1 /* getopt_long and getopt_long_only entry points for GNU getopt.
2 Copyright (C) 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1996, 1997,
3 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
4 2010 Free Software Foundation, Inc.
6 NOTE: The canonical source of this file is maintained with the GNU C Library.
7 Bugs can be reported to bug-glibc@gnu.org.
9 GNU Make is free software; you can redistribute it and/or modify it under the
10 terms of the GNU General Public License as published by the Free Software
11 Foundation; either version 3 of the License, or (at your option) any later
14 GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
15 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
16 A PARTICULAR PURPOSE. See the GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License along with
19 this program. If not, see <http://www.gnu.org/licenses/>. */
27 #if !defined __STDC__ || !__STDC__
28 /* This is a separate conditional since some stdc systems
29 reject `defined (const)'. */
37 /* Comment out all this code if we are using the GNU C Library, and are not
38 actually compiling the library itself. This code is part of the GNU C
39 Library, but also included in many other GNU distributions. Compiling
40 and linking in this code is a waste when using the GNU C library
41 (especially if it is a shared library). Rather than having every GNU
42 program understand `configure --with-gnu-libc' and omit the object files,
43 it is simpler to just do this in the source for each such file. */
45 #define GETOPT_INTERFACE_VERSION 2
46 #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
47 #include <gnu-versions.h>
48 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
56 /* This needs to come after some library #include
57 to get __GNU_LIBRARY__ defined. */
58 #ifdef __GNU_LIBRARY__
67 getopt_long (int argc, char *const *argv, const char *options,
68 const struct option *long_options, int *opt_index)
70 return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
73 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
74 If an option that starts with '-' (not '--') doesn't match a long option,
75 but does match a short option, it is parsed as a short option
79 getopt_long_only (int argc, char *const *argv, const char *options,
80 const struct option *long_options, int *opt_index)
82 return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
86 #endif /* Not ELIDE_CODE. */
93 main (int argc, char **argv)
100 int this_option_optind = optind ? optind : 1;
101 int option_index = 0;
102 static struct option long_options[] =
107 {"verbose", 0, 0, 0},
113 c = getopt_long (argc, argv, "abc:d:0123456789",
114 long_options, &option_index);
121 printf ("option %s", long_options[option_index].name);
123 printf (" with arg %s", optarg);
137 if (digit_optind != 0 && digit_optind != this_option_optind)
138 printf ("digits occur in two different argv-elements.\n");
139 digit_optind = this_option_optind;
140 printf ("option %c\n", c);
144 printf ("option a\n");
148 printf ("option b\n");
152 printf ("option c with value `%s'\n", optarg);
156 printf ("option d with value `%s'\n", optarg);
163 printf ("?? getopt returned character code 0%o ??\n", c);
169 printf ("non-option ARGV-elements: ");
170 while (optind < argc)
171 printf ("%s ", argv[optind++]);