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usr
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pgsql-9.6
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include
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pg_getopt.h
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/* * Postgres files that use getopt(3) always include this file. * We must cope with three different scenarios: * 1. We're using the platform's getopt(), and we should just import the * appropriate declarations. * 2. The platform lacks getopt(), and we must declare everything. * 3. The platform has getopt(), but we're not using it because we don't * like its behavior. The declarations we make here must be compatible * with both the platform's getopt() and our src/port/getopt.c. * * Portions Copyright (c) 1987, 1993, 1994 * The Regents of the University of California. All rights reserved. * * Portions Copyright (c) 2003-2016, PostgreSQL Global Development Group * * src/include/pg_getopt.h */ #ifndef PG_GETOPT_H #define PG_GETOPT_H /* POSIX says getopt() is provided by unistd.h */ #include <unistd.h> /* rely on the system's getopt.h if present */ #ifdef HAVE_GETOPT_H #include <getopt.h> #endif /* * If we have <getopt.h>, assume it declares these variables, else do that * ourselves. (We used to just declare them unconditionally, but Cygwin * doesn't like that.) */ #ifndef HAVE_GETOPT_H extern char *optarg; extern int optind; extern int opterr; extern int optopt; #endif /* HAVE_GETOPT_H */ /* * Some platforms have optreset but fail to declare it in <getopt.h>, so cope. * Cygwin, however, doesn't like this either. */ #if defined(HAVE_INT_OPTRESET) && !defined(__CYGWIN__) extern int optreset; #endif /* Provide getopt() declaration if the platform doesn't have it */ #ifndef HAVE_GETOPT extern int getopt(int nargc, char *const * nargv, const char *ostr); #endif #endif /* PG_GETOPT_H */