Add an unpatched version of xz, XZ Utils, to /trunk/deps/third_party

xz/src/xz/args.h

+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       args.h
+/// \brief      Argument parsing
+//
+//  Author:     Lasse Collin
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+typedef struct {
+        /// Filenames from command line
+        char **arg_names;
+
+        /// Number of filenames from command line
+        size_t arg_count;
+
+        /// Name of the file from which to read filenames. This is NULL
+        /// if --files or --files0 was not used.
+        char *files_name;
+
+        /// File opened for reading from which filenames are read. This is
+        /// non-NULL only if files_name is non-NULL.
+        FILE *files_file;
+
+        /// Delimiter for filenames read from files_file
+        char files_delim;
+
+} args_info;
+
+
+extern bool opt_stdout;
+extern bool opt_force;
+extern bool opt_keep_original;
+// extern bool opt_recursive;
+extern bool opt_robot;
+
+extern const char *stdin_filename;
+
+extern void args_parse(args_info *args, int argc, char **argv);