/* Declarations for getopt. Copyright 2008, 2010-2012 Karl Berry. Copyright 1989,90,91,92,93,94,96,97,2000,05 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 . */ #ifndef _GETOPT_H #ifndef __need_getopt #define _GETOPT_H 1 #endif #if defined (WIN32) && !defined (__MINGW32__) && !defined (NO_KPSE_DLL) #define KPSE_DLL 1 #endif /* WIN32 && !__MINGW32__ && !NO_KPSE_DLL */ #if !defined (KPSEDLL) #if defined (KPSE_DLL) && (defined (WIN32) || defined (__CYGWIN__)) #ifdef MAKE_KPSE_DLL #define KPSEDLL __declspec(dllexport) #else /* ! MAKE_KPSE_DLL */ #define KPSEDLL __declspec(dllimport) #endif #else /* ! (KPSE_DLL && (WIN32 || __CYGWIN__)) */ #define KPSEDLL #endif /* ! (KPSE_DLL && (WIN32 || __CYGWIN__)) */ #endif /* ! KPSEDLL */ #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 KPSEDLL 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 KPSEDLL int optind; /* Callers store zero here to inhibit the error message `getopt' prints for unrecognized options. */ extern KPSEDLL int opterr; /* Set to an option character which was unrecognized. */ extern KPSEDLL int optopt; #ifndef __need_getopt /* 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 { const char *name; /* 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 #endif /* need getopt */ #if defined(__GNU_LIBRARY__) || defined (WIN32) || defined (__CYGWIN__) /* 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. And not when compiling with C++; g++ 4.7.0 chokes on conflicting exception specifications. */ #if !defined (__cplusplus) extern KPSEDLL int getopt (int argc, char *const *argv, const char *shortopts); #endif #if defined (__MINGW32__) || defined (__CYGWIN__) #define __GETOPT_H__ /* Avoid that redeclares the getopt API. */ #endif #elif !defined (__cplusplus) extern KPSEDLL int getopt (); #endif #ifndef __need_getopt extern KPSEDLL int getopt_long (int argc, char *const *argv, const char *shortopts, const struct option *longopts, int *longind); extern KPSEDLL int getopt_long_only (int argc, char *const *argv, const char *shortopts, const struct option *longopts, int *longind); #if defined (MAKE_KPSE_DLL) || defined (NO_KPSE_DLL) /* libkpathsea internal only */ /* 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); #endif /* MAKE_KPSE_DLL || NO_KPSE_DLL */ #endif /* need getopt */ #ifdef __cplusplus } #endif /* Make sure we later can get all the definitions and declarations. */ #undef __need_getopt #endif /* _GETOPT_H */