codekingpro/portable-devtools

1/*2 * Postgres files that use getopt(3) always include this file.3 * We must cope with three different scenarios:4 * 1. We're using the platform's getopt(), and we should just import the5 *    appropriate declarations.6 * 2. The platform lacks getopt(), and we must declare everything.7 * 3. The platform has getopt(), but we're not using it because we don't8 *    like its behavior.  The declarations we make here must be compatible9 *    with both the platform's getopt() and our src/port/getopt.c.10 *11 * Portions Copyright (c) 1987, 1993, 199412 * The Regents of the University of California.  All rights reserved.13 *14 * Portions Copyright (c) 2003-2023, PostgreSQL Global Development Group15 *16 * src/include/pg_getopt.h17 */18#ifndef PG_GETOPT_H19#define PG_GETOPT_H20 21/* POSIX says getopt() is provided by unistd.h */22#include <unistd.h>23 24/* rely on the system's getopt.h if present */25#ifdef HAVE_GETOPT_H26#include <getopt.h>27#endif28 29/*30 * If we have <getopt.h>, assume it declares these variables, else do that31 * ourselves.  (We used to just declare them unconditionally, but Cygwin32 * doesn't like that.)33 */34#ifndef HAVE_GETOPT_H35 36extern PGDLLIMPORT char *optarg;37extern PGDLLIMPORT int optind;38extern PGDLLIMPORT int opterr;39extern PGDLLIMPORT int optopt;40 41#endif							/* HAVE_GETOPT_H */42 43/*44 * Some platforms have optreset but fail to declare it in <getopt.h>, so cope.45 * Cygwin, however, doesn't like this either.46 */47#if defined(HAVE_INT_OPTRESET) && !defined(__CYGWIN__)48extern PGDLLIMPORT int optreset;49#endif50 51/* Provide getopt() declaration if the platform doesn't have it */52#ifndef HAVE_GETOPT53extern int	getopt(int nargc, char *const *nargv, const char *ostr);54#endif55 56#endif							/* PG_GETOPT_H */57