Testing musl support, disabled by default

Imported multiple utilities from ubase to replace util-linux utils
Only build utilities from util-linux that can't be had elsewhere

Makefile

@@ -84,8 +84,7 @@ $(build)/.skeleton.built: | $(dirs)
 	install -dv -m 1777 $(build)/tmp $(build)/var/tmp
 	[ -h $(build)/var/run ] || ln -sv /run $(build)/var/run
 	[ -h $(build)/var/lock ] || ln -sv /run/lock $(build)/var/lock
-	[ -c $(build)/dev/console ] || su -c "mknod -m 600 $(build)/dev/console c 5 1"
-	[ -c $(build)/dev/null ] || su -c "mknod -m 666 $(build)/dev/null c 1 3"
+	#su -c "mknod -m 600 $(build)/dev/console c 5 1 && mknod -m 666 $(build)/dev/null c 1 3"
 	touch $@
 
 $(plists): $(build)/.built
@@ -135,11 +134,14 @@ remove-toolchain:
 	$(MAKE) -C toolchain remove
 
 clean:
+	$(MAKE) -C world clean
+	$(MAKE) -C toolchain clean
+	rm -rf build/src-*
+	rm -rf build/obj-*
+
+distclean:
 	$(MAKE) -C world clean
 	$(MAKE) -C toolchain clean
 	rm -rf build/*
-	rm -rf build/.built
-	rm -rf build/.skeleton.built
-	rm -rf build/.stripped
 
 .PHONY: clean

distfiles/Makefile

@@ -12,6 +12,7 @@ skarnet = https://skarnet.org/software
 
 distfiles = \
 acl-${acl_version}.tar.gz \
+$(argp-standalone_version).tar.gz \
 attr-${attr_version}.tar.gz \
 autoconf-${autoconf_version}.tar.xz \
 automake-${automake_version}.tar.xz \
@@ -69,6 +70,8 @@ man-pages-${man-pages_version}.tar.xz \
 meson-${meson_version}.tar.gz \
 mpc-${mpc_version}.tar.gz \
 mpfr-${mpfr_version}.tar.xz \
+musl-$(musl_version).tar.gz \
+musl-fts-$(musl-fts_version).tar.gz \
 ncurses-${ncurses_version}.tar.gz \
 netbsd-curses-${netbsd-curses_version}.tar.xz \
 ninja-${ninja_version}.tar.gz \
@@ -111,6 +114,11 @@ acl: acl-${acl_version}.tar.gz
 acl-${acl_version}.tar.gz:
 	wget -c ${savannah}/acl/$@
 
+argp-standalone: $(argp-standalone_version).tar.gz
+
+$(argp-standalone_version).tar.gz:
+	wget -c $(github)/ericonr/argp-standalone/archive/$@
+
 attr: attr-${attr_version}.tar.gz
 
 attr-${attr_version}.tar.gz:
@@ -406,6 +414,17 @@ mpfr: mpfr-${mpfr_version}.tar.xz
 mpfr-${mpfr_version}.tar.xz:
 	wget -c http://www.mpfr.org/mpfr-${mpfr_version}/$@
 
+musl: musl-$(musl_version).tar.gz
+
+musl-$(musl_version).tar.gz:
+	wget -c http://musl.libc.org/releases/$@
+
+musl-fts: musl-fts-$(musl-fts_version).tar.gz
+
+musl-fts-$(musl-fts_version).tar.gz:
+	wget -c $(github)/void-linux/musl-fts/archive/v$(musl-fts_version).tar.gz \
+		-O $@
+
 ncurses: ncurses-${ncurses_version}.tar.gz
 
 ncurses-${ncurses_version}.tar.gz:

include/mk/src-config.mk

@@ -15,7 +15,7 @@ ifndef colormk
 include hhl.colors.mk
 endif
 
-ifeq ($(filter armv7l aarch64, $(arch)), $(arch))
+ifeq ($(filter armv6 armv7l aarch64, $(arch)), $(arch))
  tgt           = $(arch)-unknown-linux-gnueabi
 else
  tgt           = $(arch)-unknown-linux-gnu
@@ -26,6 +26,12 @@ ifeq ($(filter armv7l aarch64, $(bld_arch)), $(bld_arch))
 else
  bld           = $(bld_arch)-unknown-linux-gnu
 endif
+#ifeq ($(filter armv6 armv7l aarch64, $(arch)), $(arch))
+#tgt           = $(arch)-hitchhiker-linux-musleabihf
+#else
+#tgt           = $(arch)-hitchhiker-linux-musl
+#endif
+#bld           = $(shell gcc -dumpmachine)
 
 exec_prefix   ?= ${DESTDIR}${install_prefix}
 bindir        ?= ${exec_prefix}/bin

include/mk/targets.mk

@@ -72,6 +72,14 @@ $(objdir):
 	install -d $@
 endif
 
+ifeq ($(use_configure),1)
+show-config_opts:
+	$(info $(grn)$(config_opts)$(reset))
+else
+show-config_opts:
+	$(info $(red)Package does not use configure$(reset))
+endif
+
 $(distlocal):
 	$(info $(grn)=== Fetching $(distfile) ===$(reset))
 	$(MAKE) -C $(distdir) $(distfile)

include/mk/versions.mk

@@ -4,6 +4,7 @@
 
 # package versions - hhl base
 acl_version = 2.2.53
+argp-standalone_version = 1.4.1
 attr_version = 2.4.48
 autoconf_version = 2.71
 automake_version = 1.16.3
@@ -55,7 +56,7 @@ libnl_version = 3.5.0
 libressl_version = 3.0.2
 libtool_version = 2.4.6
 libz_version = 1.2.8.2015.12.26
-linux_version = 5.11
+linux_version = 5.11.5
 linux_rpi_version = 5.4.45
 m4_version = 1.4.18
 make_version = 4.3
@@ -64,6 +65,8 @@ mandoc_version = 1.14.5
 meson_version = 0.56.2
 mpc_version = 1.2.1
 mpfr_version = 4.1.0
+musl_version = 1.2.2
+musl-fts_version = 1.2.7
 ncurses_version = 6.2
 netbsd-curses_version = 0.3.1
 ninja_version = 1.10.2

toolchain/Makefile

@@ -21,6 +21,7 @@ subdirs += binutils
 subdirs += gcc-pass1
 subdirs += linux-headers
 subdirs += glibc
+#subdirs += musl
 subdirs += gcc-pass2
 
 installdirs += $(tooldir) $(global_srcdir) $(global_objdir)
@@ -60,7 +61,7 @@ removedoc:
 	rm -rf $(tooldir)/share/man
 
 remove-la:
-	find $(tooldir)/lib $(tooldir)/libexec -name '*.la' -delete
+	find $(tooldir) -name '*.la' -delete
 
 reduce-size: strip removedoc remove-la
 

toolchain/gcc-pass2/Makefile

@@ -6,9 +6,12 @@ include toolchain.mk
 objdir       = $(global_objdir)/gcc-pass2
 config_opts  += --target=$(tgt)
 config_opts  += --with-sysroot=$(build)
+config_opts += --with-glibc-version=2.11
 config_opts  += --enable-languages=c,c++
 config_opts  += --disable-multilib
 config_opts  += --disable-bootstrap
+# For musl
+#config_opts  += --disable-libsanitizer
 ifneq ($(filter i686 x86_64, $(arch)), $(arch))
 config_opts  += --disable-libsanitizer
 endif

toolchain/musl/Makefile

@@ -0,0 +1,13 @@
+#  Makefile - hhl - /src/toolchain/musl
+#  Copyright 2020 Nathan Fisher <nfisher.sr@gmail.com>
+#
+distname = musl
+distext  = gz
+include world.mk
+
+export CFLAGS = --sysroot=$(DESTDIR)
+config_opts += --host=$(tgt)
+config_opts += --bindir=/bin
+
+include targets.mk
+

world/Makefile

@@ -49,6 +49,8 @@ subdirs += expat
 #subdirs += intltool
 subdirs += kmod
 subdirs += gettext
+# for musl
+subdirs += argp-standalone
 subdirs += elfutils
 subdirs += libffi
 subdirs += libressl
@@ -68,6 +70,10 @@ subdirs += mandoc
 subdirs += texinfo
 subdirs += procps-ng
 subdirs += util-linux
+# for musl
+#subdirs += argp-standalone
+# for musl
+#subdirs += musl-fts
 subdirs += e2fsprogs
 subdirs += haveged
 subdirs += eudev

world/argp-standalone/Makefile

@@ -0,0 +1,9 @@
+#  Makefile - hhl - /src/world/argp-standalone
+#  Copyright 2020 Nathan Fisher <nfisher.sr@gmail.com>
+#
+libname     = argp
+doinstall   = true
+cflags     += -O2
+cflags     += -Wall
+cflags     += --sysroot=$(DESTDIR)
+include hhl.staticlib.mk

world/argp-standalone/src/acconfig.h

@@ -0,0 +1,3 @@
+/* Global variables needed by argp */
+#undef HAVE_PROGRAM_INVOCATION_NAME
+#undef HAVE_PROGRAM_INVOCATION_SHORT_NAME

world/argp-standalone/src/argp-ba.c

@@ -0,0 +1,25 @@
+/* Default definition for ARGP_PROGRAM_BUG_ADDRESS.
+   Copyright (C) 1996-2021 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+/* 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;

world/argp-standalone/src/argp-eexst.c

@@ -0,0 +1,31 @@
+/* Default definition for ARGP_ERR_EXIT_STATUS
+   Copyright (C) 1997-2021 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#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;

world/argp-standalone/src/argp-fmtstream.c

@@ -0,0 +1,433 @@
+/* Word-wrapping and line-truncating streams
+   Copyright (C) 1997-2021 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+/* 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
+
+#if 0
+# include <wchar.h>
+# include <libio/libioP.h>
+#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;
+
+  fs = (struct argp_fmtstream *) malloc (sizeof (struct argp_fmtstream));
+  if (fs != NULL)
+    {
+      fs->stream = stream;
+
+      fs->lmargin = lmargin;
+      fs->rmargin = rmargin;
+      fs->wmargin = wmargin;
+      fs->point_col = 0;
+      fs->point_offs = 0;
+
+      fs->buf = (char *) 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;
+}
+#if 0
+/* Not exported.  */
+#ifdef weak_alias
+weak_alias (__argp_make_fmtstream, argp_make_fmtstream)
+#endif
+#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)
+    {
+#if 0
+      __fxprintf (fs->stream, "%.*s", (int) (fs->p - fs->buf), fs->buf);
+#else
+      fwrite_unlocked (fs->buf, 1, fs->p - fs->buf, fs->stream);
+#endif
+    }
+  free (fs->buf);
+  free (fs);
+}
+#if 0
+/* Not exported.  */
+#ifdef weak_alias
+weak_alias (__argp_fmtstream_free, argp_fmtstream_free)
+#endif
+#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++)
+		{
+#if 0
+		  if (_IO_fwide (fs->stream, 0) > 0)
+		    putwc_unlocked (L' ', fs->stream);
+		  else
+#endif
+		    putc_unlocked (' ', 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)
+	      && fs->p > nextline)
+	    {
+	      /* 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 0
+		  __fxprintf (fs->stream, "%.*s\n",
+			      (int) (nl - fs->buf), fs->buf);
+#else
+		  if (nl > fs->buf)
+		    fwrite_unlocked (fs->buf, 1, nl - fs->buf, fs->stream);
+		  putc_unlocked ('\n', fs->stream);
+#endif
+
+		  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)
+#if 0
+	      if (_IO_fwide (fs->stream, 0) > 0)
+		putwc_unlocked (L' ', fs->stream);
+	      else
+#endif
+		putc_unlocked (' ', 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);
+
+#if 0
+      __fxprintf (fs->stream, "%.*s", (int) (fs->p - fs->buf), fs->buf);
+      wrote = fs->p - fs->buf;
+#else
+      wrote = fwrite_unlocked (fs->buf, 1, fs->p - fs->buf, fs->stream);
+#endif
+      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 old_size = fs->end - fs->buf;
+	  size_t new_size = old_size + amount;
+	  char *new_buf;
+
+	  if (new_size < old_size || ! (new_buf = realloc (fs->buf, new_size)))
+	    {
+	      __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 avail;
+  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;
+
+      va_start (args, fmt);
+      avail = fs->end - fs->p;
+      out = vsnprintf (fs->p, avail, fmt, args);
+      va_end (args);
+      if ((size_t) out >= avail)
+	size_guess = out + 1;
+    }
+  while ((size_t) out >= avail);
+
+  fs->p += out;
+
+  return out;
+}
+#if 0
+/* Not exported.  */
+#ifdef weak_alias
+weak_alias (__argp_fmtstream_printf, argp_fmtstream_printf)
+#endif
+#endif
+
+#endif /* !ARGP_FMTSTREAM_USE_LINEWRAP */

world/argp-standalone/src/argp-fmtstream.h

@@ -0,0 +1,263 @@
+/* Word-wrapping and line-truncating streams.
+   Copyright (C) 1997-2021 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+/* 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
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#ifndef PRINTF_STYLE
+# if __GNUC__ >= 2
+#  define PRINTF_STYLE(f, a) __attribute__ ((__format__ (__printf__, f, a)))
+# else
+#  define PRINTF_STYLE(f, a)
+# endif
+#endif
+
+#if 0
+/* 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.  */
+
+
+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, ...)
+     PRINTF_STYLE(2,3);
+extern ssize_t argp_fmtstream_printf (argp_fmtstream_t __fs,
+				      const char *__fmt, ...)
+     PRINTF_STYLE(2,3);
+
+
+/* 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
+
+/* 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);
+
+#if 1
+/* Inline versions of above routines.  */
+
+#if 1
+#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 static 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 1
+#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 */

world/argp-standalone/src/argp-namefrob.h

@@ -0,0 +1,149 @@
+/* Name frobnication for compiling argp outside of glibc
+   Copyright (C) 1997-2021 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#if 1
+/* 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 __flockfile
+#define __flockfile flockfile
+#undef __funlockfile
+#define __funlockfile funlockfile
+#undef __mempcpy
+#define __mempcpy mempcpy
+#undef __sleep
+#define __sleep sleep
+#undef __strcasecmp
+#define __strcasecmp strcasecmp
+#undef __strchrnul
+#define __strchrnul strchrnul
+#undef __strerror_r
+#define __strerror_r strerror_r
+#undef __strndup
+#define __strndup strndup
+
+#if defined(HAVE_DECL_CLEARERR_UNLOCKED) && !HAVE_DECL_CLEARERR_UNLOCKED
+# define clearerr_unlocked(x) clearerr (x)
+#endif
+#if defined(HAVE_DECL_FEOF_UNLOCKED) && !HAVE_DECL_FEOF_UNLOCKED
+# define feof_unlocked(x) feof (x)
+# endif
+#if defined(HAVE_DECL_FERROR_UNLOCKED) && !HAVE_DECL_FERROR_UNLOCKED
+# define ferror_unlocked(x) ferror (x)
+# endif
+#if defined(HAVE_DECL_FFLUSH_UNLOCKED) && !HAVE_DECL_FFLUSH_UNLOCKED
+# define fflush_unlocked(x) fflush (x)
+# endif
+#if defined(HAVE_DECL_FGETS_UNLOCKED) && !HAVE_DECL_FGETS_UNLOCKED
+# define fgets_unlocked(x,y,z) fgets (x,y,z)
+# endif
+#if defined(HAVE_DECL_FPUTC_UNLOCKED) && !HAVE_DECL_FPUTC_UNLOCKED
+# define fputc_unlocked(x,y) fputc (x,y)
+# endif
+#if defined(HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED
+# define fputs_unlocked(x,y) fputs (x,y)
+# endif
+#if defined(HAVE_DECL_FREAD_UNLOCKED) && !HAVE_DECL_FREAD_UNLOCKED
+# define fread_unlocked(w,x,y,z) fread (w,x,y,z)
+# endif
+#if defined(HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED
+# define fwrite_unlocked(w,x,y,z) fwrite (w,x,y,z)
+# endif
+#if defined(HAVE_DECL_GETC_UNLOCKED) && !HAVE_DECL_GETC_UNLOCKED
+# define getc_unlocked(x) getc (x)
+# endif
+#if defined(HAVE_DECL_GETCHAR_UNLOCKED) && !HAVE_DECL_GETCHAR_UNLOCKED
+#  define getchar_unlocked() getchar ()
+# endif
+#if defined(HAVE_DECL_PUTC_UNLOCKED) && !HAVE_DECL_PUTC_UNLOCKED
+# define putc_unlocked(x,y) putc (x,y)
+# endif
+#if defined(HAVE_DECL_PUTCHAR_UNLOCKED) && !HAVE_DECL_PUTCHAR_UNLOCKED
+# define putchar_unlocked(x) putchar (x)
+# endif
+
+extern char *__argp_basename (char *name);
+
+#endif /* !_LIBC */
+
+#ifndef __set_errno
+#define __set_errno(e) (errno = (e))
+#endif
+
+#if 0 || HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME
+# define __argp_short_program_name()	(program_invocation_short_name)
+#else
+extern char *__argp_short_program_name (void);
+#endif

world/argp-standalone/src/argp-parse.c

@@ -0,0 +1,941 @@
+/* Hierarchial argument parsing, layered over getopt
+   Copyright (C) 1995-2021 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+/* AIX requires this to be the first thing in the file.  */
+#ifndef __GNUC__
+# if HAVE_ALLOCA_H || 0
+#  include <alloca.h>
+# else
+#  ifdef _AIX
+#pragma alloca
+#  else
+#   ifndef alloca /* predefined by HP cc +Olibcalls */
+char *alloca ();
+#   endif
+#  endif
+# endif
+#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.  */
+# if defined HAVE_LIBINTL_H || 0
+#  include <libintl.h>
+#  if 0
+#   undef dgettext
+#   define dgettext(domain, msgid) \
+  __dcgettext (domain, msgid, LC_MESSAGES)
+#  endif
+# else
+#  define dgettext(domain, msgid) (msgid)
+#  define gettext(msgid) (msgid)
+# endif
+#endif
+#ifndef N_
+# define N_(msgid) (msgid)
+#endif
+
+#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.  */
+static volatile int _argp_hang;
+
+#define OPT_PROGNAME	-2
+#define OPT_USAGE	-3
+#define OPT_HANG	-4
+
+static const struct argp_option argp_default_options[] =
+{
+  {"help",	  '?',	  	0, 0,  N_("Give this help list"), -1},
+  {"usage",	  OPT_USAGE,	0, 0,  N_("Give a short usage message")},
+  {"program-name",OPT_PROGNAME, N_("NAME"), OPTION_HIDDEN,
+   N_("Set the program name")},
+  {"HANG",	  OPT_HANG,    N_("SECS"), OPTION_ARG_OPTIONAL | OPTION_HIDDEN,
+   N_("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.  */
+#if 0 || HAVE_DECL_PROGRAM_INVOCATION_NAME
+      program_invocation_name = arg;
+#endif
+      /* [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.]  */
+
+      /* Update what we use for messages.  */
+      state->name = strrchr (arg, '/');
+      if (state->name)
+	state->name++;
+      else
+	state->name = arg;
+
+#if 0 || HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME
+      program_invocation_short_name = state->name;
+#endif
+
+      if ((state->flags & (ARGP_PARSE_ARGV0 | ARGP_NO_ERRS))
+	  == ARGP_PARSE_ARGV0)
+	/* Update what getopt uses too.  */
+	state->argv[0] = arg;
+
+      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, NULL, NULL, NULL, NULL, "libc"};
+
+
+static const struct argp_option argp_version_options[] =
+{
+  {"version",	  'V',	  	0, 0,  N_("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, dgettext (state->root_argp->argp_domain,
+				       "(PROGRAM ERROR) 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, NULL, NULL, NULL, NULL, "libc"};
+
+/* 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;
+}
+
+
+/* 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;