/* Declarations for getopt.   Copyright (C) 1989, 1990, 1991, 1992, 1993 Free Software Foundation, Inc.   This program is free software; you can redistribute it and/or modify it   it under the terms of the GNU General Public License Version 2 as   published by the Free Software Foundation.  You may not use, modify or   distribute this program under any other version of the GNU General   Public License.   This program 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 General Public License for more details.  */#ifndef _GETOPT1_H#define _GETOPT1_H 1#ifndef HAVE_GETOPT_LONG#ifdef	__cplusplusextern "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 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 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	__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 __STDC__#ifndef HAVE_GETOPTextern int getopt (int argc, char *const *argv, const char *optstring);#endifextern 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__ */#ifndef HAVE_GETOPTextern int getopt ();#endifextern int getopt_long ();extern int getopt_long_only ();extern int _getopt_internal ();#endif /* not __STDC__ */#ifdef	__cplusplus}#endif#endif /* HAVE_GETOPT_LONG */#endif /* _GETOPT_H */