trunk

git-svn-id: svn://tug.org/texlive/trunk@10 c570f23f-e606-0410-a88d-b1316a301751

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diff --git a/Master/bin/i386-freebsd/texi2dvi b/Master/bin/i386-freebsd/texi2dvi
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--- /dev/null
+++ b/Master/bin/i386-freebsd/texi2dvi
@@ -0,0 +1,836 @@
+#! /bin/sh
+# texi2dvi --- produce DVI (or PDF) files from Texinfo (or LaTeX) sources.
+# $Id: texi2dvi,v 1.42 2005/02/11 13:35:14 karl Exp $
+#
+# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2001,
+# 2002, 2003, 2004, 2005 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
+# the Free Software Foundation; either version 2, 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
+# along with this program; if not, you can either send email to this
+# program's maintainer or write to: The Free Software Foundation,
+# Inc.; 59 Temple Place, Suite 330; Boston, MA 02111-1307, USA.
+#
+# Original author: Noah Friedman.
+#
+# Please send bug reports, etc. to bug-texinfo@gnu.org.
+# If possible, please send a copy of the output of the script called with
+# the `--debug' option when making a bug report.
+
+test -f /bin/ksh && test -z "$RUNNING_KSH" \
+  && { UNAMES=`uname -s`; test "x$UNAMES" = xULTRIX; } 2>/dev/null \
+  && { RUNNING_KSH=true; export RUNNING_KSH; exec /bin/ksh $0 ${1+"$@"}; }
+unset RUNNING_KSH
+
+# This string is expanded by rcs automatically when this file is checked out.
+rcs_revision='$Revision: 1.42 $'
+rcs_version=`set - $rcs_revision; echo $2`
+program=`echo $0 | sed -e 's!.*/!!'`
+version="texi2dvi (GNU Texinfo 4.8) $rcs_version
+
+Copyright (C) 2005 Free Software Foundation, Inc.
+There is NO warranty.  You may redistribute this software
+under the terms of the GNU General Public License.
+For more information about these matters, see the files named COPYING."
+
+usage="Usage: $program [OPTION]... FILE...
+
+Run each Texinfo or LaTeX FILE through TeX in turn until all
+cross-references are resolved, building all indices.  The directory
+containing each FILE is searched for included files.  The suffix of FILE
+is used to determine its language (LaTeX or Texinfo).
+
+Makeinfo is used to perform Texinfo macro expansion before running TeX
+when needed.
+
+Operation modes:
+  -b, --batch         no interaction
+  -c, --clean         remove all auxiliary files
+  -D, --debug         turn on shell debugging (set -x)
+  -h, --help          display this help and exit successfully
+  -o, --output=OFILE  leave output in OFILE (implies --clean);
+                      Only one input FILE may be specified in this case
+  -q, --quiet         no output unless errors (implies --batch)
+  -s, --silent        same as --quiet
+  -v, --version       display version information and exit successfully
+  -V, --verbose       report on what is done
+
+TeX tuning:
+  -@                   use @input instead of \input; for preloaded Texinfo
+  -e, -E, --expand     force macro expansion using makeinfo
+  -I DIR               search DIR for Texinfo files
+  -l, --language=LANG  specify the LANG of FILE (LaTeX or Texinfo)
+  -p, --pdf            use pdftex or pdflatex for processing
+  -r, --recode         call recode before TeX to translate input characters
+  -t, --command=CMD    insert CMD in copy of input file
+   or --texinfo=CMD    multiple values accumulate
+
+The values of the BIBTEX, LATEX (or PDFLATEX), MAKEINDEX, MAKEINFO,
+TEX (or PDFTEX), TEXINDEX, and THUMBPDF environment variables are used
+to run those commands, if they are set.  Any CMD strings are added
+after @setfilename for Texinfo input, in the first line for LaTeX input.
+
+Email bug reports to <bug-texinfo@gnu.org>,
+general questions and discussion to <help-texinfo@gnu.org>.
+Texinfo home page: http://www.gnu.org/software/texinfo/"
+
+# Initialize variables for option overriding and otherwise.
+# Don't use `unset' since old bourne shells don't have this command.
+# Instead, assign them an empty value.
+batch=false     # eval for batch mode
+clean=
+debug=
+escape='\'
+expand=         # t for expansion via makeinfo
+miincludes=     # makeinfo include path
+oformat=dvi
+oname=          # --output
+quiet=          # by default let the tools' message be displayed
+recode=false
+set_language=
+textra=         # Extra TeX commands to insert in the input file.
+textra_cmd=     # sed command to insert TEXTRA where appropriate
+tmpdir=${TMPDIR:-/tmp}/t2d$$  # avoid collisions on 8.3 filesystems.
+txincludes=     # TEXINPUTS extensions, with trailing colon
+txiprereq=19990129 # minimum texinfo.tex version with macro expansion
+verb=false      # echo for verbose mode
+
+orig_pwd=`pwd`
+
+# Systems which define $COMSPEC or $ComSpec use semicolons to separate
+# directories in TEXINPUTS -- except for Cygwin, where COMSPEC might be
+# inherited, but : is used.
+if test -n "$COMSPEC$ComSpec" && uname | grep -iv cygwin >/dev/null; then
+  path_sep=";"
+else
+  path_sep=":"
+fi
+
+# Pacify verbose cds.
+CDPATH=${ZSH_VERSION+.}$path_sep
+
+# In case someone crazy insists on using grep -E.
+: ${EGREP=egrep}
+
+# return true if program $1 is somewhere in PATH, else false.
+#
+findprog ()
+{
+  foundprog=false
+
+  saveIFS=$IFS
+  IFS=$path_sep  # break path components at the path separator
+  for dir in $PATH; do
+    # use test -x rather than test -f for DJGPP, where test -x checks
+    # for .exe.  But test -x will also return true for directories, so
+    # explicitly ignore those.
+    if test -x "$dir/$1" && test ! -d "$dir/$1"; then
+      foundprog=true
+      break
+
+    # But on cygwin, test -x foo will not find foo.exe.  So also check
+    # for that.
+    elif test -x "$dir/$1.exe"; then
+      foundprog=true
+      break      
+    fi
+  done
+  IFS=$saveIFS
+  $foundprog
+}
+
+# Report some information.
+report ()
+{
+  for i in "$@"
+  do
+    echo >&2 "$0: $i"
+  done
+}
+
+# Report some verbose information.
+verbose ()
+{
+  $verb >&2 "$0: $@"
+}
+
+# Report an error and exit with failure.
+fatal ()
+{
+  s=$1
+  shift
+  report "$@"
+  exit $s
+}
+
+# Save TEXINPUTS so we can construct a new TEXINPUTS path for each file.
+# Likewise for bibtex and makeindex.
+tex_envvars="BIBINPUTS BSTINPUTS INDEXSTYLE TEXINPUTS"
+for var in $tex_envvars; do
+  eval ${var}_orig=\$$var
+  export $var
+done
+
+
+# Push a token among the arguments that will be used to notice when we
+# ended options/arguments parsing.
+# Use "set dummy ...; shift" rather than 'set - ..." because on
+# Solaris set - turns off set -x (but keeps set -e).
+# Use ${1+"$@"} rather than "$@" because Digital Unix and Ultrix 4.3
+# still expand "$@" to a single argument (the empty string) rather
+# than nothing at all.
+arg_sep="$$--$$"
+set dummy ${1+"$@"} "$arg_sep"; shift
+
+# 
+# Parse command line arguments.
+while test x"$1" != x"$arg_sep"; do
+
+  # Handle --option=value by splitting apart and putting back on argv.
+  case "$1" in
+    --*=*)
+      opt=`echo "$1" | sed -e 's/=.*//'`
+      val=`echo "$1" | sed -e 's/[^=]*=//'`
+      shift
+      set dummy "$opt" "$val" ${1+"$@"}; shift
+      ;;
+  esac
+
+  # This recognizes --quark as --quiet.  So what.
+  case "$1" in
+    -@ ) escape=@;;
+    # Silently and without documentation accept -b and --b[atch] as synonyms.
+    -b | --b*) batch=true;;
+    -c | --c*) clean=t;;
+    -D | --d*) debug=t;;
+    -e | -E | --e*) expand=t;;
+    -h | --h*) echo "$usage"; exit 0;;
+    -I | --I*)
+      shift
+      miincludes="$miincludes -I $1"
+      txincludes="$txincludes$1$path_sep"
+      ;;
+    -l | --l*) shift; set_language=$1;;
+    -o | --o*)
+      shift
+      clean=t
+      case "$1" in
+        /* | ?:/*) oname=$1;;
+                *) oname="$orig_pwd/$1";;
+      esac;;
+    -p | --p*) oformat=pdf;;
+    -q | -s | --q* | --s*) quiet=t; batch=true;;
+    -r | --r*) recode=true;;
+    -t | --tex* | --com* ) shift; textra="$textra\\
+"`echo "$1" | sed 's/\\\\/\\\\\\\\/g'`;;
+    -v | --vers*) echo "$version"; exit 0;;
+    -V | --verb*) verb=echo;;
+    --) # What remains are not options.
+      shift
+      while test x"$1" != x"$arg_sep"; do
+        set dummy ${1+"$@"} "$1"; shift
+        shift
+      done
+      break;;
+    -*)
+      fatal 1 "Unknown or ambiguous option \`$1'." \
+              "Try \`--help' for more information."
+      ;;
+    *) set dummy ${1+"$@"} "$1"; shift;;
+   esac
+   shift
+done
+# Pop the token
+shift
+
+# Interpret remaining command line args as filenames.
+case $# in
+ 0)
+  fatal 2 "Missing file arguments." "Try \`--help' for more information."
+  ;;
+ 1) ;;
+ *)
+  if test -n "$oname"; then
+    fatal 2 "Can't use option \`--output' with more than one argument."
+  fi
+  ;;
+esac
+
+
+# We can't do much without tex.
+#
+if findprog ${TEX:-tex}; then :; else cat <<EOM
+You don't have a working TeX binary (${TEX:-tex}) installed anywhere in
+your PATH, and texi2dvi cannot proceed without one.  If you want to use
+this script, you'll need to install TeX (if you don't have it) or change
+your PATH or TEX environment variable (if you do).  See the --help
+output for more details.
+
+For information about obtaining TeX, please see http://www.tug.org.  If
+you happen to be using Debian, you can get it with this command:
+  apt-get install tetex-bin
+EOM
+  exit 1
+fi
+
+
+# We want to use etex (or pdftex) if they are available, and the user
+# didn't explicitly specify.  We don't check for elatex and pdfelatex
+# because (as of 2003), the LaTeX team has asked that new distributions
+# use etex by default anyway.
+#
+# End up with the TEX and PDFTEX variables set to what we are going to use.
+if test -z "$TEX"; then
+  if findprog etex; then TEX=etex; else TEX=tex; fi
+fi
+#
+if test -z "$PDFTEX"; then
+  if findprog pdfetex; then PDFTEX=pdfetex; else PDFTEX=pdftex; fi
+fi
+
+
+# Prepare the temporary directory.  Remove it at exit, unless debugging.
+if test -z "$debug"; then
+  trap "cd / && rm -rf $tmpdir" 0 1 2 15
+fi
+
+# Create the temporary directory with strict rights
+(umask 077 && mkdir $tmpdir) || exit 1
+
+# Prepare the tools we might need.  This may be extra work in some
+# cases, but improves the readability of the script.
+utildir=$tmpdir/utils
+mkdir $utildir || exit 1
+
+# A sed script that preprocesses Texinfo sources in order to keep the
+# iftex sections only.  We want to remove non TeX sections, and comment
+# (with `@c texi2dvi') TeX sections so that makeinfo does not try to
+# parse them.  Nevertheless, while commenting TeX sections, don't
+# comment @macro/@end macro so that makeinfo does propagate them.
+# Unfortunately makeinfo --iftex --no-ifinfo doesn't work well enough
+# (yet), makeinfo can't parse the TeX commands, so work around with sed.
+#
+comment_iftex_sed=$utildir/comment.sed
+cat <<EOF >$comment_iftex_sed
+/^@tex/,/^@end tex/{
+  s/^/@c texi2dvi/
+}
+/^@iftex/,/^@end iftex/{
+  s/^/@c texi2dvi/
+  /^@c texi2dvi@macro/,/^@c texi2dvi@end macro/{
+    s/^@c texi2dvi//
+  }
+}
+/^@ifnottex/,/^@end ifnottex/{
+  s/^/@c (texi2dvi)/
+}
+/^@ifinfo/,/^@end ifinfo/{
+  /^@node/p
+  /^@menu/,/^@end menu/p
+  t
+  s/^/@c (texi2dvi)/
+}
+s/^@ifnotinfo/@c texi2dvi@ifnotinfo/
+s/^@end ifnotinfo/@c texi2dvi@end ifnotinfo/
+EOF
+# Uncommenting is simple: Remove any leading `@c texi2dvi'.
+uncomment_iftex_sed=$utildir/uncomment.sed
+cat <<EOF >$uncomment_iftex_sed
+s/^@c texi2dvi//
+EOF
+
+# Compute the list of xref files.
+# Takes the filename (without extension) of which we look for xref
+# files as argument.  The index files must be reported last.
+get_xref_files ()
+{
+  # Get list of xref files (indexes, tables and lists).
+  # Find all files having root filename with a two-letter extension,
+  # saves the ones that are really Texinfo-related files.  .?o? catches
+  # many files: .toc, .log, LaTeX tables and lists, FiXme's .lox, maybe more.
+  for this_file in "$1".?o? "$1".aux "$1".?? "$1".idx; do
+    # If file is empty, skip it.
+    test -s "$this_file" || continue
+    # If the file is not suitable to be an index or xref file, don't
+    # process it.  It's suitable if the first character is a
+    # backslash or right quote or at, as long as the first line isn't
+    # \input texinfo.
+    first_character=`sed -n '1s/^\(.\).*$/\1/p;q' $this_file`
+    if (test "x$first_character" = "x\\" \
+        && sed 1q $this_file | grep -v '^\\input *texinfo' >/dev/null) \
+       || test "x$first_character" = "x'" \
+       || test "x$first_character" = "x@"; then
+      xref_files="$xref_files ./$this_file"
+    fi
+  done
+  echo "$xref_files"
+}
+
+# Convert relative paths to absolute paths, so we can run in another
+# directory (e.g., in --clean mode, or during the macro-support detection.)
+#
+# Empty path components are meaningful to tex.  We rewrite them
+# as `EMPTY' so they don't get lost when we split on $path_sep.
+# Hopefully no one will have an actual directory named EMPTY.
+absolute_filenames ()
+{
+  replace_empty="-e 's/^$path_sep/EMPTY$path_sep/g' \
+                 -e 's/$path_sep\$/${path_sep}EMPTY/g' \
+                 -e 's/$path_sep$path_sep/${path_sep}EMPTY:/g'"
+  _res=`echo "$1" | eval sed $replace_empty`
+  save_IFS=$IFS
+  IFS=$path_sep
+  set x $_res; shift
+  _res=.
+  for dir
+  do
+    case $dir in
+      EMPTY)
+        _res=$_res$path_sep
+        ;;
+      [\\/]* | ?:[\\/]*)        # Absolute paths don't need to be expanded.
+        _res=$_res$path_sep$dir
+        ;;
+      *)
+        abs=`cd "$dir" && pwd` && _res=$_res$path_sep$abs
+        ;;
+    esac
+  done
+  echo "$_res"
+}
+
+
+# run_tex ()
+# ----------
+# Run TeX as "$tex $tex_args $filename_input", taking care of errors
+# and logs.
+run_tex ()
+{
+  # Note that this will be used via an eval: quote properly.
+  cmd=$tex
+
+  # If possible, make TeX report error locations in GNU format.
+  tex_args=
+  case $tex_help in
+    *file-line-error*) cmd="$cmd --file-line-error";;
+  esac
+
+  # Tell TeX to be batch if requested.
+  if $batch; then
+    # \batchmode does not show terminal output at all, so we don't
+    # want that.  And even in batch mode, TeX insists on having input
+    # from the user.  Close its stdin to make it impossible.
+    cmd="$cmd </dev/null '${escape}nonstopmode' '${escape}input'"
+  fi
+
+  cmd="$cmd '$filename_input'"
+
+  verbose "Running $cmd ..."
+  if eval "$cmd" >&5; then :; else
+    test "$clean" = t \
+        && cp "$filename_noext.log" "$orig_pwd"
+    fatal 1 "$tex exited with bad status, quitting." \
+            "see $filename_noext.log for errors."
+  fi
+}
+
+# File descriptor usage:
+# 0 standard input
+# 1 standard output (--verbose messages)
+# 2 standard error
+# 3 some systems may open it to /dev/tty
+# 4 used on the Kubota Titan
+# 5 tools output (turned off by --quiet)
+# 6 tracing/debugging (set -x output, etc.)
+
+# Tools' output.  If quiet, discard, else redirect to the message flow.
+if test "$quiet" = t; then
+  exec 5>/dev/null
+else
+  exec 5>&1
+fi
+
+# Enable tracing
+if test "$debug" = t; then
+  exec 6>&1
+  set -x
+else
+  exec 6>/dev/null
+fi
+
+# 
+# TeXify files.
+
+for command_line_filename in ${1+"$@"}; do
+  verbose "Processing $command_line_filename ..."
+
+  # If the COMMAND_LINE_FILENAME is not absolute (e.g., --debug.tex),
+  # prepend `./' in order to avoid that the tools take it as an option.
+  echo "$command_line_filename" | $EGREP '^(/|[A-z]:/)' >&6 \
+  || command_line_filename="./$command_line_filename"
+
+  # See if the file exists.  If it doesn't we're in trouble since, even
+  # though the user may be able to reenter a valid filename at the tex
+  # prompt (assuming they're attending the terminal), this script won't
+  # be able to find the right xref files and so forth.
+  if test ! -r "$command_line_filename"; then
+    report "Could not read $command_line_filename, skipping."
+    continue
+  fi
+
+  # Get the name of the current directory.  We want the full path
+  # because in clean mode we are in tmp, in which case a relative
+  # path has no meaning.
+  filename_dir=`echo $command_line_filename | sed 's!/[^/]*$!!;s!^$!.!'`
+  filename_dir=`cd "$filename_dir" >/dev/null && pwd`
+
+  # Strip directory part but leave extension.
+  filename_ext=`basename "$command_line_filename"`
+  # Strip extension.
+  filename_noext=`echo "$filename_ext" | sed 's/\.[^.]*$//'`
+  ext=`echo "$filename_ext" | sed 's/^.*\.//'`
+
+  # _src.  Use same basename since we want to generate aux files with
+  # the same basename as the manual.  If --expand, then output the
+  # macro-expanded file to here, else copy the original file.
+  tmpdir_src=$tmpdir/src
+  filename_src=$tmpdir_src/$filename_noext.$ext
+
+  # _xtr.  The file with the user's extra commands.
+  tmpdir_xtr=$tmpdir/xtr
+  filename_xtr=$tmpdir_xtr/$filename_noext.$ext
+
+  # _rcd.  The Texinfo file recoded in 7bit.
+  tmpdir_rcd=$tmpdir/rcd
+  filename_rcd=$tmpdir_rcd/$filename_noext.$ext
+
+  # _bak.  Copies of the previous xref files (another round is run if
+  # they differ from the new one).
+  tmpdir_bak=$tmpdir/bak
+
+  # Make all those directories and give up if we can't succeed.
+  mkdir $tmpdir_src $tmpdir_xtr $tmpdir_rcd $tmpdir_bak || exit 1
+
+  # Source file might include additional sources.
+  # We want `.:$orig_pwd' before anything else.  (We'll add `.:' later
+  # after all other directories have been turned into absolute paths.)
+  # `.' goes first to ensure that any old .aux, .cps,
+  # etc. files in ${directory} don't get used in preference to fresher
+  # files in `.'.  Include orig_pwd in case we are in clean mode, where
+  # we've cd'd to a temp directory.
+  common="$orig_pwd$path_sep$filename_dir$path_sep$txincludes"
+  for var in $tex_envvars; do
+    eval ${var}="\$common\$${var}_orig"
+    export $var
+  done
+
+  # Convert relative paths to absolute paths, so we can run in another
+  # directory (e.g., in --clean mode, or during the macro-support detection.)
+  TEXINPUTS=`absolute_filenames "$TEXINPUTS"`
+  verbose "TEXINPUTS: $TEXINPUTS"
+  BIBINPUTS=`absolute_filenames "$BIBINPUTS"`
+  verbose "BIBINPUTS: $BIBINPUTS"
+  BSTINPUTS=`absolute_filenames "$BSTINPUTS"`
+  verbose "BSTINPUTS: $BSTINPUTS"
+  INDEXSTYLE=`absolute_filenames "$INDEXSTYLE"`
+  verbose "INDEXSTYLE: $INDEXSTYLE"
+
+  # If the user explicitly specified the language, use that.
+  # Otherwise, if the first line is \input texinfo, assume it's texinfo.
+  # Otherwise, guess from the file extension.
+  if test -n "$set_language"; then
+    language=$set_language
+  elif sed 1q "$command_line_filename" | grep 'input texinfo' >&6; then
+    language=texinfo
+  else
+    language=
+  fi
+
+  # Get the type of the file (latex or texinfo) from the given language
+  # we just guessed, or from the file extension if not set yet.
+  case ${language:-$filename_ext} in
+    [lL]a[tT]e[xX] | *.ltx | *.tex)
+      # Assume a LaTeX file.  LaTeX needs bibtex and uses latex for
+      # compilation.  No makeinfo.
+      language=latex
+      bibtex=${BIBTEX:-bibtex}
+      makeinfo= # no point in running makeinfo on latex source.
+      texindex=${MAKEINDEX:-makeindex}
+      textra_cmd=1i
+      if test $oformat = dvi; then
+        tex=${LATEX:-latex}
+      else
+        tex=${PDFLATEX:-pdflatex}
+      fi
+      thumbpdf=${THUMBPDF:-thumbpdf}
+      ;;
+
+    *)
+      # Assume a Texinfo file.  Texinfo files need makeinfo, texindex and tex.
+      language=texinfo
+      bibtex=
+      texindex=${TEXINDEX:-texindex}
+      textra_cmd='/^@setfilename/a'
+      if test $oformat = dvi; then
+        # MetaPost also uses the TEX environment variable.  If the user
+        # has set TEX=latex for that reason, don't bomb out.
+        if echo $TEX | grep 'latex$' >/dev/null; then
+          tex=tex  # don't bother trying to find etex
+        else
+          tex=$TEX
+        fi
+      else
+        tex=$PDFTEX
+      fi
+      # Unless required by the user, makeinfo expansion is wanted only
+      # if texinfo.tex is too old.
+      if test "$expand" = t; then
+        makeinfo=${MAKEINFO:-makeinfo}
+      else
+        # Check if texinfo.tex performs macro expansion by looking for
+        # its version.  The version is a date of the form YEAR-MO-DA.
+        # We don't need to use [0-9] to match the digits since anyway
+        # the comparison with $txiprereq, a number, will fail with non
+        # digits.
+        # Run in the tmpdir to avoid leaving files.
+	(
+           cd $tmpdir
+	   echo '\input texinfo.tex @bye' >txiversion.tex
+	   # Be sure that if tex wants to fail, it is not interactive:
+	   # close stdin.
+           $tex txiversion.tex </dev/null
+	) >$tmpdir/txiversion.out 2>$tmpdir/txiversion.err
+	if test $? != 0; then
+	  cat $tmpdir/txiversion.out
+	  cat $tmpdir/txiversion.err >&2
+	  fatal 1 "texinfo.tex appears to be broken, quitting."
+        fi
+	eval `sed -n 's/^.*\[\(.*\)version \(....\)-\(..\)-\(..\).*$/txiformat=\1 txiversion="\2\3\4"/p' $tmpdir/txiversion.out`
+        verbose "texinfo.tex preloaded as \`$txiformat', version is \`$txiversion' ..."
+        if test "$txiprereq" -le "$txiversion" >/dev/null 2>&1; then
+          makeinfo=
+        else
+          makeinfo=${MAKEINFO:-makeinfo}
+        fi
+        # As long as we had to run TeX, offer the user this convenience:
+        test "$txiformat" = Texinfo && escape=@
+      fi
+      thumbpdf=${THUMBPDF:-thumbpdf}
+      ;;
+  esac
+
+  # Go to $tmpdir to try --help, since old versions that don't accept
+  # --help will generate a texput.log.
+  tex_help=`cd $tmpdir >/dev/null && $tex --help </dev/null 2>&1`
+
+  # Expand macro commands in the original source file using Makeinfo.
+  # Always use `end' footnote style, since the `separate' style
+  #   generates different output (arguably this is a bug in -E).
+  # Discard main info output, the user asked to run TeX, not makeinfo.
+  if test -n "$makeinfo"; then
+    verbose "Macro-expanding $command_line_filename to $filename_src ..."
+    sed -f $comment_iftex_sed "$command_line_filename" \
+      | $makeinfo --footnote-style=end -I "$filename_dir" $miincludes \
+        -o /dev/null --macro-expand=- \
+      | sed -f $uncomment_iftex_sed >"$filename_src"
+    filename_input=$filename_src
+  fi
+
+  # If makeinfo failed (or was not even run), use the original file as input.
+  if test $? -ne 0 \
+     || test ! -r "$filename_src"; then
+    verbose "Reverting to $command_line_filename ..."
+    filename_input=$filename_dir/$filename_ext
+  fi
+
+  # Used most commonly for @finalout, @smallbook, etc.
+  if test -n "$textra"; then
+    verbose "Inserting extra commands: $textra"
+    sed "$textra_cmd\\
+$textra" "$filename_input" >"$filename_xtr"
+    filename_input=$filename_xtr
+  fi
+
+  # If this is a Texinfo file with a specified input encoding, and
+  # recode is available, then recode to plain 7 bit Texinfo.
+  if test $language = texinfo; then
+    pgm='s/^ *@documentencoding  *\([^ ][^ ]*\) *$/\1/
+	t found
+	d
+	:found
+	q'
+    encoding=`sed -e "$pgm" "$filename_input"`
+    if $recode && test -n "$encoding" && findprog recode; then
+      verbose "Recoding from $encoding to Texinfo."
+      if recode "$encoding"..texinfo <"$filename_input" >"$filename_rcd" \
+         && test -s "$filename_rcd"; then
+        filename_input=$filename_rcd
+      else
+        verbose "Recoding failed, using original input."
+      fi
+    fi
+  fi
+
+  # If clean mode was specified, then move to the temporary directory.
+  if test "$clean" = t; then
+    verbose "cd $tmpdir_src"
+    cd "$tmpdir_src" || exit 1
+  fi
+
+  while :; do # will break out of loop below
+    orig_xref_files=`get_xref_files "$filename_noext"`
+
+    # Save copies of originals for later comparison.
+    if test -n "$orig_xref_files"; then
+      verbose "Backing up xref files: `echo $orig_xref_files | sed 's|\./||g'`"
+      cp $orig_xref_files $tmpdir_bak
+    fi
+
+    # Run bibtex on current file.
+    # - If its input (AUX) exists.
+    # - If AUX contains both `\bibdata' and `\bibstyle'.
+    # - If some citations are missing (LOG contains `Citation').
+    #   or the LOG complains of a missing .bbl
+    #
+    # We run bibtex first, because I can see reasons for the indexes
+    # to change after bibtex is run, but I see no reason for the
+    # converse.
+    #
+    # Don't try to be too smart.  Running bibtex only if the bbl file
+    # exists and is older than the LaTeX file is wrong, since the
+    # document might include files that have changed.  Because there
+    # can be several AUX (if there are \include's), but a single LOG,
+    # looking for missing citations in LOG is easier, though we take
+    # the risk to match false messages.
+    if test -n "$bibtex" \
+       && test -r "$filename_noext.aux" \
+       && test -r "$filename_noext.log" \
+       && (grep '^\\bibdata[{]'  "$filename_noext.aux" \
+           && grep '^\\bibstyle[{]' "$filename_noext.aux" \
+           && (grep 'Warning:.*Citation.*undefined' "$filename_noext.log" \
+               || grep 'No file .*\.bbl\.' "$filename_noext.log")) \
+          >&6 2>&1; \
+    then
+      verbose "Running $bibtex $filename_noext ..."
+      $bibtex "$filename_noext" >&5 ||
+        fatal 1 "$bibtex exited with bad status, quitting."
+    fi
+
+    # What we'll run texindex on -- exclude non-index files.
+    # Since we know index files are last, it is correct to remove everything
+    # before .aux and .?o?.  But don't really do <anything>o<anything>
+    # -- don't match whitespace as <anything>.
+    # Otherwise, if orig_xref_files contains something like
+    #   foo.xo foo.whatever
+    # the space after the o will get matched.
+    index_files=`echo "$orig_xref_files" \
+                 | sed "s!.*\.aux!!g;
+                        s!./$filename_noext\.[^ ]o[^ ]!!g;
+                        s/^[ ]*//;s/[ ]*$//"`
+    # Run texindex (or makeindex) on current index files.  If they
+    # already exist, and after running TeX a first time the index
+    # files don't change, then there's no reason to run TeX again.
+    # But we won't know that if the index files are out of date or
+    # nonexistent.
+    if test -n "$texindex" && test -n "$index_files"; then
+      verbose "Running $texindex $index_files ..."
+      $texindex $index_files 2>&5 1>&2 ||
+         fatal 1 "$texindex exited with bad status, quitting."
+    fi
+
+    # Finally, run TeX.
+    run_tex
+
+    # Decide if looping again is needed.
+    finished=t
+
+    # LaTeX (and the package changebar) report in the LOG file if it
+    # should be rerun.  This is needed for files included from
+    # subdirs, since texi2dvi does not try to compare xref files in
+    # subdirs.  Performing xref files test is still good since LaTeX
+    # does not report changes in xref files.
+    if grep "Rerun to get" "$filename_noext.log" >&6 2>&1; then
+      finished=
+    fi
+
+    # Check if xref files changed.
+    new_xref_files=`get_xref_files "$filename_noext"`
+    verbose "Original xref files = `echo $orig_xref_files | sed 's|\./||g'`"
+    verbose "New xref files      = `echo $new_xref_files | sed 's|\./||g'`"
+
+    # If old and new lists don't at least have the same file list,
+    # then one file or another has definitely changed.
+    test "x$orig_xref_files" != "x$new_xref_files" && finished=
+
+    # File list is the same.  We must compare each file until we find
+    # a difference.
+    if test -n "$finished"; then
+      for this_file in $new_xref_files; do
+        verbose "Comparing xref file `echo $this_file | sed 's|\./||g'` ..."
+        # cmp -s returns nonzero exit status if files differ.
+        if cmp -s "$this_file" "$tmpdir_bak/$this_file"; then :; else
+          # We only need to keep comparing until we find one that
+          # differs, because we'll have to run texindex & tex again no
+          # matter how many more there might be.
+          finished=
+          verbose "xref file `echo $this_file | sed 's|\./||g'` differed ..."
+          test "$debug" = t && diff -c "$tmpdir_bak/$this_file" "$this_file"
+          break
+        fi
+      done
+    fi
+
+    # If finished, exit the loop, else rerun the loop.
+    test -n "$finished" && break
+  done # while :;
+
+  # If we were using thumbpdf and producing PDF, then run thumbpdf
+  # and TeX one last time.
+  if test $oformat = pdf \
+     && test -r "$filename_noext.log" \
+     && grep 'thumbpdf\.sty'  "$filename_noext.log" >&6 2>&1; \
+  then
+    verbose "Running $thumbpdf $filename_noext ..."
+    $thumbpdf "$filename_noext" >&5 ||
+      fatal 1 "$thumbpdf exited with bad status, quitting."
+    run_tex
+  fi
+
+
+  # If we were in clean mode, compilation was in a tmp directory.
+  # Copy the DVI (or PDF) file into the directory where the compilation
+  # has been done.  (The temp dir is about to get removed anyway.)
+  # We also return to the original directory so that
+  # - the next file is processed in correct conditions
+  # - the temporary file can be removed
+  if test -n "$clean"; then
+    if test -n "$oname"; then
+       dest=$oname
+    else
+       dest=$orig_pwd
+    fi
+    verbose "Copying $oformat file from `pwd` to $dest"
+    cp -p "./$filename_noext.$oformat" "$dest"
+    cd / # in case $orig_pwd is on a different drive (for DOS)
+    cd $orig_pwd || exit 1
+  fi
+
+  # Remove temporary files.
+  if test "x$debug" = "x"; then
+    verbose "Removing $tmpdir_src $tmpdir_xtr $tmpdir_bak ..."
+    cd /
+    rm -rf $tmpdir_src $tmpdir_xtr $tmpdir_bak
+  fi
+done
+
+verbose "done."
+exit 0 # exit successfully, not however we ended the loop.