Import OpenBSD getopt for MSVC from mesa/f9bb5323

Signed-off-by: Sil Vilerino <[email protected]>

Author: sivileri

getopt/getopt.h

@@ -0,0 +1,82 @@
+/*	$OpenBSD: getopt.h,v 1.2 2008/06/26 05:42:04 ray Exp $	*/
+/*	$NetBSD: getopt.h,v 1.4 2000/07/07 10:43:54 ad Exp $	*/
+
+/*-
+ * Copyright (c) 2000 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Dieter Baron and Thomas Klausner.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _GETOPT_H_
+#define _GETOPT_H_
+
+/*
+ * GNU-like getopt_long() and 4.4BSD getsubopt()/optreset extensions
+ */
+#define no_argument        0
+#define required_argument  1
+#define optional_argument  2
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct option {
+	/* name of long option */
+	const char *name;
+	/*
+	 * one of no_argument, required_argument, and optional_argument:
+	 * whether option takes an argument
+	 */
+	int has_arg;
+	/* if not NULL, set *flag to val when option found */
+	int *flag;
+	/* if flag not NULL, value to set *flag to; else return value */
+	int val;
+};
+
+int	 getopt_long(int, char * const *, const char *,
+	    const struct option *, int *);
+int	 getopt_long_only(int, char * const *, const char *,
+	    const struct option *, int *);
+#ifndef _GETOPT_DEFINED_
+#define _GETOPT_DEFINED_
+int	 getopt(int, char * const *, const char *);
+int	 getsubopt(char **, char * const *, char **);
+
+extern   char *optarg;                  /* getopt(3) external variables */
+extern   int opterr;
+extern   int optind;
+extern   int optopt;
+extern   int optreset;
+extern   char *suboptarg;               /* getsubopt(3) external variable */
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+ 
+#endif /* !_GETOPT_H_ */