summaryrefslogtreecommitdiffstats
path: root/third_party/dav1d/include/compat/getopt.h
diff options
context:
space:
mode:
Diffstat (limited to 'third_party/dav1d/include/compat/getopt.h')
-rw-r--r--third_party/dav1d/include/compat/getopt.h95
1 files changed, 95 insertions, 0 deletions
diff --git a/third_party/dav1d/include/compat/getopt.h b/third_party/dav1d/include/compat/getopt.h
new file mode 100644
index 0000000000..930e002a13
--- /dev/null
+++ b/third_party/dav1d/include/compat/getopt.h
@@ -0,0 +1,95 @@
+#ifndef __GETOPT_H__
+/**
+ * DISCLAIMER
+ * This file has no copyright assigned and is placed in the Public Domain.
+ * This file is part of the mingw-w64 runtime package.
+ *
+ * The mingw-w64 runtime package and its code is distributed in the hope that it
+ * will be useful but WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESSED OR
+ * IMPLIED ARE HEREBY DISCLAIMED. This includes but is not limited to
+ * warranties of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#define __GETOPT_H__
+
+/* All the headers include this file. */
+#include <crtdefs.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern int optind; /* index of first non-option in argv */
+extern int optopt; /* single option character, as parsed */
+extern int opterr; /* flag to enable built-in diagnostics... */
+ /* (user may set to zero, to suppress) */
+
+extern char *optarg; /* pointer to argument of current option */
+
+extern int getopt(int nargc, char * const *nargv, const char *options);
+
+#ifdef _BSD_SOURCE
+/*
+ * BSD adds the non-standard `optreset' feature, for reinitialisation
+ * of `getopt' parsing. We support this feature, for applications which
+ * proclaim their BSD heritage, before including this header; however,
+ * to maintain portability, developers are advised to avoid it.
+ */
+# define optreset __mingw_optreset
+extern int optreset;
+#endif
+#ifdef __cplusplus
+}
+#endif
+/*
+ * POSIX requires the `getopt' API to be specified in `unistd.h';
+ * thus, `unistd.h' includes this header. However, we do not want
+ * to expose the `getopt_long' or `getopt_long_only' APIs, when
+ * included in this manner. Thus, close the standard __GETOPT_H__
+ * declarations block, and open an additional __GETOPT_LONG_H__
+ * specific block, only when *not* __UNISTD_H_SOURCED__, in which
+ * to declare the extended API.
+ */
+#if !defined(__UNISTD_H_SOURCED__) && !defined(__GETOPT_LONG_H__)
+#define __GETOPT_LONG_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct option /* specification for a long form option... */
+{
+ const char *name; /* option name, without leading hyphens */
+ int has_arg; /* does it take an argument? */
+ int *flag; /* where to save its status, or NULL */
+ int val; /* its associated status value */
+};
+
+enum /* permitted values for its `has_arg' field... */
+{
+ no_argument = 0, /* option never takes an argument */
+ required_argument, /* option always requires an argument */
+ optional_argument /* option may take an argument */
+};
+
+extern int getopt_long(int nargc, char * const *nargv, const char *options,
+ const struct option *long_options, int *idx);
+extern int getopt_long_only(int nargc, char * const *nargv, const char *options,
+ const struct option *long_options, int *idx);
+/*
+ * Previous MinGW implementation had...
+ */
+#ifndef HAVE_DECL_GETOPT
+/*
+ * ...for the long form API only; keep this for compatibility.
+ */
+# define HAVE_DECL_GETOPT 1
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* !defined(__UNISTD_H_SOURCED__) && !defined(__GETOPT_LONG_H__) */
+
+#endif /* !defined(__GETOPT_H__) */