text: /* Getopt for GNU.
  
     Copyright 2008-2012 Karl Berry.
     Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 2000, 2010
          Free Software Foundation, Inc.
  
     The original version of this file was part of the GNU C Library.
     Its master source is NOT part of the C library, however.
     The master source lives in libc.
     This version has been modified for use with libkpathsea.
  
     This 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.
  
     This 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 this library; if not, see <http://www.gnu.org/licenses/>.  */
  
  /* 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
  #ifdef HAVE_STRING_H
  #include <string.h>
  #endif
  
  #include <stdio.h>
  #include <string.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__imp_getopt_long
     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
  
  #if defined(WIN32) && !defined(__CYGWIN__)
  /* It's not Unix, really.  See?  Capital letters.  */
  #include <stdlib.h>
  #include <windows.h>
  #undef getpid
  #define getpid() GetCurrentProcessId()
  #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;
  
  #if defined(__GNU_LIBRARY__) || defined(WIN32)
  /* 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(const char *str, int chr) {
  	while (*str) {
  		if (*str == chr) return (char *)str;
  		str++;
  	}
  	return 0;
  }
  
  #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.  */
  
  static const char *nonoption_flags;
  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 store_args(int argc, char *const *argv) __attribute__((unused));
  static void store_args(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;
  }
  text_set_element(__libc_subinit, store_args);
  #endif
  
  /* 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.  */
  
  static void exchange(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.  */
  
  	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;
  			}
  			/* 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;
  			}
  			/* 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.  */
  
  static const char *_getopt_initialize(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 = 1;
  
  	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) {
  		/* Bash 2.0 puts a special variable in the environment for each
  		   command it runs, specifying which ARGV elements are the results of
  		   file name wildcard expansion and therefore should not be
  		   considered as options.  */
  		char var[100];
  		sprintf(var, "_%d_GNU_nonoption_argv_flags_", getpid());
  		nonoption_flags = getenv(var);
  		if (nonoption_flags == NULL)
  			nonoption_flags_len = 0;
  		else
  			nonoption_flags_len = strlen(nonoption_flags);
  	} 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(int argc, char *const *argv, const char *optstring,
                       const struct option *longopts, int *longind, int long_only) {
  	optarg = NULL;
  
  	if (!__getopt_initialized || optind == 0) {
  		optstring = _getopt_initialize(argc, argv, optstring);
  		optind = 1; /* Don't scan ARGV[0], the program name.  */
  		__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 && 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(int argc, char *const *argv, const char *optstring) {
  	return _getopt_internal(argc, argv, optstring, (const struct option *)0, (int *)0, 0);
  }
  
  int getopt_long(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);
  }
  
  int getopt_long_only(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.  */
  