]/-/g
 170      p
 171   }
 172 '
 173 package=$(${AUTOCONF:-autoconf} --trace AC_INIT:\$4 configure.ac 2>/dev/null)
 174 if test -z "$package"; then
 175   package=$(sed -n "$extract_package_name" configure.ac) \
 176       || die 'cannot find package name in configure.ac'
 177 fi
 178 gnulib_name=lib$package
 179
 180 build_aux=build-aux
 181 source_base=lib
 182 m4_base=m4
 183 doc_base=doc
 184 tests_base=tests
 185 gnulib_extra_files="
 186         build-aux/install-sh
 187         build-aux/mdate-sh
 188         build-aux/texinfo.tex
 189         build-aux/depcomp
 190         build-aux/config.guess
 191         build-aux/config.sub
 192         doc/INSTALL
 193 "
 194
 195 # Additional gnulib-tool options to use.  Use "\newline" to break lines.
 196 gnulib_tool_option_extras=
 197
 198 # Other locale categories that need message catalogs.
 199 EXTRA_LOCALE_CATEGORIES=
 200
 201 # Additional xgettext options to use.  Use "\\\newline" to break lines.
 202 XGETTEXT_OPTIONS='\\\
 203  --flag=_:1:pass-c-format\\\
 204  --flag=N_:1:pass-c-format\\\
 205  --flag=error:3:c-format --flag=error_at_line:5:c-format\\\
 206 '
 207
 208 # Package bug report address and copyright holder for gettext files
 209 COPYRIGHT_HOLDER='Free Software Foundation, Inc.'
 210 MSGID_BUGS_ADDRESS=bug-$package@gnu.org
 211
 212 # Files we don't want to import.
 213 # XXX Not used.
 214 excluded_files=
 215
 216 # File that should exist in the top directory of a checked out hierarchy,
 217 # but not in a distribution tarball.
 218 checkout_only_file=README-hacking
 219
 220 # Set this to '.cvsignore .gitignore' in bootstrap.conf if you want
 221 # those files to be generated in directories like lib/, m4/, and po/.
 222 # Or set it to 'auto' to make this script select which to use based
 223 # on which version control system (if any) is used in the source directory.
 224 vc_ignore=auto
 225
 226 # Set this to true in bootstrap.conf to enable --bootstrap-sync by
 227 # default.
 228 bootstrap_sync=false
 229
 230 # Override the default configuration, if necessary.
 231 # Make sure that bootstrap.conf is sourced from the current directory
 232 # if we were invoked as "sh bootstrap".
 233 conffile=`dirname "$me"`/bootstrap.conf
 234 test -r "$conffile" && . "$conffile"
 235
 236 # ------------------------- Build-time prerequisites -------------------------
 237
 238 check_exists() {
 239   if test "$1" = "--verbose"; then
 240     ($2 --version </dev/null) >/dev/null 2>&1
 241     if test $? -ge 126; then
 242       # If not found, run with diagnostics as one may be
 243       # presented with env variables to set to find the right version
 244       ($2 --version </dev/null)
 245     fi
 246   else
 247     ($1 --version </dev/null) >/dev/null 2>&1
 248   fi
 249
 250   test $? -lt 126
 251 }
 252
 253 # Note this deviates from the version comparison in automake
 254 # in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a
 255 # but this should suffice as we won't be specifying old
 256 # version formats or redundant trailing .0 in bootstrap.conf.
 257 # If we did want full compatibility then we should probably
 258 # use m4_version_compare from autoconf.
 259 sort_ver() { # sort -V is not generally available
 260   ver1="$1"
 261   ver2="$2"
 262
 263   # split on '.' and compare each component
 264   i=1
 265   while : ; do
 266     p1=$(echo "$ver1" | cut -d. -f$i)
 267     p2=$(echo "$ver2" | cut -d. -f$i)
 268     if [ ! "$p1" ]; then
 269       echo "$1 $2"
 270       break
 271     elif [ ! "$p2" ]; then
 272       echo "$2 $1"
 273       break
 274     elif [ ! "$p1" = "$p2" ]; then
 275       if [ "$p1" -gt "$p2" ] 2>/dev/null; then # numeric comparison
 276         echo "$2 $1"
 277       elif [ "$p2" -gt "$p1" ] 2>/dev/null; then # numeric comparison
 278         echo "$1 $2"
 279       else # numeric, then lexicographic comparison
 280         lp=$(printf "%s\n%s\n" "$p1" "$p2" | LANG=C sort -n | tail -n1)
 281         if [ "$lp" = "$p2" ]; then
 282           echo "$1 $2"
 283         else
 284           echo "$2 $1"
 285         fi
 286       fi
 287       break
 288     fi
 289     i=$(($i+1))
 290   done
 291 }
 292
 293 get_version_sed='
 294 # Move version to start of line.
 295 s/.*[v ]\([0-9]\)/\1/
 296
 297 # Skip lines that do not start with version.
 298 /^[0-9]/!d
 299
 300 # Remove characters after the version.
 301 s/[^.a-z0-9-].*//
 302
 303 # The first component must be digits only.
 304 s/^\([0-9]*\)[a-z-].*/\1/
 305
 306 #the following essentially does s/5.005/5.5/
 307 s/\.0*\([1-9]\)/.\1/g
 308 p
 309 q'
 310
 311 get_version() {
 312   app=$1
 313
 314   $app --version >/dev/null 2>&1 || { $app --version; return 1; }
 315
 316   $app --version 2>&1 | sed -n "$get_version_sed"
 317 }
 318
 319 check_versions() {
 320   ret=0
 321
 322   while read app req_ver; do
 323     # We only need libtoolize from the libtool package.
 324     if test "$app" = libtool; then
 325       app=libtoolize
 326     fi
 327     # Exempt git if git is not needed.
 328     if test "$app" = git; then
 329       $check_git || continue
 330     fi
 331     # Honor $APP variables ($TAR, $AUTOCONF, etc.)
 332     appvar=$(echo $app | LC_ALL=C tr '[a-z]-' '[A-Z]_')
 333     test "$appvar" = TAR && appvar=AMTAR
 334     case $appvar in
 335         GZIP) ;; # Do not use $GZIP:  it contains gzip options.
 336         PERL::*) ;; # Keep perl modules as-is
 337         *) eval "app=\${$appvar-$app}" ;;
 338     esac
 339
 340     # Handle the still-experimental Automake-NG programs specially.
 341     # They remain named as the mainstream Automake programs ("automake",
 342     # and "aclocal") to avoid gratuitous incompatibilities with
 343     # pre-existing usages (by, say, autoreconf, or custom autogen.sh
 344     # scripts), but correctly identify themselves (as being part of
 345     # "GNU automake-ng") when asked their version.
 346     case $app in
 347       automake-ng|aclocal-ng)
 348         app=${app%-ng}
 349         ($app --version | grep '(GNU automake-ng)') >/dev/null 2>&1 || {
 350           warn_ "Error: '$app' not found or not from Automake-NG"
 351           ret=1
 352           continue
 353         } ;;
 354       # Another check is for perl modules.  These can be written as
 355       # e.g. perl::XML::XPath in case of XML::XPath module, etc.
 356       perl::*)
 357         # Extract module name
 358         app="${app#perl::}"
 359         if ! $PERL -m"$app" -e 'exit 0' >/dev/null 2>&1; then
 360           warn_ "Error: perl module '$app' not found"
 361           ret=1
 362         fi
 363         continue
 364         ;;
 365     esac
 366     if [ "$req_ver" = "-" ]; then
 367       # Merely require app to exist; not all prereq apps are well-behaved
 368       # so we have to rely on $? rather than get_version.
 369       if ! check_exists --verbose $app; then
 370         warn_ "Error: '$app' not found"
 371         ret=1
 372       fi
 373     else
 374       # Require app to produce a new enough version string.
 375       inst_ver=$(get_version $app)
 376       if [ ! "$inst_ver" ]; then
 377         warn_ "Error: '$app' not found"
 378         ret=1
 379       else
 380         latest_ver=$(sort_ver $req_ver $inst_ver | cut -d' ' -f2)
 381         if [ ! "$latest_ver" = "$inst_ver" ]; then
 382           warnf_ '%s\n'                                        \
 383               "Error: '$app' version == $inst_ver is too old"  \
 384               "       '$app' version >= $req_ver is required"
 385           ret=1
 386         fi
 387       fi
 388     fi
 389   done
 390
 391   return $ret
 392 }
 393
 394 print_versions() {
 395   echo "Program    Min_version"
 396   echo "----------------------"
 397   printf %s "$buildreq"
 398   echo "----------------------"
 399   # can't depend on column -t
 400 }
 401
 402 # check_build_prerequisites check_git
 403 check_build_prerequisites()
 404 {
 405   check_git="$1"
 406
 407   # gnulib-tool requires at least automake and autoconf.
 408   # If either is not listed, add it (with minimum version) as a prerequisite.
 409   case $buildreq in
 410     *automake*) ;;
 411     *) buildreq="automake 1.9
 412 $buildreq" ;;
 413   esac
 414   case $buildreq in
 415     *autoconf*) ;;
 416     *) buildreq="autoconf 2.59
 417 $buildreq" ;;
 418   esac
 419
 420   # When we can deduce that gnulib-tool will require patch,
 421   # and when patch is not already listed as a prerequisite, add it, too.
 422   if test -d "$local_gl_dir" \
 423      && ! find "$local_gl_dir" -name '*.diff' -exec false {} +; then
 424     case $buildreq in
 425       *patch*) ;;
 426       *) buildreq="patch -
 427 $buildreq" ;;
 428     esac
 429   fi
 430
 431   if ! printf '%s' "$buildreq" | check_versions; then
 432     echo >&2
 433     if test -f README-prereq; then
 434       die "See README-prereq for how to get the prerequisite programs"
 435     else
 436       die "Please install the prerequisite programs"
 437     fi
 438   fi
 439
 440   # Warn the user if autom4te appears to be broken; this causes known
 441   # issues with at least gettext 0.18.3.
 442   probe=$(echo 'm4_quote([hi])' | autom4te -l M4sugar -t 'm4_quote:$%' -)
 443   if test "x$probe" != xhi; then
 444     warn_ "WARNING: your autom4te wrapper eats stdin;"
 445     warn_ "if bootstrap fails, consider upgrading your autotools"
 446   fi
 447 }
 448
 449 # find_tool ENVVAR NAMES...
 450 # -------------------------
 451 # Search for a required program.  Use the value of ENVVAR, if set,
 452 # otherwise find the first of the NAMES that can be run.
 453 # If found, set ENVVAR to the program name, die otherwise.
 454 #
 455 # FIXME: code duplication, see also gnu-web-doc-update.
 456 find_tool ()
 457 {
 458   find_tool_envvar=$1
 459   shift
 460   find_tool_names=$@
 461   eval "find_tool_res=\$$find_tool_envvar"
 462   if test x"$find_tool_res" = x; then
 463     for i; do
 464       if check_exists $i; then
 465         find_tool_res=$i
 466         break
 467       fi
 468     done
 469   fi
 470   if test x"$find_tool_res" = x; then
 471     warn_ "one of these is required: $find_tool_names;"
 472     die   "alternatively set $find_tool_envvar to a compatible tool"
 473   fi
 474   eval "$find_tool_envvar=\$find_tool_res"
 475   eval "export $find_tool_envvar"
 476 }
 477
 478 # --------------------- Preparing GNULIB_SRCDIR for use. ---------------------
 479 # This is part of autopull.sh, but bootstrap needs it too, for self-upgrading.
 480
 481 cleanup_gnulib() {
 482   status=$?
 483   # XXX It's a bad idea to erase the submodule directory if it contains local
 484   #     modifications.
 485   rm -fr "$gnulib_path"
 486   exit $status
 487 }
 488
 489 git_modules_config () {
 490   test -f .gitmodules && git config --file .gitmodules "$@"
 491 }
 492
 493 prepare_GNULIB_SRCDIR ()
 494 {
 495   if test -n "$GNULIB_SRCDIR"; then
 496     # Use GNULIB_SRCDIR directly.
 497     # We already checked that $GNULIB_SRCDIR references a directory.
 498     # Verify that it contains a gnulib checkout.
 499     test -f "$GNULIB_SRCDIR/gnulib-tool" \
 500       || die "Error: --gnulib-srcdir or \$GNULIB_SRCDIR is specified, but does not contain gnulib-tool"
 501   elif $use_git; then
 502     gnulib_path=$(git_modules_config submodule.gnulib.path)
 503     test -z "$gnulib_path" && gnulib_path=gnulib
 504
 505     # Get gnulib files.  Populate $gnulib_path, possibly updating a
 506     # submodule, for use in the rest of the script.
 507
 508     if test -n "$GNULIB_REFDIR" && test -d "$GNULIB_REFDIR"/.git \
 509        && git_modules_config submodule.gnulib.url >/dev/null; then
 510       # Use GNULIB_REFDIR as a reference.
 511       echo "$0: getting gnulib files..."
 512       if git submodule -h|grep -- --reference > /dev/null; then
 513         # Prefer the one-liner available in git 1.6.4 or newer.
 514         git submodule update --init --reference "$GNULIB_REFDIR" \
 515           "$gnulib_path" || exit $?
 516       else
 517         # This fallback allows at least git 1.5.5.
 518         if test -f "$gnulib_path"/gnulib-tool; then
 519           # Since file already exists, assume submodule init already complete.
 520           git submodule update -- "$gnulib_path" || exit $?
 521         else
 522           # Older git can't clone into an empty directory.
 523           rmdir "$gnulib_path" 2>/dev/null
 524           git clone --reference "$GNULIB_REFDIR" \
 525             "$(git_modules_config submodule.gnulib.url)" "$gnulib_path" \
 526             && git submodule init -- "$gnulib_path" \
 527             && git submodule update -- "$gnulib_path" \
 528             || exit $?
 529         fi
 530       fi
 531     else
 532       # GNULIB_REFDIR is not set or not usable. Ignore it.
 533       if git_modules_config submodule.gnulib.url >/dev/null; then
 534         echo "$0: getting gnulib files..."
 535         git submodule init -- "$gnulib_path" || exit $?
 536         git submodule update -- "$gnulib_path" || exit $?
 537
 538       elif [ ! -d "$gnulib_path" ]; then
 539         echo "$0: getting gnulib files..."
 540
 541         trap cleanup_gnulib HUP INT PIPE TERM
 542
 543         shallow=
 544         if test -z "$GNULIB_REVISION"; then
 545           if git clone -h 2>&1 | grep -- --depth > /dev/null; then
 546             shallow='--depth 2'
 547           fi
 548           git clone $shallow ${GNULIB_URL:-$default_gnulib_url} "$gnulib_path" \
 549             || cleanup_gnulib
 550         else
 551           if git fetch -h 2>&1 | grep -- --depth > /dev/null; then
 552             shallow='--depth 2'
 553           fi
 554           mkdir -p "$gnulib_path"
 555           # Only want a shallow checkout of $GNULIB_REVISION, but git does not
 556           # support cloning by commit hash. So attempt a shallow fetch by commit
 557           # hash to minimize the amount of data downloaded and changes needed to
 558           # be processed, which can drastically reduce download and processing
 559           # time for checkout. If the fetch by commit fails, a shallow fetch can
 560           # not be performed because we do not know what the depth of the commit
 561           # is without fetching all commits. So fallback to fetching all commits.
 562           git -C "$gnulib_path" init
 563           git -C "$gnulib_path" remote add origin \
 564               ${GNULIB_URL:-$default_gnulib_url}
 565           git -C "$gnulib_path" fetch $shallow origin "$GNULIB_REVISION" \
 566             || git -C "$gnulib_path" fetch origin \
 567             || cleanup_gnulib
 568           git -C "$gnulib_path" reset --hard FETCH_HEAD
 569         fi
 570
 571         trap - HUP INT PIPE TERM
 572       fi
 573     fi
 574     GNULIB_SRCDIR=$gnulib_path
 575     # Verify that the submodule contains a gnulib checkout.
 576     test -f "$gnulib_path/gnulib-tool" \
 577       || die "Error: $gnulib_path is supposed to contain a gnulib checkout, but does not contain gnulib-tool"
 578   fi
 579
 580   # XXX Should this be done if $use_git is false?
 581   if test -d "$GNULIB_SRCDIR"/.git && test -n "$GNULIB_REVISION" \
 582      && ! git_modules_config submodule.gnulib.url >/dev/null; then
 583     (cd "$GNULIB_SRCDIR" && git checkout "$GNULIB_REVISION") || cleanup_gnulib
 584   fi
 585
 586   # $GNULIB_SRCDIR now points to the version of gnulib to use, and
 587   # we no longer need to use git or $gnulib_path below here.
 588 }
 589
 590 # -------- Upgrading bootstrap to the version found in GNULIB_SRCDIR. --------
 591
 592 upgrade_bootstrap ()
 593 {
 594   if test -f "$medir"/bootstrap-funclib.sh; then
 595     update_lib=true
 596     { cmp -s "$medir"/bootstrap "$GNULIB_SRCDIR/top/bootstrap" \
 597       && cmp -s "$medir"/bootstrap-funclib.sh "$GNULIB_SRCDIR/top/bootstrap-funclib.sh" \
 598       && cmp -s "$medir"/autopull.sh "$GNULIB_SRCDIR/top/autopull.sh" \
 599       && cmp -s "$medir"/autogen.sh "$GNULIB_SRCDIR/top/autogen.sh"; \
 600     }
 601   else
 602     update_lib=false
 603     cmp -s "$medir"/bootstrap "$GNULIB_SRCDIR/build-aux/bootstrap"
 604   fi || {
 605     if $update_lib; then
 606       echo "$0: updating bootstrap & companions and restarting..."
 607     else
 608       echo "$0: updating bootstrap and restarting..."
 609     fi
 610     case $(sh -c 'echo "$1"' -- a) in
 611       a) ignored=--;;
 612       *) ignored=ignored;;
 613     esac
 614     exec sh -c \
 615       '{ if '$update_lib' && test -f "$1"; then cp "$1" "$3"; else cp "$2" "$3"; fi; } && { if '$update_lib' && test -f "$4"; then cp "$4" "$5"; else rm -f "$5"; fi; } && { if '$update_lib' && test -f "$6"; then cp "$6" "$7"; else rm -f "$7"; fi; } && { if '$update_lib' && test -f "$8"; then cp "$8" "$9"; else rm -f "$9"; fi; } && shift && shift && shift && shift && shift && shift && shift && shift && shift && exec "${CONFIG_SHELL-/bin/sh}" "$@"' \
 616       $ignored \
 617       "$GNULIB_SRCDIR/top/bootstrap" "$GNULIB_SRCDIR/build-aux/bootstrap" "$medir/bootstrap" \
 618       "$GNULIB_SRCDIR/top/bootstrap-funclib.sh" "$medir/bootstrap-funclib.sh" \
 619       "$GNULIB_SRCDIR/top/autopull.sh" "$medir/autopull.sh" \
 620       "$GNULIB_SRCDIR/top/autogen.sh" "$medir/autogen.sh" \
 621       "$0" "$@" --no-bootstrap-sync
 622   }
 623 }
 624
 625 # ----------------------------------------------------------------------------
 626
 627 if test x"$gnulib_modules$gnulib_files$gnulib_extra_files" = x; then
 628   use_gnulib=false
 629 else
 630   use_gnulib=true
 631 fi
 632
 633 # -------- Fetch auxiliary files from the network.  --------------------------
 634
 635 autopull_usage() {
 636   cat <<EOF
 637 Usage: $me [OPTION]...
 638 Bootstrap this package from the checked-out sources.
 639
 640 Optional environment variables:
 641   GNULIB_SRCDIR            Specifies the local directory where gnulib
 642                            sources reside.  Use this if you already
 643                            have gnulib sources on your machine, and
 644                            you want to use these sources.
 645   GNULIB_REFDIR            Specifies the local directory where a gnulib
 646                            repository (with a .git subdirectory) resides.
 647                            Use this if you already have gnulib sources
 648                            and history on your machine, and do not want
 649                            to waste your bandwidth downloading them again.
 650   GNULIB_URL               Cloneable URL of the gnulib repository.
 651
 652 Options:
 653   --bootstrap-sync         if this bootstrap script is not identical to
 654                            the version in the local gnulib sources,
 655                            update this script, and then restart it with
 656                            /bin/sh or the shell \$CONFIG_SHELL
 657   --no-bootstrap-sync      do not check whether bootstrap is out of sync
 658   --force                  attempt to bootstrap even if the sources seem
 659                            not to have been checked out
 660   --no-git                 do not use git to update gnulib.  Requires that
 661                            \$GNULIB_SRCDIR or the --gnulib-srcdir option
 662                            points to a gnulib repository with the correct
 663                            revision
 664   --skip-po                do not download po files
 665 EOF
 666   bootstrap_print_option_usage_hook
 667   cat <<EOF
 668 If the file bootstrap.conf exists in the same directory as this script, its
 669 contents are read as shell variables to configure the bootstrap.
 670
 671 For build prerequisites, environment variables like \$AUTOCONF and \$AMTAR
 672 are honored.
 673
 674 Gnulib sources can be fetched in various ways:
 675
 676  * If the environment variable GNULIB_SRCDIR is set (either as an
 677    environment variable or via the --gnulib-srcdir option), then sources
 678    are fetched from that local directory.  If it is a git repository and
 679    the configuration variable GNULIB_REVISION is set in bootstrap.conf,
 680    then that revision is checked out.
 681
 682  * Otherwise, if this package is in a git repository with a 'gnulib'
 683    submodule configured, then that submodule is initialized and updated
 684    and sources are fetched from there.  If GNULIB_REFDIR is set (either
 685    as an environment variable or via the --gnulib-refdir option) and is
 686    a git repository, then it is used as a reference.
 687
 688  * Otherwise, if the 'gnulib' directory does not exist, Gnulib sources
 689    are cloned into that directory using git from \$GNULIB_URL, defaulting
 690    to $default_gnulib_url.
 691    If the configuration variable GNULIB_REVISION is set in bootstrap.conf,
 692    then that revision is checked out.
 693
 694  * Otherwise, the existing Gnulib sources in the 'gnulib' directory are
 695    used.  If it is a git repository and the configuration variable
 696    GNULIB_REVISION is set in bootstrap.conf, then that revision is
 697    checked out.
 698
 699 If you maintain a package and want to pin a particular revision of the
 700 Gnulib sources that has been tested with your package, then there are
 701 two possible approaches: either configure a 'gnulib' submodule with the
 702 appropriate revision, or set GNULIB_REVISION (and if necessary
 703 GNULIB_URL) in bootstrap.conf.
 704
 705 Running without arguments will suffice in most cases.
 706 EOF
 707 }
 708
 709 # Fetch auxiliary files that are omitted from the version control
 710 # repository of this package.
 711 autopull()
 712 {
 713   # Ensure that CDPATH is not set.  Otherwise, the output from cd
 714   # would cause trouble in at least one use below.
 715   (unset CDPATH) >/dev/null 2>&1 && unset CDPATH
 716
 717   # Parse options.
 718
 719   # Use git to update gnulib sources
 720   use_git=true
 721
 722   for option
 723   do
 724     case $option in
 725     --help)
 726       autopull_usage
 727       return;;
 728     --version)
 729       set -e
 730       echo "autopull.sh $scriptlibversion"
 731       echo "$copyright"
 732       return 0
 733       ;;
 734     --skip-po)
 735       SKIP_PO=t;;
 736     --force)
 737       checkout_only_file=;;
 738     --bootstrap-sync)
 739       bootstrap_sync=true;;
 740     --no-bootstrap-sync)
 741       bootstrap_sync=false;;
 742     --no-git)
 743       use_git=false;;
 744     *)
 745       bootstrap_option_hook $option || die "$option: unknown option";;
 746     esac
 747   done
 748
 749   $use_git || test -n "$GNULIB_SRCDIR" \
 750     || die "Error: --no-git requires \$GNULIB_SRCDIR environment variable or --gnulib-srcdir option"
 751   test -z "$GNULIB_SRCDIR" || test -d "$GNULIB_SRCDIR" \
 752     || die "Error: \$GNULIB_SRCDIR environment variable or --gnulib-srcdir option is specified, but does not denote a directory"
 753
 754   if test -n "$checkout_only_file" && test ! -r "$checkout_only_file"; then
 755     die "Running this script from a non-checked-out distribution is risky."
 756   fi
 757
 758   check_build_prerequisites $use_git
 759
 760   if $use_gnulib || $bootstrap_sync; then
 761     prepare_GNULIB_SRCDIR
 762     if $bootstrap_sync; then
 763       upgrade_bootstrap
 764     fi
 765   fi
 766
 767   # Find sha1sum, named gsha1sum on MacPorts, shasum on Mac OS X 10.6.
 768   # Also find the compatible sha1 utility on the BSDs
 769   if test x"$SKIP_PO" = x; then
 770     find_tool SHA1SUM sha1sum gsha1sum shasum sha1
 771   fi
 772
 773   # See if we can use gnulib's git-merge-changelog merge driver.
 774   if $use_git && test -d .git && check_exists git; then
 775     if git config merge.merge-changelog.driver >/dev/null ; then
 776       :
 777     elif check_exists git-merge-changelog; then
 778       echo "$0: initializing git-merge-changelog driver"
 779       git config merge.merge-changelog.name 'GNU-style ChangeLog merge driver'
 780       git config merge.merge-changelog.driver 'git-merge-changelog %O %A %B'
 781     else
 782       echo "$0: consider installing git-merge-changelog from gnulib"
 783     fi
 784   fi
 785
 786   case $SKIP_PO in
 787   '')
 788     if test -d po; then
 789       update_po_files po $package || return
 790     fi
 791
 792     if test -d runtime-po; then
 793       update_po_files runtime-po $package-runtime || return
 794     fi;;
 795   esac
 796
 797   # ---------------------------------------------------------------------------
 798
 799   bootstrap_post_pull_hook \
 800     || die "bootstrap_post_pull_hook failed"
 801
 802   # Don't proceed if there are uninitialized submodules.  In particular,
 803   # autogen.sh will remove dangling links, which might be links into
 804   # uninitialized submodules.
 805   # But it's OK if the 'gnulib' submodule is uninitialized, as long as
 806   # GNULIB_SRCDIR is set.
 807   if $use_git; then
 808     # Uninitialized submodules are listed with an initial dash.
 809     uninitialized=`git submodule | grep '^-' | awk '{ print $2 }'`
 810     if test -n "$GNULIB_SRCDIR"; then
 811       uninitialized=`echo "$uninitialized" | grep -v '^gnulib$'`
 812     fi
 813     if test -n "$uninitialized"; then
 814       die "Some git submodules are not initialized: "`echo "$uninitialized" | tr '\n' ',' | sed -e 's|,$|.|'`" Either use option '--no-git', or run 'git submodule update --init' and bootstrap again."
 815     fi
 816   fi
 817
 818   if test -f "$medir"/autogen.sh; then
 819     echo "$0: done.  Now you can run '$medir/autogen.sh'."
 820   fi
 821 }
 822
 823 # ----------------------------- Get translations. -----------------------------
 824
 825 download_po_files() {
 826   subdir=$1
 827   domain=$2
 828   echo "$me: getting translations into $subdir for $domain..."
 829   cmd=$(printf "$po_download_command_format" "$subdir" "$domain")
 830   eval "$cmd"
 831 }
 832
 833 # Mirror .po files to $po_dir/.reference and copy only the new
 834 # or modified ones into $po_dir.  Also update $po_dir/LINGUAS.
 835 # Note po files that exist locally only are left in $po_dir but will
 836 # not be included in LINGUAS and hence will not be distributed.
 837 update_po_files() {
 838   # Directory containing primary .po files.
 839   # Overwrite them only when we're sure a .po file is new.
 840   po_dir=$1
 841   domain=$2
 842
 843   # Mirror *.po files into this dir.
 844   # Usually contains *.s1 checksum files.
 845   ref_po_dir="$po_dir/.reference"
 846
 847   test -d $ref_po_dir || mkdir $ref_po_dir || return
 848   download_po_files $ref_po_dir $domain \
 849     && ls "$ref_po_dir"/*.po 2>/dev/null |
 850       sed 's|.*/||; s|\.po$||' > "$po_dir/LINGUAS" || return
 851
 852   langs=$(cd $ref_po_dir && echo *.po | sed 's/\.po//g')
 853   test "$langs" = '*' && langs=x
 854   for po in $langs; do
 855     case $po in x) continue;; esac
 856     new_po="$ref_po_dir/$po.po"
 857     cksum_file="$ref_po_dir/$po.s1"
 858     if ! test -f "$cksum_file" ||
 859         ! test -f "$po_dir/$po.po" ||
 860         ! $SHA1SUM -c "$cksum_file" < "$new_po" > /dev/null 2>&1; then
 861       echo "$me: updated $po_dir/$po.po..."
 862       cp "$new_po" "$po_dir/$po.po" \
 863           && $SHA1SUM < "$new_po" > "$cksum_file" || return
 864     fi
 865   done
 866 }
 867
 868 # -------- Generate files automatically from existing sources.  --------------
 869
 870 autogen_usage() {
 871   cat <<EOF
 872 Usage: $me [OPTION]...
 873 Bootstrap this package from the checked-out sources.
 874
 875 Optional environment variables:
 876   GNULIB_SRCDIR            Specifies the local directory where gnulib
 877                            sources reside.  Use this if you already
 878                            have gnulib sources on your machine, and
 879                            you want to use these sources.
 880
 881 Options:
 882   --copy                   copy files instead of creating symbolic links
 883   --force                  attempt to bootstrap even if the sources seem
 884                            not to have been checked out
 885 EOF
 886   bootstrap_print_option_usage_hook
 887   cat <<EOF
 888 If the file bootstrap.conf exists in the same directory as this script, its
 889 contents are read as shell variables to configure the bootstrap.
 890
 891 For build prerequisites, environment variables like \$AUTOCONF and \$AMTAR
 892 are honored.
 893
 894 Gnulib sources are assumed to be present:
 895   * in \$GNULIB_SRCDIR, if that environment variable is set,
 896   * otherwise, in the 'gnulib' submodule, if such a submodule is configured,
 897   * otherwise, in the 'gnulib' subdirectory.
 898
 899 Running without arguments will suffice in most cases.
 900 EOF
 901 }
 902
 903
 904 version_controlled_file() {
 905   parent=$1
 906   file=$2
 907   if test -d .git; then
 908     git rm -n "$file" > /dev/null 2>&1
 909   elif test -d .svn; then
 910     svn log -r HEAD "$file" > /dev/null 2>&1
 911   elif test -d CVS; then
 912     grep -F "/${file##*/}/" "$parent/CVS/Entries" 2>/dev/null |
 913              grep '^/[^/]*/[0-9]' > /dev/null
 914   else
 915     warn_ "no version control for $file?"
 916     false
 917   fi
 918 }
 919
 920 # Strip blank and comment lines to leave significant entries.
 921 gitignore_entries() {
 922   sed '/^#/d; /^$/d' "$@"
 923 }
 924
 925 # If $STR is not already on a line by itself in $FILE, insert it at the start.
 926 # Entries are inserted at the start of the ignore list to ensure existing
 927 # entries starting with ! are not overridden.  Such entries support
 928 # whitelisting exceptions after a more generic blacklist pattern.
 929 insert_if_absent() {
 930   file=$1
 931   str=$2
 932   test -f $file || touch $file
 933   test -r $file || die "Error: failed to read ignore file: $file"
 934   duplicate_entries=$(gitignore_entries $file | sort | uniq -d)
 935   if [ "$duplicate_entries" ] ; then
 936     die "Error: Duplicate entries in $file: " $duplicate_entries
 937   fi
 938   linesold=$(gitignore_entries $file | wc -l)
 939   linesnew=$( { echo "$str"; cat $file; } | gitignore_entries | sort -u | wc -l)
 940   if [ $linesold != $linesnew ] ; then
 941     { echo "$str" | cat - $file > $file.bak && mv $file.bak $file; } \
 942       || die "insert_if_absent $file $str: failed"
 943   fi
 944 }
 945
 946 # Adjust $PATTERN for $VC_IGNORE_FILE and insert it with
 947 # insert_if_absent.
 948 insert_vc_ignore() {
 949   vc_ignore_file="$1"
 950   pattern="$2"
 951   case $vc_ignore_file in
 952   *.gitignore)
 953     # A .gitignore entry that does not start with '/' applies
 954     # recursively to subdirectories, so prepend '/' to every
 955     # .gitignore entry.
 956     pattern=$(echo "$pattern" | sed s,^,/,);;
 957   esac
 958   insert_if_absent "$vc_ignore_file" "$pattern"
 959 }
 960
 961 symlink_to_dir()
 962 {
 963   src=$1/$2
 964   dst=${3-$2}
 965
 966   test -f "$src" && {
 967
 968     # If the destination directory doesn't exist, create it.
 969     # This is required at least for "lib/uniwidth/cjk.h".
 970     dst_dir=$(dirname "$dst")
 971     if ! test -d "$dst_dir"; then
 972       mkdir -p "$dst_dir"
 973
 974       # If we've just created a directory like lib/uniwidth,
 975       # tell version control system(s) it's ignorable.
 976       # FIXME: for now, this does only one level
 977       parent=$(dirname "$dst_dir")
 978       for dot_ig in x $vc_ignore; do
 979         test $dot_ig = x && continue
 980         ig=$parent/$dot_ig
 981         insert_vc_ignore $ig "${dst_dir##*/}"
 982       done
 983     fi
 984
 985     if $copy; then
 986       {
 987         test ! -h "$dst" || {
 988           echo "$me: rm -f $dst" &&
 989           rm -f "$dst"
 990         }
 991       } &&
 992       test -f "$dst" &&
 993       cmp -s "$src" "$dst" || {
 994         echo "$me: cp -fp $src $dst" &&
 995         cp -fp "$src" "$dst"
 996       }
 997     else
 998       # Leave any existing symlink alone, if it already points to the source,
 999       # so that broken build tools that care about symlink times
1000       # aren't confused into doing unnecessary builds.  Conversely, if the
1001       # existing symlink's timestamp is older than the source, make it afresh,
1002       # so that broken tools aren't confused into skipping needed builds.  See
1003       # <https://lists.gnu.org/r/bug-gnulib/2011-05/msg00326.html>.
1004       test -h "$dst" &&
1005       src_ls=$(ls -diL "$src" 2>/dev/null) && set $src_ls && src_i=$1 &&
1006       dst_ls=$(ls -diL "$dst" 2>/dev/null) && set $dst_ls && dst_i=$1 &&
1007       test "$src_i" = "$dst_i" &&
1008       both_ls=$(ls -dt "$src" "$dst") &&
1009       test "X$both_ls" = "X$dst$nl$src" || {
1010         dot_dots=
1011         case $src in
1012         /*) ;;
1013         *)
1014           case /$dst/ in
1015           *//* | */../* | */./* | /*/*/*/*/*/)
1016              die "invalid symlink calculation: $src -> $dst";;
1017           /*/*/*/*/)    dot_dots=../../../;;
1018           /*/*/*/)      dot_dots=../../;;
1019           /*/*/)        dot_dots=../;;
1020           esac;;
1021         esac
1022
1023         echo "$me: ln -fs $dot_dots$src $dst" &&
1024         ln -fs "$dot_dots$src" "$dst"
1025       }
1026     fi
1027   }
1028 }
1029
1030 # Regenerate all autogeneratable files that are omitted from the
1031 # version control repository.  In particular, regenerate all
1032 # aclocal.m4, config.h.in, Makefile.in, configure files with new
1033 # versions of autoconf or automake.
1034 autogen()
1035 {
1036   # Ensure that CDPATH is not set.  Otherwise, the output from cd
1037   # would cause trouble in at least one use below.
1038   (unset CDPATH) >/dev/null 2>&1 && unset CDPATH
1039
1040   # Environment variables that may be set by the user.
1041   : "${AUTOPOINT=autopoint}"
1042   : "${AUTORECONF=autoreconf}"
1043
1044   if test "$vc_ignore" = auto; then
1045     vc_ignore=
1046     test -d .git && vc_ignore=.gitignore
1047     test -d CVS && vc_ignore="$vc_ignore .cvsignore"
1048   fi
1049
1050
1051   # Parse options.
1052
1053   # Whether to use copies instead of symlinks.
1054   copy=false
1055
1056   for option
1057   do
1058     case $option in
1059     --help)
1060       autogen_usage
1061       return;;
1062     --version)
1063       set -e
1064       echo "autogen.sh $scriptlibversion"
1065       echo "$copyright"
1066       return 0
1067       ;;
1068     --force)
1069       checkout_only_file=;;
1070     --copy)
1071       copy=true;;
1072     *)
1073       bootstrap_option_hook $option || die "$option: unknown option";;
1074     esac
1075   done
1076
1077   test -z "$GNULIB_SRCDIR" || test -d "$GNULIB_SRCDIR" \
1078     || die "Error: \$GNULIB_SRCDIR environment variable or --gnulib-srcdir option is specified, but does not denote a directory"
1079
1080   if test -n "$checkout_only_file" && test ! -r "$checkout_only_file"; then
1081     die "Running this script from a non-checked-out distribution is risky."
1082   fi
1083
1084   if $use_gnulib; then
1085     if test -z "$GNULIB_SRCDIR"; then
1086       gnulib_path=$(test -f .gitmodules && git config --file .gitmodules submodule.gnulib.path)
1087       test -z "$gnulib_path" && gnulib_path=gnulib
1088       GNULIB_SRCDIR=$gnulib_path
1089     fi
1090   fi
1091
1092   # Die if there is no AC_CONFIG_AUX_DIR($build_aux) line in configure.ac.
1093   found_aux_dir=no
1094   grep '^[       ]*AC_CONFIG_AUX_DIR(\['"$build_aux"'])' configure.ac \
1095       >/dev/null && found_aux_dir=yes
1096   grep '^[       ]*AC_CONFIG_AUX_DIR('"$build_aux"')' configure.ac \
1097       >/dev/null && found_aux_dir=yes
1098   test $found_aux_dir = yes \
1099     || die "configure.ac lacks 'AC_CONFIG_AUX_DIR([$build_aux])'; add it"
1100
1101   # If $build_aux doesn't exist, create it now, otherwise some bits
1102   # below will malfunction.  If creating it, also mark it as ignored.
1103   if test ! -d $build_aux; then
1104     mkdir $build_aux
1105     for dot_ig in x $vc_ignore; do
1106       test $dot_ig = x && continue
1107       insert_vc_ignore $dot_ig $build_aux
1108     done
1109   fi
1110
1111   check_build_prerequisites false
1112
1113   use_libtool=0
1114   # We'd like to use grep -E, to see if any of LT_INIT,
1115   # AC_PROG_LIBTOOL, AM_PROG_LIBTOOL is used in configure.ac,
1116   # but that's not portable enough (e.g., for Solaris).
1117   grep '^[       ]*A[CM]_PROG_LIBTOOL' configure.ac >/dev/null \
1118     && use_libtool=1
1119   grep '^[       ]*LT_INIT' configure.ac >/dev/null \
1120     && use_libtool=1
1121   if test $use_libtool = 1; then
1122     find_tool LIBTOOLIZE glibtoolize libtoolize
1123   fi
1124
1125   if $use_gnulib; then
1126     gnulib_tool=$GNULIB_SRCDIR/gnulib-tool
1127     <$gnulib_tool || return
1128   fi
1129
1130   # NOTE: we have to be careful to run both autopoint and libtoolize
1131   # before gnulib-tool, since gnulib-tool is likely to provide newer
1132   # versions of files "installed" by these two programs.
1133   # Then, *after* gnulib-tool (see below), we have to be careful to
1134   # run autoreconf in such a way that it does not run either of these
1135   # two just-pre-run programs.
1136
1137   # Import from gettext.
1138   with_gettext=yes
1139   grep '^[       ]*AM_GNU_GETTEXT_VERSION(' configure.ac >/dev/null || \
1140       with_gettext=no
1141
1142   if test $with_gettext = yes || test $use_libtool = 1; then
1143
1144     tempbase=.bootstrap$$
1145     trap "rm -f $tempbase.0 $tempbase.1" HUP INT PIPE TERM
1146
1147     > $tempbase.0 > $tempbase.1 &&
1148     find . ! -type d -print | sort > $tempbase.0 || return
1149
1150     if test $with_gettext = yes; then
1151       # Released autopoint has the tendency to install macros that have been
1152       # obsoleted in current gnulib, so run this before gnulib-tool.
1153       echo "$0: $AUTOPOINT --force"
1154       $AUTOPOINT --force || return
1155     fi
1156
1157     # Autoreconf runs aclocal before libtoolize, which causes spurious
1158     # warnings if the initial aclocal is confused by the libtoolized
1159     # (or worse out-of-date) macro directory.
1160     # libtoolize 1.9b added the --install option; but we support back
1161     # to libtoolize 1.5.22, where the install action was default.
1162     if test $use_libtool = 1; then
1163       install=
1164       case $($LIBTOOLIZE --help) in
1165         *--install*) install=--install ;;
1166       esac
1167       echo "running: $LIBTOOLIZE $install --copy"
1168       $LIBTOOLIZE $install --copy
1169     fi
1170
1171     find . ! -type d -print | sort >$tempbase.1
1172     old_IFS=$IFS
1173     IFS=$nl
1174     for file in $(comm -13 $tempbase.0 $tempbase.1); do
1175       IFS=$old_IFS
1176       parent=${file%/*}
1177       version_controlled_file "$parent" "$file" || {
1178         for dot_ig in x $vc_ignore; do
1179           test $dot_ig = x && continue
1180           ig=$parent/$dot_ig
1181           insert_vc_ignore "$ig" "${file##*/}"
1182         done
1183       }
1184     done
1185     IFS=$old_IFS
1186
1187     rm -f $tempbase.0 $tempbase.1
1188     trap - HUP INT PIPE TERM
1189   fi
1190
1191   # Import from gnulib.
1192
1193   if $use_gnulib; then
1194     gnulib_tool_options="\
1195      --no-changelog\
1196      --aux-dir=$build_aux\
1197      --doc-base=$doc_base\
1198      --lib=$gnulib_name\
1199      --m4-base=$m4_base/\
1200      --source-base=$source_base/\
1201      --tests-base=$tests_base\
1202      --local-dir=$local_gl_dir\
1203      $gnulib_tool_option_extras\
1204     "
1205     if test $use_libtool = 1; then
1206       case "$gnulib_tool_options " in
1207         *' --libtool '*) ;;
1208         *) gnulib_tool_options="$gnulib_tool_options --libtool" ;;
1209       esac
1210     fi
1211     echo "$0: $gnulib_tool $gnulib_tool_options --import ..."
1212     $gnulib_tool $gnulib_tool_options --import $gnulib_modules \
1213       || die "gnulib-tool failed"
1214
1215     for file in $gnulib_files; do
1216       symlink_to_dir "$GNULIB_SRCDIR" $file \
1217         || die "failed to symlink $file"
1218     done
1219   fi
1220
1221   bootstrap_post_import_hook \
1222     || die "bootstrap_post_import_hook failed"
1223
1224   # Remove any dangling symlink matching "*.m4" or "*.[ch]" in some
1225   # gnulib-populated directories.  Such .m4 files would cause aclocal to fail.
1226   # The following requires GNU find 4.2.3 or newer.  Considering the usual
1227   # portability constraints of this script, that may seem a very demanding
1228   # requirement, but it should be ok.  Ignore any failure, which is fine,
1229   # since this is only a convenience to help developers avoid the relatively
1230   # unusual case in which a symlinked-to .m4 file is git-removed from gnulib
1231   # between successive runs of this script.
1232   find "$m4_base" "$source_base" \
1233     -depth \( -name '*.m4' -o -name '*.[ch]' \) \
1234     -type l -xtype l -delete > /dev/null 2>&1
1235
1236   # Invoke autoreconf with --force --install to ensure upgrades of tools
1237   # such as ylwrap.
1238   AUTORECONFFLAGS="--verbose --install --force -I $m4_base $ACLOCAL_FLAGS"
1239
1240   # Some systems (RHEL 5) are using ancient autotools, for which the
1241   # --no-recursive option had not been invented.  Detect that lack and
1242   # omit the option when it's not supported.  FIXME in 2017: remove this
1243   # hack when RHEL 5 autotools are updated, or when they become irrelevant.
1244   case $($AUTORECONF --help) in
1245     *--no-recursive*) AUTORECONFFLAGS="$AUTORECONFFLAGS --no-recursive";;
1246   esac
1247
1248   # Tell autoreconf not to invoke autopoint or libtoolize; they were run above.
1249   echo "running: AUTOPOINT=true LIBTOOLIZE=true $AUTORECONF $AUTORECONFFLAGS"
1250   AUTOPOINT=true LIBTOOLIZE=true $AUTORECONF $AUTORECONFFLAGS \
1251     || die "autoreconf failed"
1252
1253   # Get some extra files from gnulib, overriding existing files.
1254   for file in $gnulib_extra_files; do
1255     case $file in
1256       */INSTALL) dst=INSTALL;;
1257       build-aux/*) dst=$build_aux/${file#build-aux/};;
1258       *) dst=$file;;
1259     esac
1260     symlink_to_dir "$GNULIB_SRCDIR" $file $dst \
1261       || die "failed to symlink $file"
1262   done
1263
1264   if test $with_gettext = yes; then
1265     # Create gettext configuration.
1266     echo "$0: Creating po/Makevars from po/Makevars.template ..."
1267     rm -f po/Makevars
1268     sed '
1269       /^EXTRA_LOCALE_CATEGORIES *=/s/=.*/= '"$EXTRA_LOCALE_CATEGORIES"'/
1270       /^COPYRIGHT_HOLDER *=/s/=.*/= '"$COPYRIGHT_HOLDER"'/
1271       /^MSGID_BUGS_ADDRESS *=/s|=.*|= '"$MSGID_BUGS_ADDRESS"'|
1272       /^XGETTEXT_OPTIONS *=/{
1273         s/$/ \\/
1274         a\
1275             '"$XGETTEXT_OPTIONS"' $${end_of_xgettext_options+}
1276       }
1277     ' po/Makevars.template >po/Makevars \
1278       || die 'cannot generate po/Makevars'
1279
1280     # If the 'gettext' module is in use, grab the latest Makefile.in.in.
1281     # If only the 'gettext-h' module is in use, assume autopoint already
1282     # put the correct version of this file into place.
1283     case $gnulib_modules in
1284       *gettext-h*) ;;
1285       *gettext*)
1286         cp $GNULIB_SRCDIR/build-aux/po/Makefile.in.in po/Makefile.in.in \
1287           || die "cannot create po/Makefile.in.in"
1288         ;;
1289     esac
1290
1291     if test -d runtime-po; then
1292       # Similarly for runtime-po/Makevars, but not quite the same.
1293       rm -f runtime-po/Makevars
1294       sed '
1295         /^DOMAIN *=.*/s/=.*/= '"$package"'-runtime/
1296         /^subdir *=.*/s/=.*/= runtime-po/
1297         /^MSGID_BUGS_ADDRESS *=/s/=.*/= bug-'"$package"'@gnu.org/
1298         /^XGETTEXT_OPTIONS *=/{
1299           s/$/ \\/
1300           a\
1301               '"$XGETTEXT_OPTIONS_RUNTIME"' $${end_of_xgettext_options+}
1302         }
1303       ' po/Makevars.template >runtime-po/Makevars \
1304       || die 'cannot generate runtime-po/Makevars'
1305
1306       # Copy identical files from po to runtime-po.
1307       (cd po && cp -p Makefile.in.in *-quot *.header *.sed *.sin ../runtime-po)
1308     fi
1309   fi
1310
1311   bootstrap_epilogue
1312
1313   echo "$0: done.  Now you can run './configure'."
1314 }
1315
1316 # ----------------------------------------------------------------------------
1317
1318 # Local Variables:
1319 # eval: (add-hook 'before-save-hook 'time-stamp)
1320 # time-stamp-start: "scriptlibversion="
1321 # time-stamp-format: "%:y-%02m-%02d.%02H"
1322 # time-stamp-time-zone: "UTC0"
1323 # time-stamp-end: "; # UTC"
1324 # End:
1325
1326 usage() {
1327   cat <<EOF
1328 Usage: $me [OPTION]...
1329 Bootstrap this package from the checked-out sources.
1330
1331 Optional environment variables:
1332   GNULIB_SRCDIR            Specifies the local directory where gnulib
1333                            sources reside.  Use this if you already
1334                            have gnulib sources on your machine, and
1335                            do not want to waste your bandwidth downloading
1336                            them again.
1337   GNULIB_URL               Cloneable URL of the gnulib repository.
1338
1339 Options:
1340
1341   --pull                   Do phase 1: pull files from network
1342   --gen                    Do phase 2: generate from local files.
1343                            (The default is to do both phases.)
1344
1345   --gnulib-srcdir=DIRNAME  specify the local directory where gnulib
1346                            sources reside.  Use this if you already
1347                            have gnulib sources on your machine, and
1348                            you want to use these sources.  Defaults
1349                            to \$GNULIB_SRCDIR
1350   --gnulib-refdir=DIRNAME  specify the local directory where a gnulib
1351                            repository (with a .git subdirectory) resides.
1352                            Use this if you already have gnulib sources
1353                            and history on your machine, and do not want
1354                            to waste your bandwidth downloading them again.
1355                            Defaults to \$GNULIB_REFDIR
1356
1357   --bootstrap-sync         if this bootstrap script is not identical to
1358                            the version in the local gnulib sources,
1359                            update this script, and then restart it with
1360                            /bin/sh or the shell \$CONFIG_SHELL
1361   --no-bootstrap-sync      do not check whether bootstrap is out of sync
1362
1363   --copy                   copy files instead of creating symbolic links
1364   --force                  attempt to bootstrap even if the sources seem
1365                            not to have been checked out
1366   --no-git                 do not use git to update gnulib.  Requires that
1367                            \$GNULIB_SRCDIR or the --gnulib-srcdir option
1368                            points to a gnulib repository with the correct
1369                            revision
1370   --skip-po                do not download po files
1371 EOF
1372   bootstrap_print_option_usage_hook
1373   cat <<EOF
1374 If the file bootstrap.conf exists in the same directory as this script, its
1375 contents are read as shell variables to configure the bootstrap.
1376
1377 For build prerequisites, environment variables like \$AUTOCONF and \$AMTAR
1378 are honored.
1379
1380 Gnulib sources can be fetched in various ways:
1381
1382  * If the environment variable GNULIB_SRCDIR is set (either as an
1383    environment variable or via the --gnulib-srcdir option), then sources
1384    are fetched from that local directory.  If it is a git repository and
1385    the configuration variable GNULIB_REVISION is set in bootstrap.conf,
1386    then that revision is checked out.
1387
1388  * Otherwise, if this package is in a git repository with a 'gnulib'
1389    submodule configured, then that submodule is initialized and updated
1390    and sources are fetched from there.  If GNULIB_REFDIR is set (either
1391    as an environment variable or via the --gnulib-refdir option) and is
1392    a git repository, then it is used as a reference.
1393
1394  * Otherwise, if the 'gnulib' directory does not exist, Gnulib sources
1395    are cloned into that directory using git from \$GNULIB_URL, defaulting
1396    to $default_gnulib_url.
1397    If the configuration variable GNULIB_REVISION is set in bootstrap.conf,
1398    then that revision is checked out.
1399
1400  * Otherwise, the existing Gnulib sources in the 'gnulib' directory are
1401    used.  If it is a git repository and the configuration variable
1402    GNULIB_REVISION is set in bootstrap.conf, then that revision is
1403    checked out.
1404
1405 If you maintain a package and want to pin a particular revision of the
1406 Gnulib sources that has been tested with your package, then there are
1407 two possible approaches: either configure a 'gnulib' submodule with the
1408 appropriate revision, or set GNULIB_REVISION (and if necessary
1409 GNULIB_URL) in bootstrap.conf.
1410
1411 Running without arguments will suffice in most cases.
1412 EOF
1413 }
1414
1415 # Parse options.
1416
1417 # Whether to pull and generate.
1418 pull=false
1419 gen=false
1420
1421 # Whether to use copies instead of symlinks.
1422 copy=false
1423
1424 # Use git to update gnulib sources
1425 use_git=true
1426
1427 for option
1428 do
1429   case $option in
1430   --help)
1431     usage
1432     exit;;
1433   --version)
1434     set -e
1435     echo "bootstrap $scriptversion lib $scriptlibversion"
1436     echo "$copyright"
1437     exit 0
1438     ;;
1439   --pull)
1440     pull=true;;
1441   --gen)
1442     gen=true;;
1443   --gnulib-srcdir=*)
1444     GNULIB_SRCDIR=${option#--gnulib-srcdir=};;
1445   --gnulib-refdir=*)
1446     GNULIB_REFDIR=${option#--gnulib-refdir=};;
1447   --skip-po)
1448     SKIP_PO=t;;
1449   --force)
1450     checkout_only_file=;;
1451   --copy)
1452     copy=true;;
1453   --bootstrap-sync)
1454     bootstrap_sync=true;;
1455   --no-bootstrap-sync)
1456     bootstrap_sync=false;;
1457   --no-git)
1458     use_git=false;;
1459   *)
1460     bootstrap_option_hook $option || die "$option: unknown option";;
1461   esac
1462 done
1463
1464 # Default is to do both.
1465 $pull || $gen || pull=true gen=true
1466
1467 $use_git || test -n "$GNULIB_SRCDIR" \
1468   || die "Error: --no-git requires \$GNULIB_SRCDIR environment variable or --gnulib-srcdir option"
1469 test -z "$GNULIB_SRCDIR" || test -d "$GNULIB_SRCDIR" \
1470   || die "Error: \$GNULIB_SRCDIR environment variable or --gnulib-srcdir option is specified, but does not denote a directory"
1471
1472 if test -n "$checkout_only_file" && test ! -r "$checkout_only_file"; then
1473   die "Bootstrapping from a non-checked-out distribution is risky."
1474 fi
1475
1476 check_build_prerequisites $use_git
1477
1478 if $bootstrap_sync; then
1479   prepare_GNULIB_SRCDIR
1480   upgrade_bootstrap
1481   # Since we have now upgraded if needed, no need to try it a second time below.
1482   bootstrap_sync=false
1483 fi
1484
1485 echo "$0: Bootstrapping from checked-out $package sources..."
1486
1487 # Pass GNULIB_SRCDIR and GNULIB_REFDIR to any subsidiary commands that care.
1488 export GNULIB_SRCDIR
1489 export GNULIB_REFDIR
1490
1491 if $pull && { $use_git || test -z "$SKIP_PO"; }; then
1492   autopull \
1493       `if $bootstrap_sync; then echo ' --bootstrap-sync'; else echo ' --no-bootstrap-sync'; fi` \
1494       `if test -z "$checkout_only_file"; then echo ' --force'; fi` \
1495       `if ! $use_git; then echo ' --no-git'; fi` \
1496       `if test -n "$SKIP_PO"; then echo ' --skip-po'; fi` \
1497     || die "could not fetch auxiliary files"
1498 fi
1499
1500 if $gen; then
1501  autogen \
1502     `if $copy; then echo ' --copy'; fi` \
1503     `if test -z "$checkout_only_file"; then echo ' --force'; fi` \
1504   || die "could not generate auxiliary files"
1505 fi
1506
1507 # ----------------------------------------------------------------------------
1508
1509 # Local Variables:
1510 # eval: (add-hook 'before-save-hook 'time-stamp)
1511 # time-stamp-start: "scriptversion="
1512 # time-stamp-format: "%:y-%02m-%02d.%02H"
1513 # time-stamp-time-zone: "UTC0"
1514 # time-stamp-end: "; # UTC"
1515 # End: