bootstrap

   1 #! /bin/sh
   2
   3 # Bootstrap this package from checked-out sources.
   4
   5 # Copyright (C) 2003-2009 Free Software Foundation, Inc.
   6
   7 # This program is free software: you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation, either version 3 of the License, or
  10 # (at your option) any later version.
  11
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 # Written by Paul Eggert.
  21
  22 nl='
  23 '
  24
  25 # Ensure file names are sorted consistently across platforms.
  26 LC_ALL=C
  27 export LC_ALL
  28
  29 local_gl_dir=gl
  30
  31 # Temporary directory names.
  32 bt='._bootmp'
  33 bt_regex=`echo "$bt"| sed 's/\./[.]/g'`
  34 bt2=${bt}2
  35
  36 usage() {
  37   echo >&2 "\
  38 Usage: $0 [OPTION]...
  39 Bootstrap this package from the checked-out sources.
  40
  41 Options:
  42  --gnulib-srcdir=DIRNAME  Specify the local directory where gnulib
  43                           sources reside.  Use this if you already
  44                           have gnulib sources on your machine, and
  45                           do not want to waste your bandwidth downloading
  46                           them again.
  47  --copy                   Copy files instead of creating symbolic links.
  48  --force                  Attempt to bootstrap even if the sources seem
  49                           not to have been checked out.
  50  --skip-po                Do not download po files.
  51
  52 If the file $0.conf exists in the same directory as this script, its
  53 contents are read as shell variables to configure the bootstrap.
  54
  55 For build prerequisites, environment variables like \$AUTOCONF and \$AMTAR
  56 are honored.
  57
  58 Running without arguments will suffice in most cases.
  59 "
  60 }
  61
  62 # Configuration.
  63
  64 # Name of the Makefile.am
  65 gnulib_mk=gnulib.mk
  66
  67 # List of gnulib modules needed.
  68 gnulib_modules=
  69
  70 # Any gnulib files needed that are not in modules.
  71 gnulib_files=
  72
  73 # The command to download all .po files for a specified domain into
  74 # a specified directory.  Fill in the first %s is the domain name, and
  75 # the second with the destination directory.  Use rsync's -L and -r
  76 # options because the latest/%s directory and the .po files within are
  77 # all symlinks.
  78 po_download_command_format=\
  79 "rsync -Lrtvz 'translationproject.org::tp/latest/%s/' '%s'"
  80
  81 extract_package_name='
  82   /^AC_INIT(/{
  83      /.*,.*,.*, */{
  84        s///
  85        s/[][]//g
  86        s/)$//
  87        p
  88        q
  89      }
  90      s/AC_INIT(\[*//
  91      s/]*,.*//
  92      s/^GNU //
  93      y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/
  94      s/[^A-Za-z0-9_]/-/g
  95      p
  96   }
  97 '
  98 package=`sed -n "$extract_package_name" configure.ac` || exit
  99 gnulib_name=lib$package
 100
 101 build_aux=build-aux
 102 source_base=lib
 103 m4_base=m4
 104 doc_base=doc
 105 tests_base=tests
 106
 107 # Extra files from gnulib, which override files from other sources.
 108 gnulib_extra_files="
 109         $build_aux/install-sh
 110         $build_aux/missing
 111         $build_aux/mdate-sh
 112         $build_aux/texinfo.tex
 113         $build_aux/depcomp
 114         $build_aux/config.guess
 115         $build_aux/config.sub
 116         doc/INSTALL
 117 "
 118
 119 # Additional gnulib-tool options to use.  Use "\newline" to break lines.
 120 gnulib_tool_option_extras=
 121
 122 # Other locale categories that need message catalogs.
 123 EXTRA_LOCALE_CATEGORIES=
 124
 125 # Additional xgettext options to use.  Use "\\\newline" to break lines.
 126 XGETTEXT_OPTIONS='\\\
 127  --flag=_:1:pass-c-format\\\
 128  --flag=N_:1:pass-c-format\\\
 129  --flag=error:3:c-format --flag=error_at_line:5:c-format\\\
 130 '
 131
 132 # Package bug report address for gettext files
 133 MSGID_BUGS_ADDRESS=bug-$package@gnu.org
 134
 135 # Files we don't want to import.
 136 excluded_files=
 137
 138 # File that should exist in the top directory of a checked out hierarchy,
 139 # but not in a distribution tarball.
 140 checkout_only_file=README-hacking
 141
 142 # Whether to use copies instead of symlinks.
 143 copy=false
 144
 145 # Set this to '.cvsignore .gitignore' in bootstrap.conf if you want
 146 # those files to be generated in directories like lib/, m4/, and po/.
 147 # Or set it to 'auto' to make this script select which to use based
 148 # on which version control system (if any) is used in the source directory.
 149 vc_ignore=auto
 150
 151 # Override the default configuration, if necessary.
 152 # Make sure that bootstrap.conf is sourced from the current directory
 153 # if we were invoked as "sh bootstrap".
 154 case "$0" in
 155   */*) test -r "$0.conf" && . "$0.conf" ;;
 156   *) test -r "$0.conf" && . ./"$0.conf" ;;
 157 esac
 158
 159
 160 if test "$vc_ignore" = auto; then
 161   vc_ignore=
 162   test -d .git && vc_ignore=.gitignore
 163   test -d CVS && vc_ignore="$vc_ignore .cvsignore"
 164 fi
 165
 166 # Translate configuration into internal form.
 167
 168 # Parse options.
 169
 170 for option
 171 do
 172   case $option in
 173   --help)
 174     usage
 175     exit;;
 176   --gnulib-srcdir=*)
 177     GNULIB_SRCDIR=`expr "X$option" : 'X--gnulib-srcdir=\(.*\)'`;;
 178   --skip-po)
 179     SKIP_PO=t;;
 180   --force)
 181     checkout_only_file=;;
 182   --copy)
 183     copy=true;;
 184   *)
 185     echo >&2 "$0: $option: unknown option"
 186     exit 1;;
 187   esac
 188 done
 189
 190 if test -n "$checkout_only_file" && test ! -r "$checkout_only_file"; then
 191   echo "$0: Bootstrapping from a non-checked-out distribution is risky." >&2
 192   exit 1
 193 fi
 194
 195 # If $STR is not already on a line by itself in $FILE, insert it,
 196 # sorting the new contents of the file and replacing $FILE with the result.
 197 insert_sorted_if_absent() {
 198   file=$1
 199   str=$2
 200   test -f $file || touch $file
 201   echo "$str" | sort -u - $file | cmp - $file > /dev/null \
 202     || echo "$str" | sort -u - $file -o $file \
 203     || exit 1
 204 }
 205
 206 # Die if there is no AC_CONFIG_AUX_DIR($build_aux) line in configure.ac.
 207 found_aux_dir=no
 208 grep '^[         ]*AC_CONFIG_AUX_DIR(\['"$build_aux"'\])' configure.ac \
 209     >/dev/null && found_aux_dir=yes
 210 grep '^[         ]*AC_CONFIG_AUX_DIR('"$build_aux"')' configure.ac \
 211     >/dev/null && found_aux_dir=yes
 212 if test $found_aux_dir = no; then
 213   echo "$0: expected line not found in configure.ac. Add the following:" >&2
 214   echo "  AC_CONFIG_AUX_DIR([$build_aux])" >&2
 215   exit 1
 216 fi
 217
 218 # If $build_aux doesn't exist, create it now, otherwise some bits
 219 # below will malfunction.  If creating it, also mark it as ignored.
 220 if test ! -d $build_aux; then
 221   mkdir $build_aux
 222   for dot_ig in x $vc_ignore; do
 223     test $dot_ig = x && continue
 224     insert_sorted_if_absent $dot_ig $build_aux
 225   done
 226 fi
 227
 228 # Note this deviates from the version comparison in automake
 229 # in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a
 230 # but this should suffice as we won't be specifying old
 231 # version formats or redundant trailing .0 in bootstrap.conf.
 232 # If we did want full compatibility then we should probably
 233 # use m4_version_compare from autoconf.
 234 sort_ver() { # sort -V is not generally available
 235   ver1="$1"
 236   ver2="$2"
 237
 238   # split on '.' and compare each component
 239   i=1
 240   while : ; do
 241     p1=$(echo "$ver1" | cut -d. -f$i)
 242     p2=$(echo "$ver2" | cut -d. -f$i)
 243     if [ ! "$p1" ]; then
 244       echo "$1 $2"
 245       break
 246     elif [ ! "$p2" ]; then
 247       echo "$2 $1"
 248       break
 249     elif [ ! "$p1" = "$p2" ]; then
 250       if [ "$p1" -gt "$p2" ] 2>/dev/null; then # numeric comparison
 251         echo "$2 $1"
 252       elif [ "$p2" -gt "$p1" ] 2>/dev/null; then # numeric comparison
 253         echo "$1 $2"
 254       else # numeric, then lexicographic comparison
 255         lp=$(printf "$p1\n$p2\n" | LANG=C sort -n | tail -n1)
 256         if [ "$lp" = "$p2" ]; then
 257           echo "$1 $2"
 258         else
 259           echo "$2 $1"
 260         fi
 261       fi
 262       break
 263     fi
 264     i=$(($i+1))
 265   done
 266 }
 267
 268 get_version() {
 269   app=$1
 270
 271   $app --version >/dev/null 2>&1 || return 1
 272
 273   $app --version 2>&1 |
 274   sed -n 's/[^0-9.]*\([0-9]\{1,\}\.[.a-z0-9-]*\).*/\1/p
 275           t done
 276           d
 277           :done
 278           q'
 279 }
 280
 281 check_versions() {
 282   ret=0
 283
 284   while read app req_ver; do
 285     # Honor $APP variables ($TAR, $AUTOCONF, etc.)
 286     appvar=`echo $app | tr '[a-z]' '[A-Z]'`
 287     test "$appvar" = TAR && appvar=AMTAR
 288     eval "app=\${$appvar-$app}"
 289     inst_ver=$(get_version $app)
 290     if [ ! "$inst_ver" ]; then
 291       echo "Error: '$app' not found" >&2
 292       ret=1
 293     elif [ ! "$req_ver" = "-" ]; then
 294       latest_ver=$(sort_ver $req_ver $inst_ver | cut -d' ' -f2)
 295       if [ ! "$latest_ver" = "$inst_ver" ]; then
 296         echo "Error: '$app' version == $inst_ver is too old" >&2
 297         echo "       '$app' version >= $req_ver is required" >&2
 298         ret=1
 299       fi
 300     fi
 301   done
 302
 303   return $ret
 304 }
 305
 306 print_versions() {
 307   echo "Program    Min_version"
 308   echo "----------------------"
 309   printf "$buildreq"
 310   echo "----------------------"
 311   # can't depend on column -t
 312 }
 313
 314 if ! printf "$buildreq" | check_versions; then
 315   test -f README-prereq &&
 316   echo "Please see README-prereq for notes on obtaining these prerequisite programs:" >&2
 317   echo
 318   print_versions
 319   exit 1
 320 fi
 321
 322 echo "$0: Bootstrapping from checked-out $package sources..."
 323
 324 # See if we can use gnulib's git-merge-changelog merge driver.
 325 if test -d .git && (git --version) >/dev/null 2>/dev/null ; then
 326   if git config merge.merge-changelog.driver >/dev/null ; then
 327     :
 328   elif (git-merge-changelog --version) >/dev/null 2>/dev/null ; then
 329     echo "initializing git-merge-changelog driver"
 330     git config merge.merge-changelog.name 'GNU-style ChangeLog merge driver'
 331     git config merge.merge-changelog.driver 'git-merge-changelog %O %A %B'
 332   else
 333     echo "consider installing git-merge-changelog from gnulib"
 334   fi
 335 fi
 336
 337
 338 cleanup_gnulib() {
 339   status=$?
 340   rm -fr gnulib
 341   exit $status
 342 }
 343
 344 git_modules_config () {
 345   GIT_CONFIG=.gitmodules git config "$@"
 346 }
 347
 348 # Get gnulib files.
 349
 350 case ${GNULIB_SRCDIR--} in
 351 -)
 352   if git_modules_config submodule.gnulib.url >/dev/null; then
 353     echo "$0: getting gnulib files..."
 354     git submodule init || exit $?
 355     git submodule update || exit $?
 356
 357   elif [ ! -d gnulib ]; then
 358     echo "$0: getting gnulib files..."
 359
 360     trap cleanup_gnulib 1 2 13 15
 361
 362     git clone --help|grep depth > /dev/null && shallow='--depth 2' || shallow=
 363     git clone $shallow git://git.sv.gnu.org/gnulib ||
 364       cleanup_gnulib
 365
 366     trap - 1 2 13 15
 367   fi
 368   GNULIB_SRCDIR=gnulib
 369   ;;
 370 *)
 371   # Redirect the gnulib submodule to the directory on the command line
 372   # if possible.
 373   if test -d "$GNULIB_SRCDIR"/.git && \
 374         git_modules_config submodule.gnulib.url >/dev/null; then
 375     git submodule init
 376     GNULIB_SRCDIR=`cd $GNULIB_SRCDIR && pwd`
 377     git config --replace-all submodule.gnulib.url $GNULIB_SRCDIR
 378     echo "$0: getting gnulib files..."
 379     git submodule update || exit $?
 380     GNULIB_SRCDIR=gnulib
 381   fi
 382   ;;
 383 esac
 384
 385 gnulib_tool=$GNULIB_SRCDIR/gnulib-tool
 386 <$gnulib_tool || exit
 387
 388 # Get translations.
 389
 390 download_po_files() {
 391   subdir=$1
 392   domain=$2
 393   echo "$0: getting translations into $subdir for $domain..."
 394   cmd=`printf "$po_download_command_format" "$domain" "$subdir"`
 395   eval "$cmd"
 396 }
 397
 398 # Download .po files to $po_dir/.reference and copy only the new
 399 # or modified ones into $po_dir.  Also update $po_dir/LINGUAS.
 400 update_po_files() {
 401   # Directory containing primary .po files.
 402   # Overwrite them only when we're sure a .po file is new.
 403   po_dir=$1
 404   domain=$2
 405
 406   # Download *.po files into this dir.
 407   # Usually contains *.s1 checksum files.
 408   ref_po_dir="$po_dir/.reference"
 409
 410   test -d $ref_po_dir || mkdir $ref_po_dir || return
 411   download_po_files $ref_po_dir $domain \
 412     && ls "$ref_po_dir"/*.po 2>/dev/null |
 413       sed 's|.*/||; s|\.po$||' > "$po_dir/LINGUAS"
 414
 415   langs=`cd $ref_po_dir && echo *.po|sed 's/\.po//g'`
 416   test "$langs" = '*' && langs=x
 417   for po in $langs; do
 418     case $po in x) continue;; esac
 419     new_po="$ref_po_dir/$po.po"
 420     cksum_file="$ref_po_dir/$po.s1"
 421     if ! test -f "$cksum_file" ||
 422         ! test -f "$po_dir/$po.po" ||
 423         ! ${SHA1SUM-sha1sum} -c --status "$cksum_file" < "$new_po" > /dev/null; then
 424       echo "updated $po_dir/$po.po..."
 425       cp "$new_po" "$po_dir/$po.po" && ${SHA1SUM-sha1sum} < "$new_po" > "$cksum_file"
 426     fi
 427   done
 428 }
 429
 430 case $SKIP_PO in
 431 '')
 432   if test -d po; then
 433     update_po_files po $package || exit
 434   fi
 435
 436   if test -d runtime-po; then
 437     update_po_files runtime-po $package-runtime || exit
 438   fi;;
 439 esac
 440
 441 symlink_to_dir()
 442 {
 443   src=$1/$2
 444   dst=${3-$2}
 445
 446   test -f "$src" && {
 447
 448     # If the destination directory doesn't exist, create it.
 449     # This is required at least for "lib/uniwidth/cjk.h".
 450     dst_dir=`dirname "$dst"`
 451     if ! test -d "$dst_dir"; then
 452       mkdir -p "$dst_dir"
 453
 454       # If we've just created a directory like lib/uniwidth,
 455       # tell version control system(s) it's ignorable.
 456       # FIXME: for now, this does only one level
 457       parent=`dirname "$dst_dir"`
 458       for dot_ig in x $vc_ignore; do
 459         test $dot_ig = x && continue
 460         ig=$parent/$dot_ig
 461         insert_sorted_if_absent $ig `echo "$dst_dir"|sed 's,.*/,,'`
 462       done
 463     fi
 464
 465     if $copy; then
 466       {
 467         test ! -h "$dst" || {
 468           echo "$0: rm -f $dst" &&
 469           rm -f "$dst"
 470         }
 471       } &&
 472       test -f "$dst" &&
 473       cmp -s "$src" "$dst" || {
 474         echo "$0: cp -fp $src $dst" &&
 475         cp -fp "$src" "$dst"
 476       }
 477     else
 478       test -h "$dst" &&
 479       src_ls=`ls -diL "$src" 2>/dev/null` && set $src_ls && src_i=$1 &&
 480       dst_ls=`ls -diL "$dst" 2>/dev/null` && set $dst_ls && dst_i=$1 &&
 481       test "$src_i" = "$dst_i" || {
 482         dot_dots=
 483         case $src in
 484         /*) ;;
 485         *)
 486           case /$dst/ in
 487           *//* | */../* | */./* | /*/*/*/*/*/)
 488              echo >&2 "$0: invalid symlink calculation: $src -> $dst"
 489              exit 1;;
 490           /*/*/*/*/)    dot_dots=../../../;;
 491           /*/*/*/)      dot_dots=../../;;
 492           /*/*/)        dot_dots=../;;
 493           esac;;
 494         esac
 495
 496         echo "$0: ln -fs $dot_dots$src $dst" &&
 497         ln -fs "$dot_dots$src" "$dst"
 498       }
 499     fi
 500   }
 501 }
 502
 503 cp_mark_as_generated()
 504 {
 505   cp_src=$1
 506   cp_dst=$2
 507
 508   if cmp -s "$cp_src" "$GNULIB_SRCDIR/$cp_dst"; then
 509     symlink_to_dir "$GNULIB_SRCDIR" "$cp_dst"
 510   elif cmp -s "$cp_src" "$local_gl_dir/$cp_dst"; then
 511     symlink_to_dir $local_gl_dir "$cp_dst"
 512   else
 513     case $cp_dst in
 514       *.[ch])             c1='/* '; c2=' */';;
 515       *.texi)             c1='@c '; c2=     ;;
 516       *.m4|*/Make*|Make*) c1='# ' ; c2=     ;;
 517       *)                  c1=     ; c2=     ;;
 518     esac
 519
 520     # If the destination directory doesn't exist, create it.
 521     # This is required at least for "lib/uniwidth/cjk.h".
 522     dst_dir=`dirname "$cp_dst"`
 523     test -d "$dst_dir" || mkdir -p "$dst_dir"
 524
 525     if test -z "$c1"; then
 526       cmp -s "$cp_src" "$cp_dst" || {
 527         # Copy the file first to get proper permissions if it
 528         # doesn't already exist.  Then overwrite the copy.
 529         echo "$0: cp -f $cp_src $cp_dst" &&
 530         rm -f "$cp_dst" &&
 531         cp "$cp_src" "$cp_dst-t" &&
 532         sed "s!$bt_regex/!!g" "$cp_src" > "$cp_dst-t" &&
 533         mv -f "$cp_dst-t" "$cp_dst"
 534       }
 535     else
 536       # Copy the file first to get proper permissions if it
 537       # doesn't already exist.  Then overwrite the copy.
 538       cp "$cp_src" "$cp_dst-t" &&
 539       (
 540         echo "$c1-*- buffer-read-only: t -*- vi: set ro:$c2" &&
 541         echo "${c1}DO NOT EDIT! GENERATED AUTOMATICALLY!$c2" &&
 542         echo '#line 1' &&
 543         sed "s!$bt_regex/!!g" "$cp_src"
 544       ) > $cp_dst-t &&
 545       if cmp -s "$cp_dst-t" "$cp_dst"; then
 546         rm -f "$cp_dst-t"
 547       else
 548         echo "$0: cp $cp_src $cp_dst # with edits" &&
 549         mv -f "$cp_dst-t" "$cp_dst"
 550       fi
 551     fi
 552   fi
 553 }
 554
 555 version_controlled_file() {
 556   dir=$1
 557   file=$2
 558   found=no
 559   if test -d CVS; then
 560     grep -F "/$file/" $dir/CVS/Entries 2>/dev/null |
 561              grep '^/[^/]*/[0-9]' > /dev/null && found=yes
 562   elif test -d .git; then
 563     git rm -n "$dir/$file" > /dev/null 2>&1 && found=yes
 564   elif test -d .svn; then
 565     svn log -r HEAD "$dir/$file" > /dev/null 2>&1 && found=yes
 566   else
 567     echo "$0: no version control for $dir/$file?" >&2
 568   fi
 569   test $found = yes
 570 }
 571
 572 slurp() {
 573   for dir in . `(cd $1 && find * -type d -print)`; do
 574     copied=
 575     sep=
 576     for file in `ls -a $1/$dir`; do
 577       case $file in
 578       .|..) continue;;
 579       .*) continue;; # FIXME: should all file names starting with "." be ignored?
 580       esac
 581       test -d $1/$dir/$file && continue
 582       for excluded_file in $excluded_files; do
 583         test "$dir/$file" = "$excluded_file" && continue 2
 584       done
 585       if test $file = Makefile.am; then
 586         copied=$copied${sep}$gnulib_mk; sep=$nl
 587         remove_intl='/^[^#].*\/intl/s/^/#/;'"s!$bt_regex/!!g"
 588         sed "$remove_intl" $1/$dir/$file | cmp - $dir/$gnulib_mk > /dev/null || {
 589           echo "$0: Copying $1/$dir/$file to $dir/$gnulib_mk ..." &&
 590           rm -f $dir/$gnulib_mk &&
 591           sed "$remove_intl" $1/$dir/$file >$dir/$gnulib_mk
 592         }
 593       elif { test "${2+set}" = set && test -r $2/$dir/$file; } ||
 594            version_controlled_file $dir $file; then
 595         echo "$0: $dir/$file overrides $1/$dir/$file"
 596       else
 597         copied=$copied$sep$file; sep=$nl
 598         if test $file = gettext.m4; then
 599           echo "$0: patching m4/gettext.m4 to remove need for intl/* ..."
 600           rm -f $dir/$file
 601           sed '
 602             /^AC_DEFUN(\[AM_INTL_SUBDIR],/,/^]/c\
 603               AC_DEFUN([AM_INTL_SUBDIR], [
 604             /^AC_DEFUN(\[gt_INTL_SUBDIR_CORE],/,/^]/c\
 605               AC_DEFUN([gt_INTL_SUBDIR_CORE], [])
 606             $a\
 607               AC_DEFUN([gl_LOCK_EARLY], [])
 608           ' $1/$dir/$file >$dir/$file
 609         else
 610           cp_mark_as_generated $1/$dir/$file $dir/$file
 611         fi
 612       fi || exit
 613     done
 614
 615     for dot_ig in x $vc_ignore; do
 616       test $dot_ig = x && continue
 617       ig=$dir/$dot_ig
 618       if test -n "$copied"; then
 619         insert_sorted_if_absent $ig "$copied"
 620         # If an ignored file name ends with .in.h, then also add
 621         # the name with just ".h".  Many gnulib headers are generated,
 622         # e.g., stdint.in.h -> stdint.h, dirent.in.h ->..., etc.
 623         # Likewise for .gperf -> .h, .y -> .c, and .sin -> .sed
 624         f=`echo "$copied"|sed 's/\.in\.h$/.h/;s/\.sin$/.sed/;s/\.y$/.c/;s/\.gperf$/.h/'`
 625         insert_sorted_if_absent $ig "$f"
 626
 627         # For files like sys_stat.in.h and sys_time.in.h, record as
 628         # ignorable the directory we might eventually create: sys/.
 629         f=`echo "$copied"|sed 's/sys_.*\.in\.h$/sys/'`
 630         insert_sorted_if_absent $ig "$f"
 631       fi
 632     done
 633   done
 634 }
 635
 636
 637 # Create boot temporary directories to import from gnulib and gettext.
 638 rm -fr $bt $bt2 &&
 639 mkdir $bt $bt2 || exit
 640
 641 # Import from gnulib.
 642
 643 gnulib_tool_options="\
 644  --import\
 645  --no-changelog\
 646  --aux-dir $bt/$build_aux\
 647  --doc-base $bt/$doc_base\
 648  --lib $gnulib_name\
 649  --m4-base $bt/$m4_base/\
 650  --source-base $bt/$source_base/\
 651  --tests-base $bt/$tests_base\
 652  --local-dir $local_gl_dir\
 653  $gnulib_tool_option_extras\
 654 "
 655 echo "$0: $gnulib_tool $gnulib_tool_options --import ..."
 656 $gnulib_tool $gnulib_tool_options --import $gnulib_modules &&
 657 slurp $bt || exit
 658
 659 for file in $gnulib_files; do
 660   symlink_to_dir "$GNULIB_SRCDIR" $file || exit
 661 done
 662
 663
 664 # Import from gettext.
 665 with_gettext=yes
 666 grep '^[         ]*AM_GNU_GETTEXT_VERSION(' configure.ac >/dev/null || \
 667     with_gettext=no
 668
 669 if test $with_gettext = yes; then
 670   echo "$0: (cd $bt2; ${AUTOPOINT-autopoint}) ..."
 671   cp configure.ac $bt2 &&
 672   (cd $bt2 && ${AUTOPOINT-autopoint} && rm configure.ac) &&
 673   slurp $bt2 $bt || exit
 674 fi
 675 rm -fr $bt $bt2 || exit
 676
 677 # Remove any dangling symlink matching "*.m4" or "*.[ch]" in some
 678 # gnulib-populated directories.  Such .m4 files would cause aclocal to fail.
 679 # The following requires GNU find 4.2.3 or newer.  Considering the usual
 680 # portability constraints of this script, that may seem a very demanding
 681 # requirement, but it should be ok.  Ignore any failure, which is fine,
 682 # since this is only a convenience to help developers avoid the relatively
 683 # unusual case in which a symlinked-to .m4 file is git-removed from gnulib
 684 # between successive runs of this script.
 685 find "$m4_base" "$source_base" \
 686   -depth \( -name '*.m4' -o -name '*.[ch]' \) \
 687   -type l -xtype l -delete > /dev/null 2>&1
 688
 689 # Reconfigure, getting other files.
 690
 691 for command in \
 692   libtool \
 693   "${ACLOCAL-aclocal} --force -I m4" \
 694   "${AUTOCONF-autoconf} --force" \
 695   "${AUTOHEADER-autoheader} --force" \
 696   "${AUTOMAKE-automake} --add-missing --copy --force-missing"
 697 do
 698   if test "$command" = libtool; then
 699     use_libtool=0
 700     # We'd like to use grep -E, to see if any of LT_INIT,
 701     # AC_PROG_LIBTOOL, AM_PROG_LIBTOOL is used in configure.ac,
 702     # but that's not portable enough (e.g., for Solaris).
 703     grep '^[     ]*A[CM]_PROG_LIBTOOL' configure.ac >/dev/null \
 704       && use_libtool=1
 705     grep '^[     ]*LT_INIT' configure.ac >/dev/null \
 706       && use_libtool=1
 707     test $use_libtool = 0 \
 708       && continue
 709     command="${LIBTOOLIZE-libtoolize} -c -f"
 710   fi
 711   echo "$0: $command ..."
 712   $command || exit
 713 done
 714
 715
 716 # Get some extra files from gnulib, overriding existing files.
 717 for file in $gnulib_extra_files; do
 718   case $file in
 719   */INSTALL) dst=INSTALL;;
 720   build-aux/*) dst=$build_aux/`expr "$file" : 'build-aux/\(.*\)'`;;
 721   *) dst=$file;;
 722   esac
 723   symlink_to_dir "$GNULIB_SRCDIR" $file $dst || exit
 724 done
 725
 726 if test $with_gettext = yes; then
 727   # Create gettext configuration.
 728   echo "$0: Creating po/Makevars from po/Makevars.template ..."
 729   rm -f po/Makevars
 730   sed '
 731     /^EXTRA_LOCALE_CATEGORIES *=/s/=.*/= '"$EXTRA_LOCALE_CATEGORIES"'/
 732     /^MSGID_BUGS_ADDRESS *=/s/=.*/= '"$MSGID_BUGS_ADDRESS"'/
 733     /^XGETTEXT_OPTIONS *=/{
 734       s/$/ \\/
 735       a\
 736           '"$XGETTEXT_OPTIONS"' $${end_of_xgettext_options+}
 737     }
 738   ' po/Makevars.template >po/Makevars
 739
 740   if test -d runtime-po; then
 741     # Similarly for runtime-po/Makevars, but not quite the same.
 742     rm -f runtime-po/Makevars
 743     sed '
 744       /^DOMAIN *=.*/s/=.*/= '"$package"'-runtime/
 745       /^subdir *=.*/s/=.*/= runtime-po/
 746       /^MSGID_BUGS_ADDRESS *=/s/=.*/= bug-'"$package"'@gnu.org/
 747       /^XGETTEXT_OPTIONS *=/{
 748         s/$/ \\/
 749         a\
 750             '"$XGETTEXT_OPTIONS_RUNTIME"' $${end_of_xgettext_options+}
 751       }
 752     ' <po/Makevars.template >runtime-po/Makevars
 753
 754     # Copy identical files from po to runtime-po.
 755     (cd po && cp -p Makefile.in.in *-quot *.header *.sed *.sin ../runtime-po)
 756   fi
 757 fi
 758
 759 # Horrible, coreutils-specific kludges.
 760 # Change paths in gnulib-tests/gnulib.mk from "../.." to "..".
 761 m=gnulib-tests/gnulib.mk
 762 sed 's,\.\./\.\.,..,g' $m > $m-t
 763 mv -f $m-t $m
 764
 765 echo "$0: done.  Now you can run './configure'."