This commit was manufactured by cvs2svn to create branch 'GNU'.

svn path=/branches/GNU/; revision=98

19 files changed, 5854 insertions, 0 deletions

diff --git a/support/argp-ba.c b/support/argp-ba.c
new file mode 100644
index 0000000..5d58cc6
--- /dev/null
+++ b/support/argp-ba.c
@@ -0,0 +1,26 @@
+/* Default definition for ARGP_PROGRAM_BUG_ADDRESS.
+   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Written by Miles Bader <miles@gnu.ai.mit.edu>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* If set by the user program, it should point to string that is the
+   bug-reporting address for the program.  It will be printed by argp_help if
+   the ARGP_HELP_BUG_ADDR flag is set (as it is by various standard help
+   messages), embedded in a sentence that says something like `Report bugs to
+   ADDR.'.  */
+const char *argp_program_bug_address = 0;
diff --git a/support/argp-eexst.c b/support/argp-eexst.c
new file mode 100644
index 0000000..9040058
--- /dev/null
+++ b/support/argp-eexst.c
@@ -0,0 +1,32 @@
+/* Default definition for ARGP_ERR_EXIT_STATUS
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Written by Miles Bader <miles@gnu.ai.mit.edu>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <sysexits.h>
+
+#include "argp.h"
+
+/* The exit status that argp will use when exiting due to a parsing error.
+   If not defined or set by the user program, this defaults to EX_USAGE from
+   <sysexits.h>.  */
+error_t argp_err_exit_status = EX_USAGE;
diff --git a/support/argp-fmtstream.c b/support/argp-fmtstream.c
new file mode 100644
index 0000000..0c9b311
--- /dev/null
+++ b/support/argp-fmtstream.c
@@ -0,0 +1,382 @@
+/* Word-wrapping and line-truncating streams
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Written by Miles Bader <miles@gnu.ai.mit.edu>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* This package emulates glibc `line_wrap_stream' semantics for systems that
+   don't have that.  */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <stdarg.h>
+#include <ctype.h>
+
+#include "argp-fmtstream.h"
+#include "argp-namefrob.h"
+
+#ifndef ARGP_FMTSTREAM_USE_LINEWRAP
+
+#ifndef isblank
+#define isblank(ch) ((ch)==' ' || (ch)=='\t')
+#endif
+
+#define INIT_BUF_SIZE 200
+#define PRINTF_SIZE_GUESS 150
+
+/* Return an argp_fmtstream that outputs to STREAM, and which prefixes lines
+   written on it with LMARGIN spaces and limits them to RMARGIN columns
+   total.  If WMARGIN >= 0, words that extend past RMARGIN are wrapped by
+   replacing the whitespace before them with a newline and WMARGIN spaces.
+   Otherwise, chars beyond RMARGIN are simply dropped until a newline.
+   Returns NULL if there was an error.  */
+argp_fmtstream_t
+__argp_make_fmtstream (FILE *stream,
+		       size_t lmargin, size_t rmargin, ssize_t wmargin)
+{
+  argp_fmtstream_t fs = malloc (sizeof (struct argp_fmtstream));
+  if (fs)
+    {
+      fs->stream = stream;
+
+      fs->lmargin = lmargin;
+      fs->rmargin = rmargin;
+      fs->wmargin = wmargin;
+      fs->point_col = 0;
+      fs->point_offs = 0;
+
+      fs->buf = malloc (INIT_BUF_SIZE);
+      if (! fs->buf)
+	{
+	  free (fs);
+	  fs = 0;
+	}
+      else
+	{
+	  fs->p = fs->buf;
+	  fs->end = fs->buf + INIT_BUF_SIZE;
+	}
+    }
+
+  return fs;
+}
+#ifdef weak_alias
+weak_alias (__argp_make_fmtstream, argp_make_fmtstream)
+#endif
+
+/* Flush FS to its stream, and free it (but don't close the stream).  */
+void
+__argp_fmtstream_free (argp_fmtstream_t fs)
+{
+  __argp_fmtstream_update (fs);
+  if (fs->p > fs->buf)
+    fwrite (fs->buf, 1, fs->p - fs->buf, fs->stream);
+  free (fs->buf);
+  free (fs);
+}
+#ifdef weak_alias
+weak_alias (__argp_fmtstream_free, argp_fmtstream_free)
+#endif
+
+/* Process FS's buffer so that line wrapping is done from POINT_OFFS to the
+   end of its buffer.  This code is mostly from glibc stdio/linewrap.c.  */
+void
+__argp_fmtstream_update (argp_fmtstream_t fs)
+{
+  char *buf, *nl;
+  size_t len;
+
+  /* Scan the buffer for newlines.  */
+  buf = fs->buf + fs->point_offs;
+  while (buf < fs->p)
+    {
+      size_t r;
+
+      if (fs->point_col == 0 && fs->lmargin != 0)
+	{
+	  /* We are starting a new line.  Print spaces to the left margin.  */
+	  const size_t pad = fs->lmargin;
+	  if (fs->p + pad < fs->end)
+	    {
+	      /* We can fit in them in the buffer by moving the
+		 buffer text up and filling in the beginning.  */
+	      memmove (buf + pad, buf, fs->p - buf);
+	      fs->p += pad; /* Compensate for bigger buffer. */
+	      memset (buf, ' ', pad); /* Fill in the spaces.  */
+	      buf += pad; /* Don't bother searching them.  */
+	    }
+	  else
+	    {
+	      /* No buffer space for spaces.  Must flush.  */
+	      size_t i;
+	      for (i = 0; i < pad; i++)
+		putc (' ', fs->stream);
+	    }
+	  fs->point_col = pad;
+	}
+
+      len = fs->p - buf;
+      nl = memchr (buf, '\n', len);
+
+      if (fs->point_col < 0)
+	fs->point_col = 0;
+
+      if (!nl)
+	{
+	  /* The buffer ends in a partial line.  */
+
+	  if (fs->point_col + len < fs->rmargin)
+	    {
+	      /* The remaining buffer text is a partial line and fits
+		 within the maximum line width.  Advance point for the
+		 characters to be written and stop scanning.  */
+	      fs->point_col += len;
+	      break;
+	    }
+	  else
+	    /* Set the end-of-line pointer for the code below to
+	       the end of the buffer.  */
+	    nl = fs->p;
+	}
+      else if (fs->point_col + (nl - buf) < (ssize_t) fs->rmargin)
+	{
+	  /* The buffer contains a full line that fits within the maximum
+	     line width.  Reset point and scan the next line.  */
+	  fs->point_col = 0;
+	  buf = nl + 1;
+	  continue;
+	}
+
+      /* This line is too long.  */
+      r = fs->rmargin - 1;
+
+      if (fs->wmargin < 0)
+	{
+	  /* Truncate the line by overwriting the excess with the
+	     newline and anything after it in the buffer.  */
+	  if (nl < fs->p)
+	    {
+	      memmove (buf + (r - fs->point_col), nl, fs->p - nl);
+	      fs->p -= buf + (r - fs->point_col) - nl;
+	      /* Reset point for the next line and start scanning it.  */
+	      fs->point_col = 0;
+	      buf += r + 1; /* Skip full line plus \n. */
+	    }
+	  else
+	    {
+	      /* The buffer ends with a partial line that is beyond the
+		 maximum line width.  Advance point for the characters
+		 written, and discard those past the max from the buffer.  */
+	      fs->point_col += len;
+	      fs->p -= fs->point_col - r;
+	      break;
+	    }
+	}
+      else
+	{
+	  /* Do word wrap.  Go to the column just past the maximum line
+	     width and scan back for the beginning of the word there.
+	     Then insert a line break.  */
+
+	  char *p, *nextline;
+	  int i;
+
+	  p = buf + (r + 1 - fs->point_col);
+	  while (p >= buf && !isblank (*p))
+	    --p;
+	  nextline = p + 1;	/* This will begin the next line.  */
+
+	  if (nextline > buf)
+	    {
+	      /* Swallow separating blanks.  */
+	      if (p > buf)
+		do
+		  --p;
+		while (p > buf && isblank (*p));
+	      nl = p + 1;	/* The newline will replace the first blank. */
+	    }
+	  else
+	    {
+	      /* A single word that is greater than the maximum line width.
+		 Oh well.  Put it on an overlong line by itself.  */
+	      p = buf + (r + 1 - fs->point_col);
+	      /* Find the end of the long word.  */
+	      do
+		++p;
+	      while (p < nl && !isblank (*p));
+	      if (p == nl)
+		{
+		  /* It already ends a line.  No fussing required.  */
+		  fs->point_col = 0;
+		  buf = nl + 1;
+		  continue;
+		}
+	      /* We will move the newline to replace the first blank.  */
+	      nl = p;
+	      /* Swallow separating blanks.  */
+	      do
+		++p;
+	      while (isblank (*p));
+	      /* The next line will start here.  */
+	      nextline = p;
+	    }
+
+	  /* Note: There are a bunch of tests below for
+	     NEXTLINE == BUF + LEN + 1; this case is where NL happens to fall
+	     at the end of the buffer, and NEXTLINE is in fact empty (and so
+	     we need not be careful to maintain its contents).  */
+
+	  if (nextline == buf + len + 1
+	      ? fs->end - nl < fs->wmargin + 1
+	      : nextline - (nl + 1) < fs->wmargin)
+	    /* The margin needs more blanks than we removed.  */
+	    if (fs->end - fs->p > fs->wmargin + 1)
+	      /* Make some space for them.  */
+	      {
+		size_t mv = fs->p - nextline;
+		memmove (nl + 1 + fs->wmargin, nextline, mv);
+		nextline = nl + 1 + fs->wmargin;
+		len = nextline + mv - buf;
+		*nl++ = '\n';
+	      }
+	    else
+	      /* Output the first line so we can use the space.  */
+	      {
+		if (nl > fs->buf)
+		  fwrite (fs->buf, 1, nl - fs->buf, fs->stream);
+		putc ('\n', fs->stream);
+		len += buf - fs->buf;
+		nl = buf = fs->buf;
+	      }
+	  else
+	    /* We can fit the newline and blanks in before
+	       the next word.  */
+	    *nl++ = '\n';
+
+	  if (nextline - nl >= fs->wmargin
+	      || (nextline == buf + len + 1 && fs->end - nextline >= fs->wmargin))
+	    /* Add blanks up to the wrap margin column.  */
+	    for (i = 0; i < fs->wmargin; ++i)
+	      *nl++ = ' ';
+	  else
+	    for (i = 0; i < fs->wmargin; ++i)
+	      putc (' ', fs->stream);
+
+	  /* Copy the tail of the original buffer into the current buffer
+	     position.  */
+	  if (nl < nextline)
+	    memmove (nl, nextline, buf + len - nextline);
+	  len -= nextline - buf;
+
+	  /* Continue the scan on the remaining lines in the buffer.  */
+	  buf = nl;
+
+	  /* Restore bufp to include all the remaining text.  */
+	  fs->p = nl + len;
+
+	  /* Reset the counter of what has been output this line.  If wmargin
+	     is 0, we want to avoid the lmargin getting added, so we set
+	     point_col to a magic value of -1 in that case.  */
+	  fs->point_col = fs->wmargin ? fs->wmargin : -1;
+	}
+    }
+
+  /* Remember that we've scanned as far as the end of the buffer.  */
+  fs->point_offs = fs->p - fs->buf;
+}
+
+/* Ensure that FS has space for AMOUNT more bytes in its buffer, either by
+   growing the buffer, or by flushing it.  True is returned iff we succeed. */
+int
+__argp_fmtstream_ensure (struct argp_fmtstream *fs, size_t amount)
+{
+  if ((size_t) (fs->end - fs->p) < amount)
+    {
+      ssize_t wrote;
+
+      /* Flush FS's buffer.  */
+      __argp_fmtstream_update (fs);
+
+      wrote = fwrite (fs->buf, 1, fs->p - fs->buf, fs->stream);
+      if (wrote == fs->p - fs->buf)
+	{
+	  fs->p = fs->buf;
+	  fs->point_offs = 0;
+	}
+      else
+	{
+	  fs->p -= wrote;
+	  fs->point_offs -= wrote;
+	  memmove (fs->buf, fs->buf + wrote, fs->p - fs->buf);
+	  return 0;
+	}
+
+      if ((size_t) (fs->end - fs->buf) < amount)
+	/* Gotta grow the buffer.  */
+	{
+	  size_t new_size = fs->end - fs->buf + amount;
+	  char *new_buf = realloc (fs->buf, new_size);
+
+	  if (! new_buf)
+	    {
+	      __set_errno (ENOMEM);
+	      return 0;
+	    }
+
+	  fs->buf = new_buf;
+	  fs->end = new_buf + new_size;
+	  fs->p = fs->buf;
+	}
+    }
+
+  return 1;
+}
+
+ssize_t
+__argp_fmtstream_printf (struct argp_fmtstream *fs, const char *fmt, ...)
+{
+  int out;
+  size_t size_guess = PRINTF_SIZE_GUESS; /* How much space to reserve. */
+
+  do
+    {
+      va_list args;
+
+      if (! __argp_fmtstream_ensure (fs, size_guess))
+	return -1;
+      size_guess += size_guess;
+
+      va_start (args, fmt);
+      out = __vsnprintf (fs->p, fs->end - fs->p, fmt, args);
+      va_end (args);
+    }
+  while (out == -1);
+
+  fs->p += out;
+
+  return out;
+}
+#ifdef weak_alias
+weak_alias (__argp_fmtstream_printf, argp_fmtstream_printf)
+#endif
+
+#endif /* !ARGP_FMTSTREAM_USE_LINEWRAP */
diff --git a/support/argp-fmtstream.h b/support/argp-fmtstream.h
new file mode 100644
index 0000000..d1a262a
--- /dev/null
+++ b/support/argp-fmtstream.h
@@ -0,0 +1,297 @@
+/* Word-wrapping and line-truncating streams.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Written by Miles Bader <miles@gnu.ai.mit.edu>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* This package emulates glibc `line_wrap_stream' semantics for systems that
+   don't have that.  If the system does have it, it is just a wrapper for
+   that.  This header file is only used internally while compiling argp, and
+   shouldn't be installed.  */
+
+#ifndef __ARGP_FMTSTREAM_H__
+#define __ARGP_FMTSTREAM_H__
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#if    (_LIBC - 0 && !defined (USE_IN_LIBIO)) \
+    || (defined (__GNU_LIBRARY__) && defined (HAVE_LINEWRAP_H))
+/* line_wrap_stream is available, so use that.  */
+#define ARGP_FMTSTREAM_USE_LINEWRAP
+#endif
+
+#ifdef ARGP_FMTSTREAM_USE_LINEWRAP
+/* Just be a simple wrapper for line_wrap_stream; the semantics are
+   *slightly* different, as line_wrap_stream doesn't actually make a new
+   object, it just modifies the given stream (reversibly) to do
+   line-wrapping.  Since we control who uses this code, it doesn't matter.  */
+
+#include <linewrap.h>
+
+typedef FILE *argp_fmtstream_t;
+
+#define argp_make_fmtstream line_wrap_stream
+#define __argp_make_fmtstream line_wrap_stream
+#define argp_fmtstream_free line_unwrap_stream
+#define __argp_fmtstream_free line_unwrap_stream
+
+#define __argp_fmtstream_putc(fs,ch) putc(ch,fs)
+#define argp_fmtstream_putc(fs,ch) putc(ch,fs)
+#define __argp_fmtstream_puts(fs,str) fputs(str,fs)
+#define argp_fmtstream_puts(fs,str) fputs(str,fs)
+#define __argp_fmtstream_write(fs,str,len) fwrite(str,1,len,fs)
+#define argp_fmtstream_write(fs,str,len) fwrite(str,1,len,fs)
+#define __argp_fmtstream_printf fprintf
+#define argp_fmtstream_printf fprintf
+
+#define __argp_fmtstream_lmargin line_wrap_lmargin
+#define argp_fmtstream_lmargin line_wrap_lmargin
+#define __argp_fmtstream_set_lmargin line_wrap_set_lmargin
+#define argp_fmtstream_set_lmargin line_wrap_set_lmargin
+#define __argp_fmtstream_rmargin line_wrap_rmargin
+#define argp_fmtstream_rmargin line_wrap_rmargin
+#define __argp_fmtstream_set_rmargin line_wrap_set_rmargin
+#define argp_fmtstream_set_rmargin line_wrap_set_rmargin
+#define __argp_fmtstream_wmargin line_wrap_wmargin
+#define argp_fmtstream_wmargin line_wrap_wmargin
+#define __argp_fmtstream_set_wmargin line_wrap_set_wmargin
+#define argp_fmtstream_set_wmargin line_wrap_set_wmargin
+#define __argp_fmtstream_point line_wrap_point
+#define argp_fmtstream_point line_wrap_point
+
+#else /* !ARGP_FMTSTREAM_USE_LINEWRAP */
+/* Guess we have to define our own version.  */
+
+#ifndef __const
+#define __const const
+#endif
+
+struct argp_fmtstream
+{
+  FILE *stream;			/* The stream we're outputting to.  */
+
+  size_t lmargin, rmargin;	/* Left and right margins.  */
+  ssize_t wmargin;		/* Margin to wrap to, or -1 to truncate.  */
+
+  /* Point in buffer to which we've processed for wrapping, but not output.  */
+  size_t point_offs;
+  /* Output column at POINT_OFFS, or -1 meaning 0 but don't add lmargin.  */
+  ssize_t point_col;
+
+  char *buf;			/* Output buffer.  */
+  char *p;			/* Current end of text in BUF. */
+  char *end;			/* Absolute end of BUF.  */
+};
+
+typedef struct argp_fmtstream *argp_fmtstream_t;
+
+/* Return an argp_fmtstream that outputs to STREAM, and which prefixes lines
+   written on it with LMARGIN spaces and limits them to RMARGIN columns
+   total.  If WMARGIN >= 0, words that extend past RMARGIN are wrapped by
+   replacing the whitespace before them with a newline and WMARGIN spaces.
+   Otherwise, chars beyond RMARGIN are simply dropped until a newline.
+   Returns NULL if there was an error.  */
+extern argp_fmtstream_t __argp_make_fmtstream (FILE *__stream,
+					       size_t __lmargin,
+					       size_t __rmargin,
+					       ssize_t __wmargin);
+extern argp_fmtstream_t argp_make_fmtstream (FILE *__stream,
+					     size_t __lmargin,
+					     size_t __rmargin,
+					     ssize_t __wmargin);
+
+/* Flush __FS to its stream, and free it (but don't close the stream).  */
+extern void __argp_fmtstream_free (argp_fmtstream_t __fs);
+extern void argp_fmtstream_free (argp_fmtstream_t __fs);
+
+extern ssize_t __argp_fmtstream_printf (argp_fmtstream_t __fs,
+				       __const char *__fmt, ...)
+     __attribute__ ((__format__ (printf, 2, 3)));
+extern ssize_t argp_fmtstream_printf (argp_fmtstream_t __fs,
+				      __const char *__fmt, ...)
+     __attribute__ ((__format__ (printf, 2, 3)));
+
+extern int __argp_fmtstream_putc (argp_fmtstream_t __fs, int __ch);
+extern int argp_fmtstream_putc (argp_fmtstream_t __fs, int __ch);
+
+extern int __argp_fmtstream_puts (argp_fmtstream_t __fs, __const char *__str);
+extern int argp_fmtstream_puts (argp_fmtstream_t __fs, __const char *__str);
+
+extern size_t __argp_fmtstream_write (argp_fmtstream_t __fs,
+				      __const char *__str, size_t __len);
+extern size_t argp_fmtstream_write (argp_fmtstream_t __fs,
+				    __const char *__str, size_t __len);
+
+/* Access macros for various bits of state.  */
+#define argp_fmtstream_lmargin(__fs) ((__fs)->lmargin)
+#define argp_fmtstream_rmargin(__fs) ((__fs)->rmargin)
+#define argp_fmtstream_wmargin(__fs) ((__fs)->wmargin)
+#define __argp_fmtstream_lmargin argp_fmtstream_lmargin
+#define __argp_fmtstream_rmargin argp_fmtstream_rmargin
+#define __argp_fmtstream_wmargin argp_fmtstream_wmargin
+
+/* Set __FS's left margin to LMARGIN and return the old value.  */
+extern size_t argp_fmtstream_set_lmargin (argp_fmtstream_t __fs,
+					  size_t __lmargin);
+extern size_t __argp_fmtstream_set_lmargin (argp_fmtstream_t __fs,
+					    size_t __lmargin);
+
+/* Set __FS's right margin to __RMARGIN and return the old value.  */
+extern size_t argp_fmtstream_set_rmargin (argp_fmtstream_t __fs,
+					  size_t __rmargin);
+extern size_t __argp_fmtstream_set_rmargin (argp_fmtstream_t __fs,
+					    size_t __rmargin);
+
+/* Set __FS's wrap margin to __WMARGIN and return the old value.  */
+extern size_t argp_fmtstream_set_wmargin (argp_fmtstream_t __fs,
+					  size_t __wmargin);
+extern size_t __argp_fmtstream_set_wmargin (argp_fmtstream_t __fs,
+					    size_t __wmargin);
+
+/* Return the column number of the current output point in __FS.  */
+extern size_t argp_fmtstream_point (argp_fmtstream_t __fs);
+extern size_t __argp_fmtstream_point (argp_fmtstream_t __fs);
+
+/* Internal routines.  */
+extern void _argp_fmtstream_update (argp_fmtstream_t __fs);
+extern void __argp_fmtstream_update (argp_fmtstream_t __fs);
+extern int _argp_fmtstream_ensure (argp_fmtstream_t __fs, size_t __amount);
+extern int __argp_fmtstream_ensure (argp_fmtstream_t __fs, size_t __amount);
+
+#ifdef __OPTIMIZE__
+/* Inline versions of above routines.  */
+
+#if !_LIBC
+#define __argp_fmtstream_putc argp_fmtstream_putc
+#define __argp_fmtstream_puts argp_fmtstream_puts
+#define __argp_fmtstream_write argp_fmtstream_write
+#define __argp_fmtstream_set_lmargin argp_fmtstream_set_lmargin
+#define __argp_fmtstream_set_rmargin argp_fmtstream_set_rmargin
+#define __argp_fmtstream_set_wmargin argp_fmtstream_set_wmargin
+#define __argp_fmtstream_point argp_fmtstream_point
+#define __argp_fmtstream_update _argp_fmtstream_update
+#define __argp_fmtstream_ensure _argp_fmtstream_ensure
+#endif
+
+#ifndef ARGP_FS_EI
+#define ARGP_FS_EI extern inline
+#endif
+
+ARGP_FS_EI size_t
+__argp_fmtstream_write (argp_fmtstream_t __fs,
+			__const char *__str, size_t __len)
+{
+  if (__fs->p + __len <= __fs->end || __argp_fmtstream_ensure (__fs, __len))
+    {
+      memcpy (__fs->p, __str, __len);
+      __fs->p += __len;
+      return __len;
+    }
+  else
+    return 0;
+}
+
+ARGP_FS_EI int
+__argp_fmtstream_puts (argp_fmtstream_t __fs, __const char *__str)
+{
+  size_t __len = strlen (__str);
+  if (__len)
+    {
+      size_t __wrote = __argp_fmtstream_write (__fs, __str, __len);
+      return __wrote == __len ? 0 : -1;
+    }
+  else
+    return 0;
+}
+
+ARGP_FS_EI int
+__argp_fmtstream_putc (argp_fmtstream_t __fs, int __ch)
+{
+  if (__fs->p < __fs->end || __argp_fmtstream_ensure (__fs, 1))
+    return *__fs->p++ = __ch;
+  else
+    return EOF;
+}
+
+/* Set __FS's left margin to __LMARGIN and return the old value.  */
+ARGP_FS_EI size_t
+__argp_fmtstream_set_lmargin (argp_fmtstream_t __fs, size_t __lmargin)
+{
+  size_t __old;
+  if ((size_t) (__fs->p - __fs->buf) > __fs->point_offs)
+    __argp_fmtstream_update (__fs);
+  __old = __fs->lmargin;
+  __fs->lmargin = __lmargin;
+  return __old;
+}
+
+/* Set __FS's right margin to __RMARGIN and return the old value.  */
+ARGP_FS_EI size_t
+__argp_fmtstream_set_rmargin (argp_fmtstream_t __fs, size_t __rmargin)
+{
+  size_t __old;
+  if ((size_t) (__fs->p - __fs->buf) > __fs->point_offs)
+    __argp_fmtstream_update (__fs);
+  __old = __fs->rmargin;
+  __fs->rmargin = __rmargin;
+  return __old;
+}
+
+/* Set FS's wrap margin to __WMARGIN and return the old value.  */
+ARGP_FS_EI size_t
+__argp_fmtstream_set_wmargin (argp_fmtstream_t __fs, size_t __wmargin)
+{
+  size_t __old;
+  if ((size_t) (__fs->p - __fs->buf) > __fs->point_offs)
+    __argp_fmtstream_update (__fs);
+  __old = __fs->wmargin;
+  __fs->wmargin = __wmargin;
+  return __old;
+}
+
+/* Return the column number of the current output point in __FS.  */
+ARGP_FS_EI size_t
+__argp_fmtstream_point (argp_fmtstream_t __fs)
+{
+  if ((size_t) (__fs->p - __fs->buf) > __fs->point_offs)
+    __argp_fmtstream_update (__fs);
+  return __fs->point_col >= 0 ? __fs->point_col : 0;
+}
+
+#if !_LIBC
+#undef __argp_fmtstream_putc
+#undef __argp_fmtstream_puts
+#undef __argp_fmtstream_write
+#undef __argp_fmtstream_set_lmargin
+#undef __argp_fmtstream_set_rmargin
+#undef __argp_fmtstream_set_wmargin
+#undef __argp_fmtstream_point
+#undef __argp_fmtstream_update
+#undef __argp_fmtstream_ensure
+#endif
+
+#endif /* __OPTIMIZE__ */
+
+#endif /* ARGP_FMTSTREAM_USE_LINEWRAP */
+
+#endif /* __ARGP_FMTSTREAM_H__ */
diff --git a/support/argp-fs-xinl.c b/support/argp-fs-xinl.c
new file mode 100644
index 0000000..94d5f58
--- /dev/null
+++ b/support/argp-fs-xinl.c
@@ -0,0 +1,41 @@
+/* Real definitions for extern inline functions in argp-fmtstream.h
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Written by Miles Bader <miles@gnu.ai.mit.edu>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#define ARGP_FS_EI
+#undef __OPTIMIZE__
+#define __OPTIMIZE__
+#include "argp-fmtstream.h"
+
+/* Add weak aliases.  */
+#if _LIBC - 0 && !defined (ARGP_FMTSTREAM_USE_LINEWRAP) && defined (weak_alias)
+
+weak_alias (__argp_fmtstream_putc, argp_fmtstream_putc)
+weak_alias (__argp_fmtstream_puts, argp_fmtstream_puts)
+weak_alias (__argp_fmtstream_write, argp_fmtstream_write)
+weak_alias (__argp_fmtstream_set_lmargin, argp_fmtstream_set_lmargin)
+weak_alias (__argp_fmtstream_set_rmargin, argp_fmtstream_set_rmargin)
+weak_alias (__argp_fmtstream_set_wmargin, argp_fmtstream_set_wmargin)
+weak_alias (__argp_fmtstream_point, argp_fmtstream_point)
+
+#endif
diff --git a/support/argp-help.c b/support/argp-help.c
new file mode 100644
index 0000000..2120ab1
--- /dev/null
+++ b/support/argp-help.c
@@ -0,0 +1,1699 @@
+/* Hierarchial argument parsing help output
+   Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Written by Miles Bader <miles@gnu.ai.mit.edu>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <stdarg.h>
+#include <malloc.h>
+#include <ctype.h>
+
+#ifndef _
+/* This is for other GNU distributions with internationalized messages.
+   When compiling libc, the _ macro is predefined.  */
+#ifdef HAVE_LIBINTL_H
+# include <libintl.h>
+# define _(msgid)       gettext (msgid)
+#else
+# define _(msgid)       (msgid)
+# define gettext(msgid) (msgid)
+#endif
+#endif
+
+#include "argp.h"
+#include "argp-fmtstream.h"
+#include "argp-namefrob.h"
+
+/* User-selectable (using an environment variable) formatting parameters.
+
+   These may be specified in an environment variable called `ARGP_HELP_FMT',
+   with a contents like:  VAR1=VAL1,VAR2=VAL2,BOOLVAR2,no-BOOLVAR2
+   Where VALn must be a positive integer.  The list of variables is in the
+   UPARAM_NAMES vector, below.  */
+
+/* Default parameters.  */
+#define DUP_ARGS      0		/* True if option argument can be duplicated. */
+#define DUP_ARGS_NOTE 1		/* True to print a note about duplicate args. */
+#define SHORT_OPT_COL 2		/* column in which short options start */
+#define LONG_OPT_COL  6		/* column in which long options start */
+#define DOC_OPT_COL   2		/* column in which doc options start */
+#define OPT_DOC_COL  29		/* column in which option text starts */
+#define HEADER_COL    1		/* column in which group headers are printed */
+#define USAGE_INDENT 12		/* indentation of wrapped usage lines */
+#define RMARGIN      79		/* right margin used for wrapping */
+
+/* User-selectable (using an environment variable) formatting parameters.
+   They must all be of type `int' for the parsing code to work.  */
+struct uparams
+{
+  /* If true, arguments for an option are shown with both short and long
+     options, even when a given option has both, e.g. `-x ARG, --longx=ARG'.
+     If false, then if an option has both, the argument is only shown with
+     the long one, e.g., `-x, --longx=ARG', and a message indicating that
+     this really means both is printed below the options.  */
+  int dup_args;
+
+  /* This is true if when DUP_ARGS is false, and some duplicate arguments have
+     been suppressed, an explanatory message should be printed.  */
+  int dup_args_note;
+
+  /* Various output columns.  */
+  int short_opt_col;
+  int long_opt_col;
+  int doc_opt_col;
+  int opt_doc_col;
+  int header_col;
+  int usage_indent;
+  int rmargin;
+
+  int valid;			/* True when the values in here are valid.  */
+};
+
+/* This is a global variable, as user options are only ever read once.  */
+static struct uparams uparams = {
+  DUP_ARGS, DUP_ARGS_NOTE,
+  SHORT_OPT_COL, LONG_OPT_COL, DOC_OPT_COL, OPT_DOC_COL, HEADER_COL,
+  USAGE_INDENT, RMARGIN,
+  0
+};
+
+/* A particular uparam, and what the user name is.  */
+struct uparam_name
+{
+  const char *name;		/* User name.  */
+  int is_bool;			/* Whether it's `boolean'.  */
+  size_t uparams_offs;		/* Location of the (int) field in UPARAMS.  */
+};
+
+/* The name-field mappings we know about.  */
+static const struct uparam_name uparam_names[] =
+{
+  { "dup-args",       1, offsetof (struct uparams, dup_args) },
+  { "dup-args-note",  1, offsetof (struct uparams, dup_args_note) },
+  { "short-opt-col",  0, offsetof (struct uparams, short_opt_col) },
+  { "long-opt-col",   0, offsetof (struct uparams, long_opt_col) },
+  { "doc-opt-col",    0, offsetof (struct uparams, doc_opt_col) },
+  { "opt-doc-col",    0, offsetof (struct uparams, opt_doc_col) },
+  { "header-col",     0, offsetof (struct uparams, header_col) },
+  { "usage-indent",   0, offsetof (struct uparams, usage_indent) },
+  { "rmargin",        0, offsetof (struct uparams, rmargin) },
+  { 0 }
+};
+
+/* Read user options from the environment, and fill in UPARAMS appropiately.  */
+static void
+fill_in_uparams (const struct argp_state *state)
+{
+  const char *var = getenv ("ARGP_HELP_FMT");
+
+#define SKIPWS(p) do { while (isspace (*p)) p++; } while (0);
+
+  if (var)
+    /* Parse var. */
+    while (*var)
+      {
+	SKIPWS (var);
+
+	if (isalpha (*var))
+	  {
+	    size_t var_len;
+	    const struct uparam_name *un;
+	    int unspec = 0, val = 0;
+	    const char *arg = var;
+
+	    while (isalnum (*arg) || *arg == '-' || *arg == '_')
+	      arg++;
+	    var_len = arg - var;
+
+	    SKIPWS (arg);
+
+	    if (*arg == '\0' || *arg == ',')
+	      unspec = 1;
+	    else if (*arg == '=')
+	      {
+		arg++;
+		SKIPWS (arg);
+	      }
+
+	    if (unspec)
+	      if (var[0] == 'n' && var[1] == 'o' && var[2] == '-')
+		{
+		  val = 0;
+		  var += 3;
+		  var_len -= 3;
+		}
+	      else
+		val = 1;
+	    else if (isdigit (*arg))
+	      {
+		val = atoi (arg);
+		while (isdigit (*arg))
+		  arg++;
+		SKIPWS (arg);
+	      }
+
+	    for (un = uparam_names; un->name; un++)
+	      if (strlen (un->name) == var_len
+		  && strncmp (var, un->name, var_len) == 0)
+		{
+		  if (unspec && !un->is_bool)
+		    __argp_failure (state, 0, 0,
+			   _("%.*s: ARGP_HELP_FMT parameter requires a value"),
+				    (int)var_len, var);
+		  else
+		    *(int *)((char *)&uparams + un->uparams_offs) = val;
+		  break;
+		}
+	    if (! un->name)
+	      __argp_failure (state, 0, 0,
+			      _("%.*s: Unknown ARGP_HELP_FMT parameter"),
+			      (int)var_len, var);
+
+	    var = arg;
+	    if (*var == ',')
+	      var++;
+	  }
+	else if (*var)
+	  {
+	    __argp_failure (state, 0, 0,
+			    _("Garbage in ARGP_HELP_FMT: %s"), var);
+	    break;
+	  }
+      }
+}
+
+/* Returns true if OPT hasn't been marked invisible.  Visibility only affects
+   whether OPT is displayed or used in sorting, not option shadowing.  */
+#define ovisible(opt) (! ((opt)->flags & OPTION_HIDDEN))
+
+/* Returns true if OPT is an alias for an earlier option.  */
+#define oalias(opt) ((opt)->flags & OPTION_ALIAS)
+
+/* Returns true if OPT is an documentation-only entry.  */
+#define odoc(opt) ((opt)->flags & OPTION_DOC)
+
+/* Returns true if OPT is the end-of-list marker for a list of options.  */
+#define oend(opt) __option_is_end (opt)
+
+/* Returns true if OPT has a short option.  */
+#define oshort(opt) __option_is_short (opt)
+
+/*
+   The help format for a particular option is like:
+
+     -xARG, -yARG, --long1=ARG, --long2=ARG        Documentation...
+
+   Where ARG will be omitted if there's no argument, for this option, or
+   will be surrounded by "[" and "]" appropiately if the argument is
+   optional.  The documentation string is word-wrapped appropiately, and if
+   the list of options is long enough, it will be started on a separate line.
+   If there are no short options for a given option, the first long option is
+   indented slighly in a way that's supposed to make most long options appear
+   to be in a separate column.
+
+   For example, the following output (from ps):
+
+     -p PID, --pid=PID          List the process PID
+	 --pgrp=PGRP            List processes in the process group PGRP
+     -P, -x, --no-parent        Include processes without parents
+     -Q, --all-fields           Don't elide unusable fields (normally if there's
+				some reason ps can't print a field for any
+				process, it's removed from the output entirely)
+     -r, --reverse, --gratuitously-long-reverse-option
+				Reverse the order of any sort
+	 --session[=SID]        Add the processes from the session SID (which
+				defaults to the sid of the current process)
+
+    Here are some more options:
+     -f ZOT, --foonly=ZOT       Glork a foonly
+     -z, --zaza                 Snit a zar
+
+     -?, --help                 Give this help list
+	 --usage                Give a short usage message
+     -V, --version              Print program version
+
+   The struct argp_option array for the above could look like:
+
+   {
+     {"pid",       'p',      "PID",  0, "List the process PID"},
+     {"pgrp",      OPT_PGRP, "PGRP", 0, "List processes in the process group PGRP"},
+     {"no-parent", 'P',	      0,     0, "Include processes without parents"},
+     {0,           'x',       0,     OPTION_ALIAS},
+     {"all-fields",'Q',       0,     0, "Don't elide unusable fields (normally"
+                                        " if there's some reason ps can't"
+					" print a field for any process, it's"
+                                        " removed from the output entirely)" },
+     {"reverse",   'r',       0,     0, "Reverse the order of any sort"},
+     {"gratuitously-long-reverse-option", 0, 0, OPTION_ALIAS},
+     {"session",   OPT_SESS,  "SID", OPTION_ARG_OPTIONAL,
+                                        "Add the processes from the session"
+					" SID (which defaults to the sid of"
+					" the current process)" },
+
+     {0,0,0,0, "Here are some more options:"},
+     {"foonly", 'f', "ZOT", 0, "Glork a foonly"},
+     {"zaza", 'z', 0, 0, "Snit a zar"},
+
+     {0}
+   }
+
+   Note that the last three options are automatically supplied by argp_parse,
+   unless you tell it not to with ARGP_NO_HELP.
+
+*/
+
+/* Returns true if CH occurs between BEG and END.  */
+static int
+find_char (char ch, char *beg, char *end)
+{
+  while (beg < end)
+    if (*beg == ch)
+      return 1;
+    else
+      beg++;
+  return 0;
+}
+
+struct hol_cluster;		/* fwd decl */
+
+struct hol_entry
+{
+  /* First option.  */
+  const struct argp_option *opt;
+  /* Number of options (including aliases).  */
+  unsigned num;
+
+  /* A pointers into the HOL's short_options field, to the first short option
+     letter for this entry.  The order of the characters following this point
+     corresponds to the order of options pointed to by OPT, and there are at
+     most NUM.  A short option recorded in a option following OPT is only
+     valid if it occurs in the right place in SHORT_OPTIONS (otherwise it's
+     probably been shadowed by some other entry).  */
+  char *short_options;
+
+  /* Entries are sorted by their group first, in the order:
+       1, 2, ..., n, 0, -m, ..., -2, -1
+     and then alphabetically within each group.  The default is 0.  */
+  int group;
+
+  /* The cluster of options this entry belongs to, or 0 if none.  */
+  struct hol_cluster *cluster;
+
+  /* The argp from which this option came.  */
+  const struct argp *argp;
+};
+
+/* A cluster of entries to reflect the argp tree structure.  */
+struct hol_cluster
+{
+  /* A descriptive header printed before options in this cluster.  */
+  const char *header;
+
+  /* Used to order clusters within the same group with the same parent,
+     according to the order in which they occured in the parent argp's child
+     list.  */
+  int index;
+
+  /* How to sort this cluster with respect to options and other clusters at the
+     same depth (clusters always follow options in the same group).  */
+  int group;
+
+  /* The cluster to which this cluster belongs, or 0 if it's at the base
+     level.  */
+  struct hol_cluster *parent;
+
+  /* The argp from which this cluster is (eventually) derived.  */
+  const struct argp *argp;
+
+  /* The distance this cluster is from the root.  */
+  int depth;
+
+  /* Clusters in a given hol are kept in a linked list, to make freeing them
+     possible.  */
+  struct hol_cluster *next;
+};
+
+/* A list of options for help.  */
+struct hol
+{
+  /* An array of hol_entry's.  */
+  struct hol_entry *entries;
+  /* The number of entries in this hol.  If this field is zero, the others
+     are undefined.  */
+  unsigned num_entries;
+
+  /* A string containing all short options in this HOL.  Each entry contains
+     pointers into this string, so the order can't be messed with blindly.  */
+  char *short_options;
+
+  /* Clusters of entries in this hol.  */
+  struct hol_cluster *clusters;
+};
+
+/* Create a struct hol from the options in ARGP.  CLUSTER is the
+   hol_cluster in which these entries occur, or 0, if at the root.  */
+static struct hol *
+make_hol (const struct argp *argp, struct hol_cluster *cluster)
+{
+  char *so;
+  const struct argp_option *o;
+  const struct argp_option *opts = argp->options;
+  struct hol_entry *entry;
+  unsigned num_short_options = 0;
+  struct hol *hol = malloc (sizeof (struct hol));
+
+  assert (hol);
+
+  hol->num_entries = 0;
+  hol->clusters = 0;
+
+  if (opts)
+    {
+      int cur_group = 0;
+
+      /* The first option must not be an alias.  */
+      assert (! oalias (opts));
+
+      /* Calculate the space needed.  */
+      for (o = opts; ! oend (o); o++)
+	{
+	  if (! oalias (o))
+	    hol->num_entries++;
+	  if (oshort (o))
+	    num_short_options++;	/* This is an upper bound.  */
+	}
+
+      hol->entries = malloc (sizeof (struct hol_entry) * hol->num_entries);
+      hol->short_options = malloc (num_short_options + 1);
+
+      assert (hol->entries && hol->short_options);
+
+      /* Fill in the entries.  */
+      so = hol->short_options;
+      for (o = opts, entry = hol->entries; ! oend (o); entry++)
+	{
+	  entry->opt = o;
+	  entry->num = 0;
+	  entry->short_options = so;
+	  entry->group = cur_group =
+	    o->group
+	    ? o->group
+	    : ((!o->name && !o->key)
+	       ? cur_group + 1
+	       : cur_group);
+	  entry->cluster = cluster;
+	  entry->argp = argp;
+
+	  do
+	    {
+	      entry->num++;
+	      if (oshort (o) && ! find_char (o->key, hol->short_options, so))
+		/* O has a valid short option which hasn't already been used.*/
+		*so++ = o->key;
+	      o++;
+	    }
+	  while (! oend (o) && oalias (o));
+	}
+      *so = '\0';		/* null terminated so we can find the length */
+    }
+
+  return hol;
+}
+
+/* Add a new cluster to HOL, with the given GROUP and HEADER (taken from the
+   associated argp child list entry), INDEX, and PARENT, and return a pointer
+   to it.  ARGP is the argp that this cluster results from.  */
+static struct hol_cluster *
+hol_add_cluster (struct hol *hol, int group, const char *header, int index,
+		 struct hol_cluster *parent, const struct argp *argp)
+{
+  struct hol_cluster *cl = malloc (sizeof (struct hol_cluster));
+  if (cl)
+    {
+      cl->group = group;
+      cl->header = header;
+
+      cl->index = index;
+      cl->parent = parent;
+      cl->argp = argp;
+      cl->depth = parent ? parent->depth + 1 : 0;
+
+      cl->next = hol->clusters;
+      hol->clusters = cl;
+    }
+  return cl;
+}
+
+/* Free HOL and any resources it uses.  */
+static void
+hol_free (struct hol *hol)
+{
+  struct hol_cluster *cl = hol->clusters;
+
+  while (cl)
+    {
+      struct hol_cluster *next = cl->next;
+      free (cl);
+      cl = next;
+    }
+
+  if (hol->num_entries > 0)
+    {
+      free (hol->entries);
+      free (hol->short_options);
+    }
+
+  free (hol);
+}
+
+static inline int
+hol_entry_short_iterate (const struct hol_entry *entry,
+			 int (*func)(const struct argp_option *opt,
+				     const struct argp_option *real,
+				     void *cookie),
+			 void *cookie)
+{
+  unsigned nopts;
+  int val = 0;
+  const struct argp_option *opt, *real = entry->opt;
+  char *so = entry->short_options;
+
+  for (opt = real, nopts = entry->num; nopts > 0 && !val; opt++, nopts--)
+    if (oshort (opt) && *so == opt->key)
+      {
+	if (!oalias (opt))
+	  real = opt;
+	if (ovisible (opt))
+	  val = (*func)(opt, real, cookie);
+	so++;
+      }
+
+  return val;
+}
+
+static inline int
+hol_entry_long_iterate (const struct hol_entry *entry,
+			int (*func)(const struct argp_option *opt,
+				    const struct argp_option *real,
+				    void *cookie),
+			void *cookie)
+{
+  unsigned nopts;
+  int val = 0;
+  const struct argp_option *opt, *real = entry->opt;
+
+  for (opt = real, nopts = entry->num; nopts > 0 && !val; opt++, nopts--)
+    if (opt->name)
+      {
+	if (!oalias (opt))
+	  real = opt;
+	if (ovisible (opt))
+	  val = (*func)(opt, real, cookie);
+      }
+
+  return val;
+}
+
+/* Iterator that returns true for the first short option.  */
+static inline int
+until_short (const struct argp_option *opt, const struct argp_option *real,
+	     void *cookie)
+{
+  return oshort (opt) ? opt->key : 0;
+}
+
+/* Returns the first valid short option in ENTRY, or 0 if there is none.  */
+static char
+hol_entry_first_short (const struct hol_entry *entry)
+{
+  return hol_entry_short_iterate (entry, until_short, 0);
+}
+
+/* Returns the first valid long option in ENTRY, or 0 if there is none.  */
+static const char *
+hol_entry_first_long (const struct hol_entry *entry)
+{
+  const struct argp_option *opt;
+  unsigned num;
+  for (opt = entry->opt, num = entry->num; num > 0; opt++, num--)
+    if (opt->name && ovisible (opt))
+      return opt->name;
+  return 0;
+}
+
+/* Returns the entry in HOL with the long option name NAME, or 0 if there is
+   none.  */
+static struct hol_entry *
+hol_find_entry (struct hol *hol, const char *name)
+{
+  struct hol_entry *entry = hol->entries;
+  unsigned num_entries = hol->num_entries;
+
+  while (num_entries-- > 0)
+    {
+      const struct argp_option *opt = entry->opt;
+      unsigned num_opts = entry->num;
+
+      while (num_opts-- > 0)
+	if (opt->name && ovisible (opt) && strcmp (opt->name, name) == 0)
+	  return entry;
+	else
+	  opt++;
+
+      entry++;
+    }
+
+  return 0;
+}
+
+/* If an entry with the long option NAME occurs in HOL, set it's special
+   sort position to GROUP.  */
+static void
+hol_set_group (struct hol *hol, const char *name, int group)
+{
+  struct hol_entry *entry = hol_find_entry (hol, name);
+  if (entry)
+    entry->group = group;
+}
+
+/* Order by group:  0, 1, 2, ..., n, -m, ..., -2, -1.
+   EQ is what to return if GROUP1 and GROUP2 are the same.  */
+static int
+group_cmp (int group1, int group2, int eq)
+{
+  if (group1 == group2)
+    return eq;
+  else if ((group1 < 0 && group2 < 0) || (group1 >= 0 && group2 >= 0))
+    return group1 - group2;
+  else
+    return group2 - group1;
+}
+
+/* Compare clusters CL1 & CL2 by the order that they should appear in
+   output.  */
+static int
+hol_cluster_cmp (const struct hol_cluster *cl1, const struct hol_cluster *cl2)
+{
+  /* If one cluster is deeper than the other, use its ancestor at the same
+     level, so that finding the common ancestor is straightforward.  */
+  while (cl1->depth < cl2->depth)
+    cl1 = cl1->parent;
+  while (cl2->depth < cl1->depth)
+    cl2 = cl2->parent;
+
+  /* Now reduce both clusters to their ancestors at the point where both have
+     a common parent; these can be directly compared.  */
+  while (cl1->parent != cl2->parent)
+    cl1 = cl1->parent, cl2 = cl2->parent;
+
+  return group_cmp (cl1->group, cl2->group, cl2->index - cl1->index);
+}
+
+/* Return the ancestor of CL that's just below the root (i.e., has a parent
+   of 0).  */
+static struct hol_cluster *
+hol_cluster_base (struct hol_cluster *cl)
+{
+  while (cl->parent)
+    cl = cl->parent;
+  return cl;
+}
+
+/* Return true if CL1 is a child of CL2.  */
+static int
+hol_cluster_is_child (const struct hol_cluster *cl1,
+		      const struct hol_cluster *cl2)
+{
+  while (cl1 && cl1 != cl2)
+    cl1 = cl1->parent;
+  return cl1 == cl2;
+}
+
+/* Given the name of a OPTION_DOC option, modifies NAME to start at the tail
+   that should be used for comparisons, and returns true iff it should be
+   treated as a non-option.  */
+static int
+canon_doc_option (const char **name)
+{
+  int non_opt;
+  /* Skip initial whitespace.  */
+  while (isspace (**name))
+    (*name)++;
+  /* Decide whether this looks like an option (leading `-') or not.  */
+  non_opt = (**name != '-');
+  /* Skip until part of name used for sorting.  */
+  while (**name && !isalnum (**name))
+    (*name)++;
+  return non_opt;
+}
+
+/* Order ENTRY1 & ENTRY2 by the order which they should appear in a help
+   listing.  */
+static int
+hol_entry_cmp (const struct hol_entry *entry1, const struct hol_entry *entry2)
+{
+  /* The group numbers by which the entries should be ordered; if either is
+     in a cluster, then this is just the group within the cluster.  */
+  int group1 = entry1->group, group2 = entry2->group;
+
+  if (entry1->cluster != entry2->cluster)
+    /* The entries are not within the same cluster, so we can't compare them
+       directly, we have to use the appropiate clustering level too.  */
+    if (! entry1->cluster)
+      /* ENTRY1 is at the `base level', not in a cluster, so we have to
+	 compare it's group number with that of the base cluster in which
+	 ENTRY2 resides.  Note that if they're in the same group, the
+	 clustered option always comes laster.  */
+      return group_cmp (group1, hol_cluster_base (entry2->cluster)->group, -1);
+    else if (! entry2->cluster)
+      /* Likewise, but ENTRY2's not in a cluster.  */
+      return group_cmp (hol_cluster_base (entry1->cluster)->group, group2, 1);
+    else
+      /* Both entries are in clusters, we can just compare the clusters.  */
+      return hol_cluster_cmp (entry1->cluster, entry2->cluster);
+  else if (group1 == group2)
+    /* The entries are both in the same cluster and group, so compare them
+       alphabetically.  */
+    {
+      int short1 = hol_entry_first_short (entry1);
+      int short2 = hol_entry_first_short (entry2);
+      int doc1 = odoc (entry1->opt);
+      int doc2 = odoc (entry2->opt);
+      const char *long1 = hol_entry_first_long (entry1);
+      const char *long2 = hol_entry_first_long (entry2);
+
+      if (doc1)
+	doc1 = canon_doc_option (&long1);
+      if (doc2)
+	doc2 = canon_doc_option (&long2);
+
+      if (doc1 != doc2)
+	/* `documentation' options always follow normal options (or
+	   documentation options that *look* like normal options).  */
+	return doc1 - doc2;
+      else if (!short1 && !short2 && long1 && long2)
+	/* Only long options.  */
+	return __strcasecmp (long1, long2);
+      else
+	/* Compare short/short, long/short, short/long, using the first
+	   character of long options.  Entries without *any* valid
+	   options (such as options with OPTION_HIDDEN set) will be put
+	   first, but as they're not displayed, it doesn't matter where
+	   they are.  */
+	{
+	  char first1 = short1 ? short1 : long1 ? *long1 : 0;
+	  char first2 = short2 ? short2 : long2 ? *long2 : 0;
+	  int lower_cmp = tolower (first1) - tolower (first2);
+	  /* Compare ignoring case, except when the options are both the
+	     same letter, in which case lower-case always comes first.  */
+	  return lower_cmp ? lower_cmp : first2 - first1;
+	}
+    }
+  else
+    /* Within the same cluster, but not the same group, so just compare
+       groups.  */
+    return group_cmp (group1, group2, 0);
+}
+
+/* Version of hol_entry_cmp with correct signature for qsort.  */
+static int
+hol_entry_qcmp (const void *entry1_v, const void *entry2_v)
+{
+  return hol_entry_cmp (entry1_v, entry2_v);
+}
+
+/* Sort HOL by group and alphabetically by option name (with short options
+   taking precedence over long).  Since the sorting is for display purposes
+   only, the shadowing of options isn't effected.  */
+static void
+hol_sort (struct hol *hol)
+{
+  if (hol->num_entries > 0)
+    qsort (hol->entries, hol->num_entries, sizeof (struct hol_entry),
+	   hol_entry_qcmp);
+}
+
+/* Append MORE to HOL, destroying MORE in the process.  Options in HOL shadow
+   any in MORE with the same name.  */
+static void
+hol_append (struct hol *hol, struct hol *more)
+{
+  struct hol_cluster **cl_end = &hol->clusters;
+
+  /* Steal MORE's cluster list, and add it to the end of HOL's.  */
+  while (*cl_end)
+    cl_end = &(*cl_end)->next;
+  *cl_end = more->clusters;
+  more->clusters = 0;
+
+  /* Merge entries.  */
+  if (more->num_entries > 0)
+    if (hol->num_entries == 0)
+      {
+	hol->num_entries = more->num_entries;
+	hol->entries = more->entries;
+	hol->short_options = more->short_options;
+	more->num_entries = 0;	/* Mark MORE's fields as invalid.  */
+      }
+    else
+      /* append the entries in MORE to those in HOL, taking care to only add
+	 non-shadowed SHORT_OPTIONS values.  */
+      {
+	unsigned left;
+	char *so, *more_so;
+	struct hol_entry *e;
+	unsigned num_entries = hol->num_entries + more->num_entries;
+	struct hol_entry *entries =
+	  malloc (num_entries * sizeof (struct hol_entry));
+	unsigned hol_so_len = strlen (hol->short_options);
+	char *short_options =
+	  malloc (hol_so_len + strlen (more->short_options) + 1);
+
+	memcpy (entries, hol->entries,
+		hol->num_entries * sizeof (struct hol_entry));
+	memcpy (entries + hol->num_entries, more->entries,
+		more->num_entries * sizeof (struct hol_entry));
+
+	memcpy (short_options, hol->short_options, hol_so_len);
+
+	/* Fix up the short options pointers from HOL.  */
+	for (e = entries, left = hol->num_entries; left > 0; e++, left--)
+	  e->short_options += (short_options - hol->short_options);
+
+	/* Now add the short options from MORE, fixing up its entries too.  */
+	so = short_options + hol_so_len;
+	more_so = more->short_options;
+	for (left = more->num_entries; left > 0; e++, left--)
+	  {
+	    int opts_left;
+	    const struct argp_option *opt;
+
+	    e->short_options = so;
+
+	    for (opts_left = e->num, opt = e->opt; opts_left; opt++, opts_left--)
+	      {
+		int ch = *more_so;
+		if (oshort (opt) && ch == opt->key)
+		  /* The next short option in MORE_SO, CH, is from OPT.  */
+		  {
+		    if (! find_char (ch, short_options,
+				     short_options + hol_so_len))
+		      /* The short option CH isn't shadowed by HOL's options,
+			 so add it to the sum.  */
+		      *so++ = ch;
+		    more_so++;
+		  }
+	      }
+	  }
+
+	*so = '\0';
+
+	free (hol->entries);
+	free (hol->short_options);
+
+	hol->entries = entries;
+	hol->num_entries = num_entries;
+	hol->short_options = short_options;
+      }
+
+  hol_free (more);
+}
+
+/* Inserts enough spaces to make sure STREAM is at column COL.  */
+static void
+indent_to (argp_fmtstream_t stream, unsigned col)
+{
+  int needed = col - __argp_fmtstream_point (stream);
+  while (needed-- > 0)
+    __argp_fmtstream_putc (stream, ' ');
+}
+
+/* Output to STREAM either a space, or a newline if there isn't room for at
+   least ENSURE characters before the right margin.  */
+static void
+space (argp_fmtstream_t stream, size_t ensure)
+{
+  if (__argp_fmtstream_point (stream) + ensure
+      >= __argp_fmtstream_rmargin (stream))
+    __argp_fmtstream_putc (stream, '\n');
+  else
+    __argp_fmtstream_putc (stream, ' ');
+}
+
+/* If the option REAL has an argument, we print it in using the printf
+   format REQ_FMT or OPT_FMT depending on whether it's a required or
+   optional argument.  */
+static void
+arg (const struct argp_option *real, const char *req_fmt, const char *opt_fmt,
+     argp_fmtstream_t stream)
+{
+  if (real->arg)
+    if (real->flags & OPTION_ARG_OPTIONAL)
+      __argp_fmtstream_printf (stream, opt_fmt, gettext (real->arg));
+    else
+      __argp_fmtstream_printf (stream, req_fmt, gettext (real->arg));
+}
+
+/* Helper functions for hol_entry_help.  */
+
+/* State used during the execution of hol_help.  */
+struct hol_help_state
+{
+  /* PREV_ENTRY should contain the previous entry printed, or 0.  */
+  struct hol_entry *prev_entry;
+
+  /* If an entry is in a different group from the previous one, and SEP_GROUPS
+     is true, then a blank line will be printed before any output. */
+  int sep_groups;
+
+  /* True if a duplicate option argument was suppressed (only ever set if
+     UPARAMS.dup_args is false).  */
+  int suppressed_dup_arg;
+};
+
+/* Some state used while printing a help entry (used to communicate with
+   helper functions).  See the doc for hol_entry_help for more info, as most
+   of the fields are copied from its arguments.  */
+struct pentry_state
+{
+  const struct hol_entry *entry;
+  argp_fmtstream_t stream;
+  struct hol_help_state *hhstate;
+
+  /* True if nothing's been printed so far.  */
+  int first;
+
+  /* If non-zero, the state that was used to print this help.  */
+  const struct argp_state *state;
+};
+
+/* If a user doc filter should be applied to DOC, do so.  */
+static const char *
+filter_doc (const char *doc, int key, const struct argp *argp,
+	    const struct argp_state *state)
+{
+  if (argp->help_filter)
+    /* We must apply a user filter to this output.  */
+    {
+      void *input = __argp_input (argp, state);
+      return (*argp->help_filter) (key, doc, input);
+    }
+  else
+    /* No filter.  */
+    return (char *)doc;
+}
+
+/* Prints STR as a header line, with the margin lines set appropiately, and
+   notes the fact that groups should be separated with a blank line.  ARGP is
+   the argp that should dictate any user doc filtering to take place.  Note
+   that the previous wrap margin isn't restored, but the left margin is reset
+   to 0.  */
+static void
+print_header (const char *str, const struct argp *argp,
+	      struct pentry_state *pest)
+{
+  const char *tstr = gettext (str);
+  const char *fstr = filter_doc (tstr, ARGP_KEY_HELP_HEADER, argp, pest->state);
+
+  if (fstr)
+    {
+      if (*fstr)
+	{
+	  if (pest->hhstate->prev_entry)
+	    /* Precede with a blank line.  */
+	    __argp_fmtstream_putc (pest->stream, '\n');
+	  indent_to (pest->stream, uparams.header_col);
+	  __argp_fmtstream_set_lmargin (pest->stream, uparams.header_col);
+	  __argp_fmtstream_set_wmargin (pest->stream, uparams.header_col);
+	  __argp_fmtstream_puts (pest->stream, fstr);
+	  __argp_fmtstream_set_lmargin (pest->stream, 0);
+	  __argp_fmtstream_putc (pest->stream, '\n');
+	}
+
+      pest->hhstate->sep_groups = 1; /* Separate subsequent groups. */
+    }
+
+  if (fstr != tstr)
+    free ((char *) fstr);
+}
+
+/* Inserts a comma if this isn't the first item on the line, and then makes
+   sure we're at least to column COL.  If this *is* the first item on a line,
+   prints any pending whitespace/headers that should precede this line. Also
+   clears FIRST.  */
+static void
+comma (unsigned col, struct pentry_state *pest)
+{
+  if (pest->first)
+    {
+      const struct hol_entry *pe = pest->hhstate->prev_entry;
+      const struct hol_cluster *cl = pest->entry->cluster;
+
+      if (pest->hhstate->sep_groups && pe && pest->entry->group != pe->group)
+	__argp_fmtstream_putc (pest->stream, '\n');
+
+      if (cl && cl->header && *cl->header
+	  && (!pe
+	      || (pe->cluster != cl
+		  && !hol_cluster_is_child (pe->cluster, cl))))
+	/* If we're changing clusters, then this must be the start of the
+	   ENTRY's cluster unless that is an ancestor of the previous one
+	   (in which case we had just popped into a sub-cluster for a bit).
+	   If so, then print the cluster's header line.  */
+	{
+	  int old_wm = __argp_fmtstream_wmargin (pest->stream);
+	  print_header (cl->header, cl->argp, pest);
+	  __argp_fmtstream_set_wmargin (pest->stream, old_wm);
+	}
+
+      pest->first = 0;
+    }
+  else
+    __argp_fmtstream_puts (pest->stream, ", ");
+
+  indent_to (pest->stream, col);
+}
+
+/* Print help for ENTRY to STREAM.  */
+static void
+hol_entry_help (struct hol_entry *entry, const struct argp_state *state,
+		argp_fmtstream_t stream, struct hol_help_state *hhstate)
+{
+  unsigned num;
+  const struct argp_option *real = entry->opt, *opt;
+  char *so = entry->short_options;
+  int have_long_opt = 0;	/* We have any long options.  */
+  /* Saved margins.  */
+  int old_lm = __argp_fmtstream_set_lmargin (stream, 0);
+  int old_wm = __argp_fmtstream_wmargin (stream);
+  /* PEST is a state block holding some of our variables that we'd like to
+     share with helper functions.  */
+  struct pentry_state pest = { entry, stream, hhstate, 1, state };
+
+  if (! odoc (real))
+    for (opt = real, num = entry->num; num > 0; opt++, num--)
+      if (opt->name && ovisible (opt))
+	{
+	  have_long_opt = 1;
+	  break;
+	}
+
+  /* First emit short options.  */
+  __argp_fmtstream_set_wmargin (stream, uparams.short_opt_col); /* For truly bizarre cases. */
+  for (opt = real, num = entry->num; num > 0; opt++, num--)
+    if (oshort (opt) && opt->key == *so)
+      /* OPT has a valid (non shadowed) short option.  */
+      {
+	if (ovisible (opt))
+	  {
+	    comma (uparams.short_opt_col, &pest);
+	    __argp_fmtstream_putc (stream, '-');
+	    __argp_fmtstream_putc (stream, *so);
+	    if (!have_long_opt || uparams.dup_args)
+	      arg (real, " %s", "[%s]", stream);
+	    else if (real->arg)
+	      hhstate->suppressed_dup_arg = 1;
+	  }
+	so++;
+      }
+
+  /* Now, long options.  */
+  if (odoc (real))
+    /* A `documentation' option.  */
+    {
+      __argp_fmtstream_set_wmargin (stream, uparams.doc_opt_col);
+      for (opt = real, num = entry->num; num > 0; opt++, num--)
+	if (opt->name && ovisible (opt))
+	  {
+	    comma (uparams.doc_opt_col, &pest);
+	    /* Calling gettext here isn't quite right, since sorting will
+	       have been done on the original; but documentation options
+	       should be pretty rare anyway...  */
+	    __argp_fmtstream_puts (stream, gettext (opt->name));
+	  }
+    }
+  else
+    /* A real long option.  */
+    {
+      int first_long_opt = 1;
+
+      __argp_fmtstream_set_wmargin (stream, uparams.long_opt_col);
+      for (opt = real, num = entry->num; num > 0; opt++, num--)
+	if (opt->name && ovisible (opt))
+	  {
+	    comma (uparams.long_opt_col, &pest);
+	    __argp_fmtstream_printf (stream, "--%s", opt->name);
+	    if (first_long_opt || uparams.dup_args)
+	      arg (real, "=%s", "[=%s]", stream);
+	    else if (real->arg)
+	      hhstate->suppressed_dup_arg = 1;
+	  }
+    }
+
+  /* Next, documentation strings.  */
+  __argp_fmtstream_set_lmargin (stream, 0);
+
+  if (pest.first)
+    /* Didn't print any switches, what's up?  */
+    if (!oshort (real) && !real->name)
+      /* This is a group header, print it nicely.  */
+      print_header (real->doc, entry->argp, &pest);
+    else
+      /* Just a totally shadowed option or null header; print nothing.  */
+      goto cleanup;		/* Just return, after cleaning up.  */
+  else
+    {
+      const char *tstr = real->doc ? gettext (real->doc) : 0;
+      const char *fstr = filter_doc (tstr, real->key, entry->argp, state);
+      if (fstr && *fstr)
+	{
+	  unsigned int col = __argp_fmtstream_point (stream);
+
+	  __argp_fmtstream_set_lmargin (stream, uparams.opt_doc_col);
+	  __argp_fmtstream_set_wmargin (stream, uparams.opt_doc_col);
+
+	  if (col > (unsigned int) (uparams.opt_doc_col + 3))
+	    __argp_fmtstream_putc (stream, '\n');
+	  else if (col >= (unsigned int) uparams.opt_doc_col)
+	    __argp_fmtstream_puts (stream, "   ");
+	  else
+	    indent_to (stream, uparams.opt_doc_col);
+
+	  __argp_fmtstream_puts (stream, fstr);
+	}
+      if (fstr && fstr != tstr)
+	free ((char *) fstr);
+
+      /* Reset the left margin.  */
+      __argp_fmtstream_set_lmargin (stream, 0);
+      __argp_fmtstream_putc (stream, '\n');
+    }
+
+  hhstate->prev_entry = entry;
+
+cleanup:
+  __argp_fmtstream_set_lmargin (stream, old_lm);
+  __argp_fmtstream_set_wmargin (stream, old_wm);
+}
+
+/* Output a long help message about the options in HOL to STREAM.  */
+static void
+hol_help (struct hol *hol, const struct argp_state *state,
+	  argp_fmtstream_t stream)
+{
+  unsigned num;
+  struct hol_entry *entry;
+  struct hol_help_state hhstate = { 0, 0, 0 };
+
+  for (entry = hol->entries, num = hol->num_entries; num > 0; entry++, num--)
+    hol_entry_help (entry, state, stream, &hhstate);
+
+  if (hhstate.suppressed_dup_arg && uparams.dup_args_note)
+    {
+      const char *tstr = _("\
+Mandatory or optional arguments to long options are also mandatory or \
+optional for any corresponding short options.");
+      const char *fstr = filter_doc (tstr, ARGP_KEY_HELP_DUP_ARGS_NOTE,
+				     state ? state->root_argp : 0, state);
+      if (fstr && *fstr)
+	{
+	  __argp_fmtstream_putc (stream, '\n');
+	  __argp_fmtstream_puts (stream, fstr);
+	  __argp_fmtstream_putc (stream, '\n');
+	}
+      if (fstr && fstr != tstr)
+	free ((char *) fstr);
+    }
+}
+
+/* Helper functions for hol_usage.  */
+
+/* If OPT is a short option without an arg, append its key to the string
+   pointer pointer to by COOKIE, and advance the pointer.  */
+static int
+add_argless_short_opt (const struct argp_option *opt,
+		       const struct argp_option *real,
+		       void *cookie)
+{
+  char **snao_end = cookie;
+  if (!(opt->arg || real->arg)
+      && !((opt->flags | real->flags) & OPTION_NO_USAGE))
+    *(*snao_end)++ = opt->key;
+  return 0;
+}
+
+/* If OPT is a short option with an arg, output a usage entry for it to the
+   stream pointed at by COOKIE.  */
+static int
+usage_argful_short_opt (const struct argp_option *opt,
+			const struct argp_option *real,
+			void *cookie)
+{
+  argp_fmtstream_t stream = cookie;
+  const char *arg = opt->arg;
+  int flags = opt->flags | real->flags;
+
+  if (! arg)
+    arg = real->arg;
+
+  if (arg && !(flags & OPTION_NO_USAGE))
+    {
+      arg = gettext (arg);
+
+      if (flags & OPTION_ARG_OPTIONAL)
+	__argp_fmtstream_printf (stream, " [-%c[%s]]", opt->key, arg);
+      else
+	{
+	  /* Manually do line wrapping so that it (probably) won't
+	     get wrapped at the embedded space.  */
+	  space (stream, 6 + strlen (arg));
+	  __argp_fmtstream_printf (stream, "[-%c %s]", opt->key, arg);
+	}
+    }
+
+  return 0;
+}
+
+/* Output a usage entry for the long option opt to the stream pointed at by
+   COOKIE.  */
+static int
+usage_long_opt (const struct argp_option *opt,
+		const struct argp_option *real,
+		void *cookie)
+{
+  argp_fmtstream_t stream = cookie;
+  const char *arg = opt->arg;
+  int flags = opt->flags | real->flags;
+
+  if (! arg)
+    arg = real->arg;
+
+  if (! (flags & OPTION_NO_USAGE))
+    if (arg)
+      {
+	arg = gettext (arg);
+	if (flags & OPTION_ARG_OPTIONAL)
+	  __argp_fmtstream_printf (stream, " [--%s[=%s]]", opt->name, arg);
+	else
+	  __argp_fmtstream_printf (stream, " [--%s=%s]", opt->name, arg);
+      }
+    else
+      __argp_fmtstream_printf (stream, " [--%s]", opt->name);
+
+  return 0;
+}
+
+/* Print a short usage description for the arguments in HOL to STREAM.  */
+static void
+hol_usage (struct hol *hol, argp_fmtstream_t stream)
+{
+  if (hol->num_entries > 0)
+    {
+      unsigned nentries;
+      struct hol_entry *entry;
+      char *short_no_arg_opts = alloca (strlen (hol->short_options) + 1);
+      char *snao_end = short_no_arg_opts;
+
+      /* First we put a list of short options without arguments.  */
+      for (entry = hol->entries, nentries = hol->num_entries
+	   ; nentries > 0
+	   ; entry++, nentries--)
+	hol_entry_short_iterate (entry, add_argless_short_opt, &snao_end);
+      if (snao_end > short_no_arg_opts)
+	{
+	  *snao_end++ = 0;
+	  __argp_fmtstream_printf (stream, " [-%s]", short_no_arg_opts);
+	}
+
+      /* Now a list of short options *with* arguments.  */
+      for (entry = hol->entries, nentries = hol->num_entries
+	   ; nentries > 0
+	   ; entry++, nentries--)
+	hol_entry_short_iterate (entry, usage_argful_short_opt, stream);
+
+      /* Finally, a list of long options (whew!).  */
+      for (entry = hol->entries, nentries = hol->num_entries
+	   ; nentries > 0
+	   ; entry++, nentries--)
+	hol_entry_long_iterate (entry, usage_long_opt, stream);
+    }
+}
+
+/* Make a HOL containing all levels of options in ARGP.  CLUSTER is the
+   cluster in which ARGP's entries should be clustered, or 0.  */
+static struct hol *
+argp_hol (const struct argp *argp, struct hol_cluster *cluster)
+{
+  const struct argp_child *child = argp->children;
+  struct hol *hol = make_hol (argp, cluster);
+  if (child)
+    while (child->argp)
+      {
+	struct hol_cluster *child_cluster =
+	  ((child->group || child->header)
+	   /* Put CHILD->argp within its own cluster.  */
+	   ? hol_add_cluster (hol, child->group, child->header,
+			      child - argp->children, cluster, argp)
+	   /* Just merge it into the parent's cluster.  */
+	   : cluster);
+	hol_append (hol, argp_hol (child->argp, child_cluster)) ;
+	child++;
+      }
+  return hol;
+}
+
+/* Calculate how many different levels with alternative args strings exist in
+   ARGP.  */
+static size_t
+argp_args_levels (const struct argp *argp)
+{
+  size_t levels = 0;
+  const struct argp_child *child = argp->children;
+
+  if (argp->args_doc && strchr (argp->args_doc, '\n'))
+    levels++;
+
+  if (child)
+    while (child->argp)
+      levels += argp_args_levels ((child++)->argp);
+
+  return levels;
+}
+
+/* Print all the non-option args documented in ARGP to STREAM.  Any output is
+   preceded by a space.  LEVELS is a pointer to a byte vector the length
+   returned by argp_args_levels; it should be initialized to zero, and
+   updated by this routine for the next call if ADVANCE is true.  True is
+   returned as long as there are more patterns to output.  */
+static int
+argp_args_usage (const struct argp *argp, const struct argp_state *state,
+		 char **levels, int advance, argp_fmtstream_t stream)
+{
+  char *our_level = *levels;
+  int multiple = 0;
+  const struct argp_child *child = argp->children;
+  const char *tdoc = gettext (argp->args_doc), *nl = 0;
+  const char *fdoc = filter_doc (tdoc, ARGP_KEY_HELP_ARGS_DOC, argp, state);
+
+  if (fdoc)
+    {
+      nl = strchr (fdoc, '\n');
+      if (nl)
+	/* This is a `multi-level' args doc; advance to the correct position
+	   as determined by our state in LEVELS, and update LEVELS.  */
+	{
+	  int i;
+	  multiple = 1;
+	  for (i = 0; i < *our_level; i++)
+	    fdoc = nl + 1, nl = strchr (fdoc, '\n');
+	  (*levels)++;
+	}
+      if (! nl)
+	nl = fdoc + strlen (fdoc);
+
+      /* Manually do line wrapping so that it (probably) won't get wrapped at
+	 any embedded spaces.  */
+      space (stream, 1 + nl - fdoc);
+
+      __argp_fmtstream_write (stream, fdoc, nl - fdoc);
+    }
+  if (fdoc && fdoc != tdoc)
+    free ((char *)fdoc);	/* Free user's modified doc string.  */
+
+  if (child)
+    while (child->argp)
+      advance = !argp_args_usage ((child++)->argp, state, levels, advance, stream);
+
+  if (advance && multiple)
+    /* Need to increment our level.  */
+    if (*nl)
+      /* There's more we can do here.  */
+      {
+	(*our_level)++;
+	advance = 0;		/* Our parent shouldn't advance also. */
+      }
+    else if (*our_level > 0)
+      /* We had multiple levels, but used them up; reset to zero.  */
+      *our_level = 0;
+
+  return !advance;
+}
+
+/* Print the documentation for ARGP to STREAM; if POST is false, then
+   everything preceeding a `\v' character in the documentation strings (or
+   the whole string, for those with none) is printed, otherwise, everything
+   following the `\v' character (nothing for strings without).  Each separate
+   bit of documentation is separated a blank line, and if PRE_BLANK is true,
+   then the first is as well.  If FIRST_ONLY is true, only the first
+   occurance is output.  Returns true if anything was output.  */
+static int
+argp_doc (const struct argp *argp, const struct argp_state *state,
+	  int post, int pre_blank, int first_only,
+	  argp_fmtstream_t stream)
+{
+  const char *text;
+  const char *inp_text;
+  void *input = 0;
+  int anything = 0;
+  size_t inp_text_limit = 0;
+  const char *doc = gettext (argp->doc);
+  const struct argp_child *child = argp->children;
+
+  if (doc)
+    {
+      char *vt = strchr (doc, '\v');
+      inp_text = post ? (vt ? vt + 1 : 0) : doc;
+      inp_text_limit = (!post && vt) ? (vt - doc) : 0;
+    }
+  else
+    inp_text = 0;
+
+  if (argp->help_filter)
+    /* We have to filter the doc strings.  */
+    {
+      if (inp_text_limit)
+	/* Copy INP_TEXT so that it's nul-terminated.  */
+	inp_text = strndup (inp_text, inp_text_limit);
+      input = __argp_input (argp, state);
+      text =
+	(*argp->help_filter) (post
+			      ? ARGP_KEY_HELP_POST_DOC
+			      : ARGP_KEY_HELP_PRE_DOC,
+			      inp_text, input);
+    }
+  else
+    text = (const char *) inp_text;
+
+  if (text)
+    {
+      if (pre_blank)
+	__argp_fmtstream_putc (stream, '\n');
+
+      if (text == inp_text && inp_text_limit)
+	__argp_fmtstream_write (stream, inp_text, inp_text_limit);
+      else
+	__argp_fmtstream_puts (stream, text);
+
+      if (__argp_fmtstream_point (stream) > __argp_fmtstream_lmargin (stream))
+	__argp_fmtstream_putc (stream, '\n');
+
+      anything = 1;
+    }
+
+  if (text && text != inp_text)
+    free ((char *) text);	/* Free TEXT returned from the help filter.  */
+  if (inp_text && inp_text_limit && argp->help_filter)
+    free ((char *) inp_text);	/* We copied INP_TEXT, so free it now.  */
+
+  if (post && argp->help_filter)
+    /* Now see if we have to output a ARGP_KEY_HELP_EXTRA text.  */
+    {
+      text = (*argp->help_filter) (ARGP_KEY_HELP_EXTRA, 0, input);
+      if (text)
+	{
+	  if (anything || pre_blank)
+	    __argp_fmtstream_putc (stream, '\n');
+	  __argp_fmtstream_puts (stream, text);
+	  free ((char *) text);
+	  if (__argp_fmtstream_point (stream)
+	      > __argp_fmtstream_lmargin (stream))
+	    __argp_fmtstream_putc (stream, '\n');
+	  anything = 1;
+	}
+    }
+
+  if (child)
+    while (child->argp && !(first_only && anything))
+      anything |=
+	argp_doc ((child++)->argp, state,
+		  post, anything || pre_blank, first_only,
+		  stream);
+
+  return anything;
+}
+
+/* Output a usage message for ARGP to STREAM.  If called from
+   argp_state_help, STATE is the relevent parsing state.  FLAGS are from the
+   set ARGP_HELP_*.  NAME is what to use wherever a `program name' is
+   needed. */
+static void
+_help (const struct argp *argp, const struct argp_state *state, FILE *stream,
+       unsigned flags, char *name)
+{
+  int anything = 0;		/* Whether we've output anything.  */
+  struct hol *hol = 0;
+  argp_fmtstream_t fs;
+
+  if (! stream)
+    return;
+
+  if (! uparams.valid)
+    fill_in_uparams (state);
+
+  fs = __argp_make_fmtstream (stream, 0, uparams.rmargin, 0);
+  if (! fs)
+    return;
+
+  if (flags & (ARGP_HELP_USAGE | ARGP_HELP_SHORT_USAGE | ARGP_HELP_LONG))
+    {
+      hol = argp_hol (argp, 0);
+
+      /* If present, these options always come last.  */
+      hol_set_group (hol, "help", -1);
+      hol_set_group (hol, "version", -1);
+
+      hol_sort (hol);
+    }
+
+  if (flags & (ARGP_HELP_USAGE | ARGP_HELP_SHORT_USAGE))
+    /* Print a short `Usage:' message.  */
+    {
+      int first_pattern = 1, more_patterns;
+      size_t num_pattern_levels = argp_args_levels (argp);
+      char *pattern_levels = alloca (num_pattern_levels);
+
+      memset (pattern_levels, 0, num_pattern_levels);
+
+      do
+	{
+	  int old_lm;
+	  int old_wm = __argp_fmtstream_set_wmargin (fs, USAGE_INDENT);
+	  char *levels = pattern_levels;
+
+	  __argp_fmtstream_printf (fs, "%s %s",
+				   _(first_pattern ? "Usage:" : "  or: "),
+				   name);
+
+	  /* We set the lmargin as well as the wmargin, because hol_usage
+	     manually wraps options with newline to avoid annoying breaks.  */
+	  old_lm = __argp_fmtstream_set_lmargin (fs, USAGE_INDENT);
+
+	  if (flags & ARGP_HELP_SHORT_USAGE)
+	    /* Just show where the options go.  */
+	    {
+	      if (hol->num_entries > 0)
+		__argp_fmtstream_puts (fs, _(" [OPTION...]"));
+	    }
+	  else
+	    /* Actually print the options.  */
+	    {
+	      hol_usage (hol, fs);
+	      flags |= ARGP_HELP_SHORT_USAGE; /* But only do so once.  */
+	    }
+
+	  more_patterns = argp_args_usage (argp, state, &levels, 1, fs);
+
+	  __argp_fmtstream_set_wmargin (fs, old_wm);
+	  __argp_fmtstream_set_lmargin (fs, old_lm);
+
+	  __argp_fmtstream_putc (fs, '\n');
+	  anything = 1;
+
+	  first_pattern = 0;
+	}
+      while (more_patterns);
+    }
+
+  if (flags & ARGP_HELP_PRE_DOC)
+    anything |= argp_doc (argp, state, 0, 0, 1, fs);
+
+  if (flags & ARGP_HELP_SEE)
+    {
+      __argp_fmtstream_printf (fs, _("\
+Try `%s --help' or `%s --usage' for more information.\n"),
+			       name, name);
+      anything = 1;
+    }
+
+  if (flags & ARGP_HELP_LONG)
+    /* Print a long, detailed help message.  */
+    {
+      /* Print info about all the options.  */
+      if (hol->num_entries > 0)
+	{
+	  if (anything)
+	    __argp_fmtstream_putc (fs, '\n');
+	  hol_help (hol, state, fs);
+	  anything = 1;
+	}
+    }
+
+  if (flags & ARGP_HELP_POST_DOC)
+    /* Print any documentation strings at the end.  */
+    anything |= argp_doc (argp, state, 1, anything, 0, fs);
+
+  if ((flags & ARGP_HELP_BUG_ADDR) && argp_program_bug_address)
+    {
+      if (anything)
+	__argp_fmtstream_putc (fs, '\n');
+      __argp_fmtstream_printf (fs, _("Report bugs to %s.\n"),
+ 			       argp_program_bug_address);
+      anything = 1;
+    }
+
+  if (hol)
+    hol_free (hol);
+
+  __argp_fmtstream_free (fs);
+}
+
+/* Output a usage message for ARGP to STREAM.  FLAGS are from the set
+   ARGP_HELP_*.  NAME is what to use wherever a `program name' is needed. */
+void __argp_help (const struct argp *argp, FILE *stream,
+		  unsigned flags, char *name)
+{
+  _help (argp, 0, stream, flags, name);
+}
+#ifdef weak_alias
+weak_alias (__argp_help, argp_help)
+#endif
+
+/* Output, if appropriate, a usage message for STATE to STREAM.  FLAGS are
+   from the set ARGP_HELP_*.  */
+void
+__argp_state_help (const struct argp_state *state, FILE *stream, unsigned flags)
+{
+  if ((!state || ! (state->flags & ARGP_NO_ERRS)) && stream)
+    {
+      if (state && (state->flags & ARGP_LONG_ONLY))
+	flags |= ARGP_HELP_LONG_ONLY;
+
+      _help (state ? state->root_argp : 0, state, stream, flags,
+	     state ? state->name : program_invocation_short_name);
+
+      if (!state || ! (state->flags & ARGP_NO_EXIT))
+	{
+	  if (flags & ARGP_HELP_EXIT_ERR)
+	    exit (argp_err_exit_status);
+	  if (flags & ARGP_HELP_EXIT_OK)
+	    exit (0);
+	}
+  }
+}
+#ifdef weak_alias
+weak_alias (__argp_state_help, argp_state_help)
+#endif
+
+/* If appropriate, print the printf string FMT and following args, preceded
+   by the program name and `:', to stderr, and followed by a `Try ... --help'
+   message, then exit (1).  */
+void
+__argp_error (const struct argp_state *state, const char *fmt, ...)
+{
+  if (!state || !(state->flags & ARGP_NO_ERRS))
+    {
+      FILE *stream = state ? state->err_stream : stderr;
+
+      if (stream)
+	{
+	  va_list ap;
+
+	  fputs (state ? state->name : program_invocation_short_name, stream);
+	  putc (':', stream);
+	  putc (' ', stream);
+
+	  va_start (ap, fmt);
+	  vfprintf (stream, fmt, ap);
+	  va_end (ap);
+
+	  putc ('\n', stream);
+
+	  __argp_state_help (state, stream, ARGP_HELP_STD_ERR);
+	}
+    }
+}
+#ifdef weak_alias
+weak_alias (__argp_error, argp_error)
+#endif
+
+/* Similar to the standard gnu error-reporting function error(), but will
+   respect the ARGP_NO_EXIT and ARGP_NO_ERRS flags in STATE, and will print
+   to STATE->err_stream.  This is useful for argument parsing code that is
+   shared between program startup (when exiting is desired) and runtime
+   option parsing (when typically an error code is returned instead).  The
+   difference between this function and argp_error is that the latter is for
+   *parsing errors*, and the former is for other problems that occur during
+   parsing but don't reflect a (syntactic) problem with the input.  */
+void
+__argp_failure (const struct argp_state *state, int status, int errnum,
+		const char *fmt, ...)
+{
+  if (!state || !(state->flags & ARGP_NO_ERRS))
+    {
+      FILE *stream = state ? state->err_stream : stderr;
+
+      if (stream)
+	{
+	  fputs (state ? state->name : program_invocation_short_name, stream);
+
+	  if (fmt)
+	    {
+	      va_list ap;
+
+	      putc (':', stream);
+	      putc (' ', stream);
+
+	      va_start (ap, fmt);
+	      vfprintf (stream, fmt, ap);
+	      va_end (ap);
+	    }
+
+	  if (errnum)
+	    {
+	      putc (':', stream);
+	      putc (' ', stream);
+	      fputs (strerror (errnum), stream);
+	    }
+
+	  putc ('\n', stream);
+
+	  if (status && (!state || !(state->flags & ARGP_NO_EXIT)))
+	    exit (status);
+	}
+    }
+}
+#ifdef weak_alias
+weak_alias (__argp_failure, argp_failure)
+#endif
diff --git a/support/argp-namefrob.h b/support/argp-namefrob.h
new file mode 100644
index 0000000..983ae9f
--- /dev/null
+++ b/support/argp-namefrob.h
@@ -0,0 +1,92 @@
+/* Name frobnication for compiling argp outside of glibc
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Written by Miles Bader <miles@gnu.ai.mit.edu>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#if !_LIBC
+/* This code is written for inclusion in gnu-libc, and uses names in the
+   namespace reserved for libc.  If we're not compiling in libc, define those
+   names to be the normal ones instead.  */
+
+/* argp-parse functions */
+#undef __argp_parse
+#define __argp_parse argp_parse
+#undef __option_is_end
+#define __option_is_end _option_is_end
+#undef __option_is_short
+#define __option_is_short _option_is_short
+#undef __argp_input
+#define __argp_input _argp_input
+
+/* argp-help functions */
+#undef __argp_help
+#define __argp_help argp_help
+#undef __argp_error
+#define __argp_error argp_error
+#undef __argp_failure
+#define __argp_failure argp_failure
+#undef __argp_state_help
+#define __argp_state_help argp_state_help
+#undef __argp_usage
+#define __argp_usage argp_usage
+
+/* argp-fmtstream functions */
+#undef __argp_make_fmtstream
+#define __argp_make_fmtstream argp_make_fmtstream
+#undef __argp_fmtstream_free
+#define __argp_fmtstream_free argp_fmtstream_free
+#undef __argp_fmtstream_putc
+#define __argp_fmtstream_putc argp_fmtstream_putc
+#undef __argp_fmtstream_puts
+#define __argp_fmtstream_puts argp_fmtstream_puts
+#undef __argp_fmtstream_write
+#define __argp_fmtstream_write argp_fmtstream_write
+#undef __argp_fmtstream_printf
+#define __argp_fmtstream_printf argp_fmtstream_printf
+#undef __argp_fmtstream_set_lmargin
+#define __argp_fmtstream_set_lmargin argp_fmtstream_set_lmargin
+#undef __argp_fmtstream_set_rmargin
+#define __argp_fmtstream_set_rmargin argp_fmtstream_set_rmargin
+#undef __argp_fmtstream_set_wmargin
+#define __argp_fmtstream_set_wmargin argp_fmtstream_set_wmargin
+#undef __argp_fmtstream_point
+#define __argp_fmtstream_point argp_fmtstream_point
+#undef __argp_fmtstream_update
+#define __argp_fmtstream_update _argp_fmtstream_update
+#undef __argp_fmtstream_ensure
+#define __argp_fmtstream_ensure _argp_fmtstream_ensure
+#undef __argp_fmtstream_lmargin
+#define __argp_fmtstream_lmargin argp_fmtstream_lmargin
+#undef __argp_fmtstream_rmargin
+#define __argp_fmtstream_rmargin argp_fmtstream_rmargin
+#undef __argp_fmtstream_wmargin
+#define __argp_fmtstream_wmargin argp_fmtstream_wmargin
+
+/* normal libc functions we call */
+#undef __sleep
+#define __sleep sleep
+#undef __strcasecmp
+#define __strcasecmp strcasecmp
+#undef __vsnprintf
+#define __vsnprintf vsnprintf
+
+#endif /* !_LIBC */
+
+#ifndef __set_errno
+#define __set_errno(e) (errno = (e))
+#endif
diff --git a/support/argp-parse.c b/support/argp-parse.c
new file mode 100644
index 0000000..edc5516
--- /dev/null
+++ b/support/argp-parse.c
@@ -0,0 +1,896 @@
+/* Hierarchial argument parsing, layered over getopt
+   Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Written by Miles Bader <miles@gnu.ai.mit.edu>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <limits.h>
+#include <getopt.h>
+
+#ifndef _
+/* This is for other GNU distributions with internationalized messages.
+   When compiling libc, the _ macro is predefined.  */
+#ifdef HAVE_LIBINTL_H
+# include <libintl.h>
+# define _(msgid)       gettext (msgid)
+#else
+# define _(msgid)       (msgid)
+# define gettext(msgid) (msgid)
+#endif
+#endif
+
+#if _LIBC - 0
+#include <libc-lock.h>
+#else
+#ifdef HAVE_CTHREADS_H
+#include <cthreads.h>
+#endif
+#endif /* _LIBC */
+
+#include "argp.h"
+#include "argp-namefrob.h"
+
+/* Getopt return values.  */
+#define KEY_END (-1)		/* The end of the options.  */
+#define KEY_ARG 1		/* A non-option argument.  */
+#define KEY_ERR '?'		/* An error parsing the options.  */
+
+/* The meta-argument used to prevent any further arguments being interpreted
+   as options.  */
+#define QUOTE "--"
+
+/* The number of bits we steal in a long-option value for our own use.  */
+#define GROUP_BITS CHAR_BIT
+
+/* The number of bits available for the user value.  */
+#define USER_BITS ((sizeof ((struct option *)0)->val * CHAR_BIT) - GROUP_BITS)
+#define USER_MASK ((1 << USER_BITS) - 1)
+
+/* EZ alias for ARGP_ERR_UNKNOWN.  */
+#define EBADKEY ARGP_ERR_UNKNOWN
+
+/* Default options.  */
+
+/* When argp is given the --HANG switch, _ARGP_HANG is set and argp will sleep
+   for one second intervals, decrementing _ARGP_HANG until it's zero.  Thus
+   you can force the program to continue by attaching a debugger and setting
+   it to 0 yourself.  */
+volatile int _argp_hang = 0;
+
+#define OPT_PROGNAME	-2
+#define OPT_USAGE	-3
+#define OPT_HANG	-4
+
+static const struct argp_option argp_default_options[] =
+{
+  {"help",	  '?',    	0, 0,  "Give this help list", -1},
+  {"usage",	  OPT_USAGE,	0, 0,  "Give a short usage message"},
+  {"program-name",OPT_PROGNAME,"NAME", OPTION_HIDDEN, "Set the program name"},
+  {"HANG",	  OPT_HANG,    "SECS", OPTION_ARG_OPTIONAL | OPTION_HIDDEN,
+     "Hang for SECS seconds (default 3600)"},
+  {0, 0}
+};
+
+static error_t
+argp_default_parser (int key, char *arg, struct argp_state *state)
+{
+  switch (key)
+    {
+    case '?':
+      __argp_state_help (state, state->out_stream, ARGP_HELP_STD_HELP);
+      break;
+    case OPT_USAGE:
+      __argp_state_help (state, state->out_stream,
+		       ARGP_HELP_USAGE | ARGP_HELP_EXIT_OK);
+      break;
+
+    case OPT_PROGNAME:		/* Set the program name.  */
+      program_invocation_name = arg;
+
+      /* [Note that some systems only have PROGRAM_INVOCATION_SHORT_NAME (aka
+	 __PROGNAME), in which case, PROGRAM_INVOCATION_NAME is just defined
+	 to be that, so we have to be a bit careful here.]  */
+      arg = strrchr (arg, '/');
+      if (arg)
+	program_invocation_short_name = arg + 1;
+      else
+	program_invocation_short_name = program_invocation_name;
+
+      /* Update what we use for messages.  */
+      state->name = program_invocation_short_name;
+
+      if ((state->flags & (ARGP_PARSE_ARGV0 | ARGP_NO_ERRS))
+	  == ARGP_PARSE_ARGV0)
+	/* Update what getopt uses too.  */
+	state->argv[0] = program_invocation_name;
+
+      break;
+
+    case OPT_HANG:
+      _argp_hang = atoi (arg ? arg : "3600");
+      while (_argp_hang-- > 0)
+	__sleep (1);
+      break;
+
+    default:
+      return EBADKEY;
+    }
+  return 0;
+}
+
+static const struct argp argp_default_argp =
+  {argp_default_options, &argp_default_parser};
+
+
+static const struct argp_option argp_version_options[] =
+{
+  {"version",	  'V',    	0, 0,  "Print program version", -1},
+  {0, 0}
+};
+
+static error_t
+argp_version_parser (int key, char *arg, struct argp_state *state)
+{
+  switch (key)
+    {
+    case 'V':
+      if (argp_program_version_hook)
+	(*argp_program_version_hook) (state->out_stream, state);
+      else if (argp_program_version)
+	fprintf (state->out_stream, "%s\n", argp_program_version);
+      else
+	__argp_error (state, _("No version known!?"));
+      if (! (state->flags & ARGP_NO_EXIT))
+	exit (0);
+      break;
+    default:
+      return EBADKEY;
+    }
+  return 0;
+}
+
+static const struct argp argp_version_argp =
+  {argp_version_options, &argp_version_parser};
+
+/* Returns the offset into the getopt long options array LONG_OPTIONS of a
+   long option with called NAME, or -1 if none is found.  Passing NULL as
+   NAME will return the number of options.  */
+static int
+find_long_option (struct option *long_options, const char *name)
+{
+  struct option *l = long_options;
+  while (l->name != NULL)
+    if (name != NULL && strcmp (l->name, name) == 0)
+      return l - long_options;
+    else
+      l++;
+  if (name == NULL)
+    return l - long_options;
+  else
+    return -1;
+}
+
+/* If we can, we regulate access to getopt, which is non-reentrant, with a
+   mutex.  Since the case we're trying to guard against is two different
+   threads interfering, and it's possible that someone might want to call
+   argp_parse recursively (they're careful), we use a recursive lock if
+   possible.  */
+
+#if _LIBC - 0
+
+__libc_lock_define_initialized_recursive (static, getopt_lock)
+#define LOCK_GETOPT   __libc_lock_lock_recursive (getopt_lock)
+#define UNLOCK_GETOPT __libc_lock_unlock_recursive (getopt_lock)
+
+#else /* !_LIBC */
+#ifdef HAVE_CTHREADS_H
+
+static struct mutex getopt_lock = MUTEX_INITIALIZER;
+#define LOCK_GETOPT   mutex_lock (&getopt_lock)
+#define UNLOCK_GETOPT mutex_unlock (&getopt_lock)
+
+#else /* !HAVE_CTHREADS_H */
+
+#define LOCK_GETOPT    (void)0
+#define UNLOCK_GETOPT  (void)0
+
+#endif /* HAVE_CTHREADS_H */
+#endif /* _LIBC */
+
+/* This hack to allow programs that know what's going on to call argp
+   recursively.  If someday argp is changed not to use the non-reentrant
+   getopt interface, we can get rid of this shit.  XXX */
+void
+_argp_unlock_xxx (void)
+{
+  UNLOCK_GETOPT;
+}
+
+/* The state of a `group' during parsing.  Each group corresponds to a
+   particular argp structure from the tree of such descending from the top
+   level argp passed to argp_parse.  */
+struct group
+{
+  /* This group's parsing function.  */
+  argp_parser_t parser;
+
+  /* Which argp this group is from.  */
+  const struct argp *argp;
+
+  /* Points to the point in SHORT_OPTS corresponding to the end of the short
+     options for this group.  We use it to determine from which group a
+     particular short options is from.  */
+  char *short_end;
+
+  /* The number of non-option args sucessfully handled by this parser.  */
+  unsigned args_processed;
+
+  /* This group's parser's parent's group.  */
+  struct group *parent;
+  unsigned parent_index;	/* And the our position in the parent.   */
+
+  /* These fields are swapped into and out of the state structure when
+     calling this group's parser.  */
+  void *input, **child_inputs;
+  void *hook;
+};
+
+/* Call GROUP's parser with KEY and ARG, swapping any group-specific info
+   from STATE before calling, and back into state afterwards.  If GROUP has
+   no parser, EBADKEY is returned.  */
+static error_t
+group_parse (struct group *group, struct argp_state *state, int key, char *arg)
+{
+  if (group->parser)
+    {
+      error_t err;
+      state->hook = group->hook;
+      state->input = group->input;
+      state->child_inputs = group->child_inputs;
+      state->arg_num = group->args_processed;
+      err = (*group->parser)(key, arg, state);
+      group->hook = state->hook;
+      return err;
+    }
+  else
+    return EBADKEY;
+}
+
+struct parser
+{
+  const struct argp *argp;
+
+  /* SHORT_OPTS is the getopt short options string for the union of all the
+     groups of options.  */
+  char *short_opts;
+  /* LONG_OPTS is the array of getop long option structures for the union of
+     all the groups of options.  */
+  struct option *long_opts;
+
+  /* States of the various parsing groups.  */
+  struct group *groups;
+  /* The end of the GROUPS array.  */
+  struct group *egroup;
+  /* An vector containing storage for the CHILD_INPUTS field in all groups.  */
+  void **child_inputs;
+
+  /* True if we think using getopt is still useful; if false, then
+     remaining arguments are just passed verbatim with ARGP_KEY_ARG.  This is
+     cleared whenever getopt returns KEY_END, but may be set again if the user
+     moves the next argument pointer backwards.  */
+  int try_getopt;
+
+  /* State block supplied to parsing routines.  */
+  struct argp_state state;
+
+  /* Memory used by this parser.  */
+  void *storage;
+};
+
+/* The next usable entries in the various parser tables being filled in by
+   convert_options.  */
+struct parser_convert_state
+{
+  struct parser *parser;
+  char *short_end;
+  struct option *long_end;
+  void **child_inputs_end;
+};
+
+/* Converts all options in ARGP (which is put in GROUP) and ancestors
+   into getopt options stored in SHORT_OPTS and LONG_OPTS; SHORT_END and
+   CVT->LONG_END are the points at which new options are added.  Returns the
+   next unused group entry.  CVT holds state used during the conversion.  */
+static struct group *
+convert_options (const struct argp *argp,
+		 struct group *parent, unsigned parent_index,
+		 struct group *group, struct parser_convert_state *cvt)
+{
+  /* REAL is the most recent non-alias value of OPT.  */
+  const struct argp_option *real = argp->options;
+  const struct argp_child *children = argp->children;
+
+  if (real || argp->parser)
+    {
+      const struct argp_option *opt;
+
+      if (real)
+	for (opt = real; !__option_is_end (opt); opt++)
+	  {
+	    if (! (opt->flags & OPTION_ALIAS))
+	      /* OPT isn't an alias, so we can use values from it.  */
+	      real = opt;
+
+	    if (! (real->flags & OPTION_DOC))
+	      /* A real option (not just documentation).  */
+	      {
+		if (__option_is_short (opt))
+		  /* OPT can be used as a short option.  */
+		  {
+		    *cvt->short_end++ = opt->key;
+		    if (real->arg)
+		      {
+			*cvt->short_end++ = ':';
+			if (real->flags & OPTION_ARG_OPTIONAL)
+			  *cvt->short_end++ = ':';
+		      }
+		    *cvt->short_end = '\0'; /* keep 0 terminated */
+		  }
+
+		if (opt->name
+		    && find_long_option (cvt->parser->long_opts, opt->name) < 0)
+		  /* OPT can be used as a long option.  */
+		  {
+		    cvt->long_end->name = opt->name;
+		    cvt->long_end->has_arg =
+		      (real->arg
+		       ? (real->flags & OPTION_ARG_OPTIONAL
+			  ? optional_argument
+			  : required_argument)
+		       : no_argument);
+		    cvt->long_end->flag = 0;
+		    /* we add a disambiguating code to all the user's
+		       values (which is removed before we actually call
+		       the function to parse the value); this means that
+		       the user loses use of the high 8 bits in all his
+		       values (the sign of the lower bits is preserved
+		       however)...  */
+		    cvt->long_end->val =
+		      ((opt->key | real->key) & USER_MASK)
+		      + (((group - cvt->parser->groups) + 1) << USER_BITS);
+
+		    /* Keep the LONG_OPTS list terminated.  */
+		    (++cvt->long_end)->name = NULL;
+		  }
+	      }
+	    }
+
+      group->parser = argp->parser;
+      group->argp = argp;
+      group->short_end = cvt->short_end;
+      group->args_processed = 0;
+      group->parent = parent;
+      group->parent_index = parent_index;
+      group->input = 0;
+      group->hook = 0;
+      group->child_inputs = 0;
+
+      if (children)
+	/* Assign GROUP's CHILD_INPUTS field some space from
+           CVT->child_inputs_end.*/
+	{
+	  unsigned num_children = 0;
+	  while (children[num_children].argp)
+	    num_children++;
+	  group->child_inputs = cvt->child_inputs_end;
+	  cvt->child_inputs_end += num_children;
+	}
+
+      parent = group++;
+    }
+  else
+    parent = 0;
+
+  if (children)
+    {
+      unsigned index = 0;
+      while (children->argp)
+	group =
+	  convert_options (children++->argp, parent, index++, group, cvt);
+    }
+
+  return group;
+}
+
+/* Find the merged set of getopt options, with keys appropiately prefixed. */
+static void
+parser_convert (struct parser *parser, const struct argp *argp, int flags)
+{
+  struct parser_convert_state cvt;
+
+  cvt.parser = parser;
+  cvt.short_end = parser->short_opts;
+  cvt.long_end = parser->long_opts;
+  cvt.child_inputs_end = parser->child_inputs;
+
+  if (flags & ARGP_IN_ORDER)
+    *cvt.short_end++ = '-';
+  else if (flags & ARGP_NO_ARGS)
+    *cvt.short_end++ = '+';
+  *cvt.short_end = '\0';
+
+  cvt.long_end->name = NULL;
+
+  parser->argp = argp;
+
+  if (argp)
+    parser->egroup = convert_options (argp, 0, 0, parser->groups, &cvt);
+  else
+    parser->egroup = parser->groups; /* No parsers at all! */
+}
+
+/* Lengths of various parser fields which we will allocated.  */
+struct parser_sizes
+{
+  size_t short_len;		/* Getopt short options string.  */
+  size_t long_len;		/* Getopt long options vector.  */
+  size_t num_groups;		/* Group structures we allocate.  */
+  size_t num_child_inputs;	/* Child input slots.  */
+};
+
+/* For ARGP, increments the NUM_GROUPS field in SZS by the total number of
+ argp structures descended from it, and the SHORT_LEN & LONG_LEN fields by
+ the maximum lengths of the resulting merged getopt short options string and
+ long-options array, respectively.  */
+static void
+calc_sizes (const struct argp *argp,  struct parser_sizes *szs)
+{
+  const struct argp_child *child = argp->children;
+  const struct argp_option *opt = argp->options;
+
+  if (opt || argp->parser)
+    {
+      szs->num_groups++;
+      if (opt)
+	{
+	  int num_opts = 0;
+	  while (!__option_is_end (opt++))
+	    num_opts++;
+	  szs->short_len += num_opts * 3; /* opt + up to 2 `:'s */
+	  szs->long_len += num_opts;
+	}
+    }
+
+  if (child)
+    while (child->argp)
+      {
+	calc_sizes ((child++)->argp, szs);
+	szs->num_child_inputs++;
+      }
+}
+
+/* Initializes PARSER to parse ARGP in a manner described by FLAGS.  */
+static error_t
+parser_init (struct parser *parser, const struct argp *argp,
+	     int argc, char **argv, int flags, void *input)
+{
+  error_t err = 0;
+  struct group *group;
+  struct parser_sizes szs;
+
+  szs.short_len = (flags & ARGP_NO_ARGS) ? 0 : 1;
+  szs.long_len = 0;
+  szs.num_groups = 0;
+  szs.num_child_inputs = 0;
+
+  if (argp)
+    calc_sizes (argp, &szs);
+
+  /* Lengths of the various bits of storage used by PARSER.  */
+#define GLEN (szs.num_groups + 1) * sizeof (struct group)
+#define CLEN (szs.num_child_inputs * sizeof (void *))
+#define LLEN ((szs.long_len + 1) * sizeof (struct option))
+#define SLEN (szs.short_len + 1)
+
+  parser->storage = malloc (GLEN + CLEN + LLEN + SLEN);
+  if (! parser->storage)
+    return ENOMEM;
+
+  parser->groups = parser->storage;
+  parser->child_inputs = parser->storage + GLEN;
+  parser->long_opts = parser->storage + GLEN + CLEN;
+  parser->short_opts = parser->storage + GLEN + CLEN + LLEN;
+
+  memset (parser->child_inputs, 0, szs.num_child_inputs * sizeof (void *));
+  parser_convert (parser, argp, flags);
+
+  memset (&parser->state, 0, sizeof (struct argp_state));
+  parser->state.root_argp = parser->argp;
+  parser->state.argc = argc;
+  parser->state.argv = argv;
+  parser->state.flags = flags;
+  parser->state.err_stream = stderr;
+  parser->state.out_stream = stdout;
+  parser->state.next = 0;	/* Tell getopt to initialize.  */
+  parser->state.pstate = parser;
+
+  parser->try_getopt = 1;
+
+  /* Call each parser for the first time, giving it a chance to propagate
+     values to child parsers.  */
+  if (parser->groups < parser->egroup)
+    parser->groups->input = input;
+  for (group = parser->groups;
+       group < parser->egroup && (!err || err == EBADKEY);
+       group++)
+    {
+      if (group->parent)
+	/* If a child parser, get the initial input value from the parent. */
+	group->input = group->parent->child_inputs[group->parent_index];
+
+      if (!group->parser
+	  && group->argp->children && group->argp->children->argp)
+	/* For the special case where no parsing function is supplied for an
+	   argp, propagate its input to its first child, if any (this just
+	   makes very simple wrapper argps more convenient).  */
+	group->child_inputs[0] = group->input;
+
+      err = group_parse (group, &parser->state, ARGP_KEY_INIT, 0);
+    }
+  if (err == EBADKEY)
+    err = 0;			/* Some parser didn't understand.  */
+
+  if (err)
+    return err;
+
+  /* Getopt is (currently) non-reentrant.  */
+  LOCK_GETOPT;
+
+  if (parser->state.flags & ARGP_NO_ERRS)
+    {
+      opterr = 0;
+      if (parser->state.flags & ARGP_PARSE_ARGV0)
+	/* getopt always skips ARGV[0], so we have to fake it out.  As long
+	   as OPTERR is 0, then it shouldn't actually try to access it.  */
+	parser->state.argv--, parser->state.argc++;
+    }
+  else
+    opterr = 1;		/* Print error messages.  */
+
+  if (parser->state.argv == argv && argv[0])
+    /* There's an argv[0]; use it for messages.  */
+    {
+      char *short_name = strrchr (argv[0], '/');
+      parser->state.name = short_name ? short_name + 1 : argv[0];
+    }
+  else
+    parser->state.name = program_invocation_short_name;
+
+  return 0;
+}
+
+/* Free any storage consumed by PARSER (but not PARSER itself).  */
+static error_t
+parser_finalize (struct parser *parser,
+		 error_t err, int arg_ebadkey, int *end_index)
+{
+  struct group *group;
+
+  UNLOCK_GETOPT;
+
+  if (err == EBADKEY && arg_ebadkey)
+    /* Suppress errors generated by unparsed arguments.  */
+    err = 0;
+
+  if (! err)
+    if (parser->state.next == parser->state.argc)
+      /* We successfully parsed all arguments!  Call all the parsers again,
+	 just a few more times... */
+      {
+	for (group = parser->groups;
+	     group < parser->egroup && (!err || err==EBADKEY);
+	     group++)
+	  if (group->args_processed == 0)
+	    err = group_parse (group, &parser->state, ARGP_KEY_NO_ARGS, 0);
+	for (group = parser->groups;
+	     group < parser->egroup && (!err || err==EBADKEY);
+	     group++)
+	  err = group_parse (group, &parser->state, ARGP_KEY_END, 0);
+
+	if (err == EBADKEY)
+	  err = 0;		/* Some parser didn't understand.  */
+
+	/* Tell the user that all arguments are parsed.  */
+	if (end_index)
+	  *end_index = parser->state.next;
+      }
+    else if (end_index)
+      /* Return any remaining arguments to the user.  */
+      *end_index = parser->state.next;
+    else
+      /* No way to return the remaining arguments, they must be bogus. */
+      {
+	if (!(parser->state.flags & ARGP_NO_ERRS) && parser->state.err_stream)
+	  fprintf (parser->state.err_stream,
+		   _("%s: Too many arguments\n"), parser->state.name);
+	err = EBADKEY;
+      }
+
+  /* Okay, we're all done, with either an error or success.  We only call the
+     parsers once more, to indicate which one.  */
+
+  if (err)
+    {
+      /* Maybe print an error message.  */
+      if (err == EBADKEY)
+	/* An appropriate message describing what the error was should have
+	   been printed earlier.  */
+	__argp_state_help (&parser->state, parser->state.err_stream,
+			   ARGP_HELP_STD_ERR);
+
+      /* Since we didn't exit, give each parser an error indication.  */
+      for (group = parser->groups; group < parser->egroup; group++)
+	group_parse (group, &parser->state, ARGP_KEY_ERROR, 0);
+    }
+  else
+    /* Do final cleanup, including propagating back values from parsers.  */
+    {
+      /* We pass over the groups in reverse order so that child groups are
+	 given a chance to do there processing before passing back a value to
+	 the parent.  */
+      for (group = parser->egroup - 1
+	   ; group >= parser->groups && (!err || err == EBADKEY)
+	   ; group--)
+	err = group_parse (group, &parser->state, ARGP_KEY_SUCCESS, 0);
+      if (err == EBADKEY)
+	err = 0;		/* Some parser didn't understand.  */
+    }
+
+  if (err == EBADKEY)
+    err = EINVAL;
+
+  free (parser->storage);
+
+  return err;
+}
+
+/* Call the user parsers to parse the non-option argument VAL, at the current
+   position, returning any error.  */
+static error_t
+parser_parse_arg (struct parser *parser, char *val)
+{
+  int index = parser->state.next;
+  error_t err = EBADKEY;
+  struct group *group;
+
+  for (group = parser->groups
+       ; group < parser->egroup && err == EBADKEY
+       ; group++)
+    err = group_parse (group, &parser->state, ARGP_KEY_ARG, val);
+
+  if (!err)
+    if (parser->state.next >= index)
+      /* Remember that we successfully processed a non-option
+	 argument -- but only if the user hasn't gotten tricky and set
+	 the clock back.  */
+      (--group)->args_processed++;
+    else
+      /* The user wants to reparse some args, give getopt another try.  */
+      parser->try_getopt = 1;
+
+  return err;
+}
+
+/* Call the user parsers to parse the option OPT, with argument VAL, at the
+   current position, returning any error.  */
+static error_t
+parser_parse_opt (struct parser *parser, int opt, char *val)
+{
+  /* The group key encoded in the high bits; 0 for short opts or
+     group_number + 1 for long opts.  */
+  int group_key = opt >> USER_BITS;
+
+  if (group_key == 0)
+    /* A short option.  By comparing OPT's position in SHORT_OPTS to the
+       various starting positions in each group's SHORT_END field, we can
+       determine which group OPT came from.  */
+    {
+      struct group *group;
+      char *short_index = strchr (parser->short_opts, opt);
+
+      if (short_index)
+	for (group = parser->groups; group < parser->egroup; group++)
+	  if (group->short_end > short_index)
+	    return group_parse (group, &parser->state, opt, optarg);
+
+      return EBADKEY;		/* until otherwise asserted */
+    }
+  else
+    /* A long option.  We use shifts instead of masking for extracting
+       the user value in order to preserve the sign.  */
+    return
+      group_parse (&parser->groups[group_key - 1], &parser->state,
+		   (opt << GROUP_BITS) >> GROUP_BITS, optarg);
+}
+
+/* Parse the next argument in PARSER (as indicated by PARSER->state.next).
+   Any error from the parsers is returned, and *ARGP_EBADKEY indicates
+   whether a value of EBADKEY is due to an unrecognized argument (which is
+   generally not fatal).  */
+static error_t
+parser_parse_next (struct parser *parser, int *arg_ebadkey)
+{
+  int opt;
+  error_t err = 0;
+
+  if (parser->state.quoted && parser->state.next < parser->state.quoted)
+    /* The next argument pointer has been moved to before the quoted
+       region, so pretend we never saw the quoting `--', and give getopt
+       another chance.  If the user hasn't removed it, getopt will just
+       process it again.  */
+    parser->state.quoted = 0;
+
+  if (parser->try_getopt && !parser->state.quoted)
+    /* Give getopt a chance to parse this.  */
+    {
+      optind = parser->state.next; /* Put it back in OPTIND for getopt.  */
+      optopt = KEY_END;	/* Distinguish KEY_ERR from a real option.  */
+      if (parser->state.flags & ARGP_LONG_ONLY)
+	opt = getopt_long_only (parser->state.argc, parser->state.argv,
+				parser->short_opts, parser->long_opts, 0);
+      else
+	opt = getopt_long (parser->state.argc, parser->state.argv,
+			   parser->short_opts, parser->long_opts, 0);
+      parser->state.next = optind; /* And see what getopt did.  */
+
+      if (opt == KEY_END)
+	/* Getopt says there are no more options, so stop using
+	   getopt; we'll continue if necessary on our own.  */
+	{
+	  parser->try_getopt = 0;
+	  if (parser->state.next > 1
+	      && strcmp (parser->state.argv[parser->state.next - 1], QUOTE)
+	           == 0)
+	    /* Not only is this the end of the options, but it's a
+	       `quoted' region, which may have args that *look* like
+	       options, so we definitely shouldn't try to use getopt past
+	       here, whatever happens.  */
+	    parser->state.quoted = parser->state.next;
+	}
+      else if (opt == KEY_ERR && optopt != KEY_END)
+	/* KEY_ERR can have the same value as a valid user short
+	   option, but in the case of a real error, getopt sets OPTOPT
+	   to the offending character, which can never be KEY_END.  */
+	{
+	  *arg_ebadkey = 0;
+	  return EBADKEY;
+	}
+    }
+  else
+    opt = KEY_END;
+
+  if (opt == KEY_END)
+    /* We're past what getopt considers the options.  */
+    if (parser->state.next >= parser->state.argc
+	|| (parser->state.flags & ARGP_NO_ARGS))
+      /* Indicate that we're done.  */
+      {
+	*arg_ebadkey = 1;
+	return EBADKEY;
+      }
+    else
+      /* A non-option arg.  */
+      err =
+	parser_parse_arg (parser, parser->state.argv[parser->state.next++]);
+  else if (opt == KEY_ARG)
+    /* A non-option argument; try each parser in turn.  */
+    err = parser_parse_arg (parser, optarg);
+  else
+    err = parser_parse_opt (parser, opt, optarg);
+
+  if (err == EBADKEY)
+    {
+      *arg_ebadkey = (opt == KEY_END || opt == KEY_ARG);
+      parser->state.next--;	/* Put back the unused argument.  */
+    }
+
+  return err;
+}
+
+/* Parse the options strings in ARGC & ARGV according to the argp in ARGP.
+   FLAGS is one of the ARGP_ flags above.  If END_INDEX is non-NULL, the
+   index in ARGV of the first unparsed option is returned in it.  If an
+   unknown option is present, EINVAL is returned; if some parser routine
+   returned a non-zero value, it is returned; otherwise 0 is returned.  */
+error_t
+__argp_parse (const struct argp *argp, int argc, char **argv, unsigned flags,
+	      int *end_index, void *input)
+{
+  error_t err;
+  struct parser parser;
+
+  /* If true, then err == EBADKEY is a result of a non-option argument failing
+     to be parsed (which in some cases isn't actually an error).  */
+  int arg_ebadkey = 0;
+
+  if (! (flags & ARGP_NO_HELP))
+    /* Add our own options.  */
+    {
+      struct argp_child *child = alloca (4 * sizeof (struct argp_child));
+      struct argp *top_argp = alloca (sizeof (struct argp));
+
+      /* TOP_ARGP has no options, it just serves to group the user & default
+	 argps.  */
+      memset (top_argp, 0, sizeof (*top_argp));
+      top_argp->children = child;
+
+      memset (child, 0, 4 * sizeof (struct argp_child));
+
+      if (argp)
+	(child++)->argp = argp;
+      (child++)->argp = &argp_default_argp;
+      if (argp_program_version || argp_program_version_hook)
+	(child++)->argp = &argp_version_argp;
+      child->argp = 0;
+
+      argp = top_argp;
+    }
+
+  /* Construct a parser for these arguments.  */
+  err = parser_init (&parser, argp, argc, argv, flags, input);
+
+  if (! err)
+    /* Parse! */
+    {
+      while (! err)
+	err = parser_parse_next (&parser, &arg_ebadkey);
+      err = parser_finalize (&parser, err, arg_ebadkey, end_index);
+    }
+
+  return err;
+}
+#ifdef weak_alias
+weak_alias (__argp_parse, argp_parse)
+#endif
+
+/* Return the input field for ARGP in the parser corresponding to STATE; used
+   by the help routines.  */
+void *
+__argp_input (const struct argp *argp, const struct argp_state *state)
+{
+  if (state)
+    {
+      struct group *group;
+      struct parser *parser = state->pstate;
+
+      for (group = parser->groups; group < parser->egroup; group++)
+	if (group->argp == argp)
+	  return group->input;
+    }
+
+  return 0;
+}
+#ifdef weak_alias
+weak_alias (__argp_input, _argp_input)
+#endif
diff --git a/support/argp-pv.c b/support/argp-pv.c
new file mode 100644
index 0000000..27d714b
--- /dev/null
+++ b/support/argp-pv.c
@@ -0,0 +1,25 @@
+/* Default definition for ARGP_PROGRAM_VERSION.
+   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Written by Miles Bader <miles@gnu.ai.mit.edu>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* If set by the user program to a non-zero value, then a default option
+   --version is added (unless the ARGP_NO_HELP flag is used), which will
+   print this this string followed by a newline and exit (unless the
+   ARGP_NO_EXIT flag is used).  Overridden by ARGP_PROGRAM_VERSION_HOOK.  */
+const char *argp_program_version = 0;
diff --git a/support/argp-pvh.c b/support/argp-pvh.c
new file mode 100644
index 0000000..ed60aa9
--- /dev/null
+++ b/support/argp-pvh.c
@@ -0,0 +1,32 @@
+/* Default definition for ARGP_PROGRAM_VERSION_HOOK.
+   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Written by Miles Bader <miles@gnu.ai.mit.edu>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "argp.h"
+
+/* If set by the user program to a non-zero value, then a default option
+   --version is added (unless the ARGP_NO_HELP flag is used), which calls
+   this function with a stream to print the version to and a pointer to the
+   current parsing state, and then exits (unless the ARGP_NO_EXIT flag is
+   used).  This variable takes precedent over ARGP_PROGRAM_VERSION.  */
+void (*argp_program_version_hook) (FILE *stream, struct argp_state *state) = 0;
diff --git a/support/argp-test.c b/support/argp-test.c
new file mode 100644
index 0000000..702ae9a
--- /dev/null
+++ b/support/argp-test.c
@@ -0,0 +1,209 @@
+/* Test program for argp argument parser
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Written by Miles Bader <miles@gnu.ai.mit.edu>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <time.h>
+#include <string.h>
+#include <argp.h>
+
+const char *argp_program_version = "argp-test 1.0";
+
+struct argp_option sub_options[] =
+{
+  {"subopt1",       's',     0,  0, "Nested option 1"},
+  {"subopt2",       'S',     0,  0, "Nested option 2"},
+
+  { 0, 0, 0, 0, "Some more nested options:", 10},
+  {"subopt3",       'p',     0,  0, "Nested option 3"},
+
+  {"subopt4",       'q',     0,  0, "Nested option 4", 1},
+
+  {0}
+};
+
+static const char sub_args_doc[] = "STRING...\n-";
+static const char sub_doc[] = "\vThis is the doc string from the sub-arg-parser.";
+
+static error_t
+sub_parse_opt (int key, char *arg, struct argp_state *state)
+{
+  switch (key)
+    {
+    case ARGP_KEY_NO_ARGS:
+      printf ("NO SUB ARGS\n");
+      break;
+    case ARGP_KEY_ARG:
+      printf ("SUB ARG: %s\n", arg);
+      break;
+
+    case 's' : case 'S': case 'p': case 'q':
+      printf ("SUB KEY %c\n", key);
+      break;
+
+    default:
+      return ARGP_ERR_UNKNOWN;
+    }
+  return 0;
+}
+
+static char *
+sub_help_filter (int key, const char *text, void *input)
+{
+  if (key == ARGP_KEY_HELP_EXTRA)
+    return strdup ("This is some extra text from the sub parser (note that it \
+is preceded by a blank line).");
+  else
+    return (char *)text;
+}
+
+static struct argp sub_argp = {
+  sub_options, sub_parse_opt, sub_args_doc, sub_doc, 0, sub_help_filter
+};
+
+/* Structure used to communicate with the parsing functions.  */
+struct params
+{
+  unsigned foonly;		/* Value parsed for foonly.  */
+  unsigned foonly_default;	/* Default value for it.  */
+};
+
+#define OPT_PGRP 1
+#define OPT_SESS 2
+
+struct argp_option options[] =
+{
+  {"pid",       'p',     "PID", 0, "List the process PID"},
+  {"pgrp",      OPT_PGRP,"PGRP",0, "List processes in the process group PGRP"},
+  {"no-parent", 'P',	 0,     0, "Include processes without parents"},
+  {0,           'x',     0,     OPTION_ALIAS},
+  {"all-fields",'Q',     0,     0, "Don't elide unusable fields (normally"
+				   " if there's some reason ps can't"
+				   " print a field for any process, it's"
+				   " removed from the output entirely)" },
+  {"reverse",   'r',    0,      0, "Reverse the order of any sort"},
+  {"gratuitously-long-reverse-option", 0, 0, OPTION_ALIAS},
+  {"session",  OPT_SESS,"SID",  OPTION_ARG_OPTIONAL,
+				   "Add the processes from the session"
+				   " SID (which defaults to the sid of"
+				   " the current process)" },
+
+  {0,0,0,0, "Here are some more options:"},
+  {"foonly", 'f', "ZOT", OPTION_ARG_OPTIONAL, "Glork a foonly"},
+  {"zaza", 'z', 0, 0, "Snit a zar"},
+
+  {0}
+};
+
+static const char args_doc[] = "STRING";
+static const char doc[] = "Test program for argp."
+ "\vThis doc string comes after the options."
+ "\nHey!  Some manual formatting!"
+ "\nThe current time is: %s";
+
+static void
+popt (int key, char *arg)
+{
+  char buf[10];
+  if (isprint (key))
+    sprintf (buf, "%c", key);
+  else
+    sprintf (buf, "%d", key);
+  if (arg)
+    printf ("KEY %s: %s\n", buf, arg);
+  else
+    printf ("KEY %s\n", buf);
+}
+
+static error_t
+parse_opt (int key, char *arg, struct argp_state *state)
+{
+  struct params *params = state->input;
+
+  switch (key)
+    {
+    case ARGP_KEY_NO_ARGS:
+      printf ("NO ARGS\n");
+      break;
+
+    case ARGP_KEY_ARG:
+      if (state->arg_num > 0)
+	return ARGP_ERR_UNKNOWN; /* Leave it for the sub-arg parser.  */
+      printf ("ARG: %s\n", arg);
+      break;
+
+    case 'f':
+      if (arg)
+	params->foonly = atoi (arg);
+      else
+	params->foonly = params->foonly_default;
+      popt (key, arg);
+      break;
+
+    case 'p': case 'P': case OPT_PGRP: case 'x': case 'Q':
+    case 'r': case OPT_SESS: case 'z':
+      popt (key, arg);
+      break;
+
+    default:
+      return ARGP_ERR_UNKNOWN;
+    }
+  return 0;
+}
+
+static char *
+help_filter (int key, const char *text, void *input)
+{
+  char *new_text;
+  struct params *params = input;
+
+  if (key == ARGP_KEY_HELP_POST_DOC && text)
+    {
+      time_t now = time (0);
+      asprintf (&new_text, text, ctime (&now));
+    }
+  else if (key == 'f')
+    /* Show the default for the --foonly option.  */
+    asprintf (&new_text, "%s (ZOT defaults to %x)",
+	      text, params->foonly_default);
+  else
+    new_text = (char *)text;
+
+  return new_text;
+}
+
+static struct argp_child argp_children[] = { { &sub_argp }, { 0 } };
+static struct argp argp = {
+  options, parse_opt, args_doc, doc, argp_children, help_filter
+};
+
+int
+main (int argc, char **argv)
+{
+  struct params params;
+  params.foonly = 0;
+  params.foonly_default = random ();
+  argp_parse (&argp, argc, argv, 0, 0, &params);
+  printf ("After parsing: foonly = %x\n", params.foonly);
+  return 0;
+}
diff --git a/support/argp-xinl.c b/support/argp-xinl.c
new file mode 100644
index 0000000..35a8f83
--- /dev/null
+++ b/support/argp-xinl.c
@@ -0,0 +1,37 @@
+/* Real definitions for extern inline functions in argp.h
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Written by Miles Bader <miles@gnu.ai.mit.edu>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#define ARGP_EI
+#undef __OPTIMIZE__
+#define __OPTIMIZE__
+#include "argp.h"
+
+/* Add weak aliases.  */
+#if _LIBC - 0 && defined (weak_alias)
+
+weak_alias (__argp_usage, argp_usage)
+weak_alias (__option_is_short, _option_is_short)
+weak_alias (__option_is_end, _option_is_end)
+
+#endif
diff --git a/support/argp.h b/support/argp.h
new file mode 100644
index 0000000..886742a
--- /dev/null
+++ b/support/argp.h
@@ -0,0 +1,554 @@
+/* Hierarchial argument parsing, layered over getopt.
+   Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Written by Miles Bader <miles@gnu.ai.mit.edu>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef __ARGP_H__
+#define __ARGP_H__
+
+#include <stdio.h>
+#include <ctype.h>
+#include <getopt.h>
+
+#define __need_error_t
+#include <errno.h>
+
+#ifndef __const
+#define __const const
+#endif
+
+#ifndef __error_t_defined
+typedef int error_t;
+#define __error_t_defined
+#endif
+
+#ifndef __P
+# if (defined (__STDC__) && __STDC__) || defined (__cplusplus)
+#  define __P(args)	args
+# else
+#  define __P(args)	()
+# endif
+#endif
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+/* A description of a particular option.  A pointer to an array of
+   these is passed in the OPTIONS field of an argp structure.  Each option
+   entry can correspond to one long option and/or one short option; more
+   names for the same option can be added by following an entry in an option
+   array with options having the OPTION_ALIAS flag set.  */
+struct argp_option
+{
+  /* The long option name.  For more than one name for the same option, you
+     can use following options with the OPTION_ALIAS flag set.  */
+  __const char *name;
+
+  /* What key is returned for this option.  If > 0 and printable, then it's
+     also accepted as a short option.  */
+  int key;
+
+  /* If non-NULL, this is the name of the argument associated with this
+     option, which is required unless the OPTION_ARG_OPTIONAL flag is set. */
+  __const char *arg;
+
+  /* OPTION_ flags.  */
+  int flags;
+
+  /* The doc string for this option.  If both NAME and KEY are 0, This string
+     will be printed outdented from the normal option column, making it
+     useful as a group header (it will be the first thing printed in its
+     group); in this usage, it's conventional to end the string with a `:'.  */
+  __const char *doc;
+
+  /* The group this option is in.  In a long help message, options are sorted
+     alphabetically within each group, and the groups presented in the order
+     0, 1, 2, ..., n, -m, ..., -2, -1.  Every entry in an options array with
+     if this field 0 will inherit the group number of the previous entry, or
+     zero if it's the first one, unless its a group header (NAME and KEY both
+     0), in which case, the previous entry + 1 is the default.  Automagic
+     options such as --help are put into group -1.  */
+  int group;
+};
+
+/* The argument associated with this option is optional.  */
+#define OPTION_ARG_OPTIONAL	0x1
+
+/* This option isn't displayed in any help messages.  */
+#define OPTION_HIDDEN	       	0x2
+
+/* This option is an alias for the closest previous non-alias option.  This
+   means that it will be displayed in the same help entry, and will inherit
+   fields other than NAME and KEY from the aliased option.  */
+#define OPTION_ALIAS		0x4
+
+/* This option isn't actually an option (and so should be ignored by the
+   actual option parser), but rather an arbitrary piece of documentation that
+   should be displayed in much the same manner as the options.  If this flag
+   is set, then the option NAME field is displayed unmodified (e.g., no `--'
+   prefix is added) at the left-margin (where a *short* option would normally
+   be displayed), and the documentation string in the normal place.  For
+   purposes of sorting, any leading whitespace and puncuation is ignored,
+   except that if the first non-whitespace character is not `-', this entry
+   is displayed after all options (and OPTION_DOC entries with a leading `-')
+   in the same group.  */
+#define OPTION_DOC		0x8
+
+/* This option shouldn't be included in `long' usage messages (but is still
+   included in help messages).  This is mainly intended for options that are
+   completely documented in an argp's ARGS_DOC field, in which case including
+   the option in the generic usage list would be redundant.  For instance,
+   if ARGS_DOC is "FOO BAR\n-x BLAH", and the `-x' option's purpose is to
+   distinguish these two cases, -x should probably be marked
+   OPTION_NO_USAGE.  */
+#define OPTION_NO_USAGE		0x10
+
+struct argp;			/* fwd declare this type */
+struct argp_state;		/* " */
+struct argp_child;		/* " */
+
+/* The type of a pointer to an argp parsing function.  */
+typedef error_t (*argp_parser_t)(int key, char *arg, struct argp_state *state);
+
+/* What to return for unrecognized keys.  For special ARGP_KEY_ keys, such
+   returns will simply be ignored.  For user keys, this error will be turned
+   into EINVAL (if the call to argp_parse is such that errors are propagated
+   back to the user instead of exiting); returning EINVAL itself would result
+   in an immediate stop to parsing in *all* cases.  */
+#define ARGP_ERR_UNKNOWN	E2BIG /* Hurd should never need E2BIG.  XXX */
+
+/* Special values for the KEY argument to an argument parsing function.
+   ARGP_ERR_UNKNOWN should be returned if they aren't understood.
+
+   The sequence of keys to a parsing function is either (where each
+   uppercased word should be prefixed by `ARGP_KEY_' and opt is a user key):
+
+       INIT opt... NO_ARGS END SUCCESS  -- No non-option arguments at all
+   or  INIT (opt | ARG)... END SUCCESS  -- All non-option args parsed
+   or  INIT (opt | ARG)... SUCCESS      -- Some non-option arg unrecognized
+
+   The third case is where every parser returned ARGP_KEY_UNKNOWN for an
+   argument, in which case parsing stops at that argument (returning the
+   unparsed arguments to the caller of argp_parse if requested, or stopping
+   with an error message if not).
+
+   If an error occurs (either detected by argp, or because the parsing
+   function returned an error value), then the parser is called with
+   ARGP_KEY_ERROR, and no further calls are made.  */
+
+/* This is not an option at all, but rather a command line argument.  If a
+   parser receiving this key returns success, the fact is recorded, and the
+   ARGP_KEY_NO_ARGS case won't be used.  HOWEVER, if while processing the
+   argument, a parser function decrements the NEXT field of the state it's
+   passed, the option won't be considered processed; this is to allow you to
+   actually modify the argument (perhaps into an option), and have it
+   processed again.  */
+#define ARGP_KEY_ARG		0
+/* There are no more command line arguments at all.  */
+#define ARGP_KEY_END		0x1000001
+/* Because it's common to want to do some special processing if there aren't
+   any non-option args, user parsers are called with this key if they didn't
+   successfully process any non-option arguments.  Called just before
+   ARGP_KEY_END (where more general validity checks on previously parsed
+   arguments can take place).  */
+#define ARGP_KEY_NO_ARGS	0x1000002
+/* Passed in before any parsing is done.  Afterwards, the values of each
+   element of the CHILD_INPUT field, if any, in the state structure is
+   copied to each child's state to be the initial value of the INPUT field.  */
+#define ARGP_KEY_INIT		0x1000003
+/* Passed in when parsing has successfully been completed (even if there are
+   still arguments remaining).  */
+#define ARGP_KEY_SUCCESS	0x1000004
+/* Passed in if an error occurs (in which case a call with ARGP_KEY_SUCCESS is
+   never made, so any cleanup must be done here).  */
+#define ARGP_KEY_ERROR		0x1000005
+
+/* An argp structure contains a set of options declarations, a function to
+   deal with parsing one, documentation string, a possible vector of child
+   argp's, and perhaps a function to filter help output.  When actually
+   parsing options, getopt is called with the union of all the argp
+   structures chained together through their CHILD pointers, with conflicts
+   being resolved in favor of the first occurance in the chain.  */
+struct argp
+{
+  /* An array of argp_option structures, terminated by an entry with both
+     NAME and KEY having a value of 0.  */
+  __const struct argp_option *options;
+
+  /* What to do with an option from this structure.  KEY is the key
+     associated with the option, and ARG is any associated argument (NULL if
+     none was supplied).  If KEY isn't understood, ARGP_ERR_UNKNOWN should be
+     returned.  If a non-zero, non-ARGP_ERR_UNKNOWN value is returned, then
+     parsing is stopped immediately, and that value is returned from
+     argp_parse().  For special (non-user-supplied) values of KEY, see the
+     ARGP_KEY_ definitions below.  */
+  argp_parser_t parser;
+
+  /* A string describing what other arguments are wanted by this program.  It
+     is only used by argp_usage to print the `Usage:' message.  If it
+     contains newlines, the strings separated by them are considered
+     alternative usage patterns, and printed on separate lines (lines after
+     the first are prefix by `  or: ' instead of `Usage:').  */
+  __const char *args_doc;
+
+  /* If non-NULL, a string containing extra text to be printed before and
+     after the options in a long help message (separated by a vertical tab
+     `\v' character).  */
+  __const char *doc;
+
+  /* A vector of argp_children structures, terminated by a member with a 0
+     argp field, pointing to child argps should be parsed with this one.  Any
+     conflicts are resolved in favor of this argp, or early argps in the
+     CHILDREN list.  This field is useful if you use libraries that supply
+     their own argp structure, which you want to use in conjunction with your
+     own.  */
+  __const struct argp_child *children;
+
+  /* If non-zero, this should be a function to filter the output of help
+     messages.  KEY is either a key from an option, in which case TEXT is
+     that option's help text, or a special key from the ARGP_KEY_HELP_
+     defines, below, describing which other help text TEXT is.  The function
+     should return either TEXT, if it should be used as-is, a replacement
+     string, which should be malloced, and will be freed by argp, or NULL,
+     meaning `print nothing'.  The value for TEXT is *after* any translation
+     has been done, so if any of the replacement text also needs translation,
+     that should be done by the filter function.  INPUT is either the input
+     supplied to argp_parse, or NULL, if argp_help was called directly.  */
+  char *(*help_filter)(int __key, __const char *__text, void *__input);
+};
+
+/* Possible KEY arguments to a help filter function.  */
+#define ARGP_KEY_HELP_PRE_DOC	0x2000001 /* Help text preceeding options. */
+#define ARGP_KEY_HELP_POST_DOC	0x2000002 /* Help text following options. */
+#define ARGP_KEY_HELP_HEADER	0x2000003 /* Option header string. */
+#define ARGP_KEY_HELP_EXTRA	0x2000004 /* After all other documentation;
+					     TEXT is NULL for this key.  */
+/* Explanatory note emitted when duplicate option arguments have been
+   suppressed.  */
+#define ARGP_KEY_HELP_DUP_ARGS_NOTE 0x2000005
+#define ARGP_KEY_HELP_ARGS_DOC	0x2000006 /* Argument doc string.  */
+
+/* When an argp has a non-zero CHILDREN field, it should point to a vector of
+   argp_child structures, each of which describes a subsidiary argp.  */
+struct argp_child
+{
+  /* The child parser.  */
+  __const struct argp *argp;
+
+  /* Flags for this child.  */
+  int flags;
+
+  /* If non-zero, an optional header to be printed in help output before the
+     child options.  As a side-effect, a non-zero value forces the child
+     options to be grouped together; to achieve this effect without actually
+     printing a header string, use a value of "".  */
+  __const char *header;
+
+  /* Where to group the child options relative to the other (`consolidated')
+     options in the parent argp; the values are the same as the GROUP field
+     in argp_option structs, but all child-groupings follow parent options at
+     a particular group level.  If both this field and HEADER are zero, then
+     they aren't grouped at all, but rather merged with the parent options
+     (merging the child's grouping levels with the parents).  */
+  int group;
+};
+
+/* Parsing state.  This is provided to parsing functions called by argp,
+   which may examine and, as noted, modify fields.  */
+struct argp_state
+{
+  /* The top level ARGP being parsed.  */
+  __const struct argp *root_argp;
+
+  /* The argument vector being parsed.  May be modified.  */
+  int argc;
+  char **argv;
+
+  /* The index in ARGV of the next arg that to be parsed.  May be modified. */
+  int next;
+
+  /* The flags supplied to argp_parse.  May be modified.  */
+  unsigned flags;
+
+  /* While calling a parsing function with a key of ARGP_KEY_ARG, this is the
+     number of the current arg, starting at zero, and incremented after each
+     such call returns.  At all other times, this is the number of such
+     arguments that have been processed.  */
+  unsigned arg_num;
+
+  /* If non-zero, the index in ARGV of the first argument following a special
+     `--' argument (which prevents anything following being interpreted as an
+     option).  Only set once argument parsing has proceeded past this point. */
+  int quoted;
+
+  /* An arbitrary pointer passed in from the user.  */
+  void *input;
+  /* Values to pass to child parsers.  This vector will be the same length as
+     the number of children for the current parser.  */
+  void **child_inputs;
+
+  /* For the parser's use.  Initialized to 0.  */
+  void *hook;
+
+  /* The name used when printing messages.  This is initialized to ARGV[0],
+     or PROGRAM_INVOCATION_NAME if that is unavailable.  */
+  char *name;
+
+  /* Streams used when argp prints something.  */
+  FILE *err_stream;		/* For errors; initialized to stderr. */
+  FILE *out_stream;		/* For information; initialized to stdout. */
+
+  void *pstate;			/* Private, for use by argp.  */
+};
+
+/* Flags for argp_parse (note that the defaults are those that are
+   convenient for program command line parsing): */
+
+/* Don't ignore the first element of ARGV.  Normally (and always unless
+   ARGP_NO_ERRS is set) the first element of the argument vector is
+   skipped for option parsing purposes, as it corresponds to the program name
+   in a command line.  */
+#define ARGP_PARSE_ARGV0  0x01
+
+/* Don't print error messages for unknown options to stderr; unless this flag
+   is set, ARGP_PARSE_ARGV0 is ignored, as ARGV[0] is used as the program
+   name in the error messages.  This flag implies ARGP_NO_EXIT (on the
+   assumption that silent exiting upon errors is bad behaviour).  */
+#define ARGP_NO_ERRS	0x02
+
+/* Don't parse any non-option args.  Normally non-option args are parsed by
+   calling the parse functions with a key of ARGP_KEY_ARG, and the actual arg
+   as the value.  Since it's impossible to know which parse function wants to
+   handle it, each one is called in turn, until one returns 0 or an error
+   other than ARGP_ERR_UNKNOWN; if an argument is handled by no one, the
+   argp_parse returns prematurely (but with a return value of 0).  If all
+   args have been parsed without error, all parsing functions are called one
+   last time with a key of ARGP_KEY_END.  This flag needn't normally be set,
+   as the normal behavior is to stop parsing as soon as some argument can't
+   be handled.  */
+#define ARGP_NO_ARGS	0x04
+
+/* Parse options and arguments in the same order they occur on the command
+   line -- normally they're rearranged so that all options come first. */
+#define ARGP_IN_ORDER	0x08
+
+/* Don't provide the standard long option --help, which causes usage and
+      option help information to be output to stdout, and exit (0) called. */
+#define ARGP_NO_HELP	0x10
+
+/* Don't exit on errors (they may still result in error messages).  */
+#define ARGP_NO_EXIT	0x20
+
+/* Use the gnu getopt `long-only' rules for parsing arguments.  */
+#define ARGP_LONG_ONLY	0x40
+
+/* Turns off any message-printing/exiting options.  */
+#define ARGP_SILENT    (ARGP_NO_EXIT | ARGP_NO_ERRS | ARGP_NO_HELP)
+
+/* Parse the options strings in ARGC & ARGV according to the options in ARGP.
+   FLAGS is one of the ARGP_ flags above.  If ARG_INDEX is non-NULL, the
+   index in ARGV of the first unparsed option is returned in it.  If an
+   unknown option is present, ARGP_ERR_UNKNOWN is returned; if some parser
+   routine returned a non-zero value, it is returned; otherwise 0 is
+   returned.  This function may also call exit unless the ARGP_NO_HELP flag
+   is set.  INPUT is a pointer to a value to be passed in to the parser.  */
+extern error_t argp_parse __P ((__const struct argp *__argp,
+				int __argc, char **__argv, unsigned __flags,
+				int *__arg_index, void *__input));
+extern error_t __argp_parse __P ((__const struct argp *__argp,
+				  int __argc, char **__argv, unsigned __flags,
+				  int *__arg_index, void *__input));
+
+/* Global variables.  */
+
+/* If defined or set by the user program to a non-zero value, then a default
+   option --version is added (unless the ARGP_NO_HELP flag is used), which
+   will print this string followed by a newline and exit (unless the
+   ARGP_NO_EXIT flag is used).  Overridden by ARGP_PROGRAM_VERSION_HOOK.  */
+extern __const char *argp_program_version;
+
+/* If defined or set by the user program to a non-zero value, then a default
+   option --version is added (unless the ARGP_NO_HELP flag is used), which
+   calls this function with a stream to print the version to and a pointer to
+   the current parsing state, and then exits (unless the ARGP_NO_EXIT flag is
+   used).  This variable takes precedent over ARGP_PROGRAM_VERSION.  */
+extern void (*argp_program_version_hook) __P ((FILE *__stream,
+					       struct argp_state *__state));
+
+/* If defined or set by the user program, it should point to string that is
+   the bug-reporting address for the program.  It will be printed by
+   argp_help if the ARGP_HELP_BUG_ADDR flag is set (as it is by various
+   standard help messages), embedded in a sentence that says something like
+   `Report bugs to ADDR.'.  */
+__const extern char *argp_program_bug_address;
+
+/* The exit status that argp will use when exiting due to a parsing error.
+   If not defined or set by the user program, this defaults to EX_USAGE from
+   <sysexits.h>.  */
+extern error_t argp_err_exit_status;
+
+/* Flags for argp_help.  */
+#define ARGP_HELP_USAGE		0x01 /* a Usage: message. */
+#define ARGP_HELP_SHORT_USAGE	0x02 /*  " but don't actually print options. */
+#define ARGP_HELP_SEE		0x04 /* a `Try ... for more help' message. */
+#define ARGP_HELP_LONG		0x08 /* a long help message. */
+#define ARGP_HELP_PRE_DOC	0x10 /* doc string preceding long help.  */
+#define ARGP_HELP_POST_DOC	0x20 /* doc string following long help.  */
+#define ARGP_HELP_DOC		(ARGP_HELP_PRE_DOC | ARGP_HELP_POST_DOC)
+#define ARGP_HELP_BUG_ADDR	0x40 /* bug report address */
+#define ARGP_HELP_LONG_ONLY	0x80 /* modify output appropriately to
+					reflect ARGP_LONG_ONLY mode.  */
+
+/* These ARGP_HELP flags are only understood by argp_state_help.  */
+#define ARGP_HELP_EXIT_ERR	0x100 /* Call exit(1) instead of returning.  */
+#define ARGP_HELP_EXIT_OK	0x200 /* Call exit(0) instead of returning.  */
+
+/* The standard thing to do after a program command line parsing error, if an
+   error message has already been printed.  */
+#define ARGP_HELP_STD_ERR \
+  (ARGP_HELP_SEE | ARGP_HELP_EXIT_ERR)
+/* The standard thing to do after a program command line parsing error, if no
+   more specific error message has been printed.  */
+#define ARGP_HELP_STD_USAGE \
+  (ARGP_HELP_SHORT_USAGE | ARGP_HELP_SEE | ARGP_HELP_EXIT_ERR)
+/* The standard thing to do in response to a --help option.  */
+#define ARGP_HELP_STD_HELP \
+  (ARGP_HELP_SHORT_USAGE | ARGP_HELP_LONG | ARGP_HELP_EXIT_OK \
+   | ARGP_HELP_DOC | ARGP_HELP_BUG_ADDR)
+
+/* Output a usage message for ARGP to STREAM.  FLAGS are from the set
+   ARGP_HELP_*.  */
+extern void argp_help __P ((__const struct argp *__argp, FILE *__stream,
+			    unsigned __flags, char *__name));
+extern void __argp_help __P ((__const struct argp *__argp, FILE *__stream,
+			      unsigned __flags, char *__name));
+
+/* The following routines are intended to be called from within an argp
+   parsing routine (thus taking an argp_state structure as the first
+   argument).  They may or may not print an error message and exit, depending
+   on the flags in STATE -- in any case, the caller should be prepared for
+   them *not* to exit, and should return an appropiate error after calling
+   them.  [argp_usage & argp_error should probably be called argp_state_...,
+   but they're used often enough that they should be short]  */
+
+/* Output, if appropriate, a usage message for STATE to STREAM.  FLAGS are
+   from the set ARGP_HELP_*.  */
+extern void argp_state_help __P ((__const struct argp_state *__state,
+				  FILE *__stream, unsigned __flags));
+extern void __argp_state_help __P ((__const struct argp_state *__state,
+				    FILE *__stream, unsigned __flags));
+
+/* Possibly output the standard usage message for ARGP to stderr and exit.  */
+extern void argp_usage __P ((__const struct argp_state *__state));
+extern void __argp_usage __P ((__const struct argp_state *__state));
+
+/* If appropriate, print the printf string FMT and following args, preceded
+   by the program name and `:', to stderr, and followed by a `Try ... --help'
+   message, then exit (1).  */
+extern void argp_error __P ((__const struct argp_state *__state,
+			     __const char *__fmt, ...))
+     __attribute__ ((__format__ (__printf__, 2, 3)));
+extern void __argp_error __P ((__const struct argp_state *__state,
+			       __const char *__fmt, ...))
+     __attribute__ ((__format__ (__printf__, 2, 3)));
+
+/* Similar to the standard gnu error-reporting function error(), but will
+   respect the ARGP_NO_EXIT and ARGP_NO_ERRS flags in STATE, and will print
+   to STATE->err_stream.  This is useful for argument parsing code that is
+   shared between program startup (when exiting is desired) and runtime
+   option parsing (when typically an error code is returned instead).  The
+   difference between this function and argp_error is that the latter is for
+   *parsing errors*, and the former is for other problems that occur during
+   parsing but don't reflect a (syntactic) problem with the input.  */
+extern void argp_failure __P ((__const struct argp_state *__state,
+			       int __status, int __errnum,
+			       __const char *__fmt, ...))
+     __attribute__ ((__format__ (__printf__, 4, 5)));
+extern void __argp_failure __P ((__const struct argp_state *__state,
+				 int __status, int __errnum,
+				 __const char *__fmt, ...))
+     __attribute__ ((__format__ (__printf__, 4, 5)));
+
+/* Returns true if the option OPT is a valid short option.  */
+extern int _option_is_short __P ((__const struct argp_option *__opt));
+extern int __option_is_short __P ((__const struct argp_option *__opt));
+
+/* Returns true if the option OPT is in fact the last (unused) entry in an
+   options array.  */
+extern int _option_is_end __P ((__const struct argp_option *__opt));
+extern int __option_is_end __P ((__const struct argp_option *__opt));
+
+/* Return the input field for ARGP in the parser corresponding to STATE; used
+   by the help routines.  */
+extern void *_argp_input __P ((__const struct argp *argp,
+			       __const struct argp_state *state));
+extern void *__argp_input __P ((__const struct argp *argp,
+				__const struct argp_state *state));
+
+#ifdef __OPTIMIZE__
+
+#if !_LIBC
+# define __argp_usage argp_usage
+# define __argp_state_help argp_state_help
+# define __option_is_short _option_is_short
+# define __option_is_end _option_is_end
+#endif
+
+#ifndef ARGP_EI
+# define ARGP_EI extern inline
+#endif
+
+ARGP_EI void
+__argp_usage (__const struct argp_state *__state)
+{
+  __argp_state_help (__state, stderr, ARGP_HELP_STD_USAGE);
+}
+
+ARGP_EI int
+__option_is_short (__const struct argp_option *__opt)
+{
+  if (__opt->flags & OPTION_DOC)
+    return 0;
+  else
+    {
+      int __key = __opt->key;
+      return __key > 0 && isprint (__key);
+    }
+}
+
+ARGP_EI int
+__option_is_end (__const struct argp_option *__opt)
+{
+  return !__opt->key && !__opt->name && !__opt->doc && !__opt->group;
+}
+
+#if !_LIBC
+# undef __argp_usage
+# undef __argp_state_help
+# undef __option_is_short
+# undef __option_is_end
+#endif
+
+#endif /* __OPTIMIZE__ */
+
+#ifdef  __cplusplus
+}
+#endif
+
+#endif /* __ARGP_H__ */
diff --git a/support/getopt.c b/support/getopt.c
new file mode 100644
index 0000000..3199925
--- /dev/null
+++ b/support/getopt.c
@@ -0,0 +1,1041 @@
+/* Getopt for GNU.
+   NOTE: getopt is now part of the C library, so if you don't know what
+   "Keep this file name-space clean" means, talk to roland@gnu.ai.mit.edu
+   before changing it!
+
+   Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97
+   	Free Software Foundation, Inc.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
+   Ditto for AIX 3.2 and <stdlib.h>.  */
+#ifndef _NO_PROTO
+#define _NO_PROTO
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#if !defined (__STDC__) || !__STDC__
+/* This is a separate conditional since some stdc systems
+   reject `defined (const)'.  */
+#ifndef const
+#define const
+#endif
+#endif
+
+#include <stdio.h>
+
+/* Comment out all this code if we are using the GNU C Library, and are not
+   actually compiling the library itself.  This code is part of the GNU C
+   Library, but also included in many other GNU distributions.  Compiling
+   and linking in this code is a waste when using the GNU C library
+   (especially if it is a shared library).  Rather than having every GNU
+   program understand `configure --with-gnu-libc' and omit the object files,
+   it is simpler to just do this in the source for each such file.  */
+
+#define GETOPT_INTERFACE_VERSION 2
+#if !defined (_LIBC) && defined (__GLIBC__) && __GLIBC__ >= 2
+#include <gnu-versions.h>
+#if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
+#define ELIDE_CODE
+#endif
+#endif
+
+#ifndef ELIDE_CODE
+
+
+/* This needs to come after some library #include
+   to get __GNU_LIBRARY__ defined.  */
+#ifdef	__GNU_LIBRARY__
+/* Don't include stdlib.h for non-GNU C libraries because some of them
+   contain conflicting prototypes for getopt.  */
+#include <stdlib.h>
+#include <unistd.h>
+#endif	/* GNU C library.  */
+
+#ifdef VMS
+#include <unixlib.h>
+#if HAVE_STRING_H - 0
+#include <string.h>
+#endif
+#endif
+
+#ifndef _
+/* This is for other GNU distributions with internationalized messages.
+   When compiling libc, the _ macro is predefined.  */
+#ifdef HAVE_LIBINTL_H
+# include <libintl.h>
+# define _(msgid)	gettext (msgid)
+#else
+# define _(msgid)	(msgid)
+#endif
+#endif
+
+/* This version of `getopt' appears to the caller like standard Unix `getopt'
+   but it behaves differently for the user, since it allows the user
+   to intersperse the options with the other arguments.
+
+   As `getopt' works, it permutes the elements of ARGV so that,
+   when it is done, all the options precede everything else.  Thus
+   all application programs are extended to handle flexible argument order.
+
+   Setting the environment variable POSIXLY_CORRECT disables permutation.
+   Then the behavior is completely standard.
+
+   GNU application programs can use a third alternative mode in which
+   they can distinguish the relative order of options and other arguments.  */
+
+#include "getopt.h"
+
+/* For communication from `getopt' to the caller.
+   When `getopt' finds an option that takes an argument,
+   the argument value is returned here.
+   Also, when `ordering' is RETURN_IN_ORDER,
+   each non-option ARGV-element is returned here.  */
+
+char *optarg = NULL;
+
+/* Index in ARGV of the next element to be scanned.
+   This is used for communication to and from the caller
+   and for communication between successive calls to `getopt'.
+
+   On entry to `getopt', zero means this is the first call; initialize.
+
+   When `getopt' returns -1, this is the index of the first of the
+   non-option elements that the caller should itself scan.
+
+   Otherwise, `optind' communicates from one call to the next
+   how much of ARGV has been scanned so far.  */
+
+/* 1003.2 says this must be 1 before any call.  */
+int optind = 1;
+
+/* Formerly, initialization of getopt depended on optind==0, which
+   causes problems with re-calling getopt as programs generally don't
+   know that. */
+
+int __getopt_initialized = 0;
+
+/* The next char to be scanned in the option-element
+   in which the last option character we returned was found.
+   This allows us to pick up the scan where we left off.
+
+   If this is zero, or a null string, it means resume the scan
+   by advancing to the next ARGV-element.  */
+
+static char *nextchar;
+
+/* Callers store zero here to inhibit the error message
+   for unrecognized options.  */
+
+int opterr = 1;
+
+/* Set to an option character which was unrecognized.
+   This must be initialized on some systems to avoid linking in the
+   system's own getopt implementation.  */
+
+int optopt = '?';
+
+/* Describe how to deal with options that follow non-option ARGV-elements.
+
+   If the caller did not specify anything,
+   the default is REQUIRE_ORDER if the environment variable
+   POSIXLY_CORRECT is defined, PERMUTE otherwise.
+
+   REQUIRE_ORDER means don't recognize them as options;
+   stop option processing when the first non-option is seen.
+   This is what Unix does.
+   This mode of operation is selected by either setting the environment
+   variable POSIXLY_CORRECT, or using `+' as the first character
+   of the list of option characters.
+
+   PERMUTE is the default.  We permute the contents of ARGV as we scan,
+   so that eventually all the non-options are at the end.  This allows options
+   to be given in any order, even with programs that were not written to
+   expect this.
+
+   RETURN_IN_ORDER is an option available to programs that were written
+   to expect options and other ARGV-elements in any order and that care about
+   the ordering of the two.  We describe each non-option ARGV-element
+   as if it were the argument of an option with character code 1.
+   Using `-' as the first character of the list of option characters
+   selects this mode of operation.
+
+   The special argument `--' forces an end of option-scanning regardless
+   of the value of `ordering'.  In the case of RETURN_IN_ORDER, only
+   `--' can cause `getopt' to return -1 with `optind' != ARGC.  */
+
+static enum
+{
+  REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
+} ordering;
+
+/* Value of POSIXLY_CORRECT environment variable.  */
+static char *posixly_correct;
+
+#ifdef	__GNU_LIBRARY__
+/* We want to avoid inclusion of string.h with non-GNU libraries
+   because there are many ways it can cause trouble.
+   On some systems, it contains special magic macros that don't work
+   in GCC.  */
+#include <string.h>
+#define	my_index	strchr
+#else
+
+/* Avoid depending on library functions or files
+   whose names are inconsistent.  */
+
+char *getenv ();
+
+static char *
+my_index (str, chr)
+     const char *str;
+     int chr;
+{
+  while (*str)
+    {
+      if (*str == chr)
+	return (char *) str;
+      str++;
+    }
+  return 0;
+}
+
+/* If using GCC, we can safely declare strlen this way.
+   If not using GCC, it is ok not to declare it.  */
+#ifdef __GNUC__
+/* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h.
+   That was relevant to code that was here before.  */
+#if !defined (__STDC__) || !__STDC__
+/* gcc with -traditional declares the built-in strlen to return int,
+   and has done so at least since version 2.4.5. -- rms.  */
+extern int strlen (const char *);
+#endif /* not __STDC__ */
+#endif /* __GNUC__ */
+
+#endif /* not __GNU_LIBRARY__ */
+
+/* Handle permutation of arguments.  */
+
+/* Describe the part of ARGV that contains non-options that have
+   been skipped.  `first_nonopt' is the index in ARGV of the first of them;
+   `last_nonopt' is the index after the last of them.  */
+
+static int first_nonopt;
+static int last_nonopt;
+
+#ifdef _LIBC
+/* Bash 2.0 gives us an environment variable containing flags
+   indicating ARGV elements that should not be considered arguments.  */
+
+/* Defined in getopt_init.c  */
+extern char *__getopt_nonoption_flags;
+
+static int nonoption_flags_max_len;
+static int nonoption_flags_len;
+
+static int original_argc;
+static char *const *original_argv;
+
+/* Make sure the environment variable bash 2.0 puts in the environment
+   is valid for the getopt call we must make sure that the ARGV passed
+   to getopt is that one passed to the process.  */
+static void
+__attribute__ ((unused))
+store_args_and_env (int argc, char *const *argv)
+{
+  /* XXX This is no good solution.  We should rather copy the args so
+     that we can compare them later.  But we must not use malloc(3).  */
+  original_argc = argc;
+  original_argv = argv;
+}
+# ifdef text_set_element
+text_set_element (__libc_subinit, store_args_and_env);
+# endif /* text_set_element */
+
+# define SWAP_FLAGS(ch1, ch2) \
+  if (nonoption_flags_len > 0)						      \
+    {									      \
+      char __tmp = __getopt_nonoption_flags[ch1];			      \
+      __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2];	      \
+      __getopt_nonoption_flags[ch2] = __tmp;				      \
+    }
+#else	/* !_LIBC */
+# define SWAP_FLAGS(ch1, ch2)
+#endif	/* _LIBC */
+
+/* Exchange two adjacent subsequences of ARGV.
+   One subsequence is elements [first_nonopt,last_nonopt)
+   which contains all the non-options that have been skipped so far.
+   The other is elements [last_nonopt,optind), which contains all
+   the options processed since those non-options were skipped.
+
+   `first_nonopt' and `last_nonopt' are relocated so that they describe
+   the new indices of the non-options in ARGV after they are moved.  */
+
+#if defined (__STDC__) && __STDC__
+static void exchange (char **);
+#endif
+
+static void
+exchange (argv)
+     char **argv;
+{
+  int bottom = first_nonopt;
+  int middle = last_nonopt;
+  int top = optind;
+  char *tem;
+
+  /* Exchange the shorter segment with the far end of the longer segment.
+     That puts the shorter segment into the right place.
+     It leaves the longer segment in the right place overall,
+     but it consists of two parts that need to be swapped next.  */
+
+#ifdef _LIBC
+  /* First make sure the handling of the `__getopt_nonoption_flags'
+     string can work normally.  Our top argument must be in the range
+     of the string.  */
+  if (nonoption_flags_len > 0 && top >= nonoption_flags_max_len)
+    {
+      /* We must extend the array.  The user plays games with us and
+	 presents new arguments.  */
+      char *new_str = malloc (top + 1);
+      if (new_str == NULL)
+	nonoption_flags_len = nonoption_flags_max_len = 0;
+      else
+	{
+	  memset (__mempcpy (new_str, __getopt_nonoption_flags,
+			     nonoption_flags_max_len),
+		  '\0', top + 1 - nonoption_flags_max_len);
+	  nonoption_flags_max_len = top + 1;
+	  __getopt_nonoption_flags = new_str;
+	}
+    }
+#endif
+
+  while (top > middle && middle > bottom)
+    {
+      if (top - middle > middle - bottom)
+	{
+	  /* Bottom segment is the short one.  */
+	  int len = middle - bottom;
+	  register int i;
+
+	  /* Swap it with the top part of the top segment.  */
+	  for (i = 0; i < len; i++)
+	    {
+	      tem = argv[bottom + i];
+	      argv[bottom + i] = argv[top - (middle - bottom) + i];
+	      argv[top - (middle - bottom) + i] = tem;
+	      SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
+	    }
+	  /* Exclude the moved bottom segment from further swapping.  */
+	  top -= len;
+	}
+      else
+	{
+	  /* Top segment is the short one.  */
+	  int len = top - middle;
+	  register int i;
+
+	  /* Swap it with the bottom part of the bottom segment.  */
+	  for (i = 0; i < len; i++)
+	    {
+	      tem = argv[bottom + i];
+	      argv[bottom + i] = argv[middle + i];
+	      argv[middle + i] = tem;
+	      SWAP_FLAGS (bottom + i, middle + i);
+	    }
+	  /* Exclude the moved top segment from further swapping.  */
+	  bottom += len;
+	}
+    }
+
+  /* Update records for the slots the non-options now occupy.  */
+
+  first_nonopt += (optind - last_nonopt);
+  last_nonopt = optind;
+}
+
+/* Initialize the internal data when the first call is made.  */
+
+#if defined (__STDC__) && __STDC__
+static const char *_getopt_initialize (int, char *const *, const char *);
+#endif
+static const char *
+_getopt_initialize (argc, argv, optstring)
+     int argc;
+     char *const *argv;
+     const char *optstring;
+{
+  /* Start processing options with ARGV-element 1 (since ARGV-element 0
+     is the program name); the sequence of previously skipped
+     non-option ARGV-elements is empty.  */
+
+  first_nonopt = last_nonopt = optind;
+
+  nextchar = NULL;
+
+  posixly_correct = getenv ("POSIXLY_CORRECT");
+
+  /* Determine how to handle the ordering of options and nonoptions.  */
+
+  if (optstring[0] == '-')
+    {
+      ordering = RETURN_IN_ORDER;
+      ++optstring;
+    }
+  else if (optstring[0] == '+')
+    {
+      ordering = REQUIRE_ORDER;
+      ++optstring;
+    }
+  else if (posixly_correct != NULL)
+    ordering = REQUIRE_ORDER;
+  else
+    ordering = PERMUTE;
+
+#ifdef _LIBC
+  if (posixly_correct == NULL
+      && argc == original_argc && argv == original_argv)
+    {
+      if (nonoption_flags_max_len == 0)
+	{
+	  if (__getopt_nonoption_flags == NULL
+	      || __getopt_nonoption_flags[0] == '\0')
+	    nonoption_flags_max_len = -1;
+	  else
+	    {
+	      const char *orig_str = __getopt_nonoption_flags;
+	      int len = nonoption_flags_max_len = strlen (orig_str);
+	      if (nonoption_flags_max_len < argc)
+		nonoption_flags_max_len = argc;
+	      __getopt_nonoption_flags =
+		(char *) malloc (nonoption_flags_max_len);
+	      if (__getopt_nonoption_flags == NULL)
+		nonoption_flags_max_len = -1;
+	      else
+		memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
+			'\0', nonoption_flags_max_len - len);
+	    }
+	}
+      nonoption_flags_len = nonoption_flags_max_len;
+    }
+  else
+    nonoption_flags_len = 0;
+#endif
+
+  return optstring;
+}
+
+/* Scan elements of ARGV (whose length is ARGC) for option characters
+   given in OPTSTRING.
+
+   If an element of ARGV starts with '-', and is not exactly "-" or "--",
+   then it is an option element.  The characters of this element
+   (aside from the initial '-') are option characters.  If `getopt'
+   is called repeatedly, it returns successively each of the option characters
+   from each of the option elements.
+
+   If `getopt' finds another option character, it returns that character,
+   updating `optind' and `nextchar' so that the next call to `getopt' can
+   resume the scan with the following option character or ARGV-element.
+
+   If there are no more option characters, `getopt' returns -1.
+   Then `optind' is the index in ARGV of the first ARGV-element
+   that is not an option.  (The ARGV-elements have been permuted
+   so that those that are not options now come last.)
+
+   OPTSTRING is a string containing the legitimate option characters.
+   If an option character is seen that is not listed in OPTSTRING,
+   return '?' after printing an error message.  If you set `opterr' to
+   zero, the error message is suppressed but we still return '?'.
+
+   If a char in OPTSTRING is followed by a colon, that means it wants an arg,
+   so the following text in the same ARGV-element, or the text of the following
+   ARGV-element, is returned in `optarg'.  Two colons mean an option that
+   wants an optional arg; if there is text in the current ARGV-element,
+   it is returned in `optarg', otherwise `optarg' is set to zero.
+
+   If OPTSTRING starts with `-' or `+', it requests different methods of
+   handling the non-option ARGV-elements.
+   See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
+
+   Long-named options begin with `--' instead of `-'.
+   Their names may be abbreviated as long as the abbreviation is unique
+   or is an exact match for some defined option.  If they have an
+   argument, it follows the option name in the same ARGV-element, separated
+   from the option name by a `=', or else the in next ARGV-element.
+   When `getopt' finds a long-named option, it returns 0 if that option's
+   `flag' field is nonzero, the value of the option's `val' field
+   if the `flag' field is zero.
+
+   The elements of ARGV aren't really const, because we permute them.
+   But we pretend they're const in the prototype to be compatible
+   with other systems.
+
+   LONGOPTS is a vector of `struct option' terminated by an
+   element containing a name which is zero.
+
+   LONGIND returns the index in LONGOPT of the long-named option found.
+   It is only valid when a long-named option has been found by the most
+   recent call.
+
+   If LONG_ONLY is nonzero, '-' as well as '--' can introduce
+   long-named options.  */
+
+int
+_getopt_internal (argc, argv, optstring, longopts, longind, long_only)
+     int argc;
+     char *const *argv;
+     const char *optstring;
+     const struct option *longopts;
+     int *longind;
+     int long_only;
+{
+  optarg = NULL;
+
+  if (optind == 0 || !__getopt_initialized)
+    {
+      if (optind == 0)
+	optind = 1;	/* Don't scan ARGV[0], the program name.  */
+      optstring = _getopt_initialize (argc, argv, optstring);
+      __getopt_initialized = 1;
+    }
+
+  /* Test whether ARGV[optind] points to a non-option argument.
+     Either it does not have option syntax, or there is an environment flag
+     from the shell indicating it is not an option.  The later information
+     is only used when the used in the GNU libc.  */
+#ifdef _LIBC
+#define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0'	      \
+		     || (optind < nonoption_flags_len			      \
+			 && __getopt_nonoption_flags[optind] == '1'))
+#else
+#define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')
+#endif
+
+  if (nextchar == NULL || *nextchar == '\0')
+    {
+      /* Advance to the next ARGV-element.  */
+
+      /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
+	 moved back by the user (who may also have changed the arguments).  */
+      if (last_nonopt > optind)
+	last_nonopt = optind;
+      if (first_nonopt > optind)
+	first_nonopt = optind;
+
+      if (ordering == PERMUTE)
+	{
+	  /* If we have just processed some options following some non-options,
+	     exchange them so that the options come first.  */
+
+	  if (first_nonopt != last_nonopt && last_nonopt != optind)
+	    exchange ((char **) argv);
+	  else if (last_nonopt != optind)
+	    first_nonopt = optind;
+
+	  /* Skip any additional non-options
+	     and extend the range of non-options previously skipped.  */
+
+	  while (optind < argc && NONOPTION_P)
+	    optind++;
+	  last_nonopt = optind;
+	}
+
+      /* The special ARGV-element `--' means premature end of options.
+	 Skip it like a null option,
+	 then exchange with previous non-options as if it were an option,
+	 then skip everything else like a non-option.  */
+
+      if (optind != argc && !strcmp (argv[optind], "--"))
+	{
+	  optind++;
+
+	  if (first_nonopt != last_nonopt && last_nonopt != optind)
+	    exchange ((char **) argv);
+	  else if (first_nonopt == last_nonopt)
+	    first_nonopt = optind;
+	  last_nonopt = argc;
+
+	  optind = argc;
+	}
+
+      /* If we have done all the ARGV-elements, stop the scan
+	 and back over any non-options that we skipped and permuted.  */
+
+      if (optind == argc)
+	{
+	  /* Set the next-arg-index to point at the non-options
+	     that we previously skipped, so the caller will digest them.  */
+	  if (first_nonopt != last_nonopt)
+	    optind = first_nonopt;
+	  return -1;
+	}
+
+      /* If we have come to a non-option and did not permute it,
+	 either stop the scan or describe it to the caller and pass it by.  */
+
+      if (NONOPTION_P)
+	{
+	  if (ordering == REQUIRE_ORDER)
+	    return -1;
+	  optarg = argv[optind++];
+	  return 1;
+	}
+
+      /* We have found another option-ARGV-element.
+	 Skip the initial punctuation.  */
+
+      nextchar = (argv[optind] + 1
+		  + (longopts != NULL && argv[optind][1] == '-'));
+    }
+
+  /* Decode the current option-ARGV-element.  */
+
+  /* Check whether the ARGV-element is a long option.
+
+     If long_only and the ARGV-element has the form "-f", where f is
+     a valid short option, don't consider it an abbreviated form of
+     a long option that starts with f.  Otherwise there would be no
+     way to give the -f short option.
+
+     On the other hand, if there's a long option "fubar" and
+     the ARGV-element is "-fu", do consider that an abbreviation of
+     the long option, just like "--fu", and not "-f" with arg "u".
+
+     This distinction seems to be the most useful approach.  */
+
+  if (longopts != NULL
+      && (argv[optind][1] == '-'
+	  || (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1])))))
+    {
+      char *nameend;
+      const struct option *p;
+      const struct option *pfound = NULL;
+      int exact = 0;
+      int ambig = 0;
+      int indfound = -1;
+      int option_index;
+
+      for (nameend = nextchar; *nameend && *nameend != '='; nameend++)
+	/* Do nothing.  */ ;
+
+      /* Test all long options for either exact match
+	 or abbreviated matches.  */
+      for (p = longopts, option_index = 0; p->name; p++, option_index++)
+	if (!strncmp (p->name, nextchar, nameend - nextchar))
+	  {
+	    if ((unsigned int) (nameend - nextchar)
+		== (unsigned int) strlen (p->name))
+	      {
+		/* Exact match found.  */
+		pfound = p;
+		indfound = option_index;
+		exact = 1;
+		break;
+	      }
+	    else if (pfound == NULL)
+	      {
+		/* First nonexact match found.  */
+		pfound = p;
+		indfound = option_index;
+	      }
+	    else
+	      /* Second or later nonexact match found.  */
+	      ambig = 1;
+	  }
+
+      if (ambig && !exact)
+	{
+	  if (opterr)
+	    fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
+		     argv[0], argv[optind]);
+	  nextchar += strlen (nextchar);
+	  optind++;
+	  optopt = 0;
+	  return '?';
+	}
+
+      if (pfound != NULL)
+	{
+	  option_index = indfound;
+	  optind++;
+	  if (*nameend)
+	    {
+	      /* Don't test has_arg with >, because some C compilers don't
+		 allow it to be used on enums.  */
+	      if (pfound->has_arg)
+		optarg = nameend + 1;
+	      else
+		{
+		  if (opterr)
+		   if (argv[optind - 1][1] == '-')
+		    /* --option */
+		    fprintf (stderr,
+		     _("%s: option `--%s' doesn't allow an argument\n"),
+		     argv[0], pfound->name);
+		   else
+		    /* +option or -option */
+		    fprintf (stderr,
+		     _("%s: option `%c%s' doesn't allow an argument\n"),
+		     argv[0], argv[optind - 1][0], pfound->name);
+
+		  nextchar += strlen (nextchar);
+
+		  optopt = pfound->val;
+		  return '?';
+		}
+	    }
+	  else if (pfound->has_arg == 1)
+	    {
+	      if (optind < argc)
+		optarg = argv[optind++];
+	      else
+		{
+		  if (opterr)
+		    fprintf (stderr,
+			   _("%s: option `%s' requires an argument\n"),
+			   argv[0], argv[optind - 1]);
+		  nextchar += strlen (nextchar);
+		  optopt = pfound->val;
+		  return optstring[0] == ':' ? ':' : '?';
+		}
+	    }
+	  nextchar += strlen (nextchar);
+	  if (longind != NULL)
+	    *longind = option_index;
+	  if (pfound->flag)
+	    {
+	      *(pfound->flag) = pfound->val;
+	      return 0;
+	    }
+	  return pfound->val;
+	}
+
+      /* Can't find it as a long option.  If this is not getopt_long_only,
+	 or the option starts with '--' or is not a valid short
+	 option, then it's an error.
+	 Otherwise interpret it as a short option.  */
+      if (!long_only || argv[optind][1] == '-'
+	  || my_index (optstring, *nextchar) == NULL)
+	{
+	  if (opterr)
+	    {
+	      if (argv[optind][1] == '-')
+		/* --option */
+		fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
+			 argv[0], nextchar);
+	      else
+		/* +option or -option */
+		fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
+			 argv[0], argv[optind][0], nextchar);
+	    }
+	  nextchar = (char *) "";
+	  optind++;
+	  optopt = 0;
+	  return '?';
+	}
+    }
+
+  /* Look at and handle the next short option-character.  */
+
+  {
+    char c = *nextchar++;
+    char *temp = my_index (optstring, c);
+
+    /* Increment `optind' when we start to process its last character.  */
+    if (*nextchar == '\0')
+      ++optind;
+
+    if (temp == NULL || c == ':')
+      {
+	if (opterr)
+	  {
+	    if (posixly_correct)
+	      /* 1003.2 specifies the format of this message.  */
+	      fprintf (stderr, _("%s: illegal option -- %c\n"),
+		       argv[0], c);
+	    else
+	      fprintf (stderr, _("%s: invalid option -- %c\n"),
+		       argv[0], c);
+	  }
+	optopt = c;
+	return '?';
+      }
+    /* Convenience. Treat POSIX -W foo same as long option --foo */
+    if (temp[0] == 'W' && temp[1] == ';')
+      {
+	char *nameend;
+	const struct option *p;
+	const struct option *pfound = NULL;
+	int exact = 0;
+	int ambig = 0;
+	int indfound = 0;
+	int option_index;
+
+	/* This is an option that requires an argument.  */
+	if (*nextchar != '\0')
+	  {
+	    optarg = nextchar;
+	    /* If we end this ARGV-element by taking the rest as an arg,
+	       we must advance to the next element now.  */
+	    optind++;
+	  }
+	else if (optind == argc)
+	  {
+	    if (opterr)
+	      {
+		/* 1003.2 specifies the format of this message.  */
+		fprintf (stderr, _("%s: option requires an argument -- %c\n"),
+			 argv[0], c);
+	      }
+	    optopt = c;
+	    if (optstring[0] == ':')
+	      c = ':';
+	    else
+	      c = '?';
+	    return c;
+	  }
+	else
+	  /* We already incremented `optind' once;
+	     increment it again when taking next ARGV-elt as argument.  */
+	  optarg = argv[optind++];
+
+	/* optarg is now the argument, see if it's in the
+	   table of longopts.  */
+
+	for (nextchar = nameend = optarg; *nameend && *nameend != '='; nameend++)
+	  /* Do nothing.  */ ;
+
+	/* Test all long options for either exact match
+	   or abbreviated matches.  */
+	for (p = longopts, option_index = 0; p->name; p++, option_index++)
+	  if (!strncmp (p->name, nextchar, nameend - nextchar))
+	    {
+	      if ((unsigned int) (nameend - nextchar) == strlen (p->name))
+		{
+		  /* Exact match found.  */
+		  pfound = p;
+		  indfound = option_index;
+		  exact = 1;
+		  break;
+		}
+	      else if (pfound == NULL)
+		{
+		  /* First nonexact match found.  */
+		  pfound = p;
+		  indfound = option_index;
+		}
+	      else
+		/* Second or later nonexact match found.  */
+		ambig = 1;
+	    }
+	if (ambig && !exact)
+	  {
+	    if (opterr)
+	      fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
+		       argv[0], argv[optind]);
+	    nextchar += strlen (nextchar);
+	    optind++;
+	    return '?';
+	  }
+	if (pfound != NULL)
+	  {
+	    option_index = indfound;
+	    if (*nameend)
+	      {
+		/* Don't test has_arg with >, because some C compilers don't
+		   allow it to be used on enums.  */
+		if (pfound->has_arg)
+		  optarg = nameend + 1;
+		else
+		  {
+		    if (opterr)
+		      fprintf (stderr, _("\
+%s: option `-W %s' doesn't allow an argument\n"),
+			       argv[0], pfound->name);
+
+		    nextchar += strlen (nextchar);
+		    return '?';
+		  }
+	      }
+	    else if (pfound->has_arg == 1)
+	      {
+		if (optind < argc)
+		  optarg = argv[optind++];
+		else
+		  {
+		    if (opterr)
+		      fprintf (stderr,
+			       _("%s: option `%s' requires an argument\n"),
+			       argv[0], argv[optind - 1]);
+		    nextchar += strlen (nextchar);
+		    return optstring[0] == ':' ? ':' : '?';
+		  }
+	      }
+	    nextchar += strlen (nextchar);
+	    if (longind != NULL)
+	      *longind = option_index;
+	    if (pfound->flag)
+	      {
+		*(pfound->flag) = pfound->val;
+		return 0;
+	      }
+	    return pfound->val;
+	  }
+	  nextchar = NULL;
+	  return 'W';	/* Let the application handle it.   */
+      }
+    if (temp[1] == ':')
+      {
+	if (temp[2] == ':')
+	  {
+	    /* This is an option that accepts an argument optionally.  */
+	    if (*nextchar != '\0')
+	      {
+		optarg = nextchar;
+		optind++;
+	      }
+	    else
+	      optarg = NULL;
+	    nextchar = NULL;
+	  }
+	else
+	  {
+	    /* This is an option that requires an argument.  */
+	    if (*nextchar != '\0')
+	      {
+		optarg = nextchar;
+		/* If we end this ARGV-element by taking the rest as an arg,
+		   we must advance to the next element now.  */
+		optind++;
+	      }
+	    else if (optind == argc)
+	      {
+		if (opterr)
+		  {
+		    /* 1003.2 specifies the format of this message.  */
+		    fprintf (stderr,
+			   _("%s: option requires an argument -- %c\n"),
+			   argv[0], c);
+		  }
+		optopt = c;
+		if (optstring[0] == ':')
+		  c = ':';
+		else
+		  c = '?';
+	      }
+	    else
+	      /* We already incremented `optind' once;
+		 increment it again when taking next ARGV-elt as argument.  */
+	      optarg = argv[optind++];
+	    nextchar = NULL;
+	  }
+      }
+    return c;
+  }
+}
+
+int
+getopt (argc, argv, optstring)
+     int argc;
+     char *const *argv;
+     const char *optstring;
+{
+  return _getopt_internal (argc, argv, optstring,
+			   (const struct option *) 0,
+			   (int *) 0,
+			   0);
+}
+
+#endif	/* Not ELIDE_CODE.  */
+
+#ifdef TEST
+
+/* Compile with -DTEST to make an executable for use in testing
+   the above definition of `getopt'.  */
+
+int
+main (argc, argv)
+     int argc;
+     char **argv;
+{
+  int c;
+  int digit_optind = 0;
+
+  while (1)
+    {
+      int this_option_optind = optind ? optind : 1;
+
+      c = getopt (argc, argv, "abc:d:0123456789");
+      if (c == -1)
+	break;
+
+      switch (c)
+	{
+	case '0':
+	case '1':
+	case '2':
+	case '3':
+	case '4':
+	case '5':
+	case '6':
+	case '7':
+	case '8':
+	case '9':
+	  if (digit_optind != 0 && digit_optind != this_option_optind)
+	    printf ("digits occur in two different argv-elements.\n");
+	  digit_optind = this_option_optind;
+	  printf ("option %c\n", c);
+	  break;
+
+	case 'a':
+	  printf ("option a\n");
+	  break;
+
+	case 'b':
+	  printf ("option b\n");
+	  break;
+
+	case 'c':
+	  printf ("option c with value `%s'\n", optarg);
+	  break;
+
+	case '?':
+	  break;
+
+	default:
+	  printf ("?? getopt returned character code 0%o ??\n", c);
+	}
+    }
+
+  if (optind < argc)
+    {
+      printf ("non-option ARGV-elements: ");
+      while (optind < argc)
+	printf ("%s ", argv[optind++]);
+      printf ("\n");
+    }
+
+  exit (0);
+}
+
+#endif /* TEST */
diff --git a/support/getopt.h b/support/getopt.h
new file mode 100644
index 0000000..68958c1
--- /dev/null
+++ b/support/getopt.h
@@ -0,0 +1,131 @@
+/* Declarations for getopt.
+   Copyright (C) 1989,90,91,92,93,94,96,97 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _GETOPT_H
+#define _GETOPT_H 1
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+/* For communication from `getopt' to the caller.
+   When `getopt' finds an option that takes an argument,
+   the argument value is returned here.
+   Also, when `ordering' is RETURN_IN_ORDER,
+   each non-option ARGV-element is returned here.  */
+
+extern char *optarg;
+
+/* Index in ARGV of the next element to be scanned.
+   This is used for communication to and from the caller
+   and for communication between successive calls to `getopt'.
+
+   On entry to `getopt', zero means this is the first call; initialize.
+
+   When `getopt' returns -1, this is the index of the first of the
+   non-option elements that the caller should itself scan.
+
+   Otherwise, `optind' communicates from one call to the next
+   how much of ARGV has been scanned so far.  */
+
+extern int optind;
+
+/* Callers store zero here to inhibit the error message `getopt' prints
+   for unrecognized options.  */
+
+extern int opterr;
+
+/* Set to an option character which was unrecognized.  */
+
+extern int optopt;
+
+/* Describe the long-named options requested by the application.
+   The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
+   of `struct option' terminated by an element containing a name which is
+   zero.
+
+   The field `has_arg' is:
+   no_argument		(or 0) if the option does not take an argument,
+   required_argument	(or 1) if the option requires an argument,
+   optional_argument 	(or 2) if the option takes an optional argument.
+
+   If the field `flag' is not NULL, it points to a variable that is set
+   to the value given in the field `val' when the option is found, but
+   left unchanged if the option is not found.
+
+   To have a long-named option do something other than set an `int' to
+   a compiled-in constant, such as set a value from `optarg', set the
+   option's `flag' field to zero and its `val' field to a nonzero
+   value (the equivalent single-letter option character, if there is
+   one).  For long options that have a zero `flag' field, `getopt'
+   returns the contents of the `val' field.  */
+
+struct option
+{
+#if defined (__STDC__) && __STDC__
+  const char *name;
+#else
+  char *name;
+#endif
+  /* has_arg can't be an enum because some compilers complain about
+     type mismatches in all the code that assumes it is an int.  */
+  int has_arg;
+  int *flag;
+  int val;
+};
+
+/* Names for the values of the `has_arg' field of `struct option'.  */
+
+#define	no_argument		0
+#define required_argument	1
+#define optional_argument	2
+
+#if defined (__STDC__) && __STDC__
+#ifdef __GNU_LIBRARY__
+/* Many other libraries have conflicting prototypes for getopt, with
+   differences in the consts, in stdlib.h.  To avoid compilation
+   errors, only prototype getopt for the GNU C library.  */
+extern int getopt (int argc, char *const *argv, const char *shortopts);
+#else /* not __GNU_LIBRARY__ */
+extern int getopt ();
+#endif /* __GNU_LIBRARY__ */
+extern int getopt_long (int argc, char *const *argv, const char *shortopts,
+		        const struct option *longopts, int *longind);
+extern int getopt_long_only (int argc, char *const *argv,
+			     const char *shortopts,
+		             const struct option *longopts, int *longind);
+
+/* Internal only.  Users should not call this directly.  */
+extern int _getopt_internal (int argc, char *const *argv,
+			     const char *shortopts,
+		             const struct option *longopts, int *longind,
+			     int long_only);
+#else /* not __STDC__ */
+extern int getopt ();
+extern int getopt_long ();
+extern int getopt_long_only ();
+
+extern int _getopt_internal ();
+#endif /* __STDC__ */
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif /* getopt.h */
diff --git a/support/getopt1.c b/support/getopt1.c
new file mode 100644
index 0000000..4aa8de6
--- /dev/null
+++ b/support/getopt1.c
@@ -0,0 +1,187 @@
+/* getopt_long and getopt_long_only entry points for GNU getopt.
+   Copyright (C) 1987,88,89,90,91,92,93,94,96,97 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "getopt.h"
+
+#if !defined (__STDC__) || !__STDC__
+/* This is a separate conditional since some stdc systems
+   reject `defined (const)'.  */
+#ifndef const
+#define const
+#endif
+#endif
+
+#include <stdio.h>
+
+/* Comment out all this code if we are using the GNU C Library, and are not
+   actually compiling the library itself.  This code is part of the GNU C
+   Library, but also included in many other GNU distributions.  Compiling
+   and linking in this code is a waste when using the GNU C library
+   (especially if it is a shared library).  Rather than having every GNU
+   program understand `configure --with-gnu-libc' and omit the object files,
+   it is simpler to just do this in the source for each such file.  */
+
+#define GETOPT_INTERFACE_VERSION 2
+#if !defined (_LIBC) && defined (__GLIBC__) && __GLIBC__ >= 2
+#include <gnu-versions.h>
+#if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
+#define ELIDE_CODE
+#endif
+#endif
+
+#ifndef ELIDE_CODE
+
+
+/* This needs to come after some library #include
+   to get __GNU_LIBRARY__ defined.  */
+#ifdef __GNU_LIBRARY__
+#include <stdlib.h>
+#endif
+
+#ifndef	NULL
+#define NULL 0
+#endif
+
+int
+getopt_long (argc, argv, options, long_options, opt_index)
+     int argc;
+     char *const *argv;
+     const char *options;
+     const struct option *long_options;
+     int *opt_index;
+{
+  return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
+}
+
+/* Like getopt_long, but '-' as well as '--' can indicate a long option.
+   If an option that starts with '-' (not '--') doesn't match a long option,
+   but does match a short option, it is parsed as a short option
+   instead.  */
+
+int
+getopt_long_only (argc, argv, options, long_options, opt_index)
+     int argc;
+     char *const *argv;
+     const char *options;
+     const struct option *long_options;
+     int *opt_index;
+{
+  return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
+}
+
+
+#endif	/* Not ELIDE_CODE.  */
+
+#ifdef TEST
+
+#include <stdio.h>
+
+int
+main (argc, argv)
+     int argc;
+     char **argv;
+{
+  int c;
+  int digit_optind = 0;
+
+  while (1)
+    {
+      int this_option_optind = optind ? optind : 1;
+      int option_index = 0;
+      static struct option long_options[] =
+      {
+	{"add", 1, 0, 0},
+	{"append", 0, 0, 0},
+	{"delete", 1, 0, 0},
+	{"verbose", 0, 0, 0},
+	{"create", 0, 0, 0},
+	{"file", 1, 0, 0},
+	{0, 0, 0, 0}
+      };
+
+      c = getopt_long (argc, argv, "abc:d:0123456789",
+		       long_options, &option_index);
+      if (c == -1)
+	break;
+
+      switch (c)
+	{
+	case 0:
+	  printf ("option %s", long_options[option_index].name);
+	  if (optarg)
+	    printf (" with arg %s", optarg);
+	  printf ("\n");
+	  break;
+
+	case '0':
+	case '1':
+	case '2':
+	case '3':
+	case '4':
+	case '5':
+	case '6':
+	case '7':
+	case '8':
+	case '9':
+	  if (digit_optind != 0 && digit_optind != this_option_optind)
+	    printf ("digits occur in two different argv-elements.\n");
+	  digit_optind = this_option_optind;
+	  printf ("option %c\n", c);
+	  break;
+
+	case 'a':
+	  printf ("option a\n");
+	  break;
+
+	case 'b':
+	  printf ("option b\n");
+	  break;
+
+	case 'c':
+	  printf ("option c with value `%s'\n", optarg);
+	  break;
+
+	case 'd':
+	  printf ("option d with value `%s'\n", optarg);
+	  break;
+
+	case '?':
+	  break;
+
+	default:
+	  printf ("?? getopt returned character code 0%o ??\n", c);
+	}
+    }
+
+  if (optind < argc)
+    {
+      printf ("non-option ARGV-elements: ");
+      while (optind < argc)
+	printf ("%s ", argv[optind++]);
+      printf ("\n");
+    }
+
+  exit (0);
+}
+
+#endif /* TEST */
diff --git a/support/strcasecmp.c b/support/strcasecmp.c
new file mode 100644
index 0000000..4640372
--- /dev/null
+++ b/support/strcasecmp.c
@@ -0,0 +1,75 @@
+/* Copyright (C) 1991, 1992, 1995, 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <ctype.h>
+#include <string.h>
+
+#ifndef weak_alias
+# define __strcasecmp strcasecmp
+# define TOLOWER(Ch) tolower (Ch)
+#else
+# ifdef USE_IN_EXTENDED_LOCALE_MODEL
+#  define __strcasecmp __strcasecmp_l
+#  define TOLOWER(Ch) __tolower_l ((Ch), loc)
+# else
+#  define TOLOWER(Ch) tolower (Ch)
+# endif
+#endif
+
+#ifdef USE_IN_EXTENDED_LOCALE_MODEL
+# define LOCALE_PARAM , loc
+# define LOCALE_PARAM_DECL __locale_t loc;
+#else
+# define LOCALE_PARAM
+# define LOCALE_PARAM_DECL
+#endif
+
+/* Compare S1 and S2, ignoring case, returning less than, equal to or
+   greater than zero if S1 is lexicographically less than,
+   equal to or greater than S2.  */
+int
+__strcasecmp (s1, s2 LOCALE_PARAM)
+     const char *s1;
+     const char *s2;
+     LOCALE_PARAM_DECL
+{
+  const unsigned char *p1 = (const unsigned char *) s1;
+  const unsigned char *p2 = (const unsigned char *) s2;
+  unsigned char c1, c2;
+
+  if (p1 == p2)
+    return 0;
+
+  do
+    {
+      c1 = TOLOWER (*p1++);
+      c2 = TOLOWER (*p2++);
+      if (c1 == '\0')
+	break;
+    }
+  while (c1 == c2);
+
+  return c1 - c2;
+}
+#ifndef __strcasecmp
+weak_alias (__strcasecmp, strcasecmp)
+#endif
diff --git a/support/strndup.c b/support/strndup.c
new file mode 100644
index 0000000..72635bb
--- /dev/null
+++ b/support/strndup.c
@@ -0,0 +1,36 @@
+/* Copyright (C) 1996 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+char *
+__strndup (const char *s, size_t n)
+{
+  size_t len = strnlen (s, n);
+  char *new = malloc (len + 1);
+
+  if (new == NULL)
+    return NULL;
+
+  new[len] = '\0';
+  return memcpy (new, s, len);
+}
+weak_alias (__strndup, strndup)
diff --git a/support/strtok_r.c b/support/strtok_r.c
new file mode 100644
index 0000000..fb68ad8
--- /dev/null
+++ b/support/strtok_r.c
@@ -0,0 +1,62 @@
+/* Reentrant string tokenizer.  Generic version.
+Copyright (C) 1991, 1996 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <string.h>
+
+
+/* Parse S into tokens separated by characters in DELIM.
+   If S is NULL, the saved pointer in SAVE_PTR is used as
+   the next starting point.  For example:
+	char s[] = "-abc-=-def";
+	char *sp;
+	x = strtok_r(s, "-", &sp);	// x = "abc", sp = "=-def"
+	x = strtok_r(NULL, "-=", &sp);	// x = "def", sp = NULL
+	x = strtok_r(NULL, "=", &sp);	// x = NULL
+		// s = "abc\0-def\0"
+*/
+char *
+strtok_r (s, delim, save_ptr)
+     char *s;
+     const char *delim;
+     char **save_ptr;
+{
+  char *token;
+
+  if (s == NULL)
+    s = *save_ptr;
+
+  /* Scan leading delimiters.  */
+  s += strspn (s, delim);
+  if (*s == '\0')
+    return NULL;
+
+  /* Find the end of the token.  */
+  token = s;
+  s = strpbrk (token, delim);
+  if (s == NULL)
+    /* This token finishes the string.  */
+    *save_ptr = strchr (token, '\0');
+  else
+    {
+      /* Terminate the token and make *SAVE_PTR point past it.  */
+      *s = '\0';
+      *save_ptr = s + 1;
+    }
+  return token;
+}