build: use gnulib's new bootstrap_sync option.

[bison.git] / bootstrap

diff --git a/bootstrap b/bootstrap
index f92d1ccd8ef55b5ffe8918b74b0d760a231d90ff..dcd4773973dc0ba4b1230ccda1a101eca680243c 100755 (executable)
--- a/bootstrap
+++ b/bootstrap
@@ -1,9 +1,10 @@
 #! /bin/sh
 #! /bin/sh

+# Print a version string.
+scriptversion=2010-11-20.03; # UTC

 
 # Bootstrap this package from checked-out sources.
 
 
 # Bootstrap this package from checked-out sources.
 

-# Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation,
-# Inc.
+# Copyright (C) 2003-2010 Free Software Foundation, Inc.

 
 # 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
 
 # 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


@@ -18,13 +19,20 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 

-# Written by Paul Eggert.
+# 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.

 
 nl='
 '
 
 # Ensure file names are sorted consistently across platforms.
 
 nl='
 '
 
 # Ensure file names are sorted consistently across platforms.

-# Also, ensure diagnostics are in English, e.g., "wget --help" below.

 LC_ALL=C
 export LC_ALL
 
 LC_ALL=C
 export LC_ALL
 


@@ -36,28 +44,35 @@ bt_regex=`echo "$bt"| sed 's/\./[.]/g'`
 bt2=${bt}2
 
 usage() {
 bt2=${bt}2
 
 usage() {

-  echo >&2 "\
+  cat <<EOF

 Usage: $0 [OPTION]...
 Bootstrap this package from the checked-out sources.
 
 Options:
  --gnulib-srcdir=DIRNAME  Specify the local directory where gnulib
 Usage: $0 [OPTION]...
 Bootstrap this package from the checked-out sources.
 
 Options:
  --gnulib-srcdir=DIRNAME  Specify the local directory where gnulib

-                         sources reside.  Use this if you already
-                         have gnulib sources on your machine, and
-                         do not want to waste your bandwidth downloading
-                         them again.
+                          sources reside.  Use this if you already
+                          have gnulib sources on your machine, and
+                          do not want to waste your bandwidth downloading
+                          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 if
+                          defined.
+ --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
  --copy                   Copy files instead of creating symbolic links.
  --force                  Attempt to bootstrap even if the sources seem

-                         not to have been checked out.
+                          not to have been checked out.

  --skip-po                Do not download po files.
  --skip-po                Do not download po files.

- --cvs-user=USERNAME      Set the username to use when checking out
-                         sources from the gnulib repository.

 
 

-If the file bootstrap.conf exists in the current working directory, its
+If the file $0.conf exists in the same directory as this script, its

 contents are read as shell variables to configure the bootstrap.
 
 contents are read as shell variables to configure the bootstrap.
 

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

 Running without arguments will suffice in most cases.
 Running without arguments will suffice in most cases.

-"
+EOF

 }
 
 # Configuration.
 }
 
 # Configuration.


@@ -71,19 +86,29 @@ gnulib_modules=
 # Any gnulib files needed that are not in modules.
 gnulib_files=
 
 # Any gnulib files needed that are not in modules.
 gnulib_files=
 

+# A function to be called to edit gnulib.mk right after it's created.
+# Override it via your own definition in bootstrap.conf.
+gnulib_mk_hook() { :; }
+
+# 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=\
 # 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=\

-"rsync -Lrtvz 'translationproject.org::tp/latest/%s/' '%s'"
+"rsync --delete --exclude '*.s1' -Lrtvz \
+ 'translationproject.org::tp/latest/%s/' '%s'"

 
 extract_package_name='
   /^AC_INIT(/{
 
 extract_package_name='
   /^AC_INIT(/{

-     /.*,.*,.*,/{
+     /.*,.*,.*, */{

        s///
        s/[][]//g
        s///
        s/[][]//g

+       s/)$//

        p
        q
      }
        p
        q
      }


@@ -99,16 +124,21 @@ package=`sed -n "$extract_package_name" configure.ac` || exit
 gnulib_name=lib$package
 
 build_aux=build-aux
 gnulib_name=lib$package
 
 build_aux=build-aux

+source_base=lib
+m4_base=m4
+doc_base=doc
+tests_base=tests
+

 # Extra files from gnulib, which override files from other sources.
 gnulib_extra_files="
 # Extra files from gnulib, which override files from other sources.
 gnulib_extra_files="

-       $build_aux/install-sh
-       $build_aux/missing
-       $build_aux/mdate-sh
-       $build_aux/texinfo.tex
-       $build_aux/depcomp
-       $build_aux/config.guess
-       $build_aux/config.sub
-       doc/INSTALL
+        $build_aux/install-sh
+        $build_aux/missing
+        $build_aux/mdate-sh
+        $build_aux/texinfo.tex
+        $build_aux/depcomp
+        $build_aux/config.guess
+        $build_aux/config.sub
+        doc/INSTALL

 "
 
 # Additional gnulib-tool options to use.  Use "\newline" to break lines.
 "
 
 # Additional gnulib-tool options to use.  Use "\newline" to break lines.


@@ -124,6 +154,10 @@ XGETTEXT_OPTIONS='\\\
  --flag=error:3:c-format --flag=error_at_line:5:c-format\\\
 '
 
  --flag=error:3:c-format --flag=error_at_line:5:c-format\\\
 '
 

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


@@ -140,39 +174,56 @@ copy=false
 # on which version control system (if any) is used in the source directory.
 vc_ignore=auto
 
 # on which version control system (if any) is used in the source directory.
 vc_ignore=auto
 

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

 # find_tool ENVVAR NAMES...
 # -------------------------
 # 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.

 find_tool ()
 {
 find_tool ()
 {

-  # Find sha1sum, named gsha1sum on MacPorts.

   find_tool_envvar=$1
   shift
   find_tool_envvar=$1
   shift

-  if eval test x"\$$find_tool_envvar" = x; then
+  find_tool_names=$@
+  eval "find_tool_res=\$$find_tool_envvar"
+  if test x"$find_tool_res" = x; then

     for i
     do
       if ($i --version </dev/null) >/dev/null 2>&1; then
     for i
     do
       if ($i --version </dev/null) >/dev/null 2>&1; then

-       find_tool_res=$i
-       break
+       find_tool_res=$i
+       break

       fi
     done
       fi
     done

+  else
+    find_tool_error_prefix="\$$find_tool_envvar: "

   fi
   if test x"$find_tool_res" = x; then
   fi
   if test x"$find_tool_res" = x; then

-    echo >&2 "$0: $find_tool_name is required"
+    echo >&2 "$0: one of these is required: $find_tool_names"

     exit 1
   fi
   ($find_tool_res --version </dev/null) >/dev/null 2>&1 || {
     exit 1
   fi
   ($find_tool_res --version </dev/null) >/dev/null 2>&1 || {

-    echo >&2 "$0: cannot run $find_tool_res --version"
+    echo >&2 "$0: ${find_tool_error_prefix}cannot run $find_tool_res --version"

     exit 1
   }
     exit 1
   }

-  eval "$find_tool_envvar=\"$find_tool_res\""
+  eval "$find_tool_envvar=\$find_tool_res"

   eval "export $find_tool_envvar"
 }
 
   eval "export $find_tool_envvar"
 }
 

-# Find sha1sum, named gsha1sum on MacPorts.
-find_tool SHA1SUM sha1sum gsha1sum
+# Find sha1sum, named gsha1sum on MacPorts, and shasum on MacOS 10.6.
+find_tool SHA1SUM sha1sum gsha1sum shasum

 
 # Override the default configuration, if necessary.
 
 # Override the default configuration, if necessary.

-test -r bootstrap.conf && . ./bootstrap.conf
+# 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
+

 
 if test "$vc_ignore" = auto; then
   vc_ignore=
 
 if test "$vc_ignore" = auto; then
   vc_ignore=


@@ -191,15 +242,17 @@ do
     usage
     exit;;
   --gnulib-srcdir=*)
     usage
     exit;;
   --gnulib-srcdir=*)

-    GNULIB_SRCDIR=`expr "$option" : '--gnulib-srcdir=\(.*\)'`;;
-  --cvs-user=*)
-    CVS_USER=`expr "$option" : '--cvs-user=\(.*\)'`;;
+    GNULIB_SRCDIR=`expr "X$option" : 'X--gnulib-srcdir=\(.*\)'`;;

   --skip-po)
     SKIP_PO=t;;
   --force)
     checkout_only_file=;;
   --copy)
     copy=true;;
   --skip-po)
     SKIP_PO=t;;
   --force)
     checkout_only_file=;;
   --copy)
     copy=true;;

+  --bootstrap-sync)
+    bootstrap_sync=true;;
+  --no-bootstrap-sync)
+    bootstrap_sync=false;;

   *)
     echo >&2 "$0: $option: unknown option"
     exit 1;;
   *)
     echo >&2 "$0: $option: unknown option"
     exit 1;;


@@ -211,13 +264,13 @@ if test -n "$checkout_only_file" && test ! -r "$checkout_only_file"; then
   exit 1
 fi
 
   exit 1
 fi
 

-# If each line in $STR is not already on a line by itself in $FILE, insert it,
+# If $STR is not already on a line by itself in $FILE, insert it,

 # sorting the new contents of the file and replacing $FILE with the result.
 insert_sorted_if_absent() {
   file=$1
   str=$2
   test -f $file || touch $file
 # sorting the new contents of the file and replacing $FILE with the result.
 insert_sorted_if_absent() {
   file=$1
   str=$2
   test -f $file || touch $file

-  echo "$str" | sort -u - $file | cmp -s - $file \
+  echo "$str" | sort -u - $file | cmp - $file > /dev/null \

     || echo "$str" | sort -u - $file -o $file \
     || exit 1
 }
     || echo "$str" | sort -u - $file -o $file \
     || exit 1
 }


@@ -226,13 +279,13 @@ insert_sorted_if_absent() {
 # insert_sorted_if_absent.
 insert_vc_ignore() {
   vc_ignore_file="$1"
 # insert_sorted_if_absent.
 insert_vc_ignore() {
   vc_ignore_file="$1"

+  pattern="$2"

   case $vc_ignore_file in
   *.gitignore)
   case $vc_ignore_file in
   *.gitignore)

-    # A .gitignore entry that does not start with `/' applies recursively to
-    # subdirectories, so prepend `/' to every .gitignore entry.
-    pattern=`echo "$2" | sed s,^,/,`;;
-  *)
-    pattern="$2";;
+    # A .gitignore entry that does not start with `/' applies
+    # recursively to subdirectories, so prepend `/' to every
+    # .gitignore entry.
+    pattern=`echo "$pattern" | sed s,^,/,`;;

   esac
   insert_sorted_if_absent "$vc_ignore_file" "$pattern"
 }
   esac
   insert_sorted_if_absent "$vc_ignore_file" "$pattern"
 }


@@ -259,16 +312,132 @@ if test ! -d $build_aux; then
   done
 fi
 
   done
 fi
 

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

 
 

-cleanup_gnulib() {
-  status=$?
-  rm -fr gnulib
-  exit $status
+get_version() {
+  app=$1
+
+  $app --version >/dev/null 2>&1 || return 1
+
+  $app --version 2>&1 |
+  sed -n '# Move version to start of line.
+          s/.*[v ]\([0-9]\)/\1/
+
+          # Skip lines that do not start with version.
+          /^[0-9]/!d
+
+          # Remove characters after the version.
+          s/[^.a-z0-9-].*//
+
+          # The first component must be digits only.
+          s/^\([0-9]*\)[a-z-].*/\1/
+
+          #the following essentially does s/5.005/5.5/
+          s/\.0*\([1-9]\)/.\1/g
+          p
+          q'

 }
 
 }
 

-# See if we can use gnulib's git-merge-changelog merge driver.
+check_versions() {
+  ret=0
+
+  while read app req_ver; do
+    # We only need libtoolize from the libtool package.
+    if test "$app" = libtool; then
+      app=libtoolize
+    fi
+    # Honor $APP variables ($TAR, $AUTOCONF, etc.)
+    appvar=`echo $app | tr '[a-z]-' '[A-Z]_'`
+    test "$appvar" = TAR && appvar=AMTAR
+    eval "app=\${$appvar-$app}"
+    inst_ver=$(get_version $app)
+    if [ ! "$inst_ver" ]; then
+      echo "Error: '$app' not found" >&2
+      ret=1
+    elif [ ! "$req_ver" = "-" ]; then
+      latest_ver=$(sort_ver $req_ver $inst_ver | cut -d' ' -f2)
+      if [ ! "$latest_ver" = "$inst_ver" ]; then
+        echo "Error: '$app' version == $inst_ver is too old" >&2
+        echo "       '$app' version >= $req_ver is required" >&2
+        ret=1
+      fi
+    fi
+  done
+
+  return $ret
+}
+
+print_versions() {
+  echo "Program    Min_version"
+  echo "----------------------"
+  printf %s "$buildreq"
+  echo "----------------------"
+  # can't depend on column -t
+}

 
 

+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 $use_libtool = 1; then
+  find_tool LIBTOOLIZE glibtoolize libtoolize
+fi
+
+if ! printf "$buildreq" | check_versions; then
+  echo >&2
+  if test -f README-prereq; then
+    echo "See README-prereq for how to get the prerequisite programs" >&2
+  else
+    echo "Please install the prerequisite programs" >&2
+  fi
+  exit 1
+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
     :
 if test -d .git && (git --version) >/dev/null 2>/dev/null ; then
   if git config merge.merge-changelog.driver >/dev/null ; then
     :


@@ -281,37 +450,81 @@ if test -d .git && (git --version) >/dev/null 2>/dev/null ; then
   fi
 fi
 
   fi
 fi
 

+
+cleanup_gnulib() {
+  status=$?
+  rm -fr "$gnulib_path"
+  exit $status
+}
+
+git_modules_config () {
+  test -f .gitmodules && git config --file .gitmodules "$@"
+}
+
+gnulib_path=`git_modules_config submodule.gnulib.path`
+: ${gnulib_path=gnulib}
+

 # Get gnulib files.
 
 case ${GNULIB_SRCDIR--} in
 -)
 # Get gnulib files.
 
 case ${GNULIB_SRCDIR--} in
 -)

-  if [ ! -d gnulib ]; then
+  if git_modules_config submodule.gnulib.url >/dev/null; then

     echo "$0: getting gnulib files..."
     echo "$0: getting gnulib files..."

+    git submodule init || exit $?
+    git submodule update || exit $?

 
 

-    case ${CVS_AUTH-pserver} in
-    pserver)
-      CVS_PREFIX=':pserver:anonymous@';;
-    ssh)
-      CVS_PREFIX="$CVS_USER${CVS_USER+@}";;
-    *)
-      echo "$0: $CVS_AUTH: Unknown CVS access method" >&2
-      exit 1;;
-    esac
-
-    case $CVS_RSH in
-    '') CVS_RSH=ssh; export CVS_RSH;;
-    esac
+  elif [ ! -d "$gnulib_path" ]; then
+    echo "$0: getting gnulib files..."

 
     trap cleanup_gnulib 1 2 13 15
 
 
     trap cleanup_gnulib 1 2 13 15
 

-    cvs -z3 -q -d ${CVS_PREFIX}pserver.git.sv.gnu.org:/gnulib.git co -d gnulib HEAD ||
+    shallow=
+    git clone -h 2>&1 | grep -- --depth > /dev/null && shallow='--depth 2'
+    git clone $shallow git://git.sv.gnu.org/gnulib "$gnulib_path" ||

       cleanup_gnulib
 
     trap - 1 2 13 15
   fi
       cleanup_gnulib
 
     trap - 1 2 13 15
   fi

-  GNULIB_SRCDIR=gnulib
+  GNULIB_SRCDIR=$gnulib_path
+  ;;
+*)
+  # Use GNULIB_SRCDIR as a reference.
+  if test -d "$GNULIB_SRCDIR"/.git && \
+        git_modules_config submodule.gnulib.url >/dev/null; then
+    echo "$0: getting gnulib files..."
+    if git submodule -h|grep -- --reference > /dev/null; then
+      # Prefer the one-liner available in git 1.6.4 or newer.
+      git submodule update --init --reference "$GNULIB_SRCDIR" \
+        "$gnulib_path" || exit $?
+    else
+      # This fallback allows at least git 1.5.5.
+      if test -f "$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 $?
+      fi
+    fi
+    GNULIB_SRCDIR=$gnulib_path
+  fi
+  ;;

 esac
 
 esac
 

+if $bootstrap_sync; then
+  cmp -s "$0" "$GNULIB_SRCDIR/build-aux/bootstrap" || {
+    echo "$0: updating bootstrap and restarting..."
+    exec sh -c \
+      'cp "$1" "$2" && shift && exec "${CONFIG_SHELL-/bin/sh}" "$@"' \
+      -- "$GNULIB_SRCDIR/build-aux/bootstrap" \
+      "$0" "$@" --no-bootstrap-sync
+  }
+fi
+

 gnulib_tool=$GNULIB_SRCDIR/gnulib-tool
 <$gnulib_tool || exit
 
 gnulib_tool=$GNULIB_SRCDIR/gnulib-tool
 <$gnulib_tool || exit
 


@@ -325,30 +538,39 @@ download_po_files() {
   eval "$cmd"
 }
 
   eval "$cmd"
 }
 

-# Download .po files to $po_dir/.reference and copy only the new
+# Mirror .po files to $po_dir/.reference and copy only the new

 # or modified ones into $po_dir.  Also update $po_dir/LINGUAS.
 # or modified ones into $po_dir.  Also update $po_dir/LINGUAS.

+# 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.

 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
 
 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
 

-  # Download *.po files into this dir.
+  # Mirror *.po files into this dir.

   # 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 |
   # 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 |

-      sed 's|.*/||; s|\.po$||' > "$po_dir/LINGUAS"
-
-  for po in `cd $ref_po_dir && echo *.po|sed 's/\.po//g'`; do
-     new_po="$ref_po_dir/$po.po"
-     cksum_file="$ref_po_dir/$po.s1"
-     if ! "$SHA1SUM" -c --status "$cksum_file" < "$new_po" > /dev/null; then
-       echo "updated $po_dir/$po.po..."
-       cp "$new_po" "$po_dir/$po.po" && "$SHA1SUM" < "$new_po" > "$cksum_file"
-     fi
+      sed 's|.*/||; s|\.po$||' > "$po_dir/LINGUAS" || return
+
+  langs=`cd $ref_po_dir && echo *.po|sed 's/\.po//g'`
+  test "$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
+      echo "updated $po_dir/$po.po..."
+      cp "$new_po" "$po_dir/$po.po" \
+          && $SHA1SUM < "$new_po" > "$cksum_file"
+    fi

   done
 }
 
   done
 }
 


@@ -363,27 +585,6 @@ case $SKIP_PO in
   fi;;
 esac
 
   fi;;
 esac
 

-check_dst_dir()
-{
-  dst=$1
-  # If the destination directory doesn't exist, create it.
-  # This is required at least for "lib/uniwidth/cjk.h".
-  dst_dir=`dirname "$dst"`
-  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
-    parent=`dirname "$dst_dir"`
-    for dot_ig in x $vc_ignore; do
-      test $dot_ig = x && continue
-      ig=$parent/$dot_ig
-      insert_vc_ignore $ig `echo "$dst_dir"|sed 's,.*/,,'`
-    done
-  fi
-}
-

 symlink_to_dir()
 {
   src=$1/$2
 symlink_to_dir()
 {
   src=$1/$2


@@ -391,41 +592,56 @@ symlink_to_dir()
 
   test -f "$src" && {
 
 
   test -f "$src" && {
 

-    check_dst_dir "$dst"
+    # If the destination directory doesn't exist, create it.
+    # This is required at least for "lib/uniwidth/cjk.h".
+    dst_dir=`dirname "$dst"`
+    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
+      parent=`dirname "$dst_dir"`
+      for dot_ig in x $vc_ignore; do
+        test $dot_ig = x && continue
+        ig=$parent/$dot_ig
+        insert_vc_ignore $ig `echo "$dst_dir"|sed 's,.*/,,'`
+      done
+    fi

 
     if $copy; then
       {
 
     if $copy; then
       {

-       test ! -h "$dst" || {
-         echo "$0: rm -f $dst" &&
-         rm -f "$dst"
-       }
+        test ! -h "$dst" || {
+          echo "$0: rm -f $dst" &&
+          rm -f "$dst"
+        }

       } &&
       test -f "$dst" &&
       cmp -s "$src" "$dst" || {
       } &&
       test -f "$dst" &&
       cmp -s "$src" "$dst" || {

-       echo "$0: cp -fp $src $dst" &&
-       cp -fp "$src" "$dst"
+        echo "$0: cp -fp $src $dst" &&
+        cp -fp "$src" "$dst"

       }
     else
       test -h "$dst" &&
       src_ls=`ls -diL "$src" 2>/dev/null` && set $src_ls && src_i=$1 &&
       dst_ls=`ls -diL "$dst" 2>/dev/null` && set $dst_ls && dst_i=$1 &&
       test "$src_i" = "$dst_i" || {
       }
     else
       test -h "$dst" &&
       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=$1 &&
       test "$src_i" = "$dst_i" || {

-       dot_dots=
-       case $src in
-       /*) ;;
-       *)
-         case /$dst/ in
-         *//* | */../* | */./* | /*/*/*/*/*/)
-            echo >&2 "$0: invalid symlink calculation: $src -> $dst"
-            exit 1;;
-         /*/*/*/*/)    dot_dots=../../../;;
-         /*/*/*/)      dot_dots=../../;;
-         /*/*/)        dot_dots=../;;
-         esac;;
-       esac
-
-       echo "$0: ln -fs $dot_dots$src $dst" &&
-       ln -fs "$dot_dots$src" "$dst"
+        dot_dots=
+        case $src in
+        /*) ;;
+        *)
+          case /$dst/ in
+          *//* | */../* | */./* | /*/*/*/*/*/)
+             echo >&2 "$0: invalid symlink calculation: $src -> $dst"
+             exit 1;;
+          /*/*/*/*/)   dot_dots=../../../;;
+          /*/*/*/)     dot_dots=../../;;
+          /*/*/)       dot_dots=../;;
+          esac;;
+        esac
+
+        echo "$0: ln -fs $dot_dots$src $dst" &&
+        ln -fs "$dot_dots$src" "$dst"

       }
     fi
   }
       }
     fi
   }


@@ -448,27 +664,35 @@ cp_mark_as_generated()
       *)                  c1=     ; c2=     ;;
     esac
 
       *)                  c1=     ; c2=     ;;
     esac
 

+    # If the destination directory doesn't exist, create it.
+    # This is required at least for "lib/uniwidth/cjk.h".
+    dst_dir=`dirname "$cp_dst"`
+    test -d "$dst_dir" || mkdir -p "$dst_dir"
+

     if test -z "$c1"; then
       cmp -s "$cp_src" "$cp_dst" || {
     if test -z "$c1"; then
       cmp -s "$cp_src" "$cp_dst" || {

-       echo "$0: cp -f $cp_src $cp_dst" &&
-       rm -f "$cp_dst" &&
-       sed "s!$bt_regex/!!g" "$cp_src" > "$cp_dst"
+        # Copy the file first to get proper permissions if it
+        # doesn't already exist.  Then overwrite the copy.
+        echo "$0: cp -f $cp_src $cp_dst" &&
+        rm -f "$cp_dst" &&
+        cp "$cp_src" "$cp_dst-t" &&
+        sed "s!$bt_regex/!!g" "$cp_src" > "$cp_dst-t" &&
+        mv -f "$cp_dst-t" "$cp_dst"

       }
     else
       }
     else

-      check_dst_dir "$cp_dst"

       # Copy the file first to get proper permissions if it
       # doesn't already exist.  Then overwrite the copy.
       cp "$cp_src" "$cp_dst-t" &&
       (
       # Copy the file first to get proper permissions if it
       # doesn't already exist.  Then overwrite the copy.
       cp "$cp_src" "$cp_dst-t" &&
       (

-       echo "$c1-*- buffer-read-only: t -*- vi: set ro:$c2" &&
-       echo "${c1}DO NOT EDIT! GENERATED AUTOMATICALLY!$c2" &&
-       sed "s!$bt_regex/!!g" "$cp_src"
+        echo "$c1-*- buffer-read-only: t -*- vi: set ro:$c2" &&
+        echo "${c1}DO NOT EDIT! GENERATED AUTOMATICALLY!$c2" &&
+        sed "s!$bt_regex/!!g" "$cp_src"

       ) > $cp_dst-t &&
       if cmp -s "$cp_dst-t" "$cp_dst"; then
       ) > $cp_dst-t &&
       if cmp -s "$cp_dst-t" "$cp_dst"; then

-       rm -f "$cp_dst-t"
+        rm -f "$cp_dst-t"

       else
       else

-       echo "$0: cp $cp_src $cp_dst # with edits" &&
-       mv -f "$cp_dst-t" "$cp_dst"
+        echo "$0: cp $cp_src $cp_dst # with edits" &&
+        mv -f "$cp_dst-t" "$cp_dst"

       fi
     fi
   fi
       fi
     fi
   fi


@@ -480,9 +704,11 @@ version_controlled_file() {
   found=no
   if test -d CVS; then
     grep -F "/$file/" $dir/CVS/Entries 2>/dev/null |
   found=no
   if test -d CVS; then
     grep -F "/$file/" $dir/CVS/Entries 2>/dev/null |

-            grep '^/[^/]*/[0-9]' > /dev/null && found=yes
+             grep '^/[^/]*/[0-9]' > /dev/null && found=yes

   elif test -d .git; then
   elif test -d .git; then

-    git-rm -n "$dir/$file" > /dev/null 2>&1 && found=yes
+    git rm -n "$dir/$file" > /dev/null 2>&1 && found=yes
+  elif test -d .svn; then
+    svn log -r HEAD "$dir/$file" > /dev/null 2>&1 && found=yes

   else
     echo "$0: no version control for $dir/$file?" >&2
   fi
   else
     echo "$0: no version control for $dir/$file?" >&2
   fi


@@ -496,39 +722,42 @@ slurp() {
     for file in `ls -a $1/$dir`; do
       case $file in
       .|..) continue;;
     for file in `ls -a $1/$dir`; do
       case $file in
       .|..) continue;;

-      .*) continue;; # FIXME: should all file names starting with "." be ignored?
+      # FIXME: should all file names starting with "." be ignored?
+      .*) continue;;

       esac
       test -d $1/$dir/$file && continue
       for excluded_file in $excluded_files; do
       esac
       test -d $1/$dir/$file && continue
       for excluded_file in $excluded_files; do

-       test "$dir/$file" = "$excluded_file" && continue 2
+        test "$dir/$file" = "$excluded_file" && continue 2

       done
       done

-      if test $file = Makefile.am; then
-       copied=$copied${sep}$gnulib_mk; sep=$nl
-       remove_intl='/^[^#].*\/intl/s/^/#/;'"s!$bt_regex/!!g"
-       sed "$remove_intl" $1/$dir/$file | cmp -s - $dir/$gnulib_mk || {
-         echo "$0: Copying $1/$dir/$file to $dir/$gnulib_mk ..." &&
-         rm -f $dir/$gnulib_mk &&
-         sed "$remove_intl" $1/$dir/$file >$dir/$gnulib_mk
-       }
+      if test $file = Makefile.am && test "X$gnulib_mk" != XMakefile.am; then
+        copied=$copied${sep}$gnulib_mk; sep=$nl
+        remove_intl='/^[^#].*\/intl/s/^/#/;'"s!$bt_regex/!!g"
+        sed "$remove_intl" $1/$dir/$file |
+        cmp - $dir/$gnulib_mk > /dev/null || {
+          echo "$0: Copying $1/$dir/$file to $dir/$gnulib_mk ..." &&
+          rm -f $dir/$gnulib_mk &&
+          sed "$remove_intl" $1/$dir/$file >$dir/$gnulib_mk &&
+          gnulib_mk_hook $dir/$gnulib_mk
+        }

       elif { test "${2+set}" = set && test -r $2/$dir/$file; } ||
       elif { test "${2+set}" = set && test -r $2/$dir/$file; } ||

-          version_controlled_file $dir $file; then
-       echo "$0: $dir/$file overrides $1/$dir/$file"
+           version_controlled_file $dir $file; then
+        echo "$0: $dir/$file overrides $1/$dir/$file"

       else
       else

-       copied=$copied$sep$file; sep=$nl
-       if test $file = gettext.m4; then
-         echo "$0: patching m4/gettext.m4 to remove need for intl/* ..."
-         rm -f $dir/$file
-         sed '
-           /^AC_DEFUN(\[AM_INTL_SUBDIR],/,/^]/c\
-             AC_DEFUN([AM_INTL_SUBDIR], [
-           /^AC_DEFUN(\[gt_INTL_SUBDIR_CORE],/,/^]/c\
-             AC_DEFUN([gt_INTL_SUBDIR_CORE], [])
-           $a\
-             AC_DEFUN([gl_LOCK_EARLY], [])
-         ' $1/$dir/$file >$dir/$file
-       else
-         cp_mark_as_generated $1/$dir/$file $dir/$file
-       fi
+        copied=$copied$sep$file; sep=$nl
+        if test $file = gettext.m4; then
+          echo "$0: patching m4/gettext.m4 to remove need for intl/* ..."
+          rm -f $dir/$file
+          sed '
+            /^AC_DEFUN(\[AM_INTL_SUBDIR],/,/^]/c\
+              AC_DEFUN([AM_INTL_SUBDIR], [])
+            /^AC_DEFUN(\[gt_INTL_SUBDIR_CORE],/,/^]/c\
+              AC_DEFUN([gt_INTL_SUBDIR_CORE], [])
+            $a\
+              AC_DEFUN([gl_LOCK_EARLY], [])
+          ' $1/$dir/$file >$dir/$file
+        else
+          cp_mark_as_generated $1/$dir/$file $dir/$file
+        fi

       fi || exit
     done
 
       fi || exit
     done
 


@@ -536,18 +765,25 @@ slurp() {
       test $dot_ig = x && continue
       ig=$dir/$dot_ig
       if test -n "$copied"; then
       test $dot_ig = x && continue
       ig=$dir/$dot_ig
       if test -n "$copied"; then

-       insert_vc_ignore $ig "$copied"
-       # If an ignored file name ends with _.h, then also add
-       # the name with just ".h".  Many gnulib headers are generated,
-       # e.g., stdint_.h -> stdint.h, dirent_.h ->..., etc.
-       # Likewise for .gperf -> .h, .y -> .c, and .sin -> .sed
-       f=`echo "$copied"|sed 's/_\.h$/.h/;s/\.sin$/.sed/;s/\.y$/.c/;s/\.gperf$/.h/'`
-       insert_vc_ignore $ig "$f"
-
-       # For files like sys_stat_.h and sys_time_.h, record as
-       # ignorable the directory we might eventually create: sys/.
-       f=`echo "$copied"|sed 's/sys_.*_\.h$/sys/'`
-       insert_vc_ignore $ig "$f"
+        insert_vc_ignore $ig "$copied"
+        # If an ignored file name ends with .in.h, then also add
+        # the name with just ".h".  Many gnulib headers are generated,
+        # e.g., stdint.in.h -> stdint.h, dirent.in.h ->..., etc.
+        # Likewise for .gperf -> .h, .y -> .c, and .sin -> .sed
+        f=`echo "$copied" |
+          sed '
+            s/\.in\.h$/.h/
+            s/\.sin$/.sed/
+            s/\.y$/.c/
+            s/\.gperf$/.h/
+          '
+        `
+        insert_vc_ignore $ig "$f"
+
+        # For files like sys_stat.in.h and sys_time.in.h, record as
+        # ignorable the directory we might eventually create: sys/.
+        f=`echo "$copied"|sed 's/sys_.*\.in\.h$/sys/'`
+        insert_vc_ignore $ig "$f"

       fi
     done
   done
       fi
     done
   done


@@ -564,14 +800,20 @@ gnulib_tool_options="\
  --import\
  --no-changelog\
  --aux-dir $bt/$build_aux\
  --import\
  --no-changelog\
  --aux-dir $bt/$build_aux\

- --doc-base $bt/doc\
+ --doc-base $bt/$doc_base\

  --lib $gnulib_name\
  --lib $gnulib_name\

- --m4-base $bt/m4/\
- --source-base $bt/lib/\
- --tests-base $bt/tests\
+ --m4-base $bt/$m4_base/\
+ --source-base $bt/$source_base/\
+ --tests-base $bt/$tests_base\

  --local-dir $local_gl_dir\
  --local-dir $local_gl_dir\

-$gnulib_tool_option_extras\
+ $gnulib_tool_option_extras\

 "
 "

+if test $use_libtool = 1; then
+  case "$gnulib_tool_options " in
+    *' --libtool '*) ;;
+    *) gnulib_tool_options="$gnulib_tool_options --libtool" ;;
+  esac
+fi

 echo "$0: $gnulib_tool $gnulib_tool_options --import ..."
 $gnulib_tool $gnulib_tool_options --import $gnulib_modules &&
 slurp $bt || exit
 echo "$0: $gnulib_tool $gnulib_tool_options --import ..."
 $gnulib_tool $gnulib_tool_options --import $gnulib_modules &&
 slurp $bt || exit


@@ -587,46 +829,42 @@ grep '^[   ]*AM_GNU_GETTEXT_VERSION(' configure.ac >/dev/null || \
     with_gettext=no
 
 if test $with_gettext = yes; then
     with_gettext=no
 
 if test $with_gettext = yes; then

-  echo "$0: (cd $bt2; autopoint) ..."
+  echo "$0: (cd $bt2; ${AUTOPOINT-autopoint}) ..."

   cp configure.ac $bt2 &&
   cp configure.ac $bt2 &&

-  (cd $bt2 && autopoint && rm configure.ac) &&
+  (cd $bt2 && ${AUTOPOINT-autopoint} && rm configure.ac) &&

   slurp $bt2 $bt || exit
   slurp $bt2 $bt || exit

-
-  rm -fr $bt $bt2 || exit
-fi
-
-# Coreutils is unusual in that it generates some of its test-related
-# Makefile.am files.  That must be done before invoking automake.
-mam_template=tests/Makefile.am.in
-if test -f $mam_template; then
-  PERL=perl
-  for tool in cut head join pr sort tac tail test tr uniq wc; do
-    m=tests/$tool/Makefile.am
-    t=${m}t
-    rm -f $m $t
-    sed -n '1,/^##test-files-begin/p' $mam_template > $t
-    echo "x = $tool" >> $t
-    srcdir=tests/$tool
-    $PERL -I$srcdir -w -- tests/mk-script $srcdir --list >> $t
-    sed -n '/^##test-files-end/,$p' $mam_template >> $t
-    chmod -w $t
-    mv $t $m
-  done

 fi
 fi

+rm -fr $bt $bt2 || exit
+
+# Remove any dangling symlink matching "*.m4" or "*.[ch]" in some
+# gnulib-populated directories.  Such .m4 files would cause aclocal to fail.
+# The following requires GNU find 4.2.3 or newer.  Considering the usual
+# portability constraints of this script, that may seem a very demanding
+# requirement, but it should be ok.  Ignore any failure, which is fine,
+# since this is only a convenience to help developers avoid the relatively
+# unusual case in which a symlinked-to .m4 file is git-removed from gnulib
+# between successive runs of this script.
+find "$m4_base" "$source_base" \
+  -depth \( -name '*.m4' -o -name '*.[ch]' \) \
+  -type l -xtype l -delete > /dev/null 2>&1

 
 # Reconfigure, getting other files.
 
 
 # Reconfigure, getting other files.
 

+# Skip autoheader if it's not needed.
+grep -E '^[     ]*AC_CONFIG_HEADERS?\>' configure.ac >/dev/null ||
+  AUTOHEADER=true
+

 for command in \
   libtool \
 for command in \
   libtool \

-  'aclocal --force -I m4' \
-  'autoconf --force' \
-  'autoheader --force' \
-  'automake --add-missing --copy --force-missing';
+  "${ACLOCAL-aclocal} --force -I m4 $ACLOCAL_FLAGS" \
+  "${AUTOCONF-autoconf} --force" \
+  "${AUTOHEADER-autoheader} --force" \
+  "${AUTOMAKE-automake} --add-missing --copy --force-missing"

 do
   if test "$command" = libtool; then
 do
   if test "$command" = libtool; then

-    grep '^[    ]*AM_PROG_LIBTOOL\>' configure.ac >/dev/null ||
-      continue
-    command='libtoolize -c -f'
+    test $use_libtool = 0 \
+      && continue
+    command="${LIBTOOLIZE-libtoolize} -c -f"

   fi
   echo "$0: $command ..."
   $command || exit
   fi
   echo "$0: $command ..."
   $command || exit


@@ -649,13 +887,14 @@ if test $with_gettext = yes; then
   rm -f po/Makevars
   sed '
     /^EXTRA_LOCALE_CATEGORIES *=/s/=.*/= '"$EXTRA_LOCALE_CATEGORIES"'/
   rm -f po/Makevars
   sed '
     /^EXTRA_LOCALE_CATEGORIES *=/s/=.*/= '"$EXTRA_LOCALE_CATEGORIES"'/

-    /^MSGID_BUGS_ADDRESS *=/s/=.*/= bug-'"$package"'@gnu.org/
+    /^COPYRIGHT_HOLDER *=/s/=.*/= '"$COPYRIGHT_HOLDER"'/
+    /^MSGID_BUGS_ADDRESS *=/s|=.*|= '"$MSGID_BUGS_ADDRESS"'|

     /^XGETTEXT_OPTIONS *=/{
       s/$/ \\/
       a\
     /^XGETTEXT_OPTIONS *=/{
       s/$/ \\/
       a\

-         '"$XGETTEXT_OPTIONS"' $${end_of_xgettext_options+}
+          '"$XGETTEXT_OPTIONS"' $${end_of_xgettext_options+}

     }
     }

-  ' po/Makevars.template >po/Makevars
+  ' po/Makevars.template >po/Makevars || exit 1

 
   if test -d runtime-po; then
     # Similarly for runtime-po/Makevars, but not quite the same.
 
   if test -d runtime-po; then
     # Similarly for runtime-po/Makevars, but not quite the same.


@@ -665,15 +904,25 @@ if test $with_gettext = yes; then
       /^subdir *=.*/s/=.*/= runtime-po/
       /^MSGID_BUGS_ADDRESS *=/s/=.*/= bug-'"$package"'@gnu.org/
       /^XGETTEXT_OPTIONS *=/{
       /^subdir *=.*/s/=.*/= runtime-po/
       /^MSGID_BUGS_ADDRESS *=/s/=.*/= bug-'"$package"'@gnu.org/
       /^XGETTEXT_OPTIONS *=/{

-       s/$/ \\/
-       a\
-           '"$XGETTEXT_OPTIONS_RUNTIME"' $${end_of_xgettext_options+}
+        s/$/ \\/
+        a\
+            '"$XGETTEXT_OPTIONS_RUNTIME"' $${end_of_xgettext_options+}

       }
       }

-    ' <po/Makevars.template >runtime-po/Makevars
+    ' po/Makevars.template >runtime-po/Makevars || exit 1

 
     # Copy identical files from po to runtime-po.
     (cd po && cp -p Makefile.in.in *-quot *.header *.sed *.sin ../runtime-po)
   fi
 fi
 
 
     # 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'."
 echo "$0: done.  Now you can run './configure'."

+
+# 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"
+# End: