bootstrap 29.4 KB
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#! /bin/sh
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# Print a version string.
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scriptversion=2013-05-08.20; # UTC
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# Bootstrap this package from checked-out sources.

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# Copyright (C) 2003-2013 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
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# along with this program.  If not, see <http://www.gnu.org/licenses/>.
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# Originally written by Paul Eggert.  The canonical version of this
# script is maintained as build-aux/bootstrap in gnulib, however, to
# be useful to your project, you should place a copy of it under
# version control in the top-level directory of your project.  The
# intent is that all customization can be done with a bootstrap.conf
# file also maintained in your version control; gnulib comes with a
# template build-aux/bootstrap.conf to get you started.

# Please report bugs or propose patches to bug-gnulib@gnu.org.
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nl='
'

# Ensure file names are sorted consistently across platforms.
LC_ALL=C
export LC_ALL

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# Ensure that CDPATH is not set.  Otherwise, the output from cd
# would cause trouble in at least one use below.
(unset CDPATH) >/dev/null 2>&1 && unset CDPATH

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local_gl_dir=gl

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me=$0
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usage() {
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  cat <<EOF
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Usage: $me [OPTION]...
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Bootstrap this package from the checked-out sources.

Options:
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 --gnulib-srcdir=DIRNAME  specify the local directory where gnulib
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                          sources reside.  Use this if you already
                          have gnulib sources on your machine, and
                          do not want to waste your bandwidth downloading
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                          them again.  Defaults to \$GNULIB_SRCDIR
 --bootstrap-sync         if this bootstrap script is not identical to
                          the version in the local gnulib sources,
                          update this script, and then restart it with
                          /bin/sh or the shell \$CONFIG_SHELL
 --no-bootstrap-sync      do not check whether bootstrap is out of sync
 --copy                   copy files instead of creating symbolic links
 --force                  attempt to bootstrap even if the sources seem
                          not to have been checked out
 --no-git                 do not use git to update gnulib.  Requires that
                          --gnulib-srcdir point to a correct gnulib snapshot
 --skip-po                do not download po files

If the file $me.conf exists in the same directory as this script, its
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contents are read as shell variables to configure the bootstrap.

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For build prerequisites, environment variables like \$AUTOCONF and \$AMTAR
are honored.

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Running without arguments will suffice in most cases.
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EOF
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}

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# warnf_ FORMAT-STRING ARG1...
warnf_ ()
{
  warnf_format_=$1
  shift
  nl='
'
  case $* in
    *$nl*) me_=$(printf "$me"|tr "$nl|" '??')
       printf "$warnf_format_" "$@" | sed "s|^|$me_: |" ;;
    *) printf "$me: $warnf_format_" "$@" ;;
  esac >&2
}

# warn_ WORD1...
warn_ ()
{
  # If IFS does not start with ' ', set it and emit the warning in a subshell.
  case $IFS in
    ' '*) warnf_ '%s\n' "$*";;
    *)    (IFS=' '; warn_ "$@");;
  esac
}

# die WORD1...
die() { warn_ "$@"; exit 1; }

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# Configuration.

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# Name of the Makefile.am
gnulib_mk=gnulib.mk

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# List of gnulib modules needed.
gnulib_modules=

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# Any gnulib files needed that are not in modules.
gnulib_files=

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: ${AUTOPOINT=autopoint}
: ${AUTORECONF=autoreconf}

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# A function to be called right after gnulib-tool is run.
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# Override it via your own definition in bootstrap.conf.
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bootstrap_post_import_hook() { :; }
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# A function to be called after everything else in this script.
# Override it via your own definition in bootstrap.conf.
bootstrap_epilogue() { :; }

# The command to download all .po files for a specified domain into
# a specified directory.  Fill in the first %s is the domain name, and
# the second with the destination directory.  Use rsync's -L and -r
# options because the latest/%s directory and the .po files within are
# all symlinks.
po_download_command_format=\
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"rsync --delete --exclude '*.s1' -Lrtvz \
 'translationproject.org::tp/latest/%s/' '%s'"
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# Fallback for downloading .po files (if rsync fails).
po_download_command_format2=\
"wget --mirror -nd -q -np -A.po -P '%s' \
 http://translationproject.org/latest/%s/"

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# Prefer a non-empty tarname (4th argument of AC_INIT if given), else
# fall back to the package name (1st argument with munging)
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extract_package_name='
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  /^AC_INIT(\[*/{
     s///
     /^[^,]*,[^,]*,[^,]*,[ []*\([^][ ,)]\)/{
       s//\1/
       s/[],)].*//
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       p
       q
     }
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     s/[],)].*//
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     s/^GNU //
     y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/
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     s/[^abcdefghijklmnopqrstuvwxyz0123456789_]/-/g
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     p
  }
'
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package=$(sed -n "$extract_package_name" configure.ac) \
  || die 'cannot find package name in configure.ac'
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gnulib_name=lib$package

build_aux=build-aux
source_base=lib
m4_base=m4
doc_base=doc
tests_base=tests
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gnulib_extra_files=''
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# Additional gnulib-tool options to use.  Use "\newline" to break lines.
gnulib_tool_option_extras=

# Other locale categories that need message catalogs.
EXTRA_LOCALE_CATEGORIES=

# Additional xgettext options to use.  Use "\\\newline" to break lines.
XGETTEXT_OPTIONS='\\\
 --flag=_:1:pass-c-format\\\
 --flag=N_:1:pass-c-format\\\
 --flag=error:3:c-format --flag=error_at_line:5:c-format\\\
'

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# Package bug report address and copyright holder for gettext files
COPYRIGHT_HOLDER='Free Software Foundation, Inc.'
MSGID_BUGS_ADDRESS=bug-$package@gnu.org

# Files we don't want to import.
excluded_files=

# File that should exist in the top directory of a checked out hierarchy,
# but not in a distribution tarball.
checkout_only_file=README-hacking

# Whether to use copies instead of symlinks.
copy=false

# Set this to '.cvsignore .gitignore' in bootstrap.conf if you want
# those files to be generated in directories like lib/, m4/, and po/.
# Or set it to 'auto' to make this script select which to use based
# on which version control system (if any) is used in the source directory.
vc_ignore=auto

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# Set this to true in bootstrap.conf to enable --bootstrap-sync by
# default.
bootstrap_sync=false

# Use git to update gnulib sources
use_git=true

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# find_tool ENVVAR NAMES...
# -------------------------
# Search for a required program.  Use the value of ENVVAR, if set,
# otherwise find the first of the NAMES that can be run (i.e.,
# supports --version).  If found, set ENVVAR to the program name,
# die otherwise.
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#
# FIXME: code duplication, see also gnu-web-doc-update.
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find_tool ()
{
  find_tool_envvar=$1
  shift
  find_tool_names=$@
  eval "find_tool_res=\$$find_tool_envvar"
  if test x"$find_tool_res" = x; then
    for i
    do
      if ($i --version </dev/null) >/dev/null 2>&1; then
       find_tool_res=$i
       break
      fi
    done
  else
    find_tool_error_prefix="\$$find_tool_envvar: "
  fi
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  test x"$find_tool_res" != x \
    || die "one of these is required: $find_tool_names"
  ($find_tool_res --version </dev/null) >/dev/null 2>&1 \
    || die "${find_tool_error_prefix}cannot run $find_tool_res --version"
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  eval "$find_tool_envvar=\$find_tool_res"
  eval "export $find_tool_envvar"
}

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# Find sha1sum, named gsha1sum on MacPorts, and shasum on Mac OS X 10.6.
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find_tool SHA1SUM sha1sum gsha1sum shasum

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# Override the default configuration, if necessary.
# Make sure that bootstrap.conf is sourced from the current directory
# if we were invoked as "sh bootstrap".
case "$0" in
  */*) test -r "$0.conf" && . "$0.conf" ;;
  *) test -r "$0.conf" && . ./"$0.conf" ;;
esac

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# Extra files from gnulib, which override files from other sources.
test -z "${gnulib_extra_files}" && \
  gnulib_extra_files="
        $build_aux/install-sh
        $build_aux/mdate-sh
        $build_aux/texinfo.tex
        $build_aux/depcomp
        $build_aux/config.guess
        $build_aux/config.sub
        doc/INSTALL
"
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if test "$vc_ignore" = auto; then
  vc_ignore=
  test -d .git && vc_ignore=.gitignore
  test -d CVS && vc_ignore="$vc_ignore .cvsignore"
fi

# Translate configuration into internal form.

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# Parse options.

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for option
do
  case $option in
  --help)
    usage
    exit;;
  --gnulib-srcdir=*)
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    GNULIB_SRCDIR=${option#--gnulib-srcdir=};;
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  --skip-po)
    SKIP_PO=t;;
  --force)
    checkout_only_file=;;
  --copy)
    copy=true;;
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  --bootstrap-sync)
    bootstrap_sync=true;;
  --no-bootstrap-sync)
    bootstrap_sync=false;;
  --no-git)
    use_git=false;;
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  *)
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    die "$option: unknown option";;
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  esac
done

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$use_git || test -d "$GNULIB_SRCDIR" \
  || die "Error: --no-git requires --gnulib-srcdir"
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if test -n "$checkout_only_file" && test ! -r "$checkout_only_file"; then
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  die "Bootstrapping from a non-checked-out distribution is risky."
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fi

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# Strip blank and comment lines to leave significant entries.
gitignore_entries() {
  sed '/^#/d; /^$/d' "$@"
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}

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# If $STR is not already on a line by itself in $FILE, insert it at the start.
# Entries are inserted at the start of the ignore list to ensure existing
# entries starting with ! are not overridden.  Such entries support
# whitelisting exceptions after a more generic blacklist pattern.
insert_if_absent() {
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  file=$1
  str=$2
  test -f $file || touch $file
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  test -r $file || die "Error: failed to read ignore file: $file"
  duplicate_entries=$(gitignore_entries $file | sort | uniq -d)
  if [ "$duplicate_entries" ] ; then
    die "Error: Duplicate entries in $file: " $duplicate_entries
  fi
  linesold=$(gitignore_entries $file | wc -l)
  linesnew=$(echo "$str" | gitignore_entries - $file | sort -u | wc -l)
  if [ $linesold != $linesnew ] ; then
    { echo "$str" | cat - $file > $file.bak && mv $file.bak $file; } \
      || die "insert_if_absent $file $str: failed"
  fi
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}

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# Adjust $PATTERN for $VC_IGNORE_FILE and insert it with
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# insert_if_absent.
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insert_vc_ignore() {
  vc_ignore_file="$1"
  pattern="$2"
  case $vc_ignore_file in
  *.gitignore)
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    # A .gitignore entry that does not start with '/' applies
    # recursively to subdirectories, so prepend '/' to every
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    # .gitignore entry.
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    pattern=$(echo "$pattern" | sed s,^,/,);;
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  esac
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  insert_if_absent "$vc_ignore_file" "$pattern"
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}

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# Die if there is no AC_CONFIG_AUX_DIR($build_aux) line in configure.ac.
found_aux_dir=no
grep '^[	 ]*AC_CONFIG_AUX_DIR(\['"$build_aux"'\])' configure.ac \
    >/dev/null && found_aux_dir=yes
grep '^[	 ]*AC_CONFIG_AUX_DIR('"$build_aux"')' configure.ac \
    >/dev/null && found_aux_dir=yes
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test $found_aux_dir = yes \
  || die "configure.ac lacks 'AC_CONFIG_AUX_DIR([$build_aux])'; add it"
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# If $build_aux doesn't exist, create it now, otherwise some bits
# below will malfunction.  If creating it, also mark it as ignored.
if test ! -d $build_aux; then
  mkdir $build_aux
  for dot_ig in x $vc_ignore; do
    test $dot_ig = x && continue
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    insert_vc_ignore $dot_ig $build_aux
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  done
fi

# Note this deviates from the version comparison in automake
# in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a
# but this should suffice as we won't be specifying old
# version formats or redundant trailing .0 in bootstrap.conf.
# If we did want full compatibility then we should probably
# use m4_version_compare from autoconf.
sort_ver() { # sort -V is not generally available
  ver1="$1"
  ver2="$2"

  # split on '.' and compare each component
  i=1
  while : ; do
    p1=$(echo "$ver1" | cut -d. -f$i)
    p2=$(echo "$ver2" | cut -d. -f$i)
    if [ ! "$p1" ]; then
      echo "$1 $2"
      break
    elif [ ! "$p2" ]; then
      echo "$2 $1"
      break
    elif [ ! "$p1" = "$p2" ]; then
      if [ "$p1" -gt "$p2" ] 2>/dev/null; then # numeric comparison
        echo "$2 $1"
      elif [ "$p2" -gt "$p1" ] 2>/dev/null; then # numeric comparison
        echo "$1 $2"
      else # numeric, then lexicographic comparison
        lp=$(printf "$p1\n$p2\n" | LANG=C sort -n | tail -n1)
        if [ "$lp" = "$p2" ]; then
          echo "$1 $2"
        else
          echo "$2 $1"
        fi
      fi
      break
    fi
    i=$(($i+1))
  done
}

get_version() {
  app=$1

  $app --version >/dev/null 2>&1 || return 1

  $app --version 2>&1 |
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  sed -n '# Move version to start of line.
          s/.*[v ]\([0-9]\)/\1/

          # Skip lines that do not start with version.
          /^[0-9]/!d
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          # Remove characters after the version.
          s/[^.a-z0-9-].*//
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          # The first component must be digits only.
          s/^\([0-9]*\)[a-z-].*/\1/
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          #the following essentially does s/5.005/5.5/
          s/\.0*\([1-9]\)/.\1/g
          p
          q'
}

check_versions() {
  ret=0

  while read app req_ver; do
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    # We only need libtoolize from the libtool package.
    if test "$app" = libtool; then
      app=libtoolize
    fi
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    # Exempt git if --no-git is in effect.
    if test "$app" = git; then
      $use_git || continue
    fi
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    # Honor $APP variables ($TAR, $AUTOCONF, etc.)
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    appvar=$(echo $app | LC_ALL=C tr '[a-z]-' '[A-Z]_')
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    test "$appvar" = TAR && appvar=AMTAR
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    case $appvar in
        GZIP) ;; # Do not use $GZIP:  it contains gzip options.
        *) eval "app=\${$appvar-$app}" ;;
    esac
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    # Handle the still-experimental Automake-NG programs specially.
    # They remain named as the mainstream Automake programs ("automake",
    # and "aclocal") to avoid gratuitous incompatibilities with
    # pre-existing usages (by, say, autoreconf, or custom autogen.sh
    # scripts), but correctly identify themselves (as being part of
    # "GNU automake-ng") when asked their version.
    case $app in
      automake-ng|aclocal-ng)
        app=${app%-ng}
        ($app --version | grep '(GNU automake-ng)') >/dev/null 2>&1 || {
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          warn_ "Error: '$app' not found or not from Automake-NG"
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          ret=1
          continue
        } ;;
    esac
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    if [ "$req_ver" = "-" ]; then
      # Merely require app to exist; not all prereq apps are well-behaved
      # so we have to rely on $? rather than get_version.
      $app --version >/dev/null 2>&1
      if [ 126 -le $? ]; then
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        warn_ "Error: '$app' not found"
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        ret=1
      fi
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    else
      # Require app to produce a new enough version string.
      inst_ver=$(get_version $app)
      if [ ! "$inst_ver" ]; then
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        warn_ "Error: '$app' not found"
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        ret=1
      else
        latest_ver=$(sort_ver $req_ver $inst_ver | cut -d' ' -f2)
        if [ ! "$latest_ver" = "$inst_ver" ]; then
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          warnf_ '%s\n'                                        \
              "Error: '$app' version == $inst_ver is too old"  \
              "       '$app' version >= $req_ver is required"
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          ret=1
        fi
      fi
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    fi
  done

  return $ret
}

print_versions() {
  echo "Program    Min_version"
  echo "----------------------"
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  printf %s "$buildreq"
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  echo "----------------------"
  # can't depend on column -t
}

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use_libtool=0
# We'd like to use grep -E, to see if any of LT_INIT,
# AC_PROG_LIBTOOL, AM_PROG_LIBTOOL is used in configure.ac,
# but that's not portable enough (e.g., for Solaris).
grep '^[	 ]*A[CM]_PROG_LIBTOOL' configure.ac >/dev/null \
  && use_libtool=1
grep '^[	 ]*LT_INIT' configure.ac >/dev/null \
  && use_libtool=1
if test $use_libtool = 1; then
  find_tool LIBTOOLIZE glibtoolize libtoolize
fi

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# gnulib-tool requires at least automake and autoconf.
# If either is not listed, add it (with minimum version) as a prerequisite.
case $buildreq in
  *automake*) ;;
  *) buildreq="automake 1.9
$buildreq" ;;
esac
case $buildreq in
  *autoconf*) ;;
  *) buildreq="autoconf 2.59
$buildreq" ;;
esac

# When we can deduce that gnulib-tool will require patch,
# and when patch is not already listed as a prerequisite, add it, too.
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if test -d "$local_gl_dir" \
    && ! find "$local_gl_dir" -name '*.diff' -exec false {} +; then
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  case $buildreq in
    *patch*) ;;
    *) buildreq="patch -
$buildreq" ;;
  esac
fi

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if ! printf "$buildreq" | check_versions; then
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  echo >&2
  if test -f README-prereq; then
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    die "See README-prereq for how to get the prerequisite programs"
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  else
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    die "Please install the prerequisite programs"
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  fi
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fi

echo "$0: Bootstrapping from checked-out $package sources..."

# See if we can use gnulib's git-merge-changelog merge driver.
if test -d .git && (git --version) >/dev/null 2>/dev/null ; then
  if git config merge.merge-changelog.driver >/dev/null ; then
    :
  elif (git-merge-changelog --version) >/dev/null 2>/dev/null ; then
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    echo "$0: initializing git-merge-changelog driver"
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    git config merge.merge-changelog.name 'GNU-style ChangeLog merge driver'
    git config merge.merge-changelog.driver 'git-merge-changelog %O %A %B'
  else
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    echo "$0: consider installing git-merge-changelog from gnulib"
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  fi
fi


cleanup_gnulib() {
  status=$?
  rm -fr "$gnulib_path"
  exit $status
}

git_modules_config () {
  test -f .gitmodules && git config --file .gitmodules "$@"
}

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gnulib_path=$(git_modules_config submodule.gnulib.path)
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test -z "$gnulib_path" && gnulib_path=gnulib
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# Get gnulib files.
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case ${GNULIB_SRCDIR--} in
-)
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  if git_modules_config submodule.gnulib.url >/dev/null; then
    echo "$0: getting gnulib files..."
    git submodule init || exit $?
    git submodule update || exit $?

  elif [ ! -d "$gnulib_path" ]; then
    echo "$0: getting gnulib files..."

    trap cleanup_gnulib 1 2 13 15

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    shallow=
    git clone -h 2>&1 | grep -- --depth > /dev/null && shallow='--depth 2'
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    git clone $shallow git://git.sv.gnu.org/gnulib "$gnulib_path" ||
      cleanup_gnulib

    trap - 1 2 13 15
  fi
  GNULIB_SRCDIR=$gnulib_path
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  ;;
*)
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  # Use GNULIB_SRCDIR as a reference.
J
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  if test -d "$GNULIB_SRCDIR"/.git && \
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        git_modules_config submodule.gnulib.url >/dev/null; then
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    echo "$0: getting gnulib files..."
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    if git submodule -h|grep -- --reference > /dev/null; then
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      # Prefer the one-liner available in git 1.6.4 or newer.
      git submodule update --init --reference "$GNULIB_SRCDIR" \
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        "$gnulib_path" || exit $?
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    else
      # This fallback allows at least git 1.5.5.
      if test -f "$gnulib_path"/gnulib-tool; then
        # Since file already exists, assume submodule init already complete.
        git submodule update || exit $?
      else
        # Older git can't clone into an empty directory.
        rmdir "$gnulib_path" 2>/dev/null
        git clone --reference "$GNULIB_SRCDIR" \
          "$(git_modules_config submodule.gnulib.url)" "$gnulib_path" \
          && git submodule init && git submodule update \
          || exit $?
      fi
    fi
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    GNULIB_SRCDIR=$gnulib_path
627
  fi
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  ;;
629 630
esac

631 632 633
if $bootstrap_sync; then
  cmp -s "$0" "$GNULIB_SRCDIR/build-aux/bootstrap" || {
    echo "$0: updating bootstrap and restarting..."
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    case $(sh -c 'echo "$1"' -- a) in
      a) ignored=--;;
      *) ignored=ignored;;
    esac
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    exec sh -c \
      'cp "$1" "$2" && shift && exec "${CONFIG_SHELL-/bin/sh}" "$@"' \
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      $ignored "$GNULIB_SRCDIR/build-aux/bootstrap" \
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      "$0" "$@" --no-bootstrap-sync
  }
fi

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gnulib_tool=$GNULIB_SRCDIR/gnulib-tool
E
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<$gnulib_tool || exit $?
647

E
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# Get translations.

download_po_files() {
  subdir=$1
  domain=$2
653
  echo "$me: getting translations into $subdir for $domain..."
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  cmd=$(printf "$po_download_command_format" "$domain" "$subdir")
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  eval "$cmd" && return
  # Fallback to HTTP.
E
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  cmd=$(printf "$po_download_command_format2" "$subdir" "$domain")
E
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  eval "$cmd"
}

E
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# Mirror .po files to $po_dir/.reference and copy only the new
E
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# or modified ones into $po_dir.  Also update $po_dir/LINGUAS.
E
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# Note po files that exist locally only are left in $po_dir but will
# not be included in LINGUAS and hence will not be distributed.
E
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update_po_files() {
  # Directory containing primary .po files.
  # Overwrite them only when we're sure a .po file is new.
  po_dir=$1
  domain=$2

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  # Mirror *.po files into this dir.
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  # Usually contains *.s1 checksum files.
  ref_po_dir="$po_dir/.reference"

  test -d $ref_po_dir || mkdir $ref_po_dir || return
  download_po_files $ref_po_dir $domain \
    && ls "$ref_po_dir"/*.po 2>/dev/null |
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      sed 's|.*/||; s|\.po$||' > "$po_dir/LINGUAS" || return
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E
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  langs=$(cd $ref_po_dir && echo *.po | sed 's/\.po//g')
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  test "$langs" = '*' && langs=x
  for po in $langs; do
    case $po in x) continue;; esac
    new_po="$ref_po_dir/$po.po"
    cksum_file="$ref_po_dir/$po.s1"
    if ! test -f "$cksum_file" ||
        ! test -f "$po_dir/$po.po" ||
        ! $SHA1SUM -c --status "$cksum_file" \
            < "$new_po" > /dev/null; then
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      echo "$me: updated $po_dir/$po.po..."
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      cp "$new_po" "$po_dir/$po.po" \
          && $SHA1SUM < "$new_po" > "$cksum_file"
    fi
  done
}

case $SKIP_PO in
'')
  if test -d po; then
    update_po_files po $package || exit
  fi

  if test -d runtime-po; then
    update_po_files runtime-po $package-runtime || exit
  fi;;
esac

symlink_to_dir()
{
  src=$1/$2
  dst=${3-$2}

  test -f "$src" && {

    # If the destination directory doesn't exist, create it.
    # This is required at least for "lib/uniwidth/cjk.h".
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    dst_dir=$(dirname "$dst")
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    if ! test -d "$dst_dir"; then
      mkdir -p "$dst_dir"

      # If we've just created a directory like lib/uniwidth,
      # tell version control system(s) it's ignorable.
      # FIXME: for now, this does only one level
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      parent=$(dirname "$dst_dir")
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      for dot_ig in x $vc_ignore; do
        test $dot_ig = x && continue
        ig=$parent/$dot_ig
E
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        insert_vc_ignore $ig "${dst_dir##*/}"
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      done
    fi

    if $copy; then
      {
        test ! -h "$dst" || {
735
          echo "$me: rm -f $dst" &&
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          rm -f "$dst"
        }
      } &&
      test -f "$dst" &&
      cmp -s "$src" "$dst" || {
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        echo "$me: cp -fp $src $dst" &&
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        cp -fp "$src" "$dst"
      }
    else
E
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      # Leave any existing symlink alone, if it already points to the source,
      # so that broken build tools that care about symlink times
      # aren't confused into doing unnecessary builds.  Conversely, if the
      # existing symlink's time stamp is older than the source, make it afresh,
      # so that broken tools aren't confused into skipping needed builds.  See
      # <http://lists.gnu.org/archive/html/bug-gnulib/2011-05/msg00326.html>.
E
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      test -h "$dst" &&
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      src_ls=$(ls -diL "$src" 2>/dev/null) && set $src_ls && src_i=$1 &&
      dst_ls=$(ls -diL "$dst" 2>/dev/null) && set $dst_ls && dst_i=$1 &&
E
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      test "$src_i" = "$dst_i" &&
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      both_ls=$(ls -dt "$src" "$dst") &&
E
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      test "X$both_ls" = "X$dst$nl$src" || {
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        dot_dots=
        case $src in
        /*) ;;
        *)
          case /$dst/ in
          *//* | */../* | */./* | /*/*/*/*/*/)
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             die "invalid symlink calculation: $src -> $dst";;
          /*/*/*/*/)    dot_dots=../../../;;
          /*/*/*/)      dot_dots=../../;;
          /*/*/)        dot_dots=../;;
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          esac;;
        esac

770
        echo "$me: ln -fs $dot_dots$src $dst" &&
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        ln -fs "$dot_dots$src" "$dst"
      }
    fi
  }
}

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version_controlled_file() {
  parent=$1
  file=$2
  if test -d .git; then
    git rm -n "$file" > /dev/null 2>&1
  elif test -d .svn; then
    svn log -r HEAD "$file" > /dev/null 2>&1
  elif test -d CVS; then
    grep -F "/${file##*/}/" "$parent/CVS/Entries" 2>/dev/null |
             grep '^/[^/]*/[0-9]' > /dev/null
  else
788
    warn_ "no version control for $file?"
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    false
  fi
}

E
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# NOTE: we have to be careful to run both autopoint and libtoolize
# before gnulib-tool, since gnulib-tool is likely to provide newer
# versions of files "installed" by these two programs.
# Then, *after* gnulib-tool (see below), we have to be careful to
# run autoreconf in such a way that it does not run either of these
# two just-pre-run programs.
E
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E
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# Import from gettext.
with_gettext=yes
grep '^[	 ]*AM_GNU_GETTEXT_VERSION(' configure.ac >/dev/null || \
    with_gettext=no
E
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E
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if test $with_gettext = yes || test $use_libtool = 1; then
E
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E
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  tempbase=.bootstrap$$
  trap "rm -f $tempbase.0 $tempbase.1" 1 2 13 15
E
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E
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  > $tempbase.0 > $tempbase.1 &&
  find . ! -type d -print | sort > $tempbase.0 || exit

  if test $with_gettext = yes; then
    # Released autopoint has the tendency to install macros that have been
    # obsoleted in current gnulib, so run this before gnulib-tool.
    echo "$0: $AUTOPOINT --force"
    $AUTOPOINT --force || exit
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  fi
E
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  # Autoreconf runs aclocal before libtoolize, which causes spurious
  # warnings if the initial aclocal is confused by the libtoolized
  # (or worse out-of-date) macro directory.
  # libtoolize 1.9b added the --install option; but we support back
  # to libtoolize 1.5.22, where the install action was default.
  if test $use_libtool = 1; then
    install=
    case $($LIBTOOLIZE --help) in
      *--install*) install=--install ;;
    esac
    echo "running: $LIBTOOLIZE $install --copy"
    $LIBTOOLIZE $install --copy
  fi

  find . ! -type d -print | sort >$tempbase.1
  old_IFS=$IFS
  IFS=$nl
  for file in $(comm -13 $tempbase.0 $tempbase.1); do
    IFS=$old_IFS
    parent=${file%/*}
    version_controlled_file "$parent" "$file" || {
      for dot_ig in x $vc_ignore; do
        test $dot_ig = x && continue
        ig=$parent/$dot_ig
        insert_vc_ignore "$ig" "${file##*/}"
      done
    }
  done
  IFS=$old_IFS

  rm -f $tempbase.0 $tempbase.1
  trap - 1 2 13 15
fi
E
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# Import from gnulib.

E
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gnulib_tool_options="\
 --import\
 --no-changelog\
E
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 --aux-dir $build_aux\
 --doc-base $doc_base\
E
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 --lib $gnulib_name\
E
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 --m4-base $m4_base/\
 --source-base $source_base/\
 --tests-base $tests_base\
E
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 --local-dir $local_gl_dir\
E
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 $gnulib_tool_option_extras\
"
E
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if test $use_libtool = 1; then
  case "$gnulib_tool_options " in
    *' --libtool '*) ;;
    *) gnulib_tool_options="$gnulib_tool_options --libtool" ;;
  esac
fi
E
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echo "$0: $gnulib_tool $gnulib_tool_options --import ..."
E
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$gnulib_tool $gnulib_tool_options --import $gnulib_modules &&

for file in $gnulib_files; do
878 879
  symlink_to_dir "$GNULIB_SRCDIR" $file \
    || die "failed to symlink $file"
E
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done

882
bootstrap_post_import_hook \
883
  || die "bootstrap_post_import_hook failed"
884

E
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# Remove any dangling symlink matching "*.m4" or "*.[ch]" in some
# gnulib-populated directories.  Such .m4 files would cause aclocal to fail.
# The following requires GNU find 4.2.3 or newer.  Considering the usual
# portability constraints of this script, that may seem a very demanding
# requirement, but it should be ok.  Ignore any failure, which is fine,
# since this is only a convenience to help developers avoid the relatively
# unusual case in which a symlinked-to .m4 file is git-removed from gnulib
# between successive runs of this script.
find "$m4_base" "$source_base" \
  -depth \( -name '*.m4' -o -name '*.[ch]' \) \
  -type l -xtype l -delete > /dev/null 2>&1

E
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# Invoke autoreconf with --force --install to ensure upgrades of tools
# such as ylwrap.
AUTORECONFFLAGS="--verbose --install --force -I $m4_base $ACLOCAL_FLAGS"

901 902 903 904
# Some systems (RHEL 5) are using ancient autotools, for which the
# --no-recursive option had not been invented.  Detect that lack and
# omit the option when it's not supported.  FIXME in 2017: remove this
# hack when RHEL 5 autotools are updated, or when they become irrelevant.
E
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case $($AUTORECONF --help) in
E
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  *--no-recursive*) AUTORECONFFLAGS="$AUTORECONFFLAGS --no-recursive";;
E
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esac
908 909

# Tell autoreconf not to invoke autopoint or libtoolize; they were run above.
E
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echo "running: AUTOPOINT=true LIBTOOLIZE=true $AUTORECONF $AUTORECONFFLAGS"
AUTOPOINT=true LIBTOOLIZE=true $AUTORECONF $AUTORECONFFLAGS \
912
  || die "autoreconf failed"
E
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# Get some extra files from gnulib, overriding existing files.
for file in $gnulib_extra_files; do
  case $file in
  */INSTALL) dst=INSTALL;;
E
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  build-aux/*) dst=$build_aux/${file#build-aux/};;
E
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  *) dst=$file;;
  esac
921 922
  symlink_to_dir "$GNULIB_SRCDIR" $file $dst \
    || die "failed to symlink $file"
E
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done

if test $with_gettext = yes; then
  # Create gettext configuration.
  echo "$0: Creating po/Makevars from po/Makevars.template ..."
  rm -f po/Makevars
  sed '
    /^EXTRA_LOCALE_CATEGORIES *=/s/=.*/= '"$EXTRA_LOCALE_CATEGORIES"'/
    /^COPYRIGHT_HOLDER *=/s/=.*/= '"$COPYRIGHT_HOLDER"'/
    /^MSGID_BUGS_ADDRESS *=/s|=.*|= '"$MSGID_BUGS_ADDRESS"'|
    /^XGETTEXT_OPTIONS *=/{
      s/$/ \\/
      a\
          '"$XGETTEXT_OPTIONS"' $${end_of_xgettext_options+}
    }
938 939
  ' po/Makevars.template >po/Makevars \
    || die 'cannot generate po/Makevars'
E
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E
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  # If the 'gettext' module is in use, grab the latest Makefile.in.in.
  # If only the 'gettext-h' module is in use, assume autopoint already
  # put the correct version of this file into place.
  case $gnulib_modules in
  *gettext-h*) ;;
  *gettext*)
947 948
    cp $GNULIB_SRCDIR/build-aux/po/Makefile.in.in po/Makefile.in.in \
      || die "cannot create po/Makefile.in.in"
E
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    ;;
  esac
E
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E
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  if test -d runtime-po; then
    # Similarly for runtime-po/Makevars, but not quite the same.
    rm -f runtime-po/Makevars
    sed '
      /^DOMAIN *=.*/s/=.*/= '"$package"'-runtime/
      /^subdir *=.*/s/=.*/= runtime-po/
      /^MSGID_BUGS_ADDRESS *=/s/=.*/= bug-'"$package"'@gnu.org/
      /^XGETTEXT_OPTIONS *=/{
        s/$/ \\/
        a\
            '"$XGETTEXT_OPTIONS_RUNTIME"' $${end_of_xgettext_options+}
      }
964 965
    ' po/Makevars.template >runtime-po/Makevars \
    || die 'cannot generate runtime-po/Makevars'
E
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    # Copy identical files from po to runtime-po.
    (cd po && cp -p Makefile.in.in *-quot *.header *.sed *.sin ../runtime-po)
  fi
fi

bootstrap_epilogue

echo "$0: done.  Now you can run './configure'."

E
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# Local variables:
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC"
# time-stamp-end: "; # UTC"
E
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# End: