bootstrap

   1 #! /bin/sh
   2 # Print a version string.
   3 scriptversion=2010-10-08.16; # UTC
   4
   5 # Bootstrap this package from checked-out sources.
   6
   7 # Copyright (C) 2003-2010 Free Software Foundation, Inc.
   8
   9 # This program is free software: you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation, either version 3 of the License, or
  12 # (at your option) any later version.
  13
  14 # This program is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21
  22 # Originally written by Paul Eggert.  The canonical version of this
  23 # script is maintained as build-aux/bootstrap in gnulib, however, to
  24 # be useful to your project, you should place a copy of it under
  25 # version control in the top-level directory of your project.  The
  26 # intent is that all customization can be done with a bootstrap.conf
  27 # file also maintained in your version control; gnulib comes with a
  28 # template build-aux/bootstrap.conf to get you started.
  29
  30 # Please report bugs or propose patches to bug-gnulib@gnu.org.
  31
  32 nl='
  33 '
  34
  35 # Ensure file names are sorted consistently across platforms.
  36 LC_ALL=C
  37 export LC_ALL
  38
  39 local_gl_dir=gl
  40
  41 # Temporary directory names.
  42 bt='._bootmp'
  43 bt_regex=`echo "$bt"| sed 's/\./[.]/g'`
  44 bt2=${bt}2
  45
  46 usage() {
  47   cat <<EOF
  48 Usage: $0 [OPTION]...
  49 Bootstrap this package from the checked-out sources.
  50
  51 Options:
  52  --gnulib-srcdir=DIRNAME  Specify the local directory where gnulib
  53                           sources reside.  Use this if you already
  54                           have gnulib sources on your machine, and
  55                           do not want to waste your bandwidth downloading
  56                           them again.  Defaults to \$GNULIB_SRCDIR.
  57  --copy                   Copy files instead of creating symbolic links.
  58  --force                  Attempt to bootstrap even if the sources seem
  59                           not to have been checked out.
  60  --skip-po                Do not download po files.
  61
  62 If the file $0.conf exists in the same directory as this script, its
  63 contents are read as shell variables to configure the bootstrap.
  64
  65 For build prerequisites, environment variables like \$AUTOCONF and \$AMTAR
  66 are honored.
  67
  68 Running without arguments will suffice in most cases.
  69 EOF
  70 }
  71
  72 # Configuration.
  73
  74 # Name of the Makefile.am
  75 gnulib_mk=gnulib.mk
  76
  77 # List of gnulib modules needed.
  78 gnulib_modules=
  79
  80 # Any gnulib files needed that are not in modules.
  81 gnulib_files=
  82
  83 # A function to be called to edit gnulib.mk right after it's created.
  84 # Override it via your own definition in bootstrap.conf.
  85 gnulib_mk_hook() { :; }
  86
  87 # A function to be called after everything else in this script.
  88 # Override it via your own definition in bootstrap.conf.
  89 bootstrap_epilogue() { :; }
  90
  91 # The command to download all .po files for a specified domain into
  92 # a specified directory.  Fill in the first %s is the domain name, and
  93 # the second with the destination directory.  Use rsync's -L and -r
  94 # options because the latest/%s directory and the .po files within are
  95 # all symlinks.
  96 po_download_command_format=\
  97 "rsync --delete --exclude '*.s1' -Lrtvz \
  98  'translationproject.org::tp/latest/%s/' '%s'"
  99
 100 extract_package_name='
 101   /^AC_INIT(/{
 102      /.*,.*,.*, */{
 103        s///
 104        s/[][]//g
 105        s/)$//
 106        p
 107        q
 108      }
 109      s/AC_INIT(\[*//
 110      s/]*,.*//
 111      s/^GNU //
 112      y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/
 113      s/[^A-Za-z0-9_]/-/g
 114      p
 115   }
 116 '
 117 package=`sed -n "$extract_package_name" configure.ac` || exit
 118 gnulib_name=lib$package
 119
 120 build_aux=build-aux
 121 source_base=lib
 122 m4_base=m4
 123 doc_base=doc
 124 tests_base=tests
 125
 126 # Extra files from gnulib, which override files from other sources.
 127 gnulib_extra_files="
 128         $build_aux/install-sh
 129         $build_aux/missing
 130         $build_aux/mdate-sh
 131         $build_aux/texinfo.tex
 132         $build_aux/depcomp
 133         $build_aux/config.guess
 134         $build_aux/config.sub
 135         doc/INSTALL
 136 "
 137
 138 # Additional gnulib-tool options to use.  Use "\newline" to break lines.
 139 gnulib_tool_option_extras=
 140
 141 # Other locale categories that need message catalogs.
 142 EXTRA_LOCALE_CATEGORIES=
 143
 144 # Additional xgettext options to use.  Use "\\\newline" to break lines.
 145 XGETTEXT_OPTIONS='\\\
 146  --flag=_:1:pass-c-format\\\
 147  --flag=N_:1:pass-c-format\\\
 148  --flag=error:3:c-format --flag=error_at_line:5:c-format\\\
 149 '
 150
 151 # Package bug report address and copyright holder for gettext files
 152 COPYRIGHT_HOLDER='Free Software Foundation, Inc.'
 153 MSGID_BUGS_ADDRESS=bug-$package@gnu.org
 154
 155 # Files we don't want to import.
 156 excluded_files=
 157
 158 # File that should exist in the top directory of a checked out hierarchy,
 159 # but not in a distribution tarball.
 160 checkout_only_file=README-hacking
 161
 162 # Whether to use copies instead of symlinks.
 163 copy=false
 164
 165 # Set this to '.cvsignore .gitignore' in bootstrap.conf if you want
 166 # those files to be generated in directories like lib/, m4/, and po/.
 167 # Or set it to 'auto' to make this script select which to use based
 168 # on which version control system (if any) is used in the source directory.
 169 vc_ignore=auto
 170
 171 # find_tool ENVVAR NAMES...
 172 # -------------------------
 173 # Search for a required program.  Use the value of ENVVAR, if set,
 174 # otherwise find the first of the NAMES that can be run (i.e.,
 175 # supports --version).  If found, set ENVVAR to the program name,
 176 # die otherwise.
 177 find_tool ()
 178 {
 179   find_tool_envvar=$1
 180   shift
 181   find_tool_names=$@
 182   eval "find_tool_res=\$$find_tool_envvar"
 183   if test x"$find_tool_res" = x; then
 184     for i
 185     do
 186       if ($i --version </dev/null) >/dev/null 2>&1; then
 187        find_tool_res=$i
 188        break
 189       fi
 190     done
 191   else
 192     find_tool_error_prefix="\$$find_tool_envvar: "
 193   fi
 194   if test x"$find_tool_res" = x; then
 195     echo >&2 "$0: one of these is required: $find_tool_names"
 196     exit 1
 197   fi
 198   ($find_tool_res --version </dev/null) >/dev/null 2>&1 || {
 199     echo >&2 "$0: ${find_tool_error_prefix}cannot run $find_tool_res --version"
 200     exit 1
 201   }
 202   eval "$find_tool_envvar=\$find_tool_res"
 203   eval "export $find_tool_envvar"
 204 }
 205
 206 # Find sha1sum, named gsha1sum on MacPorts, and shasum on MacOS 10.6.
 207 find_tool SHA1SUM sha1sum gsha1sum shasum
 208
 209 # Override the default configuration, if necessary.
 210 # Make sure that bootstrap.conf is sourced from the current directory
 211 # if we were invoked as "sh bootstrap".
 212 case "$0" in
 213   */*) test -r "$0.conf" && . "$0.conf" ;;
 214   *) test -r "$0.conf" && . ./"$0.conf" ;;
 215 esac
 216
 217
 218 if test "$vc_ignore" = auto; then
 219   vc_ignore=
 220   test -d .git && vc_ignore=.gitignore
 221   test -d CVS && vc_ignore="$vc_ignore .cvsignore"
 222 fi
 223
 224 # Translate configuration into internal form.
 225
 226 # Parse options.
 227
 228 for option
 229 do
 230   case $option in
 231   --help)
 232     usage
 233     exit;;
 234   --gnulib-srcdir=*)
 235     GNULIB_SRCDIR=`expr "X$option" : 'X--gnulib-srcdir=\(.*\)'`;;
 236   --skip-po)
 237     SKIP_PO=t;;
 238   --force)
 239     checkout_only_file=;;
 240   --copy)
 241     copy=true;;
 242   *)
 243     echo >&2 "$0: $option: unknown option"
 244     exit 1;;
 245   esac
 246 done
 247
 248 if test -n "$checkout_only_file" && test ! -r "$checkout_only_file"; then
 249   echo "$0: Bootstrapping from a non-checked-out distribution is risky." >&2
 250   exit 1
 251 fi
 252
 253 # If $STR is not already on a line by itself in $FILE, insert it,
 254 # sorting the new contents of the file and replacing $FILE with the result.
 255 insert_sorted_if_absent() {
 256   file=$1
 257   str=$2
 258   test -f $file || touch $file
 259   echo "$str" | sort -u - $file | cmp - $file > /dev/null \
 260     || echo "$str" | sort -u - $file -o $file \
 261     || exit 1
 262 }
 263
 264 # Adjust $PATTERN for $VC_IGNORE_FILE and insert it with
 265 # insert_sorted_if_absent.
 266 insert_vc_ignore() {
 267   vc_ignore_file="$1"
 268   pattern="$2"
 269   case $vc_ignore_file in
 270   *.gitignore)
 271     # A .gitignore entry that does not start with `/' applies
 272     # recursively to subdirectories, so prepend `/' to every
 273     # .gitignore entry.
 274     pattern=`echo "$pattern" | sed s,^,/,`;;
 275   esac
 276   insert_sorted_if_absent "$vc_ignore_file" "$pattern"
 277 }
 278
 279 # Die if there is no AC_CONFIG_AUX_DIR($build_aux) line in configure.ac.
 280 found_aux_dir=no
 281 grep '^[         ]*AC_CONFIG_AUX_DIR(\['"$build_aux"'\])' configure.ac \
 282     >/dev/null && found_aux_dir=yes
 283 grep '^[         ]*AC_CONFIG_AUX_DIR('"$build_aux"')' configure.ac \
 284     >/dev/null && found_aux_dir=yes
 285 if test $found_aux_dir = no; then
 286   echo "$0: expected line not found in configure.ac. Add the following:" >&2
 287   echo "  AC_CONFIG_AUX_DIR([$build_aux])" >&2
 288   exit 1
 289 fi
 290
 291 # If $build_aux doesn't exist, create it now, otherwise some bits
 292 # below will malfunction.  If creating it, also mark it as ignored.
 293 if test ! -d $build_aux; then
 294   mkdir $build_aux
 295   for dot_ig in x $vc_ignore; do
 296     test $dot_ig = x && continue
 297     insert_vc_ignore $dot_ig $build_aux
 298   done
 299 fi
 300
 301 # Note this deviates from the version comparison in automake
 302 # in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a
 303 # but this should suffice as we won't be specifying old
 304 # version formats or redundant trailing .0 in bootstrap.conf.
 305 # If we did want full compatibility then we should probably
 306 # use m4_version_compare from autoconf.
 307 sort_ver() { # sort -V is not generally available
 308   ver1="$1"
 309   ver2="$2"
 310
 311   # split on '.' and compare each component
 312   i=1
 313   while : ; do
 314     p1=$(echo "$ver1" | cut -d. -f$i)
 315     p2=$(echo "$ver2" | cut -d. -f$i)
 316     if [ ! "$p1" ]; then
 317       echo "$1 $2"
 318       break
 319     elif [ ! "$p2" ]; then
 320       echo "$2 $1"
 321       break
 322     elif [ ! "$p1" = "$p2" ]; then
 323       if [ "$p1" -gt "$p2" ] 2>/dev/null; then # numeric comparison
 324         echo "$2 $1"
 325       elif [ "$p2" -gt "$p1" ] 2>/dev/null; then # numeric comparison
 326         echo "$1 $2"
 327       else # numeric, then lexicographic comparison
 328         lp=$(printf "$p1\n$p2\n" | LANG=C sort -n | tail -n1)
 329         if [ "$lp" = "$p2" ]; then
 330           echo "$1 $2"
 331         else
 332           echo "$2 $1"
 333         fi
 334       fi
 335       break
 336     fi
 337     i=$(($i+1))
 338   done
 339 }
 340
 341 get_version() {
 342   app=$1
 343
 344   $app --version >/dev/null 2>&1 || return 1
 345
 346   $app --version 2>&1 |
 347   sed -n '# extract version within line
 348           s/.*[v ]\{1,\}\([0-9]\{1,\}\.[.a-z0-9-]*\).*/\1/
 349           t done
 350
 351           # extract version at start of line
 352           s/^\([0-9]\{1,\}\.[.a-z0-9-]*\).*/\1/
 353           t done
 354
 355           d
 356
 357           :done
 358           #the following essentially does s/5.005/5.5/
 359           s/\.0*\([1-9]\)/.\1/g
 360           p
 361           q'
 362 }
 363
 364 check_versions() {
 365   ret=0
 366
 367   while read app req_ver; do
 368     # We only need libtoolize from the libtool package.
 369     if test "$app" = libtool; then
 370       app=libtoolize
 371     fi
 372     # Honor $APP variables ($TAR, $AUTOCONF, etc.)
 373     appvar=`echo $app | tr '[a-z]-' '[A-Z]_'`
 374     test "$appvar" = TAR && appvar=AMTAR
 375     eval "app=\${$appvar-$app}"
 376     inst_ver=$(get_version $app)
 377     if [ ! "$inst_ver" ]; then
 378       echo "Error: '$app' not found" >&2
 379       ret=1
 380     elif [ ! "$req_ver" = "-" ]; then
 381       latest_ver=$(sort_ver $req_ver $inst_ver | cut -d' ' -f2)
 382       if [ ! "$latest_ver" = "$inst_ver" ]; then
 383         echo "Error: '$app' version == $inst_ver is too old" >&2
 384         echo "       '$app' version >= $req_ver is required" >&2
 385         ret=1
 386       fi
 387     fi
 388   done
 389
 390   return $ret
 391 }
 392
 393 print_versions() {
 394   echo "Program    Min_version"
 395   echo "----------------------"
 396   printf %s "$buildreq"
 397   echo "----------------------"
 398   # can't depend on column -t
 399 }
 400
 401 use_libtool=0
 402 # We'd like to use grep -E, to see if any of LT_INIT,
 403 # AC_PROG_LIBTOOL, AM_PROG_LIBTOOL is used in configure.ac,
 404 # but that's not portable enough (e.g., for Solaris).
 405 grep '^[         ]*A[CM]_PROG_LIBTOOL' configure.ac >/dev/null \
 406   && use_libtool=1
 407 grep '^[         ]*LT_INIT' configure.ac >/dev/null \
 408   && use_libtool=1
 409 if test $use_libtool = 1; then
 410   find_tool LIBTOOLIZE glibtoolize libtoolize
 411 fi
 412
 413 if ! printf "$buildreq" | check_versions; then
 414   echo >&2
 415   if test -f README-prereq; then
 416     echo "See README-prereq for how to get the prerequisite programs" >&2
 417   else
 418     echo "Please install the prerequisite programs" >&2
 419   fi
 420   exit 1
 421 fi
 422
 423 echo "$0: Bootstrapping from checked-out $package sources..."
 424
 425 # See if we can use gnulib's git-merge-changelog merge driver.
 426 if test -d .git && (git --version) >/dev/null 2>/dev/null ; then
 427   if git config merge.merge-changelog.driver >/dev/null ; then
 428     :
 429   elif (git-merge-changelog --version) >/dev/null 2>/dev/null ; then
 430     echo "initializing git-merge-changelog driver"
 431     git config merge.merge-changelog.name 'GNU-style ChangeLog merge driver'
 432     git config merge.merge-changelog.driver 'git-merge-changelog %O %A %B'
 433   else
 434     echo "consider installing git-merge-changelog from gnulib"
 435   fi
 436 fi
 437
 438
 439 cleanup_gnulib() {
 440   status=$?
 441   rm -fr "$gnulib_path"
 442   exit $status
 443 }
 444
 445 git_modules_config () {
 446   test -f .gitmodules && git config --file .gitmodules "$@"
 447 }
 448
 449 gnulib_path=`git_modules_config submodule.gnulib.path`
 450 : ${gnulib_path=gnulib}
 451
 452 # Get gnulib files.
 453
 454 case ${GNULIB_SRCDIR--} in
 455 -)
 456   if git_modules_config submodule.gnulib.url >/dev/null; then
 457     echo "$0: getting gnulib files..."
 458     git submodule init || exit $?
 459     git submodule update || exit $?
 460
 461   elif [ ! -d "$gnulib_path" ]; then
 462     echo "$0: getting gnulib files..."
 463
 464     trap cleanup_gnulib 1 2 13 15
 465
 466     shallow=
 467     git clone -h 2>&1 | grep -- --depth > /dev/null && shallow='--depth 2'
 468     git clone $shallow git://git.sv.gnu.org/gnulib "$gnulib_path" ||
 469       cleanup_gnulib
 470
 471     trap - 1 2 13 15
 472   fi
 473   GNULIB_SRCDIR=$gnulib_path
 474   ;;
 475 *)
 476   # Use GNULIB_SRCDIR as a reference.
 477   if test -d "$GNULIB_SRCDIR"/.git && \
 478         git_modules_config submodule.gnulib.url >/dev/null; then
 479     echo "$0: getting gnulib files..."
 480     if git submodule -h|grep -- --reference > /dev/null; then
 481       # Prefer the one-liner available in git 1.6.4 or newer.
 482       git submodule update --init --reference "$GNULIB_SRCDIR" \
 483         "$gnulib_path" || exit $?
 484     else
 485       # This fallback allows at least git 1.5.5.
 486       if test -f "$gnulib_path"/gnulib-tool; then
 487         # Since file already exists, assume submodule init already complete.
 488         git submodule update || exit $?
 489       else
 490         # Older git can't clone into an empty directory.
 491         rmdir "$gnulib_path" 2>/dev/null
 492         git clone --reference "$GNULIB_SRCDIR" \
 493           "$(git_modules_config submodule.gnulib.url)" "$gnulib_path" \
 494           && git submodule init && git submodule update \
 495           || exit $?
 496       fi
 497     fi
 498     GNULIB_SRCDIR=$gnulib_path
 499   fi
 500   ;;
 501 esac
 502
 503 gnulib_tool=$GNULIB_SRCDIR/gnulib-tool
 504 <$gnulib_tool || exit
 505
 506 # Get translations.
 507
 508 download_po_files() {
 509   subdir=$1
 510   domain=$2
 511   echo "$0: getting translations into $subdir for $domain..."
 512   cmd=`printf "$po_download_command_format" "$domain" "$subdir"`
 513   eval "$cmd"
 514 }
 515
 516 # Mirror .po files to $po_dir/.reference and copy only the new
 517 # or modified ones into $po_dir.  Also update $po_dir/LINGUAS.
 518 # Note po files that exist locally only are left in $po_dir but will
 519 # not be included in LINGUAS and hence will not be distributed.
 520 update_po_files() {
 521   # Directory containing primary .po files.
 522   # Overwrite them only when we're sure a .po file is new.
 523   po_dir=$1
 524   domain=$2
 525
 526   # Mirror *.po files into this dir.
 527   # Usually contains *.s1 checksum files.
 528   ref_po_dir="$po_dir/.reference"
 529
 530   test -d $ref_po_dir || mkdir $ref_po_dir || return
 531   download_po_files $ref_po_dir $domain \
 532     && ls "$ref_po_dir"/*.po 2>/dev/null |
 533       sed 's|.*/||; s|\.po$||' > "$po_dir/LINGUAS" || return
 534
 535   langs=`cd $ref_po_dir && echo *.po|sed 's/\.po//g'`
 536   test "$langs" = '*' && langs=x
 537   for po in $langs; do
 538     case $po in x) continue;; esac
 539     new_po="$ref_po_dir/$po.po"
 540     cksum_file="$ref_po_dir/$po.s1"
 541     if ! test -f "$cksum_file" ||
 542         ! test -f "$po_dir/$po.po" ||
 543         ! $SHA1SUM -c --status "$cksum_file" \
 544             < "$new_po" > /dev/null; then
 545       echo "updated $po_dir/$po.po..."
 546       cp "$new_po" "$po_dir/$po.po" \
 547           && $SHA1SUM < "$new_po" > "$cksum_file"
 548     fi
 549   done
 550 }
 551
 552 case $SKIP_PO in
 553 '')
 554   if test -d po; then
 555     update_po_files po $package || exit
 556   fi
 557
 558   if test -d runtime-po; then
 559     update_po_files runtime-po $package-runtime || exit
 560   fi;;
 561 esac
 562
 563 symlink_to_dir()
 564 {
 565   src=$1/$2
 566   dst=${3-$2}
 567
 568   test -f "$src" && {
 569
 570     # If the destination directory doesn't exist, create it.
 571     # This is required at least for "lib/uniwidth/cjk.h".
 572     dst_dir=`dirname "$dst"`
 573     if ! test -d "$dst_dir"; then
 574       mkdir -p "$dst_dir"
 575
 576       # If we've just created a directory like lib/uniwidth,
 577       # tell version control system(s) it's ignorable.
 578       # FIXME: for now, this does only one level
 579       parent=`dirname "$dst_dir"`
 580       for dot_ig in x $vc_ignore; do
 581         test $dot_ig = x && continue
 582         ig=$parent/$dot_ig
 583         insert_vc_ignore $ig `echo "$dst_dir"|sed 's,.*/,,'`
 584       done
 585     fi
 586
 587     if $copy; then
 588       {
 589         test ! -h "$dst" || {
 590           echo "$0: rm -f $dst" &&
 591           rm -f "$dst"
 592         }
 593       } &&
 594       test -f "$dst" &&
 595       cmp -s "$src" "$dst" || {
 596         echo "$0: cp -fp $src $dst" &&
 597         cp -fp "$src" "$dst"
 598       }
 599     else
 600       test -h "$dst" &&
 601       src_ls=`ls -diL "$src" 2>/dev/null` && set $src_ls && src_i=$1 &&
 602       dst_ls=`ls -diL "$dst" 2>/dev/null` && set $dst_ls && dst_i=$1 &&
 603       test "$src_i" = "$dst_i" || {
 604         dot_dots=
 605         case $src in
 606         /*) ;;
 607         *)
 608           case /$dst/ in
 609           *//* | */../* | */./* | /*/*/*/*/*/)
 610              echo >&2 "$0: invalid symlink calculation: $src -> $dst"
 611              exit 1;;
 612           /*/*/*/*/)    dot_dots=../../../;;
 613           /*/*/*/)      dot_dots=../../;;
 614           /*/*/)        dot_dots=../;;
 615           esac;;
 616         esac
 617
 618         echo "$0: ln -fs $dot_dots$src $dst" &&
 619         ln -fs "$dot_dots$src" "$dst"
 620       }
 621     fi
 622   }
 623 }
 624
 625 cp_mark_as_generated()
 626 {
 627   cp_src=$1
 628   cp_dst=$2
 629
 630   if cmp -s "$cp_src" "$GNULIB_SRCDIR/$cp_dst"; then
 631     symlink_to_dir "$GNULIB_SRCDIR" "$cp_dst"
 632   elif cmp -s "$cp_src" "$local_gl_dir/$cp_dst"; then
 633     symlink_to_dir $local_gl_dir "$cp_dst"
 634   else
 635     case $cp_dst in
 636       *.[ch])             c1='/* '; c2=' */';;
 637       *.texi)             c1='@c '; c2=     ;;
 638       *.m4|*/Make*|Make*) c1='# ' ; c2=     ;;
 639       *)                  c1=     ; c2=     ;;
 640     esac
 641
 642     # If the destination directory doesn't exist, create it.
 643     # This is required at least for "lib/uniwidth/cjk.h".
 644     dst_dir=`dirname "$cp_dst"`
 645     test -d "$dst_dir" || mkdir -p "$dst_dir"
 646
 647     if test -z "$c1"; then
 648       cmp -s "$cp_src" "$cp_dst" || {
 649         # Copy the file first to get proper permissions if it
 650         # doesn't already exist.  Then overwrite the copy.
 651         echo "$0: cp -f $cp_src $cp_dst" &&
 652         rm -f "$cp_dst" &&
 653         cp "$cp_src" "$cp_dst-t" &&
 654         sed "s!$bt_regex/!!g" "$cp_src" > "$cp_dst-t" &&
 655         mv -f "$cp_dst-t" "$cp_dst"
 656       }
 657     else
 658       # Copy the file first to get proper permissions if it
 659       # doesn't already exist.  Then overwrite the copy.
 660       cp "$cp_src" "$cp_dst-t" &&
 661       (
 662         echo "$c1-*- buffer-read-only: t -*- vi: set ro:$c2" &&
 663         echo "${c1}DO NOT EDIT! GENERATED AUTOMATICALLY!$c2" &&
 664         sed "s!$bt_regex/!!g" "$cp_src"
 665       ) > $cp_dst-t &&
 666       if cmp -s "$cp_dst-t" "$cp_dst"; then
 667         rm -f "$cp_dst-t"
 668       else
 669         echo "$0: cp $cp_src $cp_dst # with edits" &&
 670         mv -f "$cp_dst-t" "$cp_dst"
 671       fi
 672     fi
 673   fi
 674 }
 675
 676 version_controlled_file() {
 677   dir=$1
 678   file=$2
 679   found=no
 680   if test -d CVS; then
 681     grep -F "/$file/" $dir/CVS/Entries 2>/dev/null |
 682              grep '^/[^/]*/[0-9]' > /dev/null && found=yes
 683   elif test -d .git; then
 684     git rm -n "$dir/$file" > /dev/null 2>&1 && found=yes
 685   elif test -d .svn; then
 686     svn log -r HEAD "$dir/$file" > /dev/null 2>&1 && found=yes
 687   else
 688     echo "$0: no version control for $dir/$file?" >&2
 689   fi
 690   test $found = yes
 691 }
 692
 693 slurp() {
 694   for dir in . `(cd $1 && find * -type d -print)`; do
 695     copied=
 696     sep=
 697     for file in `ls -a $1/$dir`; do
 698       case $file in
 699       .|..) continue;;
 700       # FIXME: should all file names starting with "." be ignored?
 701       .*) continue;;
 702       esac
 703       test -d $1/$dir/$file && continue
 704       for excluded_file in $excluded_files; do
 705         test "$dir/$file" = "$excluded_file" && continue 2
 706       done
 707       if test $file = Makefile.am && test "X$gnulib_mk" != XMakefile.am; then
 708         copied=$copied${sep}$gnulib_mk; sep=$nl
 709         remove_intl='/^[^#].*\/intl/s/^/#/;'"s!$bt_regex/!!g"
 710         sed "$remove_intl" $1/$dir/$file |
 711         cmp - $dir/$gnulib_mk > /dev/null || {
 712           echo "$0: Copying $1/$dir/$file to $dir/$gnulib_mk ..." &&
 713           rm -f $dir/$gnulib_mk &&
 714           sed "$remove_intl" $1/$dir/$file >$dir/$gnulib_mk &&
 715           gnulib_mk_hook $dir/$gnulib_mk
 716         }
 717       elif { test "${2+set}" = set && test -r $2/$dir/$file; } ||
 718            version_controlled_file $dir $file; then
 719         echo "$0: $dir/$file overrides $1/$dir/$file"
 720       else
 721         copied=$copied$sep$file; sep=$nl
 722         if test $file = gettext.m4; then
 723           echo "$0: patching m4/gettext.m4 to remove need for intl/* ..."
 724           rm -f $dir/$file
 725           sed '
 726             /^AC_DEFUN(\[AM_INTL_SUBDIR],/,/^]/c\
 727               AC_DEFUN([AM_INTL_SUBDIR], [])
 728             /^AC_DEFUN(\[gt_INTL_SUBDIR_CORE],/,/^]/c\
 729               AC_DEFUN([gt_INTL_SUBDIR_CORE], [])
 730             $a\
 731               AC_DEFUN([gl_LOCK_EARLY], [])
 732           ' $1/$dir/$file >$dir/$file
 733         else
 734           cp_mark_as_generated $1/$dir/$file $dir/$file
 735         fi
 736       fi || exit
 737     done
 738
 739     for dot_ig in x $vc_ignore; do
 740       test $dot_ig = x && continue
 741       ig=$dir/$dot_ig
 742       if test -n "$copied"; then
 743         insert_vc_ignore $ig "$copied"
 744         # If an ignored file name ends with .in.h, then also add
 745         # the name with just ".h".  Many gnulib headers are generated,
 746         # e.g., stdint.in.h -> stdint.h, dirent.in.h ->..., etc.
 747         # Likewise for .gperf -> .h, .y -> .c, and .sin -> .sed
 748         f=`echo "$copied" |
 749           sed '
 750             s/\.in\.h$/.h/
 751             s/\.sin$/.sed/
 752             s/\.y$/.c/
 753             s/\.gperf$/.h/
 754           '
 755         `
 756         insert_vc_ignore $ig "$f"
 757
 758         # For files like sys_stat.in.h and sys_time.in.h, record as
 759         # ignorable the directory we might eventually create: sys/.
 760         f=`echo "$copied"|sed 's/sys_.*\.in\.h$/sys/'`
 761         insert_vc_ignore $ig "$f"
 762       fi
 763     done
 764   done
 765 }
 766
 767
 768 # Create boot temporary directories to import from gnulib and gettext.
 769 rm -fr $bt $bt2 &&
 770 mkdir $bt $bt2 || exit
 771
 772 # Import from gnulib.
 773
 774 gnulib_tool_options="\
 775  --import\
 776  --no-changelog\
 777  --aux-dir $bt/$build_aux\
 778  --doc-base $bt/$doc_base\
 779  --lib $gnulib_name\
 780  --m4-base $bt/$m4_base/\
 781  --source-base $bt/$source_base/\
 782  --tests-base $bt/$tests_base\
 783  --local-dir $local_gl_dir\
 784  $gnulib_tool_option_extras\
 785 "
 786 if test $use_libtool = 1; then
 787   case "$gnulib_tool_options " in
 788     *' --libtool '*) ;;
 789     *) gnulib_tool_options="$gnulib_tool_options --libtool" ;;
 790   esac
 791 fi
 792 echo "$0: $gnulib_tool $gnulib_tool_options --import ..."
 793 $gnulib_tool $gnulib_tool_options --import $gnulib_modules &&
 794 slurp $bt || exit
 795
 796 for file in $gnulib_files; do
 797   symlink_to_dir "$GNULIB_SRCDIR" $file || exit
 798 done
 799
 800
 801 # Import from gettext.
 802 with_gettext=yes
 803 grep '^[         ]*AM_GNU_GETTEXT_VERSION(' configure.ac >/dev/null || \
 804     with_gettext=no
 805
 806 if test $with_gettext = yes; then
 807   echo "$0: (cd $bt2; ${AUTOPOINT-autopoint}) ..."
 808   cp configure.ac $bt2 &&
 809   (cd $bt2 && ${AUTOPOINT-autopoint} && rm configure.ac) &&
 810   slurp $bt2 $bt || exit
 811 fi
 812 rm -fr $bt $bt2 || exit
 813
 814 # Remove any dangling symlink matching "*.m4" or "*.[ch]" in some
 815 # gnulib-populated directories.  Such .m4 files would cause aclocal to fail.
 816 # The following requires GNU find 4.2.3 or newer.  Considering the usual
 817 # portability constraints of this script, that may seem a very demanding
 818 # requirement, but it should be ok.  Ignore any failure, which is fine,
 819 # since this is only a convenience to help developers avoid the relatively
 820 # unusual case in which a symlinked-to .m4 file is git-removed from gnulib
 821 # between successive runs of this script.
 822 find "$m4_base" "$source_base" \
 823   -depth \( -name '*.m4' -o -name '*.[ch]' \) \
 824   -type l -xtype l -delete > /dev/null 2>&1
 825
 826 # Reconfigure, getting other files.
 827
 828 # Skip autoheader if it's not needed.
 829 grep -E '^[      ]*AC_CONFIG_HEADERS?\>' configure.ac >/dev/null ||
 830   AUTOHEADER=true
 831
 832 for command in \
 833   libtool \
 834   "${ACLOCAL-aclocal} --force -I m4 $ACLOCAL_FLAGS" \
 835   "${AUTOCONF-autoconf} --force" \
 836   "${AUTOHEADER-autoheader} --force" \
 837   "${AUTOMAKE-automake} --add-missing --copy --force-missing"
 838 do
 839   if test "$command" = libtool; then
 840     test $use_libtool = 0 \
 841       && continue
 842     command="${LIBTOOLIZE-libtoolize} -c -f"
 843   fi
 844   echo "$0: $command ..."
 845   $command || exit
 846 done
 847
 848
 849 # Get some extra files from gnulib, overriding existing files.
 850 for file in $gnulib_extra_files; do
 851   case $file in
 852   */INSTALL) dst=INSTALL;;
 853   build-aux/*) dst=$build_aux/`expr "$file" : 'build-aux/\(.*\)'`;;
 854   *) dst=$file;;
 855   esac
 856   symlink_to_dir "$GNULIB_SRCDIR" $file $dst || exit
 857 done
 858
 859 if test $with_gettext = yes; then
 860   # Create gettext configuration.
 861   echo "$0: Creating po/Makevars from po/Makevars.template ..."
 862   rm -f po/Makevars
 863   sed '
 864     /^EXTRA_LOCALE_CATEGORIES *=/s/=.*/= '"$EXTRA_LOCALE_CATEGORIES"'/
 865     /^COPYRIGHT_HOLDER *=/s/=.*/= '"$COPYRIGHT_HOLDER"'/
 866     /^MSGID_BUGS_ADDRESS *=/s|=.*|= '"$MSGID_BUGS_ADDRESS"'|
 867     /^XGETTEXT_OPTIONS *=/{
 868       s/$/ \\/
 869       a\
 870           '"$XGETTEXT_OPTIONS"' $${end_of_xgettext_options+}
 871     }
 872   ' po/Makevars.template >po/Makevars || exit 1
 873
 874   if test -d runtime-po; then
 875     # Similarly for runtime-po/Makevars, but not quite the same.
 876     rm -f runtime-po/Makevars
 877     sed '
 878       /^DOMAIN *=.*/s/=.*/= '"$package"'-runtime/
 879       /^subdir *=.*/s/=.*/= runtime-po/
 880       /^MSGID_BUGS_ADDRESS *=/s/=.*/= bug-'"$package"'@gnu.org/
 881       /^XGETTEXT_OPTIONS *=/{
 882         s/$/ \\/
 883         a\
 884             '"$XGETTEXT_OPTIONS_RUNTIME"' $${end_of_xgettext_options+}
 885       }
 886     ' po/Makevars.template >runtime-po/Makevars || exit 1
 887
 888     # Copy identical files from po to runtime-po.
 889     (cd po && cp -p Makefile.in.in *-quot *.header *.sed *.sin ../runtime-po)
 890   fi
 891 fi
 892
 893 bootstrap_epilogue
 894
 895 echo "$0: done.  Now you can run './configure'."
 896
 897 # Local variables:
 898 # eval: (add-hook 'write-file-hooks 'time-stamp)
 899 # time-stamp-start: "scriptversion="
 900 # time-stamp-format: "%:y-%02m-%02d.%02H"
 901 # time-stamp-time-zone: "UTC"
 902 # time-stamp-end: "; # UTC"
 903 # End: