Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

59 files changed, 6414 insertions, 0 deletions

diff --git a/src/zstd/build/.gitignore b/src/zstd/build/.gitignore
new file mode 100644
index 000000000..5a18b30a0
--- /dev/null
+++ b/src/zstd/build/.gitignore
@@ -0,0 +1,33 @@
+# Visual C++
+.vs/
+*Copy
+*.db
+*.opensdf
+*.sdf
+*.suo
+*.user
+*.opendb
+
+VS2008/bin/
+VS2010/bin/
+VS2010/zwrapbench/
+VS2012/
+VS2013/
+VS2015/
+Studio*
+
+# CMake
+cmake/build/
+CMakeCache.txt
+CMakeFiles
+CMakeScripts
+Testing
+Makefile
+cmake_install.cmake
+install_manifest.txt
+compile_commands.json
+CTestTestfile.cmake
+build
+lib
+!cmake/lib
+!meson/lib
diff --git a/src/zstd/build/LICENSE b/src/zstd/build/LICENSE
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/src/zstd/build/LICENSE
diff --git a/src/zstd/build/README.md b/src/zstd/build/README.md
new file mode 100644
index 000000000..23f92cef1
--- /dev/null
+++ b/src/zstd/build/README.md
@@ -0,0 +1,56 @@
+Projects for various integrated development environments (IDE)
+==============================================================
+
+#### Included projects
+
+The following projects are included with the zstd distribution:
+- `cmake` - CMake project contributed by Artyom Dymchenko
+- `VS2005` - Visual Studio 2005 Project (this project has been moved to the contrib directory and will no longer be supported)
+- `VS2008` - Visual Studio 2008 project
+- `VS2010` - Visual Studio 2010 project (which also works well with Visual Studio 2012, 2013, 2015)
+- `VS_scripts` - command line scripts prepared for Visual Studio compilation without IDE
+
+
+#### How to compile zstd with Visual Studio
+
+1. Install Visual Studio e.g. VS 2015 Community Edition (it's free).
+2. Download the latest version of zstd from https://github.com/facebook/zstd/releases
+3. Decompress ZIP archive.
+4. Go to decompressed directory then to `projects` then `VS2010` and open `zstd.sln`
+5. Visual Studio will ask about converting VS2010 project to VS2015 and you should agree.
+6. Change `Debug` to `Release` and if you have 64-bit Windows change also `Win32` to `x64`.
+7. Press F7 on keyboard or select `BUILD` from the menu bar and choose `Build Solution`.
+8. If compilation will be fine a compiled executable will be in `projects\VS2010\bin\x64\Release\zstd.exe`
+
+
+#### Projects available within zstd.sln
+
+The Visual Studio solution file `visual\VS2010\zstd.sln` contains many projects that will be compiled to the
+`visual\VS2010\bin\$(Platform)_$(Configuration)` directory. For example `zstd` set to `x64` and
+`Release` will be compiled to `visual\VS2010\bin\x64_Release\zstd.exe`. The solution file contains the
+following projects:
+
+- `zstd` : Command Line Utility, supporting gzip-like arguments
+- `datagen` : Synthetic and parametrable data generator, for tests
+- `fullbench`  : Precisely measure speed for each zstd inner functions
+- `fuzzer` : Test tool, to check zstd integrity on target platform 
+- `libzstd` : A static ZSTD library compiled to `libzstd_static.lib`
+- `libzstd-dll` : A dynamic ZSTD library (DLL) compiled to `libzstd.dll` with the import library `libzstd.lib`
+- `fullbench-dll` : The fullbench program compiled with the import library; the executable requires ZSTD DLL
+
+
+#### Using ZSTD DLL with Microsoft Visual C++ project
+
+The header file `lib\zstd.h` and the import library
+`visual\VS2010\bin\$(Platform)_$(Configuration)\libzstd.lib` are required to compile
+a project using Visual C++.
+
+1. The path to header files should be added to `Additional Include Directories` that can
+   be found in Project Properties of Visual Studio IDE in the `C/C++` Property Pages on the `General` page.
+2. The import library has to be added to `Additional Dependencies` that can
+   be found in Project Properties in the `Linker` Property Pages on the `Input` page.
+   If one will provide only the name `libzstd.lib` without a full path to the library
+   then the directory has to be added to `Linker\General\Additional Library Directories`.
+
+The compiled executable will require ZSTD DLL which is available at
+`visual\VS2010\bin\$(Platform)_$(Configuration)\libzstd.dll`. 
diff --git a/src/zstd/build/VS2008/fullbench/fullbench.vcproj b/src/zstd/build/VS2008/fullbench/fullbench.vcproj
new file mode 100644
index 000000000..5752643f9
--- /dev/null
+++ b/src/zstd/build/VS2008/fullbench/fullbench.vcproj
@@ -0,0 +1,549 @@
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioProject
+	ProjectType="Visual C++"
+	Version="9.00"
+	Name="fullbench"
+	ProjectGUID="{CC8F1D1B-BA2F-43E3-A71F-FA415D81AAD3}"
+	RootNamespace="fullbench"
+	Keyword="Win32Proj"
+	TargetFrameworkVersion="196613"
+	>
+	<Platforms>
+		<Platform
+			Name="Win32"
+		/>
+		<Platform
+			Name="x64"
+		/>
+	</Platforms>
+	<ToolFiles>
+	</ToolFiles>
+	<Configurations>
+		<Configuration
+			Name="Debug|Win32"
+			OutputDirectory="$(SolutionDir)bin\$(PlatformName)\$(ConfigurationName)"
+			IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
+			ConfigurationType="1"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\programs;$(SolutionDir)..\..\programs\legacy"
+				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE"
+				MinimalRebuild="true"
+				BasicRuntimeChecks="3"
+				RuntimeLibrary="3"
+				UsePrecompiledHeader="0"
+				WarningLevel="4"
+				WarnAsError="true"
+				DebugInformationFormat="4"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				LinkIncremental="2"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|Win32"
+			OutputDirectory="$(SolutionDir)bin\$(PlatformName)\$(ConfigurationName)"
+			IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
+			ConfigurationType="1"
+			CharacterSet="2"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				EnableIntrinsicFunctions="true"
+				OmitFramePointers="true"
+				AdditionalIncludeDirectories="$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\programs;$(SolutionDir)..\..\programs\legacy"
+				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE"
+				RuntimeLibrary="0"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				WarningLevel="4"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				LinkIncremental="1"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Debug|x64"
+			OutputDirectory="$(SolutionDir)bin\$(PlatformName)\$(ConfigurationName)"
+			IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
+			ConfigurationType="1"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="3"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\programs;$(SolutionDir)..\..\programs\legacy"
+				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE"
+				MinimalRebuild="true"
+				BasicRuntimeChecks="3"
+				RuntimeLibrary="3"
+				UsePrecompiledHeader="0"
+				WarningLevel="4"
+				WarnAsError="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				LinkIncremental="2"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				TargetMachine="17"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|x64"
+			OutputDirectory="$(SolutionDir)bin\$(PlatformName)\$(ConfigurationName)"
+			IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
+			ConfigurationType="1"
+			CharacterSet="2"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="3"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				EnableIntrinsicFunctions="true"
+				OmitFramePointers="true"
+				AdditionalIncludeDirectories="$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\programs;$(SolutionDir)..\..\programs\legacy"
+				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE"
+				RuntimeLibrary="0"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				WarningLevel="4"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				LinkIncremental="1"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				TargetMachine="17"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+	</Configurations>
+	<References>
+	</References>
+	<Files>
+		<Filter
+			Name="Source Files"
+			Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
+			UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
+			>
+			<File
+				RelativePath="..\..\..\lib\common\entropy_common.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\hist.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\error_private.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\fse_decompress.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\xxhash.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\zstd_common.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\pool.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\threading.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_compress.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_compress_literals.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_compress_sequences.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_compress_superblock.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstdmt_compress.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\fse_compress.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\huf_compress.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\decompress\zstd_decompress.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\decompress\zstd_decompress_block.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\decompress\zstd_ddict.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\decompress\huf_decompress.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\programs\datagen.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\programs\benchfn.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\tests\fullbench.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\programs\util.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\programs\timefn.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_fast.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_double_fast.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_lazy.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_opt.c"
+				>
+      </File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_ldm.c"
+				>
+			</File>
+		</Filter>
+		<Filter
+			Name="Header Files"
+			Filter="h;hpp;hxx;hm;inl;inc;xsd"
+			UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"
+			>
+			<File
+				RelativePath="..\..\..\lib\zstd.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\bitstream.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\error_private.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\zstd_errors.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\fse.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\fse_static.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\huf.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\huf_static.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\xxhash.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\mem.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\zstd_internal.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\zstd_static.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstdmt_compress.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_compress.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_compress_literals.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_compress_sequences.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_cwksp.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_compress_superblock.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_fast.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_double_fast.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_lazy.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_opt.h"
+				>
+      </File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_ldm.h"
+				>
+			</File>
+		</Filter>
+	</Files>
+	<Globals>
+	</Globals>
+</VisualStudioProject>
diff --git a/src/zstd/build/VS2008/fuzzer/fuzzer.vcproj b/src/zstd/build/VS2008/fuzzer/fuzzer.vcproj
new file mode 100644
index 000000000..d48bc0fab
--- /dev/null
+++ b/src/zstd/build/VS2008/fuzzer/fuzzer.vcproj
@@ -0,0 +1,585 @@
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioProject
+	ProjectType="Visual C++"
+	Version="9.00"
+	Name="fuzzer"
+	ProjectGUID="{A62E89D2-9DDE-42BA-8F9B-9DA74889A6B0}"
+	RootNamespace="fuzzer"
+	Keyword="Win32Proj"
+	TargetFrameworkVersion="196613"
+	>
+	<Platforms>
+		<Platform
+			Name="Win32"
+		/>
+		<Platform
+			Name="x64"
+		/>
+	</Platforms>
+	<ToolFiles>
+	</ToolFiles>
+	<Configurations>
+		<Configuration
+			Name="Debug|Win32"
+			OutputDirectory="$(SolutionDir)bin\$(PlatformName)\$(ConfigurationName)"
+			IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
+			ConfigurationType="1"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\compress;$(SolutionDir)..\..\lib\dictBuilder;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\programs"
+				PreprocessorDefinitions="ZSTD_MULTITHREAD=1;WIN32;_DEBUG;_CONSOLE"
+				MinimalRebuild="true"
+				BasicRuntimeChecks="3"
+				RuntimeLibrary="3"
+				UsePrecompiledHeader="0"
+				WarningLevel="4"
+				WarnAsError="true"
+				DebugInformationFormat="4"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				LinkIncremental="2"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|Win32"
+			OutputDirectory="$(SolutionDir)bin\$(PlatformName)\$(ConfigurationName)"
+			IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
+			ConfigurationType="1"
+			CharacterSet="2"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				EnableIntrinsicFunctions="true"
+				OmitFramePointers="true"
+				AdditionalIncludeDirectories="$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\compress;$(SolutionDir)..\..\lib\dictBuilder;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\programs"
+				PreprocessorDefinitions="ZSTD_MULTITHREAD=1;WIN32;NDEBUG;_CONSOLE"
+				RuntimeLibrary="0"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				WarningLevel="4"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				LinkIncremental="1"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Debug|x64"
+			OutputDirectory="$(SolutionDir)bin\$(PlatformName)\$(ConfigurationName)"
+			IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
+			ConfigurationType="1"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="3"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\compress;$(SolutionDir)..\..\lib\dictBuilder;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\programs"
+				PreprocessorDefinitions="ZSTD_MULTITHREAD=1;WIN32;_DEBUG;_CONSOLE"
+				MinimalRebuild="true"
+				BasicRuntimeChecks="3"
+				RuntimeLibrary="3"
+				UsePrecompiledHeader="0"
+				WarningLevel="4"
+				WarnAsError="true"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				LinkIncremental="2"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				TargetMachine="17"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|x64"
+			OutputDirectory="$(SolutionDir)bin\$(PlatformName)\$(ConfigurationName)"
+			IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
+			ConfigurationType="1"
+			CharacterSet="2"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+				TargetEnvironment="3"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				EnableIntrinsicFunctions="true"
+				OmitFramePointers="true"
+				AdditionalIncludeDirectories="$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\dictBuilder;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\lib\compress;$(SolutionDir)..\..\programs"
+				PreprocessorDefinitions="ZSTD_MULTITHREAD=1;WIN32;NDEBUG;_CONSOLE"
+				RuntimeLibrary="0"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				WarningLevel="4"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				LinkIncremental="1"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				TargetMachine="17"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+	</Configurations>
+	<References>
+	</References>
+	<Files>
+		<Filter
+			Name="Source Files"
+			Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
+			UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
+			>
+			<File
+				RelativePath="..\..\..\programs\util.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\programs\timefn.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\programs\datagen.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\dictBuilder\cover.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\dictBuilder\fastcover.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\dictBuilder\divsufsort.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\pool.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\threading.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\entropy_common.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\hist.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\error_private.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\fse_compress.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\fse_decompress.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\tests\fuzzer.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\huf_compress.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\decompress\huf_decompress.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\xxhash.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\dictBuilder\zdict.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\zstd_common.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstdmt_compress.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_compress.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_compress_literals.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_compress_sequences.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_compress_superblock.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\decompress\zstd_decompress.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\decompress\zstd_decompress_block.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\decompress\zstd_ddict.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_fast.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_double_fast.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_lazy.c"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_opt.c"
+				>
+      </File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_ldm.c"
+				>
+			</File>
+		</Filter>
+		<Filter
+			Name="Header Files"
+			Filter="h;hpp;hxx;hm;inl;inc;xsd"
+			UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"
+			>
+			<File
+				RelativePath="..\..\..\lib\common\bitstream.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\dictBuilder\divsufsort.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\pool.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\threading.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\error_private.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\zstd_errors.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\fse.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\fse_static.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\huf.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\huf_static.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\mem.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\xxhash.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\dictBuilder\zdict.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\dictBuilder\cover.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\dictBuilder\zdict_static.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\zstd.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\zstd_internal.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstdmt_compress.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\common\zstd_static.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_compress.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_compress_literals.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_compress_sequences.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_cwksp.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_compress_superblock.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_fast.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_double_fast.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_lazy.h"
+				>
+			</File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_opt.h"
+				>
+      </File>
+			<File
+				RelativePath="..\..\..\lib\compress\zstd_ldm.h"
+				>
+			</File>
+		</Filter>
+	</Files>
+	<Globals>
+	</Globals>
+</VisualStudioProject>
diff --git a/src/zstd/build/VS2008/zstd.sln b/src/zstd/build/VS2008/zstd.sln
new file mode 100644
index 000000000..97b88c8d0
--- /dev/null
+++ b/src/zstd/build/VS2008/zstd.sln
@@ -0,0 +1,56 @@
+
+Microsoft Visual Studio Solution File, Format Version 10.00
+# Visual Studio 2008
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zstd", "zstd\zstd.vcproj", "{1A2AB08E-5CE7-4C5B-BE55-458157C14051}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "fuzzer", "fuzzer\fuzzer.vcproj", "{A62E89D2-9DDE-42BA-8F9B-9DA74889A6B0}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "fullbench", "fullbench\fullbench.vcproj", "{CC8F1D1B-BA2F-43E3-A71F-FA415D81AAD3}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zstdlib", "zstdlib\zstdlib.vcproj", "{99DE2A79-7298-4004-A0ED-030D7A3796CA}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Win32 = Debug|Win32
+		Debug|x64 = Debug|x64
+		Release|Win32 = Release|Win32
+		Release|x64 = Release|x64
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{1A2AB08E-5CE7-4C5B-BE55-458157C14051}.Debug|Win32.ActiveCfg = Debug|Win32
+		{1A2AB08E-5CE7-4C5B-BE55-458157C14051}.Debug|Win32.Build.0 = Debug|Win32
+		{1A2AB08E-5CE7-4C5B-BE55-458157C14051}.Debug|x64.ActiveCfg = Debug|x64
+		{1A2AB08E-5CE7-4C5B-BE55-458157C14051}.Debug|x64.Build.0 = Debug|x64
+		{1A2AB08E-5CE7-4C5B-BE55-458157C14051}.Release|Win32.ActiveCfg = Release|Win32
+		{1A2AB08E-5CE7-4C5B-BE55-458157C14051}.Release|Win32.Build.0 = Release|Win32
+		{1A2AB08E-5CE7-4C5B-BE55-458157C14051}.Release|x64.ActiveCfg = Release|x64
+		{1A2AB08E-5CE7-4C5B-BE55-458157C14051}.Release|x64.Build.0 = Release|x64
+		{A62E89D2-9DDE-42BA-8F9B-9DA74889A6B0}.Debug|Win32.ActiveCfg = Debug|Win32
+		{A62E89D2-9DDE-42BA-8F9B-9DA74889A6B0}.Debug|Win32.Build.0 = Debug|Win32
+		{A62E89D2-9DDE-42BA-8F9B-9DA74889A6B0}.Debug|x64.ActiveCfg = Debug|x64
+		{A62E89D2-9DDE-42BA-8F9B-9DA74889A6B0}.Debug|x64.Build.0 = Debug|x64
+		{A62E89D2-9DDE-42BA-8F9B-9DA74889A6B0}.Release|Win32.ActiveCfg = Release|Win32
+		{A62E89D2-9DDE-42BA-8F9B-9DA74889A6B0}.Release|Win32.Build.0 = Release|Win32
+		{A62E89D2-9DDE-42BA-8F9B-9DA74889A6B0}.Release|x64.ActiveCfg = Release|x64
+		{A62E89D2-9DDE-42BA-8F9B-9DA74889A6B0}.Release|x64.Build.0 = Release|x64
+		{CC8F1D1B-BA2F-43E3-A71F-FA415D81AAD3}.Debug|Win32.ActiveCfg = Debug|Win32
+		{CC8F1D1B-BA2F-43E3-A71F-FA415D81AAD3}.Debug|Win32.Build.0 = Debug|Win32
+		{CC8F1D1B-BA2F-43E3-A71F-FA415D81AAD3}.Debug|x64.ActiveCfg = Debug|x64
+		{CC8F1D1B-BA2F-43E3-A71F-FA415D81AAD3}.Debug|x64.Build.0 = Debug|x64
+		{CC8F1D1B-BA2F-43E3-A71F-FA415D81AAD3}.Release|Win32.ActiveCfg = Release|Win32
+		{CC8F1D1B-BA2F-43E3-A71F-FA415D81AAD3}.Release|Win32.Build.0 = Release|Win32
+		{CC8F1D1B-BA2F-43E3-A71F-FA415D81AAD3}.Release|x64.ActiveCfg = Release|x64
+		{CC8F1D1B-BA2F-43E3-A71F-FA415D81AAD3}.Release|x64.Build.0 = Release|x64
+		{99DE2A79-7298-4004-A0ED-030D7A3796CA}.Debug|Win32.ActiveCfg = Debug|Win32
+		{99DE2A79-7298-4004-A0ED-030D7A3796CA}.Debug|Win32.Build.0 = Debug|Win32
+		{99DE2A79-7298-4004-A0ED-030D7A3796CA}.Debug|x64.ActiveCfg = Debug|x64
+		{99DE2A79-7298-4004-A0ED-030D7A3796CA}.Debug|x64.Build.0 = Debug|x64
+		{99DE2A79-7298-4004-A0ED-030D7A3796CA}.Release|Win32.ActiveCfg = Release|Win32
+		{99DE2A79-7298-4004-A0ED-030D7A3796CA}.Release|Win32.Build.0 = Release|Win32
+		{99DE2A79-7298-4004-A0ED-030D7A3796CA}.Release|x64.ActiveCfg = Release|x64
+		{99DE2A79-7298-4004-A0ED-030D7A3796CA}.Release|x64.Build.0 = Release|x64
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal
diff --git a/src/zstd/build/VS2008/zstd/zstd.vcproj b/src/zstd/build/VS2008/zstd/zstd.vcproj
new file mode 100644
index 000000000..ab02e6155
--- /dev/null
+++ b/src/zstd/build/VS2008/zstd/zstd.vcproj
@@ -0,0 +1,665 @@
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioProject
+	ProjectType="Visual C++"
+	Version="9.00"
+	Name="zstd"
+	ProjectGUID="{1A2AB08E-5CE7-4C5B-BE55-458157C14051}"
+	RootNamespace="zstd"
+	Keyword="Win32Proj"
+	TargetFrameworkVersion="196613"
+	>
+	<Platforms>
+		<Platform
+			Name="Win32"
+		/>
+		<Platform
+			Name="x64"
+		/>
+	</Platforms>
+	<ToolFiles>
+	</ToolFiles>
+	<Configurations>
+		<Configuration
+			Name="Debug|Win32"
+			OutputDirectory="$(SolutionDir)bin\$(PlatformName)\$(ConfigurationName)"
+			IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
+			ConfigurationType="1"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\lib\dictBuilder;$(SolutionDir)..\..\lib\compress"
+				PreprocessorDefinitions="ZSTD_MULTITHREAD=1;ZSTD_LEGACY_SUPPORT=5;WIN32;_DEBUG;_CONSOLE"
+				MinimalRebuild="true"
+				BasicRuntimeChecks="3"
+				RuntimeLibrary="3"
+				UsePrecompiledHeader="0"
+				WarningLevel="4"
+				WarnAsError="true"
+				DebugInformationFormat="4"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
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+	</Configurations>
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+	<Files>
+		<Filter
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+			Filter="h;hpp;hxx;hm;inl;inc;xsd"
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diff --git a/src/zstd/build/VS2008/zstdlib/zstdlib.vcproj b/src/zstd/build/VS2008/zstdlib/zstdlib.vcproj
new file mode 100644
index 000000000..5eb49f9b2
--- /dev/null
+++ b/src/zstd/build/VS2008/zstdlib/zstdlib.vcproj
@@ -0,0 +1,635 @@
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioProject
+	ProjectType="Visual C++"
+	Version="9.00"
+	Name="zstdlib"
+	ProjectGUID="{99DE2A79-7298-4004-A0ED-030D7A3796CA}"
+	RootNamespace="zstdlib"
+	Keyword="Win32Proj"
+	TargetFrameworkVersion="196613"
+	>
+	<Platforms>
+		<Platform
+			Name="Win32"
+		/>
+		<Platform
+			Name="x64"
+		/>
+	</Platforms>
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+	</ToolFiles>
+	<Configurations>
+		<Configuration
+			Name="Debug|Win32"
+			OutputDirectory="$(SolutionDir)bin\$(PlatformName)\$(ConfigurationName)"
+			IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
+			ConfigurationType="2"
+			CharacterSet="2"
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+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\programs\legacy;$(SolutionDir)..\..\lib\dictBuilder"
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+				MinimalRebuild="true"
+				BasicRuntimeChecks="3"
+				RuntimeLibrary="3"
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+				WarningLevel="4"
+				WarnAsError="true"
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+			<Tool
+				Name="VCManagedResourceCompilerTool"
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+			<Tool
+				Name="VCResourceCompilerTool"
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+			<Tool
+				Name="VCPreLinkEventTool"
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+			<Tool
+				Name="VCLinkerTool"
+				LinkIncremental="2"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				TargetMachine="1"
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+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|Win32"
+			OutputDirectory="$(SolutionDir)bin\$(PlatformName)\$(ConfigurationName)"
+			IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
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+			CharacterSet="2"
+			WholeProgramOptimization="1"
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+			<Tool
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+			<Tool
+				Name="VCCustomBuildTool"
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+			<Tool
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+			<Tool
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+			/>
+			<Tool
+				Name="VCMIDLTool"
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+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				EnableIntrinsicFunctions="true"
+				OmitFramePointers="true"
+				AdditionalIncludeDirectories="$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\programs\legacy;$(SolutionDir)..\..\lib\dictBuilder"
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+				RuntimeLibrary="0"
+				EnableFunctionLevelLinking="true"
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+				Name="VCManagedResourceCompilerTool"
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+			<Tool
+				Name="VCResourceCompilerTool"
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+				GenerateDebugInformation="true"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				TargetMachine="1"
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+			<Tool
+				Name="VCALinkTool"
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+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
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+			<Tool
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diff --git a/src/zstd/build/VS2010/libzstd-dll/libzstd-dll.rc b/src/zstd/build/VS2010/libzstd-dll/libzstd-dll.rc
new file mode 100644
index 000000000..ee9f56280
--- /dev/null
+++ b/src/zstd/build/VS2010/libzstd-dll/libzstd-dll.rc
@@ -0,0 +1,51 @@
+// Microsoft Visual C++ generated resource script.
+//
+
+#include "zstd.h" /* ZSTD_VERSION_STRING */
+#define APSTUDIO_READONLY_SYMBOLS
+#include "verrsrc.h"
+#undef APSTUDIO_READONLY_SYMBOLS
+
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
+LANGUAGE 9, 1
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Version
+//
+
+VS_VERSION_INFO     VERSIONINFO
+  FILEVERSION       ZSTD_VERSION_MAJOR,ZSTD_VERSION_MINOR,ZSTD_VERSION_RELEASE,0
+  PRODUCTVERSION    ZSTD_VERSION_MAJOR,ZSTD_VERSION_MINOR,ZSTD_VERSION_RELEASE,0
+ FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
+#ifdef _DEBUG
+ FILEFLAGS VS_FF_DEBUG
+#else
+ FILEFLAGS 0x0L
+#endif
+ FILEOS VOS_NT_WINDOWS32
+ FILETYPE VFT_DLL
+ FILESUBTYPE VFT2_UNKNOWN
+BEGIN
+    BLOCK "StringFileInfo"
+    BEGIN
+        BLOCK "040904B0"
+        BEGIN
+            VALUE "CompanyName", "Yann Collet, Facebook, Inc."
+            VALUE "FileDescription", "Zstandard - Fast and efficient compression algorithm"
+            VALUE "FileVersion", ZSTD_VERSION_STRING
+            VALUE "InternalName", "libzstd.dll"
+            VALUE "LegalCopyright", "Copyright (c) 2013-present, Yann Collet, Facebook, Inc."
+            VALUE "OriginalFilename", "libzstd.dll"
+            VALUE "ProductName", "Zstandard"
+            VALUE "ProductVersion", ZSTD_VERSION_STRING
+        END
+    END
+    BLOCK "VarFileInfo"
+    BEGIN
+        VALUE "Translation", 0x0409, 1200
+    END
+END
+
+#endif
diff --git a/src/zstd/build/VS2010/libzstd-dll/libzstd-dll.vcxproj b/src/zstd/build/VS2010/libzstd-dll/libzstd-dll.vcxproj
new file mode 100644
index 000000000..0957d413b
--- /dev/null
+++ b/src/zstd/build/VS2010/libzstd-dll/libzstd-dll.vcxproj
@@ -0,0 +1,254 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <ItemGroup>
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+    <ClCompile Include="..\..\..\lib\common\debug.c" />
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+    <ClCompile Include="..\..\..\lib\compress\hist.c" />
+    <ClCompile Include="..\..\..\lib\common\error_private.c" />
+    <ClCompile Include="..\..\..\lib\common\xxhash.c" />
+    <ClCompile Include="..\..\..\lib\common\zstd_common.c" />
+    <ClCompile Include="..\..\..\lib\common\fse_decompress.c" />
+    <ClCompile Include="..\..\..\lib\compress\fse_compress.c" />
+    <ClCompile Include="..\..\..\lib\compress\huf_compress.c" />
+    <ClCompile Include="..\..\..\lib\compress\zstd_compress.c" />
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index 000000000..203429355
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new file mode 100644
index 000000000..12032db44
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+		{00000000-94D5-4BF9-8A50-7BD9929A0850}.Debug|Win32.Build.0 = Debug|Win32
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+		{00000000-94D5-4BF9-8A50-7BD9929A0850}.Debug|x64.Build.0 = Debug|x64
+		{00000000-94D5-4BF9-8A50-7BD9929A0850}.Release|Win32.ActiveCfg = Release|Win32
+		{00000000-94D5-4BF9-8A50-7BD9929A0850}.Release|Win32.Build.0 = Release|Win32
+		{00000000-94D5-4BF9-8A50-7BD9929A0850}.Release|x64.ActiveCfg = Release|x64
+		{00000000-94D5-4BF9-8A50-7BD9929A0850}.Release|x64.Build.0 = Release|x64
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal
diff --git a/src/zstd/build/VS2010/zstd/zstd.rc b/src/zstd/build/VS2010/zstd/zstd.rc
new file mode 100644
index 000000000..f5e404730
--- /dev/null
+++ b/src/zstd/build/VS2010/zstd/zstd.rc
@@ -0,0 +1,51 @@
+// Microsoft Visual C++ generated resource script.
+//
+
+#include "zstd.h" /* ZSTD_VERSION_STRING */
+#define APSTUDIO_READONLY_SYMBOLS
+#include "verrsrc.h"
+#undef APSTUDIO_READONLY_SYMBOLS
+
+
+#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
+LANGUAGE 9, 1
+
+/////////////////////////////////////////////////////////////////////////////
+//
+// Version
+//
+
+VS_VERSION_INFO     VERSIONINFO
+  FILEVERSION       ZSTD_VERSION_MAJOR,ZSTD_VERSION_MINOR,ZSTD_VERSION_RELEASE,0
+  PRODUCTVERSION    ZSTD_VERSION_MAJOR,ZSTD_VERSION_MINOR,ZSTD_VERSION_RELEASE,0
+ FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
+#ifdef _DEBUG
+ FILEFLAGS VS_FF_DEBUG
+#else
+ FILEFLAGS 0x0L
+#endif
+ FILEOS VOS_NT_WINDOWS32
+ FILETYPE VFT_DLL
+ FILESUBTYPE VFT2_UNKNOWN
+BEGIN
+    BLOCK "StringFileInfo"
+    BEGIN
+        BLOCK "040904B0"
+        BEGIN
+            VALUE "CompanyName", "Yann Collet, Facebook, Inc."
+            VALUE "FileDescription", "Zstandard - Fast and efficient compression algorithm"
+            VALUE "FileVersion", ZSTD_VERSION_STRING
+            VALUE "InternalName", "zstd.exe"
+            VALUE "LegalCopyright", "Copyright (c) 2013-present, Yann Collet, Facebook, Inc."
+            VALUE "OriginalFilename", "zstd.exe"
+            VALUE "ProductName", "Zstandard"
+            VALUE "ProductVersion", ZSTD_VERSION_STRING
+        END
+    END
+    BLOCK "VarFileInfo"
+    BEGIN
+        VALUE "Translation", 0x0409, 1200
+    END
+END
+
+#endif
diff --git a/src/zstd/build/VS2010/zstd/zstd.vcxproj b/src/zstd/build/VS2010/zstd/zstd.vcxproj
new file mode 100644
index 000000000..e320d88a1
--- /dev/null
+++ b/src/zstd/build/VS2010/zstd/zstd.vcxproj
@@ -0,0 +1,257 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\..\lib\common\debug.c" />
+    <ClCompile Include="..\..\..\lib\common\entropy_common.c" />
+    <ClCompile Include="..\..\..\lib\common\error_private.c" />
+    <ClCompile Include="..\..\..\lib\common\pool.c" />
+    <ClCompile Include="..\..\..\lib\common\threading.c" />
+    <ClCompile Include="..\..\..\lib\common\xxhash.c" />
+    <ClCompile Include="..\..\..\lib\common\zstd_common.c" />
+    <ClCompile Include="..\..\..\lib\common\fse_decompress.c" />
+    <ClCompile Include="..\..\..\lib\compress\hist.c" />
+    <ClCompile Include="..\..\..\lib\compress\fse_compress.c" />
+    <ClCompile Include="..\..\..\lib\compress\huf_compress.c" />
+    <ClCompile Include="..\..\..\lib\compress\zstdmt_compress.c" />
+    <ClCompile Include="..\..\..\lib\compress\zstd_compress.c" />
+    <ClCompile Include="..\..\..\lib\compress\zstd_compress_literals.c" />
+    <ClCompile Include="..\..\..\lib\compress\zstd_compress_sequences.c" />
+    <ClCompile Include="..\..\..\lib\compress\zstd_compress_superblock.c" />
+    <ClCompile Include="..\..\..\lib\compress\zstd_fast.c" />
+    <ClCompile Include="..\..\..\lib\compress\zstd_double_fast.c" />
+    <ClCompile Include="..\..\..\lib\compress\zstd_lazy.c" />
+    <ClCompile Include="..\..\..\lib\compress\zstd_opt.c" />
+    <ClCompile Include="..\..\..\lib\compress\zstd_ldm.c" />
+    <ClCompile Include="..\..\..\lib\decompress\huf_decompress.c" />
+    <ClCompile Include="..\..\..\lib\decompress\zstd_decompress.c" />
+    <ClCompile Include="..\..\..\lib\decompress\zstd_decompress_block.c" />
+    <ClCompile Include="..\..\..\lib\decompress\zstd_ddict.c" />
+    <ClCompile Include="..\..\..\lib\dictBuilder\cover.c" />
+    <ClCompile Include="..\..\..\lib\dictBuilder\fastcover.c" />
+    <ClCompile Include="..\..\..\lib\dictBuilder\divsufsort.c" />
+    <ClCompile Include="..\..\..\lib\dictBuilder\zdict.c" />
+    <ClCompile Include="..\..\..\lib\legacy\zstd_v01.c" />
+    <ClCompile Include="..\..\..\lib\legacy\zstd_v02.c" />
+    <ClCompile Include="..\..\..\lib\legacy\zstd_v03.c" />
+    <ClCompile Include="..\..\..\lib\legacy\zstd_v04.c" />
+    <ClCompile Include="..\..\..\lib\legacy\zstd_v05.c" />
+    <ClCompile Include="..\..\..\lib\legacy\zstd_v06.c" />
+    <ClCompile Include="..\..\..\lib\legacy\zstd_v07.c" />
+    <ClCompile Include="..\..\..\programs\util.c" />
+    <ClCompile Include="..\..\..\programs\timefn.c" />
+    <ClCompile Include="..\..\..\programs\benchfn.c" />
+    <ClCompile Include="..\..\..\programs\benchzstd.c" />
+    <ClCompile Include="..\..\..\programs\datagen.c" />
+    <ClCompile Include="..\..\..\programs\dibio.c" />
+    <ClCompile Include="..\..\..\programs\fileio.c" />
+    <ClCompile Include="..\..\..\programs\zstdcli.c" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="..\..\..\lib\common\pool.h" />
+    <ClInclude Include="..\..\..\lib\common\threading.h" />
+    <ClInclude Include="..\..\..\lib\common\xxhash.h" />
+    <ClInclude Include="..\..\..\lib\compress\zstdmt_compress.h" />
+    <ClInclude Include="..\..\..\lib\dictBuilder\zdict.h" />
+    <ClInclude Include="..\..\..\lib\dictBuilder\cover.h" />
+    <ClInclude Include="..\..\..\lib\dictBuilder\divsufsort.h" />
+    <ClInclude Include="..\..\..\lib\common\fse.h" />
+    <ClInclude Include="..\..\..\lib\common\huf.h" />
+    <ClInclude Include="..\..\..\lib\zstd.h" />
+    <ClInclude Include="..\..\..\lib\common\zstd_internal.h" />
+    <ClInclude Include="..\..\..\lib\common\zstd_errors.h" />
+    <ClInclude Include="..\..\..\lib\compress\zstd_compress.h" />
+    <ClInclude Include="..\..\..\lib\compress\zstd_compress_literals.h" />
+    <ClInclude Include="..\..\..\lib\compress\zstd_compress_sequences.h" />
+    <ClInclude Include="..\..\..\lib\compress\zstd_cwksp.h" />
+    <ClInclude Include="..\..\..\lib\compress\zstd_compress_superblock.h" />
+    <ClInclude Include="..\..\..\lib\compress\zstd_fast.h" />
+    <ClInclude Include="..\..\..\lib\compress\zstd_double_fast.h" />
+    <ClInclude Include="..\..\..\lib\compress\zstd_lazy.h" />
+    <ClInclude Include="..\..\..\lib\compress\zstd_opt.h" />
+    <ClInclude Include="..\..\..\lib\compress\zstd_ldm.h" />
+    <ClInclude Include="..\..\..\lib\decompress\zstd_ddict.h" />
+    <ClInclude Include="..\..\..\lib\legacy\zstd_legacy.h" />
+    <ClInclude Include="..\..\..\lib\legacy\zstd_v01.h" />
+    <ClInclude Include="..\..\..\lib\legacy\zstd_v02.h" />
+    <ClInclude Include="..\..\..\lib\legacy\zstd_v03.h" />
+    <ClInclude Include="..\..\..\lib\legacy\zstd_v04.h" />
+    <ClInclude Include="..\..\..\lib\legacy\zstd_v05.h" />
+    <ClInclude Include="..\..\..\lib\legacy\zstd_v06.h" />
+    <ClInclude Include="..\..\..\lib\legacy\zstd_v07.h" />
+    <ClInclude Include="..\..\..\programs\benchzstd.h" />
+    <ClInclude Include="..\..\..\programs\datagen.h" />
+    <ClInclude Include="..\..\..\programs\dibio.h" />
+    <ClInclude Include="..\..\..\programs\fileio.h" />
+    <ClInclude Include="..\..\..\programs\platform.h" />
+    <ClInclude Include="..\..\..\programs\util.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="zstd.rc" />
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{4E52A41A-F33B-4C7A-8C36-A1A6B4F4277C}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>zstd</RootNamespace>
+    <OutDir>$(SolutionDir)bin\$(Platform)_$(Configuration)\</OutDir>
+    <IntDir>$(SolutionDir)bin\obj\$(RootNamespace)_$(Platform)_$(Configuration)\</IntDir>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+    <IncludePath>$(IncludePath);$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\compress;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\dictBuilder;$(UniversalCRT_IncludePath);</IncludePath>
+    <RunCodeAnalysis>false</RunCodeAnalysis>
+    <LibraryPath>$(LibraryPath)</LibraryPath>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <LinkIncremental>true</LinkIncremental>
+    <IncludePath>$(IncludePath);$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\compress;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\dictBuilder;$(UniversalCRT_IncludePath);</IncludePath>
+    <RunCodeAnalysis>false</RunCodeAnalysis>
+    <LibraryPath>$(LibraryPath);</LibraryPath>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+    <IncludePath>$(IncludePath);$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\compress;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\dictBuilder;$(UniversalCRT_IncludePath);</IncludePath>
+    <RunCodeAnalysis>false</RunCodeAnalysis>
+    <LibraryPath>$(LibraryPath)</LibraryPath>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <LinkIncremental>false</LinkIncremental>
+    <IncludePath>$(IncludePath);$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\compress;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\dictBuilder;$(UniversalCRT_IncludePath);</IncludePath>
+    <RunCodeAnalysis>false</RunCodeAnalysis>
+    <LibraryPath>$(LibraryPath);</LibraryPath>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level4</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>ZSTD_MULTITHREAD=1;ZSTD_LEGACY_SUPPORT=5;WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <EnablePREfast>false</EnablePREfast>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <AdditionalDependencies>setargv.obj;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level4</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>ZSTD_MULTITHREAD=1;ZSTD_LEGACY_SUPPORT=5;WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <EnablePREfast>false</EnablePREfast>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <AdditionalDependencies>setargv.obj;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level4</WarningLevel>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>ZSTD_MULTITHREAD=1;ZSTD_LEGACY_SUPPORT=5;WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <EnablePREfast>false</EnablePREfast>
+      <TreatWarningAsError>false</TreatWarningAsError>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <AdditionalDependencies>setargv.obj;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level4</WarningLevel>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>ZSTD_MULTITHREAD=1;ZSTD_LEGACY_SUPPORT=5;WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <TreatWarningAsError>false</TreatWarningAsError>
+      <EnablePREfast>false</EnablePREfast>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <AdditionalOptions>/DZSTD_MULTITHREAD %(AdditionalOptions)</AdditionalOptions>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <AdditionalDependencies>setargv.obj;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
diff --git a/src/zstd/build/VS_scripts/README.md b/src/zstd/build/VS_scripts/README.md
new file mode 100644
index 000000000..6ccaca788
--- /dev/null
+++ b/src/zstd/build/VS_scripts/README.md
@@ -0,0 +1,64 @@
+Command line scripts for Visual Studio compilation without IDE
+==============================================================
+
+Here are a few command lines for reference :
+
+### Build with Visual Studio 2013 for msvcr120.dll
+
+Running the following command will build both the `Release Win32` and `Release x64` versions:
+```batch
+build.VS2013.cmd
+```
+The result of each build will be in the corresponding `bin\Release\{ARCH}\` folder.
+
+If you want to only need one architecture:
+- Win32: `build.generic.cmd VS2013 Win32 Release v120`
+- x64: `build.generic.cmd VS2013 x64 Release v120`
+
+If you want a Debug build:
+- Win32: `build.generic.cmd VS2013 Win32 Debug v120`
+- x64: `build.generic.cmd VS2013 x64 Debug v120`
+
+### Build with Visual Studio 2015 for msvcr140.dll
+
+Running the following command will build both the `Release Win32` and `Release x64` versions:
+```batch
+build.VS2015.cmd
+```
+The result of each build will be in the corresponding `bin\Release\{ARCH}\` folder.
+
+If you want to only need one architecture:
+- Win32: `build.generic.cmd VS2015 Win32 Release v140`
+- x64: `build.generic.cmd VS2015 x64 Release v140`
+
+If you want a Debug build:
+- Win32: `build.generic.cmd VS2015 Win32 Debug v140`
+- x64: `build.generic.cmd VS2015 x64 Debug v140`
+
+### Build with Visual Studio 2015 for msvcr120.dll
+
+This capability is offered through `build.generic.cmd` using proper arguments:
+
+**For Win32**
+```batch
+build.generic.cmd VS2015 Win32 Release v120
+```
+The result of the build will be in the `bin\Release\Win32\` folder.
+
+**For x64**
+```batch
+build.generic.cmd VS2015 x64 Release v120
+```
+The result of the build will be in the `bin\Release\x64\` folder.
+
+If you want Debug builds, replace `Release` with `Debug`.
+
+### Build with Visual Studio 2017
+
+`build.VS2017.cmd`, contributed by [@HaydnTrigg](https://github.com/HaydnTrigg),
+will build both the `Release Win32` and `Release x64` versions
+of the first VS2017 variant it finds, in this priority order :
+Enterprise > Professional > Community
+
+Alternatively, it's possible to target a specific version,
+using appropriate script, such as `build.VS2017Enterprise.cmd` for example.
diff --git a/src/zstd/build/VS_scripts/build.VS2010.cmd b/src/zstd/build/VS_scripts/build.VS2010.cmd
new file mode 100644
index 000000000..c3bc1763e
--- /dev/null
+++ b/src/zstd/build/VS_scripts/build.VS2010.cmd
@@ -0,0 +1,7 @@
+@echo off
+
+rem build 32-bit
+call "%~p0%build.generic.cmd" VS2010 Win32 Release v100
+
+rem build 64-bit
+call "%~p0%build.generic.cmd" VS2010 x64 Release v100
\ No newline at end of file
diff --git a/src/zstd/build/VS_scripts/build.VS2012.cmd b/src/zstd/build/VS_scripts/build.VS2012.cmd
new file mode 100644
index 000000000..d7399a9d6
--- /dev/null
+++ b/src/zstd/build/VS_scripts/build.VS2012.cmd
@@ -0,0 +1,6 @@
+@echo off
+
+rem build 32-bit
+call "%~p0%build.generic.cmd" VS2012 Win32 Release v110
+rem build 64-bit
+call "%~p0%build.generic.cmd" VS2012 x64 Release v110
\ No newline at end of file
diff --git a/src/zstd/build/VS_scripts/build.VS2013.cmd b/src/zstd/build/VS_scripts/build.VS2013.cmd
new file mode 100644
index 000000000..486ba6cf0
--- /dev/null
+++ b/src/zstd/build/VS_scripts/build.VS2013.cmd
@@ -0,0 +1,7 @@
+@echo off
+
+rem build 32-bit
+call "%~p0%build.generic.cmd" VS2013 Win32 Release v120
+
+rem build 64-bit
+call "%~p0%build.generic.cmd" VS2013 x64 Release v120
\ No newline at end of file
diff --git a/src/zstd/build/VS_scripts/build.VS2015.cmd b/src/zstd/build/VS_scripts/build.VS2015.cmd
new file mode 100644
index 000000000..abc41c9a0
--- /dev/null
+++ b/src/zstd/build/VS_scripts/build.VS2015.cmd
@@ -0,0 +1,7 @@
+@echo off
+
+rem build 32-bit
+call "%~p0%build.generic.cmd" VS2015 Win32 Release v140
+
+rem build 64-bit
+call "%~p0%build.generic.cmd" VS2015 x64 Release v140
\ No newline at end of file
diff --git a/src/zstd/build/VS_scripts/build.VS2017.cmd b/src/zstd/build/VS_scripts/build.VS2017.cmd
new file mode 100644
index 000000000..a810faa53
--- /dev/null
+++ b/src/zstd/build/VS_scripts/build.VS2017.cmd
@@ -0,0 +1,7 @@
+@echo off
+
+rem build 32-bit
+call "%~p0%build.generic.cmd" VS2017 Win32 Release v141
+
+rem build 64-bit
+call "%~p0%build.generic.cmd" VS2017 x64 Release v141
\ No newline at end of file
diff --git a/src/zstd/build/VS_scripts/build.VS2017Community.cmd b/src/zstd/build/VS_scripts/build.VS2017Community.cmd
new file mode 100644
index 000000000..133e1b456
--- /dev/null
+++ b/src/zstd/build/VS_scripts/build.VS2017Community.cmd
@@ -0,0 +1,7 @@
+@echo off
+
+rem build 32-bit
+call "%~p0%build.generic.cmd" VS2017Community Win32 Release v141
+
+rem build 64-bit
+call "%~p0%build.generic.cmd" VS2017Community x64 Release v141
\ No newline at end of file
diff --git a/src/zstd/build/VS_scripts/build.VS2017Enterprise.cmd b/src/zstd/build/VS_scripts/build.VS2017Enterprise.cmd
new file mode 100644
index 000000000..6a7093205
--- /dev/null
+++ b/src/zstd/build/VS_scripts/build.VS2017Enterprise.cmd
@@ -0,0 +1,7 @@
+@echo off
+
+rem build 32-bit
+call "%~p0%build.generic.cmd" VS2017Enterprise Win32 Release v141
+
+rem build 64-bit
+call "%~p0%build.generic.cmd" VS2017Enterprise x64 Release v141
\ No newline at end of file
diff --git a/src/zstd/build/VS_scripts/build.VS2017Professional.cmd b/src/zstd/build/VS_scripts/build.VS2017Professional.cmd
new file mode 100644
index 000000000..d183519df
--- /dev/null
+++ b/src/zstd/build/VS_scripts/build.VS2017Professional.cmd
@@ -0,0 +1,7 @@
+@echo off
+
+rem build 32-bit
+call "%~p0%build.generic.cmd" VS2017Professional Win32 Release v141
+
+rem build 64-bit
+call "%~p0%build.generic.cmd" VS2017Professional x64 Release v141
\ No newline at end of file
diff --git a/src/zstd/build/VS_scripts/build.generic.cmd b/src/zstd/build/VS_scripts/build.generic.cmd
new file mode 100644
index 000000000..a7ca4d067
--- /dev/null
+++ b/src/zstd/build/VS_scripts/build.generic.cmd
@@ -0,0 +1,62 @@
+@echo off
+
+IF "%1%" == "" GOTO display_help
+
+SETLOCAL
+
+SET msbuild_version=%1
+
+SET msbuild_platform=%2
+IF "%msbuild_platform%" == "" SET msbuild_platform=x64
+
+SET msbuild_configuration=%3
+IF "%msbuild_configuration%" == "" SET msbuild_configuration=Release
+
+SET msbuild_toolset=%4
+
+GOTO build
+
+:display_help
+
+echo Syntax: build.generic.cmd msbuild_version msbuild_platform msbuild_configuration msbuild_toolset
+echo   msbuild_version:          VS installed version (VS2012, VS2013, VS2015, VS2017, ...)
+echo   msbuild_platform:         Platform (x64 or Win32)
+echo   msbuild_configuration:    VS configuration (Release or Debug)
+echo   msbuild_toolset:          Platform Toolset (v100, v110, v120, v140, v141)
+
+EXIT /B 1
+
+:build
+
+SET msbuild="%windir%\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
+SET msbuild_vs2017community="%programfiles(x86)%\Microsoft Visual Studio\2017\Community\MSBuild\15.0\Bin\MSBuild.exe"
+SET msbuild_vs2017professional="%programfiles(x86)%\Microsoft Visual Studio\2017\Professional\MSBuild\15.0\Bin\MSBuild.exe"
+SET msbuild_vs2017enterprise="%programfiles(x86)%\Microsoft Visual Studio\2017\Enterprise\MSBuild\15.0\Bin\MSBuild.exe"
+IF %msbuild_version% == VS2013 SET msbuild="%programfiles(x86)%\MSBuild\12.0\Bin\MSBuild.exe"
+IF %msbuild_version% == VS2015 SET msbuild="%programfiles(x86)%\MSBuild\14.0\Bin\MSBuild.exe"
+IF %msbuild_version% == VS2017Community SET msbuild=%msbuild_vs2017community%
+IF %msbuild_version% == VS2017Professional SET msbuild=%msbuild_vs2017professional%
+IF %msbuild_version% == VS2017Enterprise SET msbuild=%msbuild_vs2017enterprise%
+IF %msbuild_version% == VS2017 (
+	IF EXIST %msbuild_vs2017community% SET msbuild=%msbuild_vs2017community%
+	IF EXIST %msbuild_vs2017professional% SET msbuild=%msbuild_vs2017professional%
+	IF EXIST %msbuild_vs2017enterprise% SET msbuild=%msbuild_vs2017enterprise%
+)
+
+SET project="%~p0\..\VS2010\zstd.sln"
+
+SET msbuild_params=/verbosity:minimal /nologo /t:Clean,Build /p:Platform=%msbuild_platform% /p:Configuration=%msbuild_configuration%
+IF NOT "%msbuild_toolset%" == "" SET msbuild_params=%msbuild_params% /p:PlatformToolset=%msbuild_toolset%
+
+SET output=%~p0%bin
+SET output="%output%/%msbuild_configuration%/%msbuild_platform%/"
+SET msbuild_params=%msbuild_params% /p:OutDir=%output%
+
+echo ### Building %msbuild_version% project for %msbuild_configuration% %msbuild_platform% (%msbuild_toolset%)...
+echo ### Build Params: %msbuild_params%
+
+%msbuild% %project% %msbuild_params%
+IF ERRORLEVEL 1 EXIT /B 1
+echo # Success
+echo # OutDir: %output%
+echo #
diff --git a/src/zstd/build/cmake/.gitignore b/src/zstd/build/cmake/.gitignore
new file mode 100644
index 000000000..2e51e8954
--- /dev/null
+++ b/src/zstd/build/cmake/.gitignore
@@ -0,0 +1,10 @@
+# cmake working directory
+cmakeBuild
+
+# cmake artefacts
+CMakeCache.txt
+CMakeFiles
+Makefile
+cmake_install.cmake
+cmake_uninstall.cmake
+*.1
diff --git a/src/zstd/build/cmake/CMakeLists.txt b/src/zstd/build/cmake/CMakeLists.txt
new file mode 100644
index 000000000..9b5d7efb8
--- /dev/null
+++ b/src/zstd/build/cmake/CMakeLists.txt
@@ -0,0 +1,203 @@
+# ################################################################
+# Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+# All rights reserved.
+#
+# This source code is licensed under both the BSD-style license (found in the
+# LICENSE file in the root directory of this source tree) and the GPLv2 (found
+# in the COPYING file in the root directory of this source tree).
+# ################################################################
+
+cmake_minimum_required(VERSION 2.8.9 FATAL_ERROR)
+  
+# As of 2018-12-26 ZSTD has been validated to build with cmake version 3.13.2 new policies. 
+# Set and use the newest cmake policies that are validated to work 
+set(ZSTD_MAX_VALIDATED_CMAKE_MAJOR_VERSION "3") 
+set(ZSTD_MAX_VALIDATED_CMAKE_MINOR_VERSION "13") #Policies never changed at PATCH level
+if("${CMAKE_MAJOR_VERSION}" LESS 3)
+  set(ZSTD_CMAKE_POLICY_VERSION "${CMAKE_VERSION}") 
+elseif( "${ZSTD_MAX_VALIDATED_CMAKE_MAJOR_VERSION}" EQUAL "${CMAKE_MAJOR_VERSION}" AND 
+        "${ZSTD_MAX_VALIDATED_CMAKE_MINOR_VERSION}" GREATER "${CMAKE_MINOR_VERSION}")
+    set(ZSTD_CMAKE_POLICY_VERSION "${CMAKE_VERSION}") 
+else() 
+    set(ZSTD_CMAKE_POLICY_VERSION "${ZSTD_MAX_VALIDATED_CMAKE_MAJOR_VERSION}.${ZSTD_MAX_VALIDATED_CMAKE_MINOR_VERSION}.0") 
+endif()
+cmake_policy(VERSION ${ZSTD_CMAKE_POLICY_VERSION})
+
+set(CMAKE_BUILD_WITH_INSTALL_RPATH on)
+
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/CMakeModules")
+set(ZSTD_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../..")
+set(LIBRARY_DIR ${ZSTD_SOURCE_DIR}/lib)
+# Parse version
+include(GetZstdLibraryVersion)
+GetZstdLibraryVersion(${LIBRARY_DIR}/zstd.h zstd_VERSION_MAJOR zstd_VERSION_MINOR zstd_VERSION_PATCH)
+
+if( CMAKE_MAJOR_VERSION LESS 3 )
+  ## Provide cmake 3+ behavior for older versions of cmake
+  project(zstd)
+  set(PROJECT_VERSION_MAJOR ${zstd_VERSION_MAJOR})
+  set(PROJECT_VERSION_MINOR ${zstd_VERSION_MINOR})
+  set(PROJECT_VERSION_PATCH ${zstd_VERSION_PATCH})
+  set(PROJECT_VERSION "${zstd_VERSION_MAJOR}.${zstd_VERSION_MINOR}.${zstd_VERSION_PATCH}")
+  enable_language(C)   # Main library is in C
+  enable_language(CXX) # Testing contributed code also utilizes CXX
+else()
+  project(zstd
+    VERSION "${zstd_VERSION_MAJOR}.${zstd_VERSION_MINOR}.${zstd_VERSION_PATCH}"
+    LANGUAGES C   # Main library is in C
+              CXX # Testing contributed code also utilizes CXX
+    )
+endif()
+message(STATUS "ZSTD VERSION: ${zstd_VERSION}")
+set(zstd_HOMEPAGE_URL "http://www.zstd.net")
+set(zstd_DESCRIPTION  "Zstandard is a real-time compression algorithm, providing high compression ratios.")
+
+# Set a default build type if none was specified
+if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+  message(STATUS "Setting build type to 'Release' as none was specified.")
+  set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build." FORCE)
+  # Set the possible values of build type for cmake-gui
+  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release" "MinSizeRel" "RelWithDebInfo")
+endif()
+
+include(GNUInstallDirs)
+
+#-----------------------------------------------------------------------------
+# Add extra compilation flags
+#-----------------------------------------------------------------------------
+include(AddZstdCompilationFlags)
+ADD_ZSTD_COMPILATION_FLAGS()
+
+# Always hide XXHash symbols
+add_definitions(-DXXH_NAMESPACE=ZSTD_)
+
+#-----------------------------------------------------------------------------
+# Installation variables
+#-----------------------------------------------------------------------------
+message(STATUS "CMAKE_INSTALL_PREFIX: ${CMAKE_INSTALL_PREFIX}")
+message(STATUS "CMAKE_INSTALL_LIBDIR: ${CMAKE_INSTALL_LIBDIR}")
+
+#-----------------------------------------------------------------------------
+# Options
+#-----------------------------------------------------------------------------
+
+# Legacy support
+option(ZSTD_LEGACY_SUPPORT "LEGACY SUPPORT" OFF)
+
+if (ZSTD_LEGACY_SUPPORT)
+    message(STATUS "ZSTD_LEGACY_SUPPORT defined!")
+    add_definitions(-DZSTD_LEGACY_SUPPORT=5)
+else ()
+    message(STATUS "ZSTD_LEGACY_SUPPORT not defined!")
+    add_definitions(-DZSTD_LEGACY_SUPPORT=0)
+endif ()
+
+# Multi-threading support
+option(ZSTD_MULTITHREAD_SUPPORT "MULTITHREADING SUPPORT" ON)
+
+if (ZSTD_MULTITHREAD_SUPPORT)
+    message(STATUS "ZSTD_MULTITHREAD_SUPPORT is enabled")
+else ()
+    message(STATUS "ZSTD_MULTITHREAD_SUPPORT is disabled")
+endif ()
+
+option(ZSTD_BUILD_PROGRAMS "BUILD PROGRAMS" ON)
+option(ZSTD_BUILD_CONTRIB "BUILD CONTRIB" OFF)
+
+# Respect the conventional CMake option for enabling tests if it was specified on the first configure
+if (BUILD_TESTING)
+    set(ZSTD_BUILD_TESTS_default ON)
+else()
+    set(ZSTD_BUILD_TESTS_default OFF)
+endif()
+option(ZSTD_BUILD_TESTS "BUILD TESTS" ${ZSTD_BUILD_TESTS_default})
+if (MSVC)
+    option(ZSTD_USE_STATIC_RUNTIME "LINK TO STATIC RUN-TIME LIBRARIES" OFF)
+endif ()
+
+#-----------------------------------------------------------------------------
+# External dependencies
+#-----------------------------------------------------------------------------
+if (ZSTD_MULTITHREAD_SUPPORT AND UNIX)
+    set(THREADS_PREFER_PTHREAD_FLAG ON)
+    find_package(Threads REQUIRED)
+    if(CMAKE_USE_PTHREADS_INIT)
+        set(THREADS_LIBS "${CMAKE_THREAD_LIBS_INIT}")
+    else()
+        message(SEND_ERROR "ZSTD currently does not support thread libraries other than pthreads")
+    endif()
+endif ()
+
+#-----------------------------------------------------------------------------
+# Add source directories
+#-----------------------------------------------------------------------------
+add_subdirectory(lib)
+
+option(ZSTD_PROGRAMS_LINK_SHARED "PROGRAMS LINK SHARED" OFF)
+
+if (ZSTD_BUILD_PROGRAMS)
+    if (NOT ZSTD_BUILD_STATIC AND NOT ZSTD_PROGRAMS_LINK_SHARED)
+        message(SEND_ERROR "You need to build static library to build zstd CLI")
+    elseif(NOT ZSTD_BUILD_SHARED AND ZSTD_PROGRAMS_LINK_SHARED)
+        message(SEND_ERROR "You need to build shared library to build zstd CLI")
+    endif ()
+
+    add_subdirectory(programs)
+endif ()
+
+if (ZSTD_BUILD_TESTS)
+    enable_testing()
+    if (NOT ZSTD_BUILD_STATIC)
+        message(SEND_ERROR "You need to build static library to build tests")
+    endif ()
+
+    add_subdirectory(tests)
+endif ()
+
+if (ZSTD_BUILD_CONTRIB)
+    add_subdirectory(contrib)
+endif ()
+
+#-----------------------------------------------------------------------------
+# Add clean-all target
+#-----------------------------------------------------------------------------
+add_custom_target(clean-all
+   COMMAND ${CMAKE_BUILD_TOOL} clean
+   COMMAND rm -rf ${CMAKE_BINARY_DIR}/
+)
+
+#-----------------------------------------------------------------------------
+# Generate Package Config files
+#
+# This section is based on the boiler plate code from:
+# https://cmake.org/cmake/help/latest/manual/cmake-packages.7.html#creating-packages
+#-----------------------------------------------------------------------------
+include(CMakePackageConfigHelpers)
+write_basic_package_version_file(
+    "${CMAKE_CURRENT_BINARY_DIR}/zstdConfigVersion.cmake"
+    VERSION ${zstd_VERSION}
+    COMPATIBILITY SameMajorVersion
+    )
+
+# A Package Config file that works from the build directory
+export(EXPORT zstdExports
+    FILE "${CMAKE_CURRENT_BINARY_DIR}/zstdTargets.cmake"
+    NAMESPACE zstd::
+    )
+configure_file(zstdConfig.cmake
+    "${CMAKE_CURRENT_BINARY_DIR}/zstdConfig.cmake"
+    COPYONLY
+    )
+
+# A Package Config file that works from the installation directory
+set(ConfigPackageLocation ${CMAKE_INSTALL_LIBDIR}/cmake/zstd)
+install(EXPORT zstdExports
+    FILE zstdTargets.cmake
+    NAMESPACE zstd::
+    DESTINATION ${ConfigPackageLocation}
+    )
+install(FILES
+    zstdConfig.cmake
+    "${CMAKE_CURRENT_BINARY_DIR}/zstdConfigVersion.cmake"
+    DESTINATION ${ConfigPackageLocation}
+    )
diff --git a/src/zstd/build/cmake/CMakeModules/AddZstdCompilationFlags.cmake b/src/zstd/build/cmake/CMakeModules/AddZstdCompilationFlags.cmake
new file mode 100644
index 000000000..186819885
--- /dev/null
+++ b/src/zstd/build/cmake/CMakeModules/AddZstdCompilationFlags.cmake
@@ -0,0 +1,79 @@
+include(CheckCXXCompilerFlag)
+include(CheckCCompilerFlag)
+
+function(EnableCompilerFlag _flag _C _CXX)
+    string(REGEX REPLACE "\\+" "PLUS" varname "${_flag}")
+    string(REGEX REPLACE "[^A-Za-z0-9]+" "_" varname "${varname}")
+    string(REGEX REPLACE "^_+" "" varname "${varname}")
+    string(TOUPPER "${varname}" varname)
+    if (_C)
+        CHECK_C_COMPILER_FLAG(${_flag} C_FLAG_${varname})
+        if (C_FLAG_${varname})
+            set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${_flag}" PARENT_SCOPE)
+        endif ()
+    endif ()
+    if (_CXX)
+        CHECK_CXX_COMPILER_FLAG(${_flag} CXX_FLAG_${varname})
+        if (CXX_FLAG_${varname})
+            set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${_flag}" PARENT_SCOPE)
+        endif ()
+    endif ()
+endfunction()
+
+macro(ADD_ZSTD_COMPILATION_FLAGS)
+    if (CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang" OR MINGW) #Not only UNIX but also WIN32 for MinGW
+        #Set c++11 by default
+        EnableCompilerFlag("-std=c++11" false true)
+        #Set c99 by default
+        EnableCompilerFlag("-std=c99" true false)
+        EnableCompilerFlag("-Wall" true true)
+        EnableCompilerFlag("-Wextra" true true)
+        EnableCompilerFlag("-Wundef" true true)
+        EnableCompilerFlag("-Wshadow" true true)
+        EnableCompilerFlag("-Wcast-align" true true)
+        EnableCompilerFlag("-Wcast-qual" true true)
+        EnableCompilerFlag("-Wstrict-prototypes" true false)
+        # Enable asserts in Debug mode
+        if (CMAKE_BUILD_TYPE MATCHES "Debug")
+            EnableCompilerFlag("-DDEBUGLEVEL=1" true true)
+        endif ()
+    elseif (MSVC) # Add specific compilation flags for Windows Visual
+
+        set(ACTIVATE_MULTITHREADED_COMPILATION "ON" CACHE BOOL "activate multi-threaded compilation (/MP flag)")
+        if (CMAKE_GENERATOR MATCHES "Visual Studio" AND ACTIVATE_MULTITHREADED_COMPILATION)
+            EnableCompilerFlag("/MP" true true)
+        endif ()
+        
+        # UNICODE SUPPORT
+        EnableCompilerFlag("/D_UNICODE" true true)
+        EnableCompilerFlag("/DUNICODE" true true)
+        # Enable asserts in Debug mode
+        if (CMAKE_BUILD_TYPE MATCHES "Debug")
+            EnableCompilerFlag("/DDEBUGLEVEL=1" true true)
+        endif ()
+    endif ()
+
+    # Remove duplicates compilation flags
+    foreach (flag_var CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
+             CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
+             CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
+             CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
+        if( ${flag_var} )
+            separate_arguments(${flag_var})
+            list(REMOVE_DUPLICATES ${flag_var})
+            string(REPLACE ";" " " ${flag_var} "${${flag_var}}")
+        endif()
+    endforeach ()
+
+    if (MSVC AND ZSTD_USE_STATIC_RUNTIME)
+        foreach (flag_var CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
+                 CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
+                 CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
+                 CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
+            if ( ${flag_var} )
+                string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
+            endif()
+        endforeach ()
+    endif ()
+
+endmacro()
diff --git a/src/zstd/build/cmake/CMakeModules/FindLibLZ4.cmake b/src/zstd/build/cmake/CMakeModules/FindLibLZ4.cmake
new file mode 100644
index 000000000..d0fac06da
--- /dev/null
+++ b/src/zstd/build/cmake/CMakeModules/FindLibLZ4.cmake
@@ -0,0 +1,49 @@
+# Find LibLZ4
+#
+# Find LibLZ4 headers and library
+#
+#   Result Variables
+#
+#   LIBLZ4_FOUND             - True if lz4 is found
+#   LIBLZ4_INCLUDE_DIRS      - lz4 headers directories
+#   LIBLZ4_LIBRARIES         - lz4 libraries
+#   LIBLZ4_VERSION_MAJOR     - The major version of lz4
+#   LIBLZ4_VERSION_MINOR     - The minor version of lz4
+#   LIBLZ4_VERSION_RELEASE   - The release version of lz4
+#   LIBLZ4_VERSION_STRING    - version number string (e.g. 1.8.3)
+#
+#   Hints
+#
+#   Set ``LZ4_ROOT_DIR`` to the directory of lz4.h and lz4 library
+
+set(_LIBLZ4_ROOT_HINTS
+    ENV LZ4_ROOT_DIR)
+
+find_path(  LIBLZ4_INCLUDE_DIR lz4.h
+            HINTS ${_LIBLZ4_ROOT_HINTS})
+find_library(   LIBLZ4_LIBRARY NAMES lz4 liblz4 liblz4_static
+                HINTS ${_LIBLZ4_ROOT_HINTS})
+
+if(LIBLZ4_INCLUDE_DIR)
+    file(STRINGS "${LIBLZ4_INCLUDE_DIR}/lz4.h" LIBLZ4_HEADER_CONTENT REGEX "#define LZ4_VERSION_[A-Z]+ +[0-9]+")
+
+    string(REGEX REPLACE ".*#define LZ4_VERSION_MAJOR +([0-9]+).*" "\\1" LIBLZ4_VERSION_MAJOR "${LIBLZ4_HEADER_CONTENT}")
+    string(REGEX REPLACE ".*#define LZ4_VERSION_MINOR +([0-9]+).*" "\\1" LIBLZ4_VERSION_MINOR "${LIBLZ4_HEADER_CONTENT}")
+    string(REGEX REPLACE ".*#define LZ4_VERSION_RELEASE +([0-9]+).*" "\\1" LIBLZ4_VERSION_RELEASE "${LIBLZ4_HEADER_CONTENT}")
+
+    set(LIBLZ4_VERSION_STRING "${LIBLZ4_VERSION_MAJOR}.${LIBLZ4_VERSION_MINOR}.${LIBLZ4_VERSION_RELEASE}")
+    unset(LIBLZ4_HEADER_CONTENT)
+endif()
+
+include(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(LibLZ4    REQUIRED_VARS   LIBLZ4_INCLUDE_DIR
+                                                            LIBLZ4_LIBRARY
+                                            VERSION_VAR     LIBLZ4_VERSION_STRING
+                                            FAIL_MESSAGE    "Could NOT find LZ4, try to set the paths to lz4.h and lz4 library in environment variable LZ4_ROOT_DIR")
+
+if (LIBLZ4_FOUND)
+    set(LIBLZ4_LIBRARIES ${LIBLZ4_LIBRARY})
+    set(LIBLZ4_INCLUDE_DIRS ${LIBLZ4_INCLUDE_DIR})
+endif ()
+
+mark_as_advanced( LIBLZ4_INCLUDE_DIR LIBLZ4_LIBRARY )
diff --git a/src/zstd/build/cmake/CMakeModules/GetZstdLibraryVersion.cmake b/src/zstd/build/cmake/CMakeModules/GetZstdLibraryVersion.cmake
new file mode 100644
index 000000000..e8ed6064c
--- /dev/null
+++ b/src/zstd/build/cmake/CMakeModules/GetZstdLibraryVersion.cmake
@@ -0,0 +1,10 @@
+function(GetZstdLibraryVersion _header _major _minor _patch)
+    # Read file content
+    file(READ ${_header} CONTENT)
+
+    string(REGEX MATCH ".*define ZSTD_VERSION_MAJOR *([0-9]+).*define ZSTD_VERSION_MINOR *([0-9]+).*define ZSTD_VERSION_RELEASE *([0-9]+)" VERSION_REGEX "${CONTENT}")
+    set(${_major} ${CMAKE_MATCH_1} PARENT_SCOPE)
+    set(${_minor} ${CMAKE_MATCH_2} PARENT_SCOPE)
+    set(${_patch} ${CMAKE_MATCH_3} PARENT_SCOPE)
+endfunction()
+
diff --git a/src/zstd/build/cmake/README.md b/src/zstd/build/cmake/README.md
new file mode 100644
index 000000000..73b30dc77
--- /dev/null
+++ b/src/zstd/build/cmake/README.md
@@ -0,0 +1,104 @@
+# Cmake contributions
+
+Contributions to the cmake build configurations are welcome. Please
+use case sensitivity that matches modern (ie. cmake version 2.6 and above)
+conventions of using lower-case for commands, and upper-case for
+variables.
+
+## How to build
+
+As cmake doesn't support command like `cmake clean`, it's recommended to perform a "out of source build".
+To do this, you can create a new directory and build in it:
+```sh
+cd build/cmake
+mkdir builddir
+cd builddir
+cmake ..
+make
+```
+Then you can clean all cmake caches by simply delete the new directory:
+```sh
+rm -rf build/cmake/builddir
+```
+
+And of course, you can directly build in build/cmake:
+```sh
+cd build/cmake
+cmake
+make
+```
+
+To show cmake build options, you can:
+```sh
+cd build/cmake/builddir
+cmake -LH ..
+```
+
+Bool options can be set to `ON/OFF` with `-D[option]=[ON/OFF]`. You can configure cmake options like this:
+```sh
+cd build/cmake/builddir
+cmake -DZSTD_BUILD_TESTS=ON -DZSTD_LEGACY_SUPPORT=ON ..
+make
+```
+
+### referring
+[Looking for a 'cmake clean' command to clear up CMake output](https://stackoverflow.com/questions/9680420/looking-for-a-cmake-clean-command-to-clear-up-cmake-output)
+
+## CMake Style Recommendations
+
+### Indent all code correctly, i.e. the body of
+
+ * if/else/endif
+ * foreach/endforeach
+ * while/endwhile
+ * macro/endmacro
+ * function/endfunction
+
+Use spaces for indenting, 2, 3 or 4 spaces preferably. Use the same amount of
+spaces for indenting as is used in the rest of the file. Do not use tabs.
+
+### Upper/lower casing
+
+Most important: use consistent upper- or lowercasing within one file !
+
+In general, the all-lowercase style is preferred.
+
+So, this is recommended:
+
+```
+add_executable(foo foo.c)
+```
+
+These forms are discouraged
+
+```
+ADD_EXECUTABLE(bar bar.c)
+Add_Executable(hello hello.c)
+aDd_ExEcUtAbLe(blub blub.c)
+```
+
+### End commands
+To make the code easier to read, use empty commands for endforeach(), endif(),
+endfunction(), endmacro() and endwhile(). Also, use empty else() commands.
+
+For example, do this:
+
+```
+if(FOOVAR)
+   some_command(...)
+else()
+   another_command(...)
+endif()
+```
+
+and not this:
+
+```
+if(BARVAR)
+   some_other_command(...)
+endif(BARVAR)
+```
+
+### Other resources for best practices
+
+https://cmake.org/cmake/help/latest/manual/cmake-developer.7.html#modules
diff --git a/src/zstd/build/cmake/contrib/CMakeLists.txt b/src/zstd/build/cmake/contrib/CMakeLists.txt
new file mode 100644
index 000000000..f7631d08c
--- /dev/null
+++ b/src/zstd/build/cmake/contrib/CMakeLists.txt
@@ -0,0 +1,13 @@
+# ################################################################
+# Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+# All rights reserved.
+#
+# This source code is licensed under both the BSD-style license (found in the
+# LICENSE file in the root directory of this source tree) and the GPLv2 (found
+# in the COPYING file in the root directory of this source tree).
+# ################################################################
+
+project(contrib)
+
+add_subdirectory(pzstd)
+add_subdirectory(gen_html)
diff --git a/src/zstd/build/cmake/contrib/gen_html/CMakeLists.txt b/src/zstd/build/cmake/contrib/gen_html/CMakeLists.txt
new file mode 100644
index 000000000..8fdd61131
--- /dev/null
+++ b/src/zstd/build/cmake/contrib/gen_html/CMakeLists.txt
@@ -0,0 +1,30 @@
+# ################################################################
+# Copyright (c) 2015-present, Yann Collet, Facebook, Inc.
+# All rights reserved.
+#
+# This source code is licensed under both the BSD-style license (found in the
+# LICENSE file in the root directory of this source tree) and the GPLv2 (found
+# in the COPYING file in the root directory of this source tree).
+# ################################################################
+
+project(gen_html)
+include(GetZstdLibraryVersion)
+
+set(CMAKE_INCLUDE_CURRENT_DIR TRUE)
+
+# Define programs directory, where sources and header files are located
+set(LIBRARY_DIR ${ZSTD_SOURCE_DIR}/lib)
+set(PROGRAMS_DIR ${ZSTD_SOURCE_DIR}/programs)
+set(GENHTML_DIR ${ZSTD_SOURCE_DIR}/contrib/gen_html)
+set(GENHTML_BINARY ${PROJECT_BINARY_DIR}/gen_html${CMAKE_EXECUTABLE_SUFFIX})
+include_directories(${PROGRAMS_DIR} ${LIBRARY_DIR} ${LIBRARY_DIR}/common ${GENHTML_DIR})
+
+add_executable(gen_html ${GENHTML_DIR}/gen_html.cpp)
+
+GetZstdLibraryVersion(${LIBRARY_DIR}/zstd.h VMAJOR VMINOR VRELEASE)
+set(LIBVERSION "${VMAJOR}.${VMINOR}.${VRELEASE}")
+add_custom_target(zstd_manual.html ALL
+                  ${GENHTML_BINARY} "${LIBVERSION}" "${LIBRARY_DIR}/zstd.h" "${PROJECT_BINARY_DIR}/zstd_manual.html"
+                  DEPENDS gen_html COMMENT "Update zstd manual")
+
+install(FILES "${PROJECT_BINARY_DIR}/zstd_manual.html" DESTINATION "${CMAKE_INSTALL_DOCDIR}")
diff --git a/src/zstd/build/cmake/contrib/pzstd/CMakeLists.txt b/src/zstd/build/cmake/contrib/pzstd/CMakeLists.txt
new file mode 100644
index 000000000..5c30a91b1
--- /dev/null
+++ b/src/zstd/build/cmake/contrib/pzstd/CMakeLists.txt
@@ -0,0 +1,32 @@
+# ################################################################
+# Copyright (c) 2016-present, Facebook, Inc.
+# All rights reserved.
+#
+# This source code is licensed under both the BSD-style license (found in the
+# LICENSE file in the root directory of this source tree) and the GPLv2 (found
+# in the COPYING file in the root directory of this source tree).
+# ################################################################
+
+project(pzstd)
+
+set(CMAKE_INCLUDE_CURRENT_DIR TRUE)
+
+# Define programs directory, where sources and header files are located
+set(LIBRARY_DIR ${ZSTD_SOURCE_DIR}/lib)
+set(PROGRAMS_DIR ${ZSTD_SOURCE_DIR}/programs)
+set(PZSTD_DIR ${ZSTD_SOURCE_DIR}/contrib/pzstd)
+include_directories(${PROGRAMS_DIR} ${LIBRARY_DIR} ${LIBRARY_DIR}/common ${PZSTD_DIR})
+
+add_executable(pzstd ${PROGRAMS_DIR}/util.c ${PZSTD_DIR}/main.cpp ${PZSTD_DIR}/Options.cpp ${PZSTD_DIR}/Pzstd.cpp ${PZSTD_DIR}/SkippableFrame.cpp)
+set_property(TARGET pzstd APPEND PROPERTY COMPILE_DEFINITIONS "NDEBUG")
+set_property(TARGET pzstd APPEND PROPERTY COMPILE_OPTIONS "-Wno-shadow")
+
+set(THREADS_PREFER_PTHREAD_FLAG ON)
+find_package(Threads REQUIRED)
+if (CMAKE_USE_PTHREADS_INIT)
+    target_link_libraries(pzstd libzstd_shared ${CMAKE_THREAD_LIBS_INIT})
+else()
+    message(SEND_ERROR "ZSTD currently does not support thread libraries other than pthreads")
+endif()
+
+install(TARGETS pzstd RUNTIME DESTINATION "bin")
diff --git a/src/zstd/build/cmake/lib/.gitignore b/src/zstd/build/cmake/lib/.gitignore
new file mode 100644
index 000000000..a4444c8d3
--- /dev/null
+++ b/src/zstd/build/cmake/lib/.gitignore
@@ -0,0 +1,2 @@
+# cmake build artefact
+libzstd.pc
diff --git a/src/zstd/build/cmake/lib/CMakeLists.txt b/src/zstd/build/cmake/lib/CMakeLists.txt
new file mode 100644
index 000000000..666da60c1
--- /dev/null
+++ b/src/zstd/build/cmake/lib/CMakeLists.txt
@@ -0,0 +1,177 @@
+# ################################################################
+# Copyright (c) 2015-present, Yann Collet, Facebook, Inc.
+# All rights reserved.
+#
+# This source code is licensed under both the BSD-style license (found in the
+# LICENSE file in the root directory of this source tree) and the GPLv2 (found
+# in the COPYING file in the root directory of this source tree).
+# ################################################################
+
+project(libzstd)
+
+set(CMAKE_INCLUDE_CURRENT_DIR TRUE)
+option(ZSTD_BUILD_STATIC "BUILD STATIC LIBRARIES" ON)
+option(ZSTD_BUILD_SHARED "BUILD SHARED LIBRARIES" ON)
+
+if(NOT ZSTD_BUILD_SHARED AND NOT ZSTD_BUILD_STATIC)
+    message(SEND_ERROR "You need to build at least one flavor of libzstd")
+endif()
+
+# Define library directory, where sources and header files are located
+include_directories(${LIBRARY_DIR} ${LIBRARY_DIR}/common)
+
+file(GLOB CommonSources ${LIBRARY_DIR}/common/*.c)
+file(GLOB CompressSources ${LIBRARY_DIR}/compress/*.c)
+file(GLOB DecompressSources ${LIBRARY_DIR}/decompress/*.c)
+file(GLOB DictBuilderSources ${LIBRARY_DIR}/dictBuilder/*.c)
+file(GLOB DeprecatedSources ${LIBRARY_DIR}/deprecated/*.c)
+
+set(Sources
+        ${CommonSources}
+        ${CompressSources}
+        ${DecompressSources}
+        ${DictBuilderSources}
+        ${DeprecatedSources})
+
+file(GLOB CommonHeaders ${LIBRARY_DIR}/common/*.h)
+file(GLOB CompressHeaders ${LIBRARY_DIR}/compress/*.h)
+file(GLOB DecompressHeaders ${LIBRARY_DIR}/decompress/*.h)
+file(GLOB DictBuilderHeaders ${LIBRARY_DIR}/dictBuilder/*.h)
+file(GLOB DeprecatedHeaders ${LIBRARY_DIR}/deprecated/*.h)
+
+set(Headers
+        ${LIBRARY_DIR}/zstd.h
+        ${CommonHeaders}
+        ${CompressHeaders}
+        ${DecompressHeaders}
+        ${DictBuilderHeaders}
+        ${DeprecatedHeaders})
+
+if (ZSTD_LEGACY_SUPPORT)
+    set(LIBRARY_LEGACY_DIR ${LIBRARY_DIR}/legacy)
+    include_directories(${LIBRARY_LEGACY_DIR})
+
+    set(Sources ${Sources}
+            ${LIBRARY_LEGACY_DIR}/zstd_v01.c
+            ${LIBRARY_LEGACY_DIR}/zstd_v02.c
+            ${LIBRARY_LEGACY_DIR}/zstd_v03.c
+            ${LIBRARY_LEGACY_DIR}/zstd_v04.c
+            ${LIBRARY_LEGACY_DIR}/zstd_v05.c
+            ${LIBRARY_LEGACY_DIR}/zstd_v06.c
+            ${LIBRARY_LEGACY_DIR}/zstd_v07.c)
+
+    set(Headers ${Headers}
+            ${LIBRARY_LEGACY_DIR}/zstd_legacy.h
+            ${LIBRARY_LEGACY_DIR}/zstd_v01.h
+            ${LIBRARY_LEGACY_DIR}/zstd_v02.h
+            ${LIBRARY_LEGACY_DIR}/zstd_v03.h
+            ${LIBRARY_LEGACY_DIR}/zstd_v04.h
+            ${LIBRARY_LEGACY_DIR}/zstd_v05.h
+            ${LIBRARY_LEGACY_DIR}/zstd_v06.h
+            ${LIBRARY_LEGACY_DIR}/zstd_v07.h)
+endif ()
+
+if (MSVC)
+    set(MSVC_RESOURCE_DIR ${ZSTD_SOURCE_DIR}/build/VS2010/libzstd-dll)
+    set(PlatformDependResources ${MSVC_RESOURCE_DIR}/libzstd-dll.rc)
+endif ()
+
+# Split project to static and shared libraries build
+set(library_targets)
+if (ZSTD_BUILD_SHARED)
+    add_library(libzstd_shared SHARED ${Sources} ${Headers} ${PlatformDependResources})
+    list(APPEND library_targets libzstd_shared)
+    if (ZSTD_MULTITHREAD_SUPPORT)
+        set_property(TARGET libzstd_shared APPEND PROPERTY COMPILE_DEFINITIONS "ZSTD_MULTITHREAD")
+        if (UNIX)
+            target_link_libraries(libzstd_shared ${THREADS_LIBS})
+        endif ()
+    endif()
+endif ()
+if (ZSTD_BUILD_STATIC)
+    add_library(libzstd_static STATIC ${Sources} ${Headers})
+    list(APPEND library_targets libzstd_static)
+    if (ZSTD_MULTITHREAD_SUPPORT)
+        set_property(TARGET libzstd_static APPEND PROPERTY COMPILE_DEFINITIONS "ZSTD_MULTITHREAD")
+        if (UNIX)
+            target_link_libraries(libzstd_static ${THREADS_LIBS})
+        endif ()
+    endif ()
+endif ()
+
+# Add specific compile definitions for MSVC project
+if (MSVC)
+    if (ZSTD_BUILD_SHARED)
+        set_property(TARGET libzstd_shared APPEND PROPERTY COMPILE_DEFINITIONS "ZSTD_DLL_EXPORT=1;ZSTD_HEAPMODE=0;_CONSOLE;_CRT_SECURE_NO_WARNINGS")
+    endif ()
+    if (ZSTD_BUILD_STATIC)
+        set_property(TARGET libzstd_static APPEND PROPERTY COMPILE_DEFINITIONS "ZSTD_HEAPMODE=0;_CRT_SECURE_NO_WARNINGS")
+    endif ()
+endif ()
+
+# With MSVC static library needs to be renamed to avoid conflict with import library
+if (MSVC)
+    set(STATIC_LIBRARY_BASE_NAME zstd_static)
+else ()
+    set(STATIC_LIBRARY_BASE_NAME zstd)
+endif ()
+
+# Define static and shared library names
+if (ZSTD_BUILD_SHARED)
+    set_target_properties(
+            libzstd_shared
+            PROPERTIES
+            OUTPUT_NAME zstd
+            VERSION ${zstd_VERSION_MAJOR}.${zstd_VERSION_MINOR}.${zstd_VERSION_PATCH}
+            SOVERSION ${zstd_VERSION_MAJOR})
+endif ()
+
+if (ZSTD_BUILD_STATIC)
+    set_target_properties(
+            libzstd_static
+            PROPERTIES
+            POSITION_INDEPENDENT_CODE On
+            OUTPUT_NAME ${STATIC_LIBRARY_BASE_NAME})
+endif ()
+
+if (UNIX)
+    # pkg-config
+    set(PREFIX "${CMAKE_INSTALL_PREFIX}")
+    set(LIBDIR "${CMAKE_INSTALL_LIBDIR}")
+    set(INCLUDEDIR "${CMAKE_INSTALL_INCLUDEDIR}")
+    set(VERSION "${zstd_VERSION}")
+    add_custom_target(libzstd.pc ALL
+            ${CMAKE_COMMAND} -DIN="${LIBRARY_DIR}/libzstd.pc.in" -DOUT="libzstd.pc"
+            -DPREFIX="${PREFIX}" -DLIBDIR="${LIBDIR}" -DINCLUDEDIR="${INCLUDEDIR}" -DVERSION="${VERSION}"
+            -P "${CMAKE_CURRENT_SOURCE_DIR}/pkgconfig.cmake"
+            COMMENT "Creating pkg-config file")
+
+    install(FILES "${CMAKE_CURRENT_BINARY_DIR}/libzstd.pc" DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
+endif ()
+
+# install target
+install(FILES
+    "${LIBRARY_DIR}/zstd.h"
+    "${LIBRARY_DIR}/deprecated/zbuff.h"
+    "${LIBRARY_DIR}/dictBuilder/zdict.h"
+    "${LIBRARY_DIR}/dictBuilder/cover.h"
+    "${LIBRARY_DIR}/common/zstd_errors.h"
+    DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")
+
+install(TARGETS ${library_targets}
+    EXPORT zstdExports
+    INCLUDES DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
+    ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+    LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+    )
+
+# uninstall target
+if (NOT TARGET uninstall)
+    configure_file(
+            "${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
+            "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
+            IMMEDIATE @ONLY)
+
+    add_custom_target(uninstall
+            COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
+endif ()
diff --git a/src/zstd/build/cmake/lib/cmake_uninstall.cmake.in b/src/zstd/build/cmake/lib/cmake_uninstall.cmake.in
new file mode 100644
index 000000000..9f1d045dd
--- /dev/null
+++ b/src/zstd/build/cmake/lib/cmake_uninstall.cmake.in
@@ -0,0 +1,22 @@
+ 
+if(NOT EXISTS "@CMAKE_BINARY_DIR@/install_manifest.txt")
+  message(FATAL_ERROR "Cannot find install manifest: @CMAKE_BINARY_DIR@/install_manifest.txt")
+endif()
+
+file(READ "@CMAKE_BINARY_DIR@/install_manifest.txt" files)
+string(REGEX REPLACE "\n" ";" files "${files}")
+foreach(file ${files})
+  message(STATUS "Uninstalling $ENV{DESTDIR}${file}")
+  if(IS_SYMLINK "$ENV{DESTDIR}${file}" OR EXISTS "$ENV{DESTDIR}${file}")
+    exec_program(
+      "@CMAKE_COMMAND@" ARGS "-E remove \"$ENV{DESTDIR}${file}\""
+      OUTPUT_VARIABLE rm_out
+      RETURN_VALUE rm_retval
+      )
+    if(NOT "${rm_retval}" STREQUAL 0)
+      message(FATAL_ERROR "Problem when removing $ENV{DESTDIR}${file}")
+    endif()
+  else()
+    message(STATUS "File $ENV{DESTDIR}${file} does not exist.")
+  endif()
+endforeach()
diff --git a/src/zstd/build/cmake/lib/pkgconfig.cmake b/src/zstd/build/cmake/lib/pkgconfig.cmake
new file mode 100644
index 000000000..8f805a197
--- /dev/null
+++ b/src/zstd/build/cmake/lib/pkgconfig.cmake
@@ -0,0 +1 @@
+configure_file("${IN}" "${OUT}" @ONLY)
diff --git a/src/zstd/build/cmake/programs/.gitignore b/src/zstd/build/cmake/programs/.gitignore
new file mode 100644
index 000000000..ae3a8a356
--- /dev/null
+++ b/src/zstd/build/cmake/programs/.gitignore
@@ -0,0 +1,5 @@
+# produced by make
+zstd
+zstd-frugal
+unzstd
+zstdcat
diff --git a/src/zstd/build/cmake/programs/CMakeLists.txt b/src/zstd/build/cmake/programs/CMakeLists.txt
new file mode 100644
index 000000000..b26e97d0d
--- /dev/null
+++ b/src/zstd/build/cmake/programs/CMakeLists.txt
@@ -0,0 +1,135 @@
+# ################################################################
+# Copyright (c) 2015-present, Yann Collet, Facebook, Inc.
+# All rights reserved.
+#
+# This source code is licensed under both the BSD-style license (found in the
+# LICENSE file in the root directory of this source tree) and the GPLv2 (found
+# in the COPYING file in the root directory of this source tree).
+# ################################################################
+
+project(programs)
+
+set(CMAKE_INCLUDE_CURRENT_DIR TRUE)
+
+# Define programs directory, where sources and header files are located
+set(LIBRARY_DIR ${ZSTD_SOURCE_DIR}/lib)
+set(PROGRAMS_DIR ${ZSTD_SOURCE_DIR}/programs)
+include_directories(${PROGRAMS_DIR} ${LIBRARY_DIR} ${LIBRARY_DIR}/common ${LIBRARY_DIR}/compress ${LIBRARY_DIR}/dictBuilder)
+
+if (ZSTD_LEGACY_SUPPORT)
+    set(PROGRAMS_LEGACY_DIR ${PROGRAMS_DIR}/legacy)
+    include_directories(${PROGRAMS_LEGACY_DIR} ${LIBRARY_DIR}/legacy)
+endif ()
+
+if (ZSTD_PROGRAMS_LINK_SHARED)
+    set(PROGRAMS_ZSTD_LINK_TARGET libzstd_shared)
+else ()
+    set(PROGRAMS_ZSTD_LINK_TARGET libzstd_static)
+endif ()
+
+if (MSVC)
+    set(MSVC_RESOURCE_DIR ${ZSTD_SOURCE_DIR}/build/VS2010/zstd)
+    set(PlatformDependResources ${MSVC_RESOURCE_DIR}/zstd.rc)
+endif ()
+
+add_executable(zstd ${PROGRAMS_DIR}/zstdcli.c ${PROGRAMS_DIR}/util.c ${PROGRAMS_DIR}/timefn.c ${PROGRAMS_DIR}/fileio.c ${PROGRAMS_DIR}/benchfn.c ${PROGRAMS_DIR}/benchzstd.c ${PROGRAMS_DIR}/datagen.c ${PROGRAMS_DIR}/dibio.c ${PlatformDependResources})
+target_link_libraries(zstd ${PROGRAMS_ZSTD_LINK_TARGET})
+if (CMAKE_SYSTEM_NAME MATCHES "(Solaris|SunOS)")
+    target_link_libraries(zstd rt)
+endif ()
+install(TARGETS zstd RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}")
+
+if (UNIX)
+    add_custom_target(zstdcat ALL ${CMAKE_COMMAND} -E create_symlink zstd zstdcat DEPENDS zstd COMMENT "Creating zstdcat symlink")
+    add_custom_target(unzstd ALL ${CMAKE_COMMAND} -E create_symlink zstd unzstd DEPENDS zstd COMMENT "Creating unzstd symlink")
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/zstdcat DESTINATION "${CMAKE_INSTALL_BINDIR}")
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/unzstd DESTINATION "${CMAKE_INSTALL_BINDIR}")
+    install(PROGRAMS ${PROGRAMS_DIR}/zstdgrep DESTINATION "${CMAKE_INSTALL_BINDIR}")
+    install(PROGRAMS ${PROGRAMS_DIR}/zstdless DESTINATION "${CMAKE_INSTALL_BINDIR}")
+
+    add_custom_target(zstd.1 ALL
+        ${CMAKE_COMMAND} -E copy ${PROGRAMS_DIR}/zstd.1 .
+        COMMENT "Copying manpage zstd.1")
+    add_custom_target(zstdgrep.1 ALL
+        ${CMAKE_COMMAND} -E copy ${PROGRAMS_DIR}/zstdgrep.1 .
+        COMMENT "Copying manpage zstdgrep.1")
+    add_custom_target(zstdless.1 ALL
+        ${CMAKE_COMMAND} -E copy ${PROGRAMS_DIR}/zstdless.1 .
+        COMMENT "Copying manpage zstdless.1")
+    add_custom_target(zstdcat.1 ALL ${CMAKE_COMMAND} -E create_symlink zstd.1 zstdcat.1 DEPENDS zstd.1 COMMENT "Creating zstdcat.1 symlink")
+    add_custom_target(unzstd.1 ALL ${CMAKE_COMMAND} -E create_symlink zstd.1 unzstd.1 DEPENDS zstd.1 COMMENT "Creating unzstd.1 symlink")
+
+    # Define MAN_INSTALL_DIR if necessary
+    if (MAN_INSTALL_DIR)
+    else ()
+        set(MAN_INSTALL_DIR ${CMAKE_INSTALL_MANDIR}/man1)
+    endif ()
+
+    install(FILES
+        ${CMAKE_CURRENT_BINARY_DIR}/zstd.1
+        ${CMAKE_CURRENT_BINARY_DIR}/zstdcat.1
+        ${CMAKE_CURRENT_BINARY_DIR}/unzstd.1
+        ${CMAKE_CURRENT_BINARY_DIR}/zstdgrep.1
+        ${CMAKE_CURRENT_BINARY_DIR}/zstdless.1
+        DESTINATION "${MAN_INSTALL_DIR}")
+
+    add_executable(zstd-frugal ${PROGRAMS_DIR}/zstdcli.c ${PROGRAMS_DIR}/util.c ${PROGRAMS_DIR}/timefn.c ${PROGRAMS_DIR}/fileio.c)
+    target_link_libraries(zstd-frugal ${PROGRAMS_ZSTD_LINK_TARGET})
+    set_property(TARGET zstd-frugal APPEND PROPERTY COMPILE_DEFINITIONS "ZSTD_NOBENCH;ZSTD_NODICT")
+endif ()
+
+# Add multi-threading support definitions
+
+if (ZSTD_MULTITHREAD_SUPPORT)
+    set_property(TARGET zstd APPEND PROPERTY COMPILE_DEFINITIONS "ZSTD_MULTITHREAD")
+
+    if (UNIX)
+        target_link_libraries(zstd ${THREADS_LIBS})
+
+        add_custom_target(zstdmt ALL ${CMAKE_COMMAND} -E create_symlink zstd zstdmt DEPENDS zstd COMMENT "Creating zstdmt symlink")
+        install(FILES ${CMAKE_CURRENT_BINARY_DIR}/zstdmt DESTINATION "${CMAKE_INSTALL_BINDIR}")
+    endif ()
+endif ()
+
+option(ZSTD_ZLIB_SUPPORT "ZLIB SUPPORT" OFF)
+option(ZSTD_LZMA_SUPPORT "LZMA SUPPORT" OFF)
+option(ZSTD_LZ4_SUPPORT "LZ4 SUPPORT" OFF)
+
+# Add gzip support
+if (ZSTD_ZLIB_SUPPORT)
+    find_package(ZLIB REQUIRED)
+
+    if (ZLIB_FOUND)
+        include_directories(${ZLIB_INCLUDE_DIRS})
+        target_link_libraries(zstd ${ZLIB_LIBRARIES})
+        set_property(TARGET zstd APPEND PROPERTY COMPILE_DEFINITIONS "ZSTD_GZCOMPRESS;ZSTD_GZDECOMPRESS")
+    else ()
+        message(SEND_ERROR "zlib library is missing")
+    endif ()
+endif ()
+
+# Add lzma support
+if (ZSTD_LZMA_SUPPORT)
+    find_package(LibLZMA REQUIRED)
+
+    if (LIBLZMA_FOUND)
+        include_directories(${LIBLZMA_INCLUDE_DIRS})
+        target_link_libraries(zstd ${LIBLZMA_LIBRARIES})
+        set_property(TARGET zstd APPEND PROPERTY COMPILE_DEFINITIONS "ZSTD_LZMACOMPRESS;ZSTD_LZMADECOMPRESS")
+    else ()
+        message(SEND_ERROR "lzma library is missing")
+    endif ()
+endif ()
+
+# Add lz4 support
+if (ZSTD_LZ4_SUPPORT)
+    find_package(LibLZ4 REQUIRED)
+
+    if (LIBLZ4_FOUND)
+        include_directories(${LIBLZ4_INCLUDE_DIRS})
+        target_link_libraries(zstd ${LIBLZ4_LIBRARIES})
+        set_property(TARGET zstd APPEND PROPERTY COMPILE_DEFINITIONS "ZSTD_LZ4COMPRESS;ZSTD_LZ4DECOMPRESS")
+    else ()
+        message(SEND_ERROR "lz4 library is missing")
+    endif ()
+endif ()
diff --git a/src/zstd/build/cmake/tests/.gitignore b/src/zstd/build/cmake/tests/.gitignore
new file mode 100644
index 000000000..2ab62a3e1
--- /dev/null
+++ b/src/zstd/build/cmake/tests/.gitignore
@@ -0,0 +1,7 @@
+# produced by make
+datagen
+fullbench
+fuzzer
+paramgrill
+zbufftest
+
diff --git a/src/zstd/build/cmake/tests/CMakeLists.txt b/src/zstd/build/cmake/tests/CMakeLists.txt
new file mode 100644
index 000000000..95d60f5f3
--- /dev/null
+++ b/src/zstd/build/cmake/tests/CMakeLists.txt
@@ -0,0 +1,106 @@
+# ################################################################
+# zstd - Makefile
+# Copyright (C) Yann Collet 2014-present
+# All rights reserved.
+#
+# BSD license
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# * Redistributions of source code must retain the above copyright notice, this
+#   list of conditions and the following disclaimer.
+#
+# * 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 COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
+#
+# You can contact the author at :
+#  - zstd homepage : http://www.zstd.net/
+# ################################################################
+
+project(tests)
+
+# name: Cache variable name. The value is expected to be a semicolon-separated
+# list of command line flags
+# default_value: Value to initialize the option with. Can be space separated.
+function(AddTestFlagsOption name default_value doc)
+    string(STRIP "${default_value}" default_value)
+    string(REGEX REPLACE " +" ";" default_value "${default_value}")
+    set(${name} ${default_value} CACHE STRING "${doc}")
+    mark_as_advanced(${name})
+endfunction()
+
+set(CMAKE_INCLUDE_CURRENT_DIR TRUE)
+
+# Define programs directory, where sources and header files are located
+set(LIBRARY_DIR ${ZSTD_SOURCE_DIR}/lib)
+set(PROGRAMS_DIR ${ZSTD_SOURCE_DIR}/programs)
+set(TESTS_DIR ${ZSTD_SOURCE_DIR}/tests)
+include_directories(${TESTS_DIR} ${PROGRAMS_DIR} ${LIBRARY_DIR} ${LIBRARY_DIR}/common ${LIBRARY_DIR}/compress ${LIBRARY_DIR}/dictBuilder)
+
+add_executable(datagen ${PROGRAMS_DIR}/datagen.c ${TESTS_DIR}/datagencli.c)
+target_link_libraries(datagen libzstd_static)
+
+#
+# fullbench
+#
+add_executable(fullbench ${PROGRAMS_DIR}/datagen.c ${PROGRAMS_DIR}/util.c ${PROGRAMS_DIR}/timefn.c ${PROGRAMS_DIR}/benchfn.c ${PROGRAMS_DIR}/benchzstd.c ${TESTS_DIR}/fullbench.c)
+target_link_libraries(fullbench libzstd_static)
+add_test(NAME fullbench COMMAND fullbench)
+
+#
+# fuzzer
+#
+add_executable(fuzzer ${PROGRAMS_DIR}/datagen.c ${PROGRAMS_DIR}/util.c ${PROGRAMS_DIR}/timefn.c ${TESTS_DIR}/fuzzer.c)
+target_link_libraries(fuzzer libzstd_static)
+AddTestFlagsOption(ZSTD_FUZZER_FLAGS "$ENV{FUZZERTEST} $ENV{FUZZER_FLAGS}"
+    "Semicolon-separated list of flags to pass to the fuzzer test (see `fuzzer -h` for usage)")
+add_test(NAME fuzzer COMMAND fuzzer ${ZSTD_FUZZER_FLAGS})
+# Disable the timeout since the run time is too long for the default timeout of
+# 1500 seconds and varies considerably between low-end and high-end CPUs.
+# set_tests_properties(fuzzer PROPERTIES TIMEOUT 0)
+
+#
+# zstreamtest
+#
+add_executable(zstreamtest ${PROGRAMS_DIR}/datagen.c ${PROGRAMS_DIR}/util.c ${PROGRAMS_DIR}/timefn.c ${TESTS_DIR}/seqgen.c ${TESTS_DIR}/zstreamtest.c)
+target_link_libraries(zstreamtest libzstd_static)
+AddTestFlagsOption(ZSTD_ZSTREAM_FLAGS "$ENV{ZSTREAM_TESTTIME} $ENV{FUZZER_FLAGS}"
+    "Semicolon-separated list of flags to pass to the zstreamtest test (see `zstreamtest -h` for usage)")
+add_test(NAME zstreamtest COMMAND zstreamtest ${ZSTD_ZSTREAM_FLAGS})
+
+#
+# playTests.sh
+#
+AddTestFlagsOption(ZSTD_PLAYTESTS_FLAGS "--test-large-data"
+    "Semicolon-separated list of flags to pass to the playTests.sh test")
+add_test(NAME playTests COMMAND sh -c "${TESTS_DIR}/playTests.sh" ${ZSTD_PLAYTESTS_FLAGS})
+if (ZSTD_BUILD_PROGRAMS)
+    set_property(TEST playTests APPEND PROPERTY ENVIRONMENT
+        "ZSTD_BIN=$<TARGET_FILE:zstd>"
+        "DATAGEN_BIN=$<TARGET_FILE:datagen>"
+        )
+else()
+    message(STATUS "Disabling playTests.sh test because ZSTD_BUILD_PROGRAMS is not enabled")
+    set_tests_properties(playTests PROPERTIES DISABLED YES)
+endif()
+
+# Label the "Medium" set of tests (see TESTING.md)
+set_property(TEST fuzzer zstreamtest playTests APPEND PROPERTY LABELS Medium)
+
+if (UNIX)
+    add_executable(paramgrill ${PROGRAMS_DIR}/benchfn.c ${PROGRAMS_DIR}/benchzstd.c ${PROGRAMS_DIR}/datagen.c ${PROGRAMS_DIR}/util.c ${PROGRAMS_DIR}/timefn.c ${TESTS_DIR}/paramgrill.c)
+    target_link_libraries(paramgrill libzstd_static m) #m is math library
+endif ()
diff --git a/src/zstd/build/cmake/zstdConfig.cmake b/src/zstd/build/cmake/zstdConfig.cmake
new file mode 100644
index 000000000..ebbfcc38f
--- /dev/null
+++ b/src/zstd/build/cmake/zstdConfig.cmake
@@ -0,0 +1 @@
+include("${CMAKE_CURRENT_LIST_DIR}/zstdTargets.cmake")
diff --git a/src/zstd/build/meson/GetZstdLibraryVersion.py b/src/zstd/build/meson/GetZstdLibraryVersion.py
new file mode 100644
index 000000000..461af5f9c
--- /dev/null
+++ b/src/zstd/build/meson/GetZstdLibraryVersion.py
@@ -0,0 +1,39 @@
+#!/usr/bin/env python3
+# #############################################################################
+# Copyright (c) 2018-present    lzutao <taolzu(at)gmail.com>
+# All rights reserved.
+#
+# This source code is licensed under both the BSD-style license (found in the
+# LICENSE file in the root directory of this source tree) and the GPLv2 (found
+# in the COPYING file in the root directory of this source tree).
+# #############################################################################
+import re
+
+
+def find_version_tuple(filepath):
+  version_file_data = None
+  with open(filepath) as fd:
+    version_file_data = fd.read()
+
+  patterns = r"""#\s*define\s+ZSTD_VERSION_MAJOR\s+([0-9]+)
+#\s*define\s+ZSTD_VERSION_MINOR\s+([0-9]+)
+#\s*define\s+ZSTD_VERSION_RELEASE\s+([0-9]+)
+"""
+  regex = re.compile(patterns, re.MULTILINE)
+  version_match = regex.search(version_file_data)
+  if version_match:
+    return version_match.groups()
+  raise Exception("Unable to find version string")
+
+
+def main():
+  import argparse
+  parser = argparse.ArgumentParser(description='Print zstd version from lib/zstd.h')
+  parser.add_argument('file', help='path to lib/zstd.h')
+  args = parser.parse_args()
+  version_tuple = find_version_tuple(args.file)
+  print('.'.join(version_tuple))
+
+
+if __name__ == '__main__':
+  main()
diff --git a/src/zstd/build/meson/InstallSymlink.py b/src/zstd/build/meson/InstallSymlink.py
new file mode 100644
index 000000000..3f2998c64
--- /dev/null
+++ b/src/zstd/build/meson/InstallSymlink.py
@@ -0,0 +1,55 @@
+#!/usr/bin/env python3
+# #############################################################################
+# Copyright (c) 2018-present  lzutao <taolzu(at)gmail.com>
+# All rights reserved.
+#
+# This source code is licensed under both the BSD-style license (found in the
+# LICENSE file in the root directory of this source tree) and the GPLv2 (found
+# in the COPYING file in the root directory of this source tree).
+# #############################################################################
+# This file should be synced with https://github.com/lzutao/meson-symlink
+
+import os
+import pathlib  # since Python 3.4
+
+
+def install_symlink(src, dst, install_dir, dst_is_dir=False, dir_mode=0o777):
+  if not install_dir.exists():
+    install_dir.mkdir(mode=dir_mode, parents=True, exist_ok=True)
+  if not install_dir.is_dir():
+    raise NotADirectoryError(install_dir)
+
+  new_dst = install_dir.joinpath(dst)
+  if new_dst.is_symlink() and os.readlink(new_dst) == src:
+    print('File exists: {!r} -> {!r}'.format(new_dst, src))
+    return
+  print('Installing symlink {!r} -> {!r}'.format(new_dst, src))
+  new_dst.symlink_to(src, target_is_directory=dst_is_dir)
+
+
+def main():
+  import argparse
+  parser = argparse.ArgumentParser(description='Install a symlink',
+      usage='{0} [-h] [-d] [-m MODE] source dest install_dir\n\n'
+            'example:\n'
+            '        {0} dash sh /bin'.format(pathlib.Path(__file__).name))
+  parser.add_argument('source', help='target to link')
+  parser.add_argument('dest', help='link name')
+  parser.add_argument('install_dir', help='installation directory')
+  parser.add_argument('-d', '--isdir',
+      action='store_true',
+      help='dest is a directory')
+  parser.add_argument('-m', '--mode',
+      help='directory mode on creating if not exist',
+      default='0o755')
+  args = parser.parse_args()
+
+  dir_mode = int(args.mode, 8)
+
+  meson_destdir = os.environ.get('MESON_INSTALL_DESTDIR_PREFIX', default='')
+  install_dir = pathlib.Path(meson_destdir, args.install_dir)
+  install_symlink(args.source, args.dest, install_dir, args.isdir, dir_mode)
+
+
+if __name__ == '__main__':
+  main()
diff --git a/src/zstd/build/meson/README.md b/src/zstd/build/meson/README.md
new file mode 100644
index 000000000..d393a063f
--- /dev/null
+++ b/src/zstd/build/meson/README.md
@@ -0,0 +1,38 @@
+Meson build system for zstandard
+================================
+
+Meson is a build system designed to optimize programmer productivity.
+It aims to do this by providing simple, out-of-the-box support for
+modern software development tools and practices, such as unit tests,
+coverage reports, Valgrind, CCache and the like.
+
+This Meson build system is provided with no guarantee and maintained
+by Dima Krasner \<dima@dimakrasner.com\>.
+
+It outputs one `libzstd`, either shared or static, depending on
+`default_library` option.
+
+## How to build
+
+`cd` to this meson directory (`build/meson`)
+
+```sh
+meson setup -Dbin_programs=true -Dbin_contrib=true builddir
+cd builddir
+ninja             # to build
+ninja install     # to install
+```
+
+You might want to install it in staging directory:
+
+```sh
+DESTDIR=./staging ninja install
+```
+
+To configure build options, use:
+
+```sh
+meson configure
+```
+
+See [man meson(1)](https://manpages.debian.org/testing/meson/meson.1.en.html).
diff --git a/src/zstd/build/meson/contrib/gen_html/meson.build b/src/zstd/build/meson/contrib/gen_html/meson.build
new file mode 100644
index 000000000..3f302538d
--- /dev/null
+++ b/src/zstd/build/meson/contrib/gen_html/meson.build
@@ -0,0 +1,30 @@
+# #############################################################################
+# Copyright (c) 2018-present    lzutao <taolzu(at)gmail.com>
+# All rights reserved.
+#
+# This source code is licensed under both the BSD-style license (found in the
+# LICENSE file in the root directory of this source tree) and the GPLv2 (found
+# in the COPYING file in the root directory of this source tree).
+# #############################################################################
+
+zstd_rootdir = '../../../..'
+
+gen_html_includes = include_directories(join_paths(zstd_rootdir, 'programs'),
+  join_paths(zstd_rootdir, 'lib'),
+  join_paths(zstd_rootdir, 'lib/common'),
+  join_paths(zstd_rootdir, 'contrib/gen_html'))
+
+gen_html = executable('gen_html',
+  join_paths(zstd_rootdir, 'contrib/gen_html/gen_html.cpp'),
+  include_directories: gen_html_includes,
+  native: true,
+  install: false)
+
+# Update zstd manual
+zstd_manual_html = custom_target('zstd_manual.html',
+  output : 'zstd_manual.html',
+  command : [gen_html,
+    zstd_version,
+    join_paths(meson.current_source_dir(), zstd_rootdir, 'lib/zstd.h'),
+    '@OUTPUT@'],
+  install : false)
diff --git a/src/zstd/build/meson/contrib/meson.build b/src/zstd/build/meson/contrib/meson.build
new file mode 100644
index 000000000..7f6d03a4c
--- /dev/null
+++ b/src/zstd/build/meson/contrib/meson.build
@@ -0,0 +1,12 @@
+# #############################################################################
+# Copyright (c) 2018-present     Dima Krasner <dima@dimakrasner.com>
+#                                lzutao <taolzu(at)gmail.com>
+# All rights reserved.
+#
+# This source code is licensed under both the BSD-style license (found in the
+# LICENSE file in the root directory of this source tree) and the GPLv2 (found
+# in the COPYING file in the root directory of this source tree).
+# #############################################################################
+
+subdir('pzstd')
+subdir('gen_html')
diff --git a/src/zstd/build/meson/contrib/pzstd/meson.build b/src/zstd/build/meson/contrib/pzstd/meson.build
new file mode 100644
index 000000000..8f3822fd7
--- /dev/null
+++ b/src/zstd/build/meson/contrib/pzstd/meson.build
@@ -0,0 +1,24 @@
+# #############################################################################
+# Copyright (c) 2018-present    lzutao <taolzu(at)gmail.com>
+# All rights reserved.
+#
+# This source code is licensed under both the BSD-style license (found in the
+# LICENSE file in the root directory of this source tree) and the GPLv2 (found
+# in the COPYING file in the root directory of this source tree).
+# #############################################################################
+
+zstd_rootdir = '../../../..'
+
+pzstd_includes = include_directories(join_paths(zstd_rootdir, 'programs'),
+  join_paths(zstd_rootdir, 'contrib/pzstd'))
+pzstd_sources = [join_paths(zstd_rootdir, 'programs/util.c'),
+  join_paths(zstd_rootdir, 'contrib/pzstd/main.cpp'),
+  join_paths(zstd_rootdir, 'contrib/pzstd/Options.cpp'),
+  join_paths(zstd_rootdir, 'contrib/pzstd/Pzstd.cpp'),
+  join_paths(zstd_rootdir, 'contrib/pzstd/SkippableFrame.cpp')]
+pzstd = executable('pzstd',
+  pzstd_sources,
+  cpp_args: [ '-DNDEBUG', '-Wno-shadow', '-pedantic' ],
+  include_directories: pzstd_includes,
+  dependencies: [ libzstd_dep, thread_dep ],
+  install: true)
diff --git a/src/zstd/build/meson/lib/meson.build b/src/zstd/build/meson/lib/meson.build
new file mode 100644
index 000000000..6fb3df8e9
--- /dev/null
+++ b/src/zstd/build/meson/lib/meson.build
@@ -0,0 +1,132 @@
+# #############################################################################
+# Copyright (c) 2018-present     Dima Krasner <dima@dimakrasner.com>
+#                                lzutao <taolzu(at)gmail.com>
+# All rights reserved.
+#
+# This source code is licensed under both the BSD-style license (found in the
+# LICENSE file in the root directory of this source tree) and the GPLv2 (found
+# in the COPYING file in the root directory of this source tree).
+# #############################################################################
+
+zstd_rootdir = '../../..'
+
+libzstd_includes = [include_directories(join_paths(zstd_rootdir,'lib'),
+  join_paths(zstd_rootdir, 'lib/common'),
+  join_paths(zstd_rootdir, 'lib/compress'),
+  join_paths(zstd_rootdir, 'lib/decompress'),
+  join_paths(zstd_rootdir, 'lib/dictBuilder'),
+  join_paths(zstd_rootdir, 'lib/deprecated'))]
+
+libzstd_sources = [join_paths(zstd_rootdir, 'lib/common/entropy_common.c'),
+  join_paths(zstd_rootdir, 'lib/common/fse_decompress.c'),
+  join_paths(zstd_rootdir, 'lib/common/threading.c'),
+  join_paths(zstd_rootdir, 'lib/common/pool.c'),
+  join_paths(zstd_rootdir, 'lib/common/zstd_common.c'),
+  join_paths(zstd_rootdir, 'lib/common/error_private.c'),
+  join_paths(zstd_rootdir, 'lib/common/xxhash.c'),
+  join_paths(zstd_rootdir, 'lib/compress/hist.c'),
+  join_paths(zstd_rootdir, 'lib/compress/fse_compress.c'),
+  join_paths(zstd_rootdir, 'lib/compress/huf_compress.c'),
+  join_paths(zstd_rootdir, 'lib/compress/zstd_compress.c'),
+  join_paths(zstd_rootdir, 'lib/compress/zstd_compress_literals.c'),
+  join_paths(zstd_rootdir, 'lib/compress/zstd_compress_sequences.c'),
+  join_paths(zstd_rootdir, 'lib/compress/zstd_compress_superblock.c'),
+  join_paths(zstd_rootdir, 'lib/compress/zstdmt_compress.c'),
+  join_paths(zstd_rootdir, 'lib/compress/zstd_fast.c'),
+  join_paths(zstd_rootdir, 'lib/compress/zstd_double_fast.c'),
+  join_paths(zstd_rootdir, 'lib/compress/zstd_lazy.c'),
+  join_paths(zstd_rootdir, 'lib/compress/zstd_opt.c'),
+  join_paths(zstd_rootdir, 'lib/compress/zstd_ldm.c'),
+  join_paths(zstd_rootdir, 'lib/decompress/huf_decompress.c'),
+  join_paths(zstd_rootdir, 'lib/decompress/zstd_decompress.c'),
+  join_paths(zstd_rootdir, 'lib/decompress/zstd_decompress_block.c'),
+  join_paths(zstd_rootdir, 'lib/decompress/zstd_ddict.c'),
+  join_paths(zstd_rootdir, 'lib/dictBuilder/cover.c'),
+  join_paths(zstd_rootdir, 'lib/dictBuilder/fastcover.c'),
+  join_paths(zstd_rootdir, 'lib/dictBuilder/divsufsort.c'),
+  join_paths(zstd_rootdir, 'lib/dictBuilder/zdict.c'),
+  join_paths(zstd_rootdir, 'lib/deprecated/zbuff_common.c'),
+  join_paths(zstd_rootdir, 'lib/deprecated/zbuff_compress.c'),
+  join_paths(zstd_rootdir, 'lib/deprecated/zbuff_decompress.c')]
+
+# Explicit define legacy support
+add_project_arguments('-DZSTD_LEGACY_SUPPORT=@0@'.format(legacy_level),
+  language: 'c')
+
+if legacy_level == 0
+  message('Legacy support: DISABLED')
+else
+  # See ZSTD_LEGACY_SUPPORT of lib/README.md
+  message('Enable legacy support back to version 0.@0@'.format(legacy_level))
+
+  libzstd_includes += [ include_directories(join_paths(zstd_rootdir, 'lib/legacy')) ]
+  foreach i : [1, 2, 3, 4, 5, 6, 7]
+    if legacy_level <= i
+      libzstd_sources += join_paths(zstd_rootdir, 'lib/legacy/zstd_v0@0@.c'.format(i))
+    endif
+  endforeach
+endif
+
+libzstd_deps = []
+if use_multi_thread
+  message('Enable multi-threading support')
+  add_project_arguments('-DZSTD_MULTITHREAD', language: 'c')
+  libzstd_deps = [ thread_dep ]
+endif
+
+libzstd_c_args = []
+if cc_id == compiler_msvc
+  if default_library_type != 'static'
+    libzstd_sources += [windows_mod.compile_resources(
+      join_paths(zstd_rootdir, 'build/VS2010/libzstd-dll/libzstd-dll.rc'))]
+    libzstd_c_args += ['-DZSTD_DLL_EXPORT=1',
+      '-DZSTD_HEAPMODE=0',
+      '-D_CONSOLE',
+      '-D_CRT_SECURE_NO_WARNINGS']
+  else
+    libzstd_c_args += ['-DZSTD_HEAPMODE=0',
+      '-D_CRT_SECURE_NO_WARNINGS']
+  endif
+endif
+
+mingw_ansi_stdio_flags = []
+if host_machine_os == os_windows and cc_id == compiler_gcc
+  mingw_ansi_stdio_flags = [ '-D__USE_MINGW_ANSI_STDIO' ]
+endif
+libzstd_c_args += mingw_ansi_stdio_flags
+
+libzstd_debug_cflags = []
+if use_debug
+  libzstd_c_args += '-DDEBUGLEVEL=@0@'.format(debug_level)
+  if cc_id == compiler_gcc or cc_id == compiler_clang
+    libzstd_debug_cflags = ['-Wstrict-aliasing=1', '-Wswitch-enum',
+      '-Wdeclaration-after-statement', '-Wstrict-prototypes',
+      '-Wundef', '-Wpointer-arith', '-Wvla',
+      '-Wformat=2', '-Winit-self', '-Wfloat-equal', '-Wwrite-strings',
+      '-Wredundant-decls', '-Wmissing-prototypes', '-Wc++-compat']
+  endif
+endif
+libzstd_c_args += cc.get_supported_arguments(libzstd_debug_cflags)
+
+libzstd = library('zstd',
+  libzstd_sources,
+  include_directories: libzstd_includes,
+  c_args: libzstd_c_args,
+  dependencies: libzstd_deps,
+  install: true,
+  version: zstd_libversion)
+
+libzstd_dep = declare_dependency(link_with: libzstd,
+  include_directories: libzstd_includes)
+
+pkgconfig.generate(libzstd,
+  name: 'libzstd',
+  filebase: 'libzstd',
+  description: 'fast lossless compression algorithm library',
+  version: zstd_libversion,
+  url: 'http://www.zstd.net/')
+
+install_headers(join_paths(zstd_rootdir, 'lib/zstd.h'),
+  join_paths(zstd_rootdir, 'lib/deprecated/zbuff.h'),
+  join_paths(zstd_rootdir, 'lib/dictBuilder/zdict.h'),
+  join_paths(zstd_rootdir, 'lib/common/zstd_errors.h'))
diff --git a/src/zstd/build/meson/meson.build b/src/zstd/build/meson/meson.build
new file mode 100644
index 000000000..970cf3c92
--- /dev/null
+++ b/src/zstd/build/meson/meson.build
@@ -0,0 +1,147 @@
+# #############################################################################
+# Copyright (c) 2018-present     Dima Krasner <dima@dimakrasner.com>
+#                                lzutao <taolzu(at)gmail.com>
+# All rights reserved.
+#
+# This source code is licensed under both the BSD-style license (found in the
+# LICENSE file in the root directory of this source tree) and the GPLv2 (found
+# in the COPYING file in the root directory of this source tree).
+# #############################################################################
+
+project('zstd',
+  ['c', 'cpp'],
+  license: ['BSD', 'GPLv2'],
+  default_options : [
+    'c_std=gnu99',
+    'cpp_std=c++11',
+    'buildtype=release'
+  ],
+  version: 'DUMMY',
+  meson_version: '>=0.47.0')
+
+cc = meson.get_compiler('c')
+cxx = meson.get_compiler('cpp')
+pkgconfig = import('pkgconfig')
+python3 = import('python').find_installation()
+windows_mod = import('windows')
+
+host_machine_os = host_machine.system()
+os_windows = 'windows'
+os_linux = 'linux'
+os_darwin = 'darwin'
+os_freebsd = 'freebsd'
+os_sun = 'sunos'
+
+cc_id = cc.get_id()
+compiler_gcc = 'gcc'
+compiler_clang = 'clang'
+compiler_msvc = 'msvc'
+
+zstd_version = meson.project_version()
+
+zstd_h_file = join_paths(meson.current_source_dir(), '../../lib/zstd.h')
+GetZstdLibraryVersion_py = files('GetZstdLibraryVersion.py')
+r = run_command(python3, GetZstdLibraryVersion_py, zstd_h_file)
+if r.returncode() == 0
+  zstd_version = r.stdout().strip()
+  message('Project version is now: @0@'.format(zstd_version))
+else
+  error('Cannot find project version in @0@'.format(zstd_h_file))
+endif
+
+zstd_libversion = zstd_version
+
+# =============================================================================
+# Installation directories
+# =============================================================================
+
+zstd_prefix = get_option('prefix')
+zstd_bindir = get_option('bindir')
+zstd_datadir = get_option('datadir')
+zstd_mandir = get_option('mandir')
+zstd_docdir = join_paths(zstd_datadir, 'doc', meson.project_name())
+
+# =============================================================================
+# Project options
+# =============================================================================
+
+# Built-in options
+use_debug = get_option('debug')
+buildtype = get_option('buildtype')
+default_library_type = get_option('default_library')
+
+# Custom options
+debug_level = get_option('debug_level')
+legacy_level = get_option('legacy_level')
+use_backtrace = get_option('backtrace')
+use_static_runtime = get_option('static_runtime')
+
+bin_programs = get_option('bin_programs')
+bin_contrib = get_option('bin_contrib')
+bin_tests = get_option('bin_tests')
+
+feature_multi_thread = get_option('multi_thread')
+feature_zlib = get_option('zlib')
+feature_lzma = get_option('lzma')
+feature_lz4 = get_option('lz4')
+
+# =============================================================================
+# Dependencies
+# =============================================================================
+
+libm_dep = cc.find_library('m', required: bin_tests)
+thread_dep = dependency('threads', required: feature_multi_thread)
+use_multi_thread = thread_dep.found()
+# Arguments in dependency should be equivalent to those passed to pkg-config
+zlib_dep = dependency('zlib', required: feature_zlib)
+use_zlib = zlib_dep.found()
+lzma_dep = dependency('liblzma', required: feature_lzma)
+use_lzma = lzma_dep.found()
+lz4_dep = dependency('liblz4', required: feature_lz4)
+use_lz4 = lz4_dep.found()
+
+# =============================================================================
+# Compiler flags
+# =============================================================================
+
+add_project_arguments('-DXXH_NAMESPACE=ZSTD_', language: ['c'])
+
+if [compiler_gcc, compiler_clang].contains(cc_id)
+  common_warning_flags = [ '-Wextra', '-Wundef', '-Wshadow', '-Wcast-align', '-Wcast-qual' ]
+  if cc_id == compiler_clang
+    # Should use Meson's own --werror build option
+    #common_warning_flags += '-Werror'
+    common_warning_flags += ['-Wconversion', '-Wno-sign-conversion', '-Wdocumentation']
+  endif
+  cc_compile_flags = cc.get_supported_arguments(common_warning_flags + ['-Wstrict-prototypes'])
+  cxx_compile_flags = cxx.get_supported_arguments(common_warning_flags)
+  add_project_arguments(cc_compile_flags, language : 'c')
+  add_project_arguments(cxx_compile_flags, language : 'cpp')
+elif cc_id == compiler_msvc
+  msvc_compile_flags = [ '/D_UNICODE', '/DUNICODE' ]
+  if use_multi_thread
+    msvc_compile_flags += '/MP'
+  endif
+  if use_static_runtime
+    msvc_compile_flags += '/MT'
+  endif
+  add_project_arguments(msvc_compile_flags, language: ['c', 'cpp'])
+endif
+
+# =============================================================================
+# Subdirs
+# =============================================================================
+
+subdir('lib')
+
+if bin_programs
+  subdir('programs')
+endif
+
+if bin_tests
+  subdir('tests')
+endif
+
+if bin_contrib
+  subdir('contrib')
+endif
diff --git a/src/zstd/build/meson/meson_options.txt b/src/zstd/build/meson/meson_options.txt
new file mode 100644
index 000000000..90a81c539
--- /dev/null
+++ b/src/zstd/build/meson/meson_options.txt
@@ -0,0 +1,36 @@
+# #############################################################################
+# Copyright (c) 2018-present     Dima Krasner <dima@dimakrasner.com>
+#                                lzutao <taolzu(at)gmail.com>
+# All rights reserved.
+#
+# This source code is licensed under both the BSD-style license (found in the
+# LICENSE file in the root directory of this source tree) and the GPLv2 (found
+# in the COPYING file in the root directory of this source tree).
+# #############################################################################
+
+# Read guidelines from https://wiki.gnome.org/Initiatives/GnomeGoals/MesonPorting
+
+option('legacy_level', type: 'integer', min: 0, max: 7, value: '5',
+  description: 'Support any legacy format: 7 to 1 for v0.7+ to v0.1+')
+option('debug_level', type: 'integer', min: 0, max: 9, value: 1,
+  description: 'Enable run-time debug. See lib/common/debug.h')
+option('backtrace', type: 'boolean', value: false,
+  description: 'Display a stack backtrace when execution generates a runtime exception')
+option('static_runtime', type: 'boolean', value: false,
+  description: 'Link to static run-time libraries on MSVC')
+
+option('bin_programs', type: 'boolean', value: true,
+  description: 'Enable programs build')
+option('bin_tests', type: 'boolean', value: false,
+  description: 'Enable tests build')
+option('bin_contrib', type: 'boolean', value: false,
+  description: 'Enable contrib build')
+
+option('multi_thread', type: 'feature', value: 'enabled',
+  description: 'Enable multi-threading when pthread is detected')
+option('zlib', type: 'feature', value: 'auto',
+  description: 'Enable zlib support')
+option('lzma', type: 'feature', value: 'auto',
+  description: 'Enable lzma support')
+option('lz4', type: 'feature', value: 'auto',
+  description: 'Enable lz4 support')
diff --git a/src/zstd/build/meson/programs/meson.build b/src/zstd/build/meson/programs/meson.build
new file mode 100644
index 000000000..363818f9d
--- /dev/null
+++ b/src/zstd/build/meson/programs/meson.build
@@ -0,0 +1,104 @@
+# #############################################################################
+# Copyright (c) 2018-present     Dima Krasner <dima@dimakrasner.com>
+#                                lzutao <taolzu(at)gmail.com>
+# All rights reserved.
+#
+# This source code is licensed under both the BSD-style license (found in the
+# LICENSE file in the root directory of this source tree) and the GPLv2 (found
+# in the COPYING file in the root directory of this source tree).
+# #############################################################################
+
+zstd_rootdir = '../../..'
+
+zstd_programs_sources = [join_paths(zstd_rootdir, 'programs/zstdcli.c'),
+  join_paths(zstd_rootdir, 'programs/util.c'),
+  join_paths(zstd_rootdir, 'programs/timefn.c'),
+  join_paths(zstd_rootdir, 'programs/fileio.c'),
+  join_paths(zstd_rootdir, 'programs/benchfn.c'),
+  join_paths(zstd_rootdir, 'programs/benchzstd.c'),
+  join_paths(zstd_rootdir, 'programs/datagen.c'),
+  join_paths(zstd_rootdir, 'programs/dibio.c')]
+
+zstd_c_args = libzstd_debug_cflags
+if use_multi_thread
+  zstd_c_args += [ '-DZSTD_MULTITHREAD' ]
+endif
+
+zstd_deps = [ libzstd_dep ]
+if use_zlib
+  zstd_deps += [ zlib_dep ]
+  zstd_c_args += [ '-DZSTD_GZCOMPRESS', '-DZSTD_GZDECOMPRESS' ]
+endif
+
+if use_lzma
+  zstd_deps += [ lzma_dep ]
+  zstd_c_args += [ '-DZSTD_LZMACOMPRESS', '-DZSTD_LZMADECOMPRESS' ]
+endif
+
+if use_lz4
+  zstd_deps += [ lz4_dep ]
+  zstd_c_args += [ '-DZSTD_LZ4COMPRESS', '-DZSTD_LZ4DECOMPRESS' ]
+endif
+
+export_dynamic_on_windows = false
+# explicit backtrace enable/disable for Linux & Darwin
+if not use_backtrace
+  zstd_c_args += '-DBACKTRACE_ENABLE=0'
+elif use_debug and host_machine_os == os_windows  # MinGW target
+  zstd_c_args += '-DBACKTRACE_ENABLE=1'
+  export_dynamic_on_windows = true
+endif
+
+if cc_id == compiler_msvc
+  if default_library_type != 'static'
+    zstd_programs_sources += [windows_mod.compile_resources(
+      join_paths(zstd_rootdir, 'build/VS2010/zstd/zstd.rc'))]
+  endif
+endif
+
+zstd = executable('zstd',
+  zstd_programs_sources,
+  c_args: zstd_c_args,
+  dependencies: zstd_deps,
+  export_dynamic: export_dynamic_on_windows, # Since Meson 0.45.0
+  install: true)
+
+zstd_frugal_sources = [join_paths(zstd_rootdir, 'programs/zstdcli.c'),
+  join_paths(zstd_rootdir, 'programs/timefn.c'),
+  join_paths(zstd_rootdir, 'programs/util.c'),
+  join_paths(zstd_rootdir, 'programs/fileio.c')]
+
+# Minimal target, with only zstd compression and decompression.
+# No bench. No legacy.
+executable('zstd-frugal',
+  zstd_frugal_sources,
+  dependencies: libzstd_dep,
+  c_args: [ '-DZSTD_NOBENCH', '-DZSTD_NODICT' ],
+  install: true)
+
+install_data(join_paths(zstd_rootdir, 'programs/zstdgrep'),
+  join_paths(zstd_rootdir, 'programs/zstdless'),
+  install_dir: zstd_bindir)
+
+# =============================================================================
+# Programs and manpages installing
+# =============================================================================
+
+install_man(join_paths(zstd_rootdir, 'programs/zstd.1'),
+  join_paths(zstd_rootdir, 'programs/zstdgrep.1'),
+  join_paths(zstd_rootdir, 'programs/zstdless.1'))
+
+InstallSymlink_py = '../InstallSymlink.py'
+zstd_man1_dir = join_paths(zstd_mandir, 'man1')
+bin_EXT = host_machine_os == os_windows ? '.exe' : ''
+man1_EXT = meson.version().version_compare('>=0.49.0') ? '.1' : '.1.gz'
+
+foreach f : ['zstdcat', 'unzstd']
+  meson.add_install_script(InstallSymlink_py, 'zstd' + bin_EXT, f + bin_EXT, zstd_bindir)
+  meson.add_install_script(InstallSymlink_py, 'zstd' + man1_EXT, f + man1_EXT, zstd_man1_dir)
+endforeach
+
+if use_multi_thread
+  meson.add_install_script(InstallSymlink_py, 'zstd' + bin_EXT, 'zstdmt' + bin_EXT, zstd_bindir)
+  meson.add_install_script(InstallSymlink_py, 'zstd' + man1_EXT, 'zstdmt' + man1_EXT, zstd_man1_dir)
+endif
diff --git a/src/zstd/build/meson/tests/meson.build b/src/zstd/build/meson/tests/meson.build
new file mode 100644
index 000000000..0587f9a70
--- /dev/null
+++ b/src/zstd/build/meson/tests/meson.build
@@ -0,0 +1,206 @@
+# #############################################################################
+# Copyright (c) 2018-present     Dima Krasner <dima@dimakrasner.com>
+#                                lzutao <taolzu(at)gmail.com>
+# All rights reserved.
+#
+# This source code is licensed under both the BSD-style license (found in the
+# LICENSE file in the root directory of this source tree) and the GPLv2 (found
+# in the COPYING file in the root directory of this source tree).
+# #############################################################################
+
+zstd_rootdir = '../../..'
+
+tests_supported_oses = [os_linux, 'gnu/kfreebsd', os_darwin, 'gnu', 'openbsd',
+  os_freebsd, 'netbsd', 'dragonfly', os_sun]
+
+# =============================================================================
+# Test flags
+# =============================================================================
+
+FUZZER_FLAGS = ['--no-big-tests']
+FUZZERTEST = '-T200s'
+ZSTREAM_TESTTIME = '-T90s'
+DECODECORPUS_TESTTIME = '-T30'
+ZSTDRTTEST = ['--test-large-data']
+
+# =============================================================================
+# Executables
+# =============================================================================
+
+test_includes = [ include_directories(join_paths(zstd_rootdir, 'programs')) ]
+
+datagen_sources = [join_paths(zstd_rootdir, 'programs/datagen.c'),
+  join_paths(zstd_rootdir, 'tests/datagencli.c')]
+datagen = executable('datagen',
+  datagen_sources,
+  c_args: [ '-DNDEBUG' ],
+  include_directories: test_includes,
+  dependencies: libzstd_dep,
+  install: false)
+
+fullbench_sources = [join_paths(zstd_rootdir, 'programs/datagen.c'),
+  join_paths(zstd_rootdir, 'programs/util.c'),
+  join_paths(zstd_rootdir, 'programs/timefn.c'),
+  join_paths(zstd_rootdir, 'programs/benchfn.c'),
+  join_paths(zstd_rootdir, 'programs/benchzstd.c'),
+  join_paths(zstd_rootdir, 'tests/fullbench.c')]
+fullbench = executable('fullbench',
+  fullbench_sources,
+  include_directories: test_includes,
+  dependencies: libzstd_dep,
+  install: false)
+
+fuzzer_sources = [join_paths(zstd_rootdir, 'programs/datagen.c'),
+  join_paths(zstd_rootdir, 'programs/util.c'),
+  join_paths(zstd_rootdir, 'programs/timefn.c'),
+  join_paths(zstd_rootdir, 'tests/fuzzer.c')]
+fuzzer = executable('fuzzer',
+  fuzzer_sources,
+  include_directories: test_includes,
+  dependencies: libzstd_dep,
+  install: false)
+
+zstreamtest_sources = [join_paths(zstd_rootdir, 'programs/datagen.c'),
+  join_paths(zstd_rootdir, 'programs/util.c'),
+  join_paths(zstd_rootdir, 'programs/timefn.c'),
+  join_paths(zstd_rootdir, 'tests/seqgen.c'),
+  join_paths(zstd_rootdir, 'tests/zstreamtest.c')]
+zstreamtest = executable('zstreamtest',
+  zstreamtest_sources,
+  include_directories: test_includes,
+  dependencies: libzstd_dep,
+  install: false)
+
+paramgrill_sources = [join_paths(zstd_rootdir, 'programs/benchfn.c'),
+  join_paths(zstd_rootdir, 'programs/timefn.c'),
+  join_paths(zstd_rootdir, 'programs/benchzstd.c'),
+  join_paths(zstd_rootdir, 'programs/datagen.c'),
+  join_paths(zstd_rootdir, 'programs/util.c'),
+  join_paths(zstd_rootdir, 'tests/paramgrill.c')]
+paramgrill = executable('paramgrill',
+  paramgrill_sources,
+  include_directories: test_includes,
+  dependencies: [ libzstd_dep, libm_dep ],
+  install: false)
+
+roundTripCrash_sources = [join_paths(zstd_rootdir, 'tests/roundTripCrash.c')]
+roundTripCrash = executable('roundTripCrash',
+  roundTripCrash_sources,
+  dependencies: [ libzstd_dep ],
+  install: false)
+
+longmatch_sources = [join_paths(zstd_rootdir, 'tests/longmatch.c')]
+longmatch = executable('longmatch',
+  longmatch_sources,
+  dependencies: [ libzstd_dep ],
+  install: false)
+
+invalidDictionaries_sources = [join_paths(zstd_rootdir, 'tests/invalidDictionaries.c')]
+invalidDictionaries = executable('invalidDictionaries',
+  invalidDictionaries_sources,
+  dependencies: [ libzstd_dep ],
+  install: false)
+
+if 0 < legacy_level and legacy_level <= 4
+  legacy_sources = [join_paths(zstd_rootdir, 'tests/legacy.c')]
+  legacy = executable('legacy',
+    legacy_sources,
+    # Use -Dlegacy_level build option to control it
+    #c_args: '-DZSTD_LEGACY_SUPPORT=4',
+    dependencies: [ libzstd_dep ],
+    install: false)
+endif
+
+decodecorpus_sources = [join_paths(zstd_rootdir, 'programs/util.c'),
+  join_paths(zstd_rootdir, 'programs/timefn.c'),
+  join_paths(zstd_rootdir, 'tests/decodecorpus.c')]
+decodecorpus = executable('decodecorpus',
+  decodecorpus_sources,
+  include_directories: test_includes,
+  dependencies: [ libzstd_dep, libm_dep ],
+  install: false)
+
+poolTests_sources = [join_paths(zstd_rootdir, 'programs/util.c'),
+  join_paths(zstd_rootdir, 'programs/timefn.c'),
+  join_paths(zstd_rootdir, 'tests/poolTests.c'),
+  join_paths(zstd_rootdir, 'lib/common/pool.c'),
+  join_paths(zstd_rootdir, 'lib/common/threading.c'),
+  join_paths(zstd_rootdir, 'lib/common/zstd_common.c'),
+  join_paths(zstd_rootdir, 'lib/common/error_private.c')]
+poolTests = executable('poolTests',
+  poolTests_sources,
+  include_directories: test_includes,
+  dependencies: [ libzstd_dep, thread_dep ],
+  install: false)
+
+checkTag_sources = [join_paths(zstd_rootdir, 'tests/checkTag.c')]
+checkTag = executable('checkTag',
+  checkTag_sources,
+  dependencies: [ libzstd_dep ],
+  install: false)
+
+# =============================================================================
+# Tests (Use "meson test --list" to list all tests)
+# =============================================================================
+
+if tests_supported_oses.contains(host_machine_os)
+  valgrind_prog = find_program('valgrind', ['/usr/bin/valgrind'], required: true)
+  valgrindTest_py = files('valgrindTest.py')
+  test('valgrindTest',
+    valgrindTest_py,
+    args: [valgrind_prog.path(), zstd, datagen, fuzzer, fullbench],
+    depends: [zstd, datagen, fuzzer, fullbench],
+    timeout: 600) # Timeout should work on HDD drive
+endif
+
+if host_machine_os != os_windows
+  playTests_sh = find_program(join_paths(zstd_rootdir, 'tests/playTests.sh'), required: true)
+  test('test-zstd',
+    playTests_sh,
+    args: ZSTDRTTEST,
+    env: ['ZSTD_BIN=' + zstd.full_path(), 'DATAGEN_BIN=./datagen'],
+    depends: [datagen],
+    workdir: meson.current_build_dir(),
+    timeout: 2800) # Timeout should work on HDD drive
+endif
+
+test('test-fullbench-1',
+  fullbench,
+  args: ['-i1'],
+  depends: [datagen],
+  timeout: 60)
+test('test-fullbench-2',
+  fullbench,
+  args: ['-i1', '-P0'],
+  depends: [datagen],
+  timeout: 60)
+
+if use_zlib
+  test('test-fuzzer',
+    fuzzer,
+    args: ['-v', FUZZERTEST] + FUZZER_FLAGS,
+    timeout: 480)
+endif
+
+test('test-zstream-1',
+  zstreamtest,
+  args: ['-v', ZSTREAM_TESTTIME] + FUZZER_FLAGS,
+  timeout: 240)
+test('test-zstream-2',
+  zstreamtest,
+  args: ['-mt', '-t1', ZSTREAM_TESTTIME] + FUZZER_FLAGS,
+  timeout: 120)
+test('test-zstream-3',
+  zstreamtest,
+  args: ['--newapi', '-t1', ZSTREAM_TESTTIME] + FUZZER_FLAGS,
+  timeout: 120)
+test('test-longmatch', longmatch, timeout: 36)
+test('test-invalidDictionaries', invalidDictionaries) # should be fast
+if 0 < legacy_level and legacy_level <= 4
+  test('test-legacy', legacy) # should be fast
+endif
+test('test-decodecorpus',
+  decodecorpus,
+  args: ['-t', DECODECORPUS_TESTTIME],
+  timeout: 60)
+test('test-poolTests', poolTests) # should be fast
diff --git a/src/zstd/build/meson/tests/valgrindTest.py b/src/zstd/build/meson/tests/valgrindTest.py
new file mode 100644
index 000000000..218f7458b
--- /dev/null
+++ b/src/zstd/build/meson/tests/valgrindTest.py
@@ -0,0 +1,90 @@
+#!/usr/bin/env python3
+# #############################################################################
+# Copyright (c) 2018-present    lzutao <taolzu(at)gmail.com>
+# All rights reserved.
+#
+# This source code is licensed under both the BSD-style license (found in the
+# LICENSE file in the root directory of this source tree) and the GPLv2 (found
+# in the COPYING file in the root directory of this source tree).
+# #############################################################################
+import os
+import subprocess
+import tempfile
+
+
+def valgrindTest(valgrind, datagen, fuzzer, zstd, fullbench):
+  VALGRIND_ARGS = [valgrind, '--leak-check=full', '--show-leak-kinds=all', '--error-exitcode=1']
+
+  print('\n ---- valgrind tests : memory analyzer ----')
+
+  subprocess.check_call([*VALGRIND_ARGS, datagen, '-g50M'], stdout=subprocess.DEVNULL)
+
+  if subprocess.call([*VALGRIND_ARGS, zstd],
+                     stdout=subprocess.DEVNULL) == 0:
+    raise subprocess.CalledProcessError('zstd without argument should have failed')
+
+  with subprocess.Popen([datagen, '-g80'], stdout=subprocess.PIPE) as p1, \
+       subprocess.Popen([*VALGRIND_ARGS, zstd, '-', '-c'],
+                        stdin=p1.stdout,
+                        stdout=subprocess.DEVNULL) as p2:
+    p1.stdout.close()  # Allow p1 to receive a SIGPIPE if p2 exits.
+    p2.communicate()
+    if p2.returncode != 0:
+      raise subprocess.CalledProcessError()
+
+  with subprocess.Popen([datagen, '-g16KB'], stdout=subprocess.PIPE) as p1, \
+       subprocess.Popen([*VALGRIND_ARGS, zstd, '-vf', '-', '-c'],
+                        stdin=p1.stdout,
+                        stdout=subprocess.DEVNULL) as p2:
+    p1.stdout.close()
+    p2.communicate()
+    if p2.returncode != 0:
+      raise subprocess.CalledProcessError()
+
+  with tempfile.NamedTemporaryFile() as tmp_fd:
+    with subprocess.Popen([datagen, '-g2930KB'], stdout=subprocess.PIPE) as p1, \
+         subprocess.Popen([*VALGRIND_ARGS, zstd, '-5', '-vf', '-', '-o', tmp_fd.name],
+                          stdin=p1.stdout) as p2:
+      p1.stdout.close()
+      p2.communicate()
+      if p2.returncode != 0:
+        raise subprocess.CalledProcessError()
+
+    subprocess.check_call([*VALGRIND_ARGS, zstd, '-vdf', tmp_fd.name, '-c'],
+                          stdout=subprocess.DEVNULL)
+
+    with subprocess.Popen([datagen, '-g64MB'], stdout=subprocess.PIPE) as p1, \
+         subprocess.Popen([*VALGRIND_ARGS, zstd, '-vf', '-', '-c'],
+                          stdin=p1.stdout,
+                          stdout=subprocess.DEVNULL) as p2:
+      p1.stdout.close()
+      p2.communicate()
+      if p2.returncode != 0:
+        raise subprocess.CalledProcessError()
+
+  subprocess.check_call([*VALGRIND_ARGS, fuzzer, '-T1mn', '-t1'])
+  subprocess.check_call([*VALGRIND_ARGS, fullbench, '-i1'])
+
+
+def main():
+  import argparse
+  parser = argparse.ArgumentParser(description='Valgrind tests : memory analyzer')
+  parser.add_argument('valgrind', help='valgrind path')
+  parser.add_argument('zstd', help='zstd path')
+  parser.add_argument('datagen', help='datagen path')
+  parser.add_argument('fuzzer', help='fuzzer path')
+  parser.add_argument('fullbench', help='fullbench path')
+
+  args = parser.parse_args()
+
+  valgrind = args.valgrind
+  zstd = args.zstd
+  datagen = args.datagen
+  fuzzer = args.fuzzer
+  fullbench = args.fullbench
+
+  valgrindTest(valgrind, datagen, fuzzer, zstd, fullbench)
+
+
+if __name__ == '__main__':
+  main()