remove local getopt_long() implementation

getopt_long() is widely supported these days, removing it from the
source tree should be okay.

Here's documentation or the implementation of getopt_long on many
systems:

All the BSDs:
https://man.netbsd.org/NetBSD-9.2-STABLE/getopt_long.3
https://man.openbsd.org/OpenBSD-7.0/getopt_long
https://www.freebsd.org/cgi/man.cgi?query=getopt_long
https://leaf.dragonflybsd.org/cgi/web-man?command=getopt_long

Illumos (OpenSolaris fork):
https://illumos.org/man/3c/getopt_long

The musl, newlib, and uclibc-ng libcs:
https://gogs.waldemar-brodkorb.de/oss/uclibc-ng/src/master/libc/unistd/getopt_long-simple.c#L49-L52
https://git.musl-libc.org/cgit/musl/tree/src/misc/getopt_long.c#n140
https://sourceware.org/git/?p=newlib-cygwin.git;a=blob;f=newlib/libc/stdlib/getopt.c;h=d4f225a7a735dc741d2874eb6c131b6fce2967c5;hb=HEAD#l475

Mingw-w64:
https://github.com/mirror/mingw-w64/blob/master/mingw-w64-crt/misc/getopt.c#L542-L549

Mac OS X:
https://developer.apple.com/library/archive/documentation/System/Conceptual/ManPages_iPhoneOS/man3/getopt_long.3.html

5 files changed, 1 insertions, 1256 deletions

diff --git a/src/Makefile b/src/Makefile
index 10e33eb..2968671 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -4,8 +4,6 @@ TARGETS = \
 	events.c \
 	feh_png.c \
 	filelist.c \
-	getopt.c \
-	getopt1.c \
 	gib_hash.c \
 	gib_imlib.c \
 	gib_list.c \
diff --git a/src/feh.h b/src/feh.h
index 0b7b627..007c7c5 100644
--- a/src/feh.h
+++ b/src/feh.h
@@ -63,6 +63,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <signal.h>
 #include <sys/wait.h>
 #include <math.h>
+#include <getopt.h>
 
 #include <Imlib2.h>
 #include "gib_hash.h"
@@ -74,7 +75,6 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "menu.h"
 
 #include "utils.h"
-#include "getopt.h"
 
 #include "debug.h"
 
diff --git a/src/getopt.c b/src/getopt.c
deleted file mode 100644
index 7641c4b..0000000
--- a/src/getopt.c
+++ /dev/null
@@ -1,950 +0,0 @@
-/* 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
-
-#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>
-#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
-   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/src/getopt.h b/src/getopt.h
deleted file mode 100644
index 0a985b0..0000000
--- a/src/getopt.h
+++ /dev/null
@@ -1,130 +0,0 @@
-/* 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., 51 Franklin Street, Fifth Floor,
-   Boston, MA 02110-1301, 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__ */
-#ifndef __cplusplus
-/* C++ is more pedantic, and demands a full prototype, not this.
-   Hope that stdlib.h has a prototype for `getopt'.  */
-	extern int getopt();
-#endif				/* __cplusplus */
-#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/src/getopt1.c b/src/getopt1.c
deleted file mode 100644
index 5a5c483..0000000
--- a/src/getopt1.c
+++ /dev/null
@@ -1,173 +0,0 @@
-/* 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.  */
-
-#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 */