* bootstrap: Sync from gnulib.

* src/cmp.c: Don't include exit.h; no longer needed.
* src/diff.c: Likewise.
* src/sdiff.c: Likewise.
* src/dir.c: Don't include strcase.h; no longer needed.
* README-alpha: Remove, replacing with:
* README-hacking: New file, taken from coreutils with some changes.
The rename is required by the change to 'bootstrap'.

1 files changed, 272 insertions, 67 deletions

diff --git a/bootstrap b/bootstrap
index f895843..3294085 100755
--- a/bootstrap
+++ b/bootstrap
@@ -1,8 +1,8 @@
 #! /bin/sh
 
-# Bootstrap this package from CVS.
+# Bootstrap this package from checked-out sources.
 
-# Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+# Copyright (C) 2003, 2004, 2005, 2006, 2007 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
@@ -29,13 +29,42 @@ nl='
 LC_ALL=C
 export LC_ALL
 
+# Temporary directory names.
+bt='._bootmp'
+bt_regex=`echo "$bt"| sed 's/\./[.]/g'`
+bt2=${bt}2
+
+usage() {
+  echo >&2 "\
+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.
+ --copy                   Copy files instead of creating symbolic links.
+ --force                  Attempt to bootstrap even if the sources seem
+                          not to have been checked out.
+ --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
+contents are read as shell variables to configure the bootstrap.
+
+Running without arguments will suffice in most cases.
+"
+}
 
 # Configuration.
 
 # List of gnulib modules needed.
 gnulib_modules=
 
-# Any extra gnulib files needed.
+# Any gnulib files needed that are not in modules.
 gnulib_files=
 
 # Translation Project URL, for the registry of all projects
@@ -60,18 +89,20 @@ extract_package_name='
   }
 '
 package=`sed -n "$extract_package_name" configure.ac` || exit
-
-# Extra files from gnulib, which are not part of any module yet.
-gnulib_extra_files='
-	build-aux/install-sh
-	build-aux/missing
-	build-aux/mdate-sh
-	build-aux/texinfo.tex
-	build-aux/depcomp
-	build-aux/config.guess
-	build-aux/config.sub
+gnulib_name=lib$package
+
+build_aux=build-aux
+# 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
-'
+"
 
 # Other locale categories that need message catalogs.
 EXTRA_LOCALE_CATEGORIES=
@@ -86,6 +117,13 @@ XGETTEXT_OPTIONS='\\\
 # 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
+
 # Override the default configuration, if necessary.
 test -r bootstrap.conf && . ./bootstrap.conf
 
@@ -97,7 +135,7 @@ for option
 do
   case $option in
   --help)
-    echo "$0: usage: $0 [--gnulib-srcdir=DIR] [--cvs-user=USERNAME] [--skip-po]"
+    usage
     exit;;
   --gnulib-srcdir=*)
     GNULIB_SRCDIR=`expr "$option" : '--gnulib-srcdir=\(.*\)'`;;
@@ -105,13 +143,52 @@ do
     CVS_USER=`expr "$option" : '--cvs-user=\(.*\)'`;;
   --skip-po)
     SKIP_PO=t;;
+  --force)
+    checkout_only_file=;;
+  --copy)
+    copy=true;;
   *)
     echo >&2 "$0: $option: unknown option"
     exit 1;;
   esac
 done
 
-echo "$0: Bootstrapping CVS $package..."
+if test -n "$checkout_only_file" && test ! -r "$checkout_only_file"; then
+  echo "$0: Bootstrapping from a non-checked-out distribution is risky." >&2
+  exit 1
+fi
+
+# 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=$2
+  echo "$str" | sort -u - $file | cmp -s - $file \
+    || echo "$str" | sort -u - $file -o $file \
+    || exit 1
+}
+
+# Die if there is no AC_CONFIG_AUX_DIR($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
+if test $found_aux_dir = no; then
+  echo "$0: expected line not found in configure.ac. Add the following:" >&2
+  echo "  AC_CONFIG_AUX_DIR([$build_aux])" >&2.
+fi
+
+# 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 ig in .cvsignore .gitignore; do
+    test -f $ig && insert_sorted_if_absent $ig $build_aux
+  done
+fi
+
+echo "$0: Bootstrapping from checked-out $package sources..."
 
 cleanup_gnulib() {
   status=$?
@@ -137,7 +214,7 @@ case ${GNULIB_SRCDIR--} in
     esac
 
     case $CVS_RSH in
-    '') export CVS_RSH=ssh;;
+    '') CVS_RSH=ssh; export CVS_RSH;;
     esac
 
     trap cleanup_gnulib 1 2 13 15
@@ -205,13 +282,113 @@ case $SKIP_PO in
     WGET_COMMAND='';;
   esac
 
-  get_translations po $package || exit
+  if test -d po; then
+    get_translations po $package || exit
+  fi
 
   if test -d runtime-po; then
     get_translations runtime-po $package-runtime || exit
   fi;;
 esac
 
+symlink_to_gnulib()
+{
+  src=$GNULIB_SRCDIR/$1
+  dst=${2-$1}
+
+  test -f "$src" && {
+    if $copy; then
+      {
+	test ! -h "$dst" || {
+	  echo "$0: rm -f $dst" &&
+	  rm -f "$dst"
+	}
+      } &&
+      test -f "$dst" &&
+      cmp -s "$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" || {
+	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
+  }
+}
+
+cp_mark_as_generated()
+{
+  cp_src=$1
+  cp_dst=$2
+
+  if cmp -s "$cp_src" "$GNULIB_SRCDIR/$cp_dst"; then
+    symlink_to_gnulib "$cp_dst"
+  else
+    case $cp_dst in
+      *.[ch])             c1='/* '; c2=' */';;
+      *.texi)             c1='@c '; c2=     ;;
+      *.m4|*/Make*|Make*) c1='# ' ; c2=     ;;
+      *)                  c1=     ; c2=     ;;
+    esac
+
+    if test -z "$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" > "$cp_dst"
+      }
+    else
+      # Copy the file first to get proper permissions if it
+      # doesn't already exist.  Then overwrite the copy.
+      cp "$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"
+      ) > $cp_dst-t &&
+      if cmp -s "$cp_dst-t" "$cp_dst"; then
+	rm -f "$cp_dst-t"
+      else
+	echo "$0: cp $cp_src $cp_dst # with edits" &&
+	mv -f "$cp_dst-t" "$cp_dst"
+      fi
+    fi
+  fi
+}
+
+version_controlled_file() {
+  dir=$1
+  file=$2
+  found=no
+  if test -d CVS; then
+    grep -F "/$file/" $dir/CVS/Entries 2>/dev/null |
+	     grep '^/[^/]*/[0-9]' > /dev/null && found=yes
+  elif test -d .git; then
+    git-rm -n "$dir/$file" > /dev/null 2>&1 && found=yes
+  else
+    echo "$0: no version control for $dir/$file?" >&2
+  fi
+  test $found = yes
+}
 
 slurp() {
   for dir in . `(cd $1 && find * -type d -print)`; do
@@ -222,19 +399,22 @@ slurp() {
       for excluded_file in $excluded_files; do
 	test "$dir/$file" = "$excluded_file" && continue 2
       done
-      test -d $dir || mkdir $dir || exit
       if test $file = Makefile.am; then
-	copied=$copied${sep}gnulib.mk; sep=$nl
-	echo "$0: Copying $1/$dir/$file to $dir/gnulib.mk ..." &&
-	sed '/^[^#].*\/intl/s/^/#/' $1/$dir/$file >$dir/gnulib.mk
-      elif test -r ${2-no/such/dir}/$dir/$file ||
-	   grep -F "/$file/" $dir/CVS/Entries 2>/dev/null |
-	     grep -q '^/[^/]*/[0-9]'; then
+        copied=$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
+	}
+      elif { test "${2+set}" = set && test -r $2/$dir/$file; } ||
+	   version_controlled_file $dir $file; then
 	echo "$0: $dir/$file overrides $1/$dir/$file"
       else
 	copied=$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], [
@@ -244,24 +424,27 @@ slurp() {
 	      AC_DEFUN([gl_LOCK_EARLY], [])
 	  ' $1/$dir/$file >$dir/$file
 	else
-	  cp $1/$dir/$file $dir/$file
+	  cp_mark_as_generated $1/$dir/$file $dir/$file
 	fi
       fi || exit
     done
 
-    ig=$dir/.cvsignore
-    if test -n "$copied" && test -f $ig; then
-      echo "$copied" | sort -u - $ig | cmp -s - $ig ||
-      echo "$copied" | sort -u - $ig -o $ig || exit
-    fi
+    for dot_ig in .cvsignore .gitignore; do
+      ig=$dir/$dot_ig
+      if test -n "$copied" && test -f $ig; then
+	insert_sorted_if_absent $ig "$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.
+	f=`echo "$copied"|sed 's/_\.h$/.h/'`
+	insert_sorted_if_absent $ig "$f"
+      fi
+    done
   done
 }
 
 
 # Create boot temporary directories to import from gnulib and gettext.
-
-bt='.#bootmp'
-bt2=${bt}2
 rm -fr $bt $bt2 &&
 mkdir $bt $bt2 || exit
 
@@ -270,36 +453,52 @@ mkdir $bt $bt2 || exit
 gnulib_tool_options="\
  --import\
  --no-changelog\
- --aux-dir $bt/build-aux\
+ --aux-dir $bt/$build_aux\
  --doc-base $bt/doc\
- --lib lib$package\
+ --lib $gnulib_name\
  --m4-base $bt/m4/\
  --source-base $bt/lib/\
  --tests-base $bt/tests\
+ --local-dir gl\
 "
 echo "$0: $gnulib_tool $gnulib_tool_options --import ..."
 $gnulib_tool $gnulib_tool_options --import $gnulib_modules &&
 slurp $bt || exit
 
+for file in $gnulib_files; do
+  symlink_to_gnulib $file || exit
+done
+
 
 # Import from gettext.
+with_gettext=yes
+grep '^[	 ]*AM_GNU_GETTEXT_VERSION(' configure.ac >/dev/null || \
+    with_gettext=no
 
-echo "$0: (cd $bt2; autopoint) ..."
-cp configure.ac $bt2 &&
-(cd $bt2 && autopoint && rm configure.ac) &&
-slurp $bt2 $bt || exit
+if test $with_gettext = yes; then
+  echo "$0: (cd $bt2; autopoint) ..."
+  cp configure.ac $bt2 &&
+  (cd $bt2 && autopoint && rm configure.ac) &&
+  slurp $bt2 $bt || exit
 
-rm -fr $bt $bt2 || exit
+  rm -fr $bt $bt2 || exit
+fi
 
 
 # Reconfigure, getting other files.
 
 for command in \
+  libtool \
   'aclocal --force -I m4' \
   'autoconf --force' \
   'autoheader --force' \
   'automake --add-missing --copy --force-missing';
 do
+  if test "$command" = libtool; then
+    grep '^[	 ]*AM_PROG_LIBTOOL\>' configure.ac >/dev/null ||
+      continue
+    command='libtoolize -c -f'
+  fi
   echo "$0: $command ..."
   $command || exit
 done
@@ -308,38 +507,44 @@ done
 # Get some extra files from gnulib, overriding existing files.
 
 for file in $gnulib_extra_files; do
-  src=$GNULIB_SRCDIR/$file
   case $file in
-  */INSTALL) dest=.;;
-  *) dest=$file;;
+  */INSTALL) dst=INSTALL;;
+  *) dst=$file;;
   esac
-  echo "$0: cp -fp $GNULIB_SRCDIR/$file $dest" &&
-  cp -fp $GNULIB_SRCDIR/$file $dest || exit
+  symlink_to_gnulib $file $dst || exit
 done
 
-
-# Create gettext configuration.
-echo "$0: Creating po/Makevars from po/Makevars.template ..."
-sed '
-  /^EXTRA_LOCALE_CATEGORIES *=/s/=.*/= '"$EXTRA_LOCALE_CATEGORIES"'/
-  /^MSGID_BUGS_ADDRESS *=/s/=.*/= bug-'"$package"'@gnu.org/
-  /^XGETTEXT_OPTIONS *=/{
-    s/$/ \\/
-    a\
-	'"$XGETTEXT_OPTIONS"' $${end_of_xgettext_options+}
-  }
-' po/Makevars.template >po/Makevars
-
-if test -d runtime-po; then
-  # Likewise for runtime-po/Makevars, except also change a few other parameters.
+if test $with_gettext = yes; then
+  # Create gettext configuration.
+  echo "$0: Creating po/Makevars from po/Makevars.template ..."
+  rm -f po/Makevars
   sed '
-    s/^\(DOMAIN\) *=.*/\1 = '"$package"'-runtime/
-    s/^\(subdir\) *=.*/\1 = runtime-po/
-    s/^\(XGETTEXT_OPTIONS\) *=.*/\1 = '"$XGETTEXT_OPTIONS_RUNTIME"'/
-  ' <po/Makevars >runtime-po/Makevars
+    /^EXTRA_LOCALE_CATEGORIES *=/s/=.*/= '"$EXTRA_LOCALE_CATEGORIES"'/
+    /^MSGID_BUGS_ADDRESS *=/s/=.*/= bug-'"$package"'@gnu.org/
+    /^XGETTEXT_OPTIONS *=/{
+      s/$/ \\/
+      a\
+	  '"$XGETTEXT_OPTIONS"' $${end_of_xgettext_options+}
+    }
+  ' po/Makevars.template >po/Makevars
+
+  if test -d runtime-po; then
+    # Similarly for runtime-po/Makevars, but not quite the same.
+    rm -f runtime-po/Makevars
+    sed '
+      /^DOMAIN *=.*/s/=.*/= '"$package"'-runtime/
+      /^subdir *=.*/s/=.*/= runtime-po/
+      /^MSGID_BUGS_ADDRESS *=/s/=.*/= bug-'"$package"'@gnu.org/
+      /^XGETTEXT_OPTIONS *=/{
+	s/$/ \\/
+	a\
+	    '"$XGETTEXT_OPTIONS_RUNTIME"' $${end_of_xgettext_options+}
+      }
+    ' <po/Makevars.template >runtime-po/Makevars
 
-  # Copy identical files from po to runtime-po.
-  (cd po && cp -p Makefile.in.in *-quot *.header *.sed *.sin ../runtime-po)
+    # Copy identical files from po to runtime-po.
+    (cd po && cp -p Makefile.in.in *-quot *.header *.sed *.sin ../runtime-po)
+  fi
 fi
 
 echo "$0: done.  Now you can run './configure'."