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

xz/src/liblzma/common/easy_preset.c

+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       easy_preset.c
+/// \brief      Preset handling for easy encoder and decoder
+//
+//  Author:     Lasse Collin
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "easy_preset.h"
+
+
+extern bool
+lzma_easy_preset(lzma_options_easy *opt_easy, uint32_t preset)
+{
+        if (lzma_lzma_preset(&opt_easy->opt_lzma, preset))
+                return true;
+
+        opt_easy->filters[0].id = LZMA_FILTER_LZMA2;
+        opt_easy->filters[0].options = &opt_easy->opt_lzma;
+        opt_easy->filters[1].id = LZMA_VLI_UNKNOWN;
+
+        return false;
+}