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

xz/src/common/tuklib_common.h

+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       tuklib_common.h
+/// \brief      Common definitions for tuklib modules
+//
+//  Author:     Lasse Collin
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef TUKLIB_COMMON_H
+#define TUKLIB_COMMON_H
+
+// The config file may be replaced by a package-specific file.
+// It should include at least stddef.h, inttypes.h, and limits.h.
+#include "tuklib_config.h"
+
+// TUKLIB_SYMBOL_PREFIX is prefixed to all symbols exported by
+// the tuklib modules. If you use a tuklib module in a library,
+// you should use TUKLIB_SYMBOL_PREFIX to make sure that there
+// are no symbol conflicts in case someone links your library
+// into application that also uses the same tuklib module.
+#ifndef TUKLIB_SYMBOL_PREFIX
+#       define TUKLIB_SYMBOL_PREFIX
+#endif
+
+#define TUKLIB_CAT_X(a, b) a ## b
+#define TUKLIB_CAT(a, b) TUKLIB_CAT_X(a, b)
+
+#ifndef TUKLIB_SYMBOL
+#       define TUKLIB_SYMBOL(sym) TUKLIB_CAT(TUKLIB_SYMBOL_PREFIX, sym)
+#endif
+
+#ifndef TUKLIB_DECLS_BEGIN
+#       ifdef __cplusplus
+#               define TUKLIB_DECLS_BEGIN extern "C" {
+#       else
+#               define TUKLIB_DECLS_BEGIN
+#       endif
+#endif
+
+#ifndef TUKLIB_DECLS_END
+#       ifdef __cplusplus
+#               define TUKLIB_DECLS_END }
+#       else
+#               define TUKLIB_DECLS_END
+#       endif
+#endif
+
+#if defined(__GNUC__) && defined(__GNUC_MINOR__)
+#       define TUKLIB_GNUC_REQ(major, minor) \
+                ((__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)) \
+                        || __GNUC__ > (major))
+#else
+#       define TUKLIB_GNUC_REQ(major, minor) 0
+#endif
+
+#if TUKLIB_GNUC_REQ(2, 5)
+#       define tuklib_attr_noreturn __attribute__((__noreturn__))
+#else
+#       define tuklib_attr_noreturn
+#endif
+
+#if (defined(_WIN32) && !defined(__CYGWIN__)) \
+                || defined(__OS2__) || defined(__MSDOS__)
+#       define TUKLIB_DOSLIKE 1
+#endif
+
+#endif