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+/** \file wgetopt.h
+	The getopt librar for wide character strings. 
+
+	This is simply the gnu getopt library, but converted for use with wchar_t instead of char. This is not usually useful since the argv array is always defined to be of type char**, but in fish, all internal commands use wide characters and hence this library is usefull.
+*/
+
+
+/* Declarations for getopt.
+   Copyright (C) 1989, 90, 91, 92, 93, 94 Free Software Foundation, Inc.
+
+This file is part of the GNU C Library.  Its master source is NOT part of
+the C library, however.  The master source lives in /gd/gnu/lib.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef _WGETOPT_H
+#define _WGETOPT_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 wchar_t *woptarg;
+
+/** 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 EOF, 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 woptind;
+
+/** Callers store zero here to inhibit the error message `getopt' prints
+   for unrecognized options.  */
+
+extern int wopterr;
+
+/** Set to an option character which was unrecognized.  */
+
+extern int woptopt;
+
+/** 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 woption
+{
+#if defined (__STDC__) && __STDC__
+  const wchar_t *name;
+#else
+  wchar_t *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__
+/* Get options from argument list */
+extern int wgetopt (int argc, wchar_t *const *argv, const wchar_t *shortopts);
+#else /* not __GNU_LIBRARY__ */
+/* Get options from argument list */
+extern int wgetopt ();
+#endif /* __GNU_LIBRARY__ */
+/* Get options from argument list */
+extern int wgetopt_long (int argc, wchar_t *const *argv, const wchar_t *shortopts,
+		        const struct woption *longopts, int *longind);
+/* Get options from argument list */
+extern int wgetopt_long_only (int argc, wchar_t *const *argv,
+			     const wchar_t *shortopts,
+		             const struct woption *longopts, int *longind);
+
+/** Internal only.  Users should not call this directly.  */
+extern int _wgetopt_internal (int argc, wchar_t *const *argv,
+			     const wchar_t *shortopts,
+		             const struct woption *longopts, int *longind,
+			     int long_only);
+#else /* not __STDC__ */
+/* Get options from argument list */
+extern int wgetopt ();
+/* Get options from argument list */
+extern int wgetopt_long ();
+/* Get options from argument list */
+extern int wgetopt_long_only ();
+
+/* Get options from argument list */
+extern int _wgetopt_internal ();
+#endif /* __STDC__ */
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif /* _WGETOPT_H */