/* getopt (basic, portable features) gnulib wrapper header. Copyright (C) 1989-2018 Free Software Foundation, Inc. This file is part of gnulib. Unlike most of the getopt implementation, it is NOT shared with the GNU C Library. This file is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This file 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. You should have received a copy of the GNU General Public License along with gnulib; if not, see . */ #ifndef _GETOPT_PFX_CORE_H #define _GETOPT_PFX_CORE_H 1 /* This header should not be used directly; include getopt.h or unistd.h instead. It does not have a protective #error, because the guard macro for getopt.h in gnulib is not fixed. */ /* Standalone applications should #define __GETOPT_PREFIX to an identifier that prefixes the external functions and variables defined in getopt-core.h and getopt-ext.h. Systematically rename identifiers so that they do not collide with the system functions and variables. Renaming avoids problems with some compilers and linkers. */ #ifdef __GETOPT_PREFIX # ifndef __GETOPT_ID # define __GETOPT_CONCAT(x, y) x ## y # define __GETOPT_XCONCAT(x, y) __GETOPT_CONCAT (x, y) # define __GETOPT_ID(y) __GETOPT_XCONCAT (__GETOPT_PREFIX, y) # endif # undef getopt # undef optarg # undef opterr # undef optind # undef optopt # define getopt __GETOPT_ID (getopt) # define optarg __GETOPT_ID (optarg) # define opterr __GETOPT_ID (opterr) # define optind __GETOPT_ID (optind) # define optopt __GETOPT_ID (optopt) /* The system's getopt.h may have already included getopt-core.h to declare the unprefixed identifiers. Undef _GETOPT_CORE_H so that getopt-core.h declares them with prefixes. */ # undef _GETOPT_CORE_H #endif #include #endif /* _GETOPT_PFX_CORE_H */