zstd: Include build infra

src/dependencies/zstd-1.5.6/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

src/dependencies/zstd-1.5.6/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`. 

src/dependencies/zstd-1.5.6/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\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>

src/dependencies/zstd-1.5.6/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\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\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>

src/dependencies/zstd-1.5.6/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

src/dependencies/zstd-1.5.6/build/VS2008/zstd/zstd.vcproj

@@ -0,0 +1,677 @@
+<?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;$(SolutionDir)..\..\lib\compress"
+				PreprocessorDefinitions="ZSTD_MULTITHREAD=1;ZSTD_LEGACY_SUPPORT=5;WIN32;_DEBUG;_CONSOLE"
+				MinimalRebuild="true"
+				BasicRuntimeChecks="3"
+				RuntimeLibrary="3"
+				UsePrecompiledHeader="0"
+				WarningLevel="4"
+				WarnAsError="true"
+				DebugInformationFormat="4"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				AdditionalDependencies="setargv.obj"
+				LinkIncremental="2"
+				GenerateDebugInformation="true"
+				SubSystem="1"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|Win32"
+			OutputDirectory="$(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"
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src/dependencies/zstd-1.5.6/build/VS2008/zstdlib/zstdlib.vcproj

@@ -0,0 +1,635 @@
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+	Name="zstdlib"
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+	RootNamespace="zstdlib"
+	Keyword="Win32Proj"
+	TargetFrameworkVersion="196613"
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+		/>
+		<Platform
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+			<Tool
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src/dependencies/zstd-1.5.6/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", "Meta Platforms, Inc."
+            VALUE "FileDescription", "Zstandard - Fast and efficient compression algorithm"
+            VALUE "FileVersion", ZSTD_VERSION_STRING
+            VALUE "InternalName", "libzstd.dll"
+            VALUE "LegalCopyright", "Copyright (c) Meta Platforms, Inc. and affiliates."
+            VALUE "OriginalFilename", "libzstd.dll"
+            VALUE "ProductName", "Zstandard"
+            VALUE "ProductVersion", ZSTD_VERSION_STRING
+        END
+    END
+    BLOCK "VarFileInfo"
+    BEGIN
+        VALUE "Translation", 0x0409, 1200
+    END
+END
+
+#endif

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src/dependencies/zstd-1.5.6/build/VS2010/zstd.sln

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src/dependencies/zstd-1.5.6/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", "Meta Platforms, Inc."
+            VALUE "FileDescription", "Zstandard - Fast and efficient compression algorithm"
+            VALUE "FileVersion", ZSTD_VERSION_STRING
+            VALUE "InternalName", "zstd.exe"
+            VALUE "LegalCopyright", "Copyright (c) Meta Platforms, Inc. and affiliates."
+            VALUE "OriginalFilename", "zstd.exe"
+            VALUE "ProductName", "Zstandard"
+            VALUE "ProductVersion", ZSTD_VERSION_STRING
+        END
+    END
+    BLOCK "VarFileInfo"
+    BEGIN
+        VALUE "Translation", 0x0409, 1200
+    END
+END
+
+#endif

src/dependencies/zstd-1.5.6/build/VS2010/zstd/zstd.vcxproj

@@ -0,0 +1,265 @@
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+      <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\fileio_asyncio.c" />
+    <ClCompile Include="..\..\..\programs\lorem.c" />
+    <ClCompile Include="..\..\..\programs\zstdcli.c" />
+    <ClCompile Include="..\..\..\programs\zstdcli_trace.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\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\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)_$(Configuration)\</IntDir>
+    <InstructionSet>NotSet</InstructionSet>
+  </PropertyGroup>
+  <Import Project="$(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)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level4</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>ZSTD_MULTITHREAD=1;ZSTD_LEGACY_SUPPORT=5;WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <TreatWarningAsError>true</TreatWarningAsError>
+      <EnablePREfast>false</EnablePREfast>
+      <EnableEnhancedInstructionSet>$(InstructionSet)</EnableEnhancedInstructionSet>
+    </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>
+      <EnableEnhancedInstructionSet>$(InstructionSet)</EnableEnhancedInstructionSet>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <AdditionalDependencies>setargv.obj;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level4</WarningLevel>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>ZSTD_MULTITHREAD=1;ZSTD_LEGACY_SUPPORT=5;WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <EnablePREfast>false</EnablePREfast>
+      <TreatWarningAsError>false</TreatWarningAsError>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <EnableEnhancedInstructionSet>$(InstructionSet)</EnableEnhancedInstructionSet>
+    </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>
+      <EnableEnhancedInstructionSet>$(InstructionSet)</EnableEnhancedInstructionSet>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <AdditionalDependencies>setargv.obj;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

src/dependencies/zstd-1.5.6/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.

src/dependencies/zstd-1.5.6/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

src/dependencies/zstd-1.5.6/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

src/dependencies/zstd-1.5.6/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

src/dependencies/zstd-1.5.6/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

src/dependencies/zstd-1.5.6/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

src/dependencies/zstd-1.5.6/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

src/dependencies/zstd-1.5.6/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

src/dependencies/zstd-1.5.6/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

src/dependencies/zstd-1.5.6/build/VS_scripts/build.generic.cmd

@@ -0,0 +1,72 @@
+@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, VS2019, ...)
+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, v142, ...)
+
+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%
+)
+
+:: VS2019
+SET msbuild_vs2019community="%programfiles(x86)%\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\MSBuild.exe"
+SET msbuild_vs2019professional="%programfiles(x86)%\Microsoft Visual Studio\2019\Professional\MSBuild\Current\Bin\MSBuild.exe"
+SET msbuild_vs2019enterprise="%programfiles(x86)%\Microsoft Visual Studio\2019\Enterprise\MSBuild\Current\Bin\MSBuild.exe"
+IF %msbuild_version% == VS2019 (
+	IF EXIST %msbuild_vs2019community% SET msbuild=%msbuild_vs2019community%
+	IF EXIST %msbuild_vs2019professional% SET msbuild=%msbuild_vs2019professional%
+	IF EXIST %msbuild_vs2019enterprise% SET msbuild=%msbuild_vs2019enterprise%
+)
+
+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 #

src/dependencies/zstd-1.5.6/build/cmake/.gitignore

@@ -0,0 +1,10 @@
+# cmake working directory
+cmakeBuild
+
+# cmake artefacts
+CMakeCache.txt
+CMakeFiles
+Makefile
+cmake_install.cmake
+cmake_uninstall.cmake
+*.1

src/dependencies/zstd-1.5.6/build/cmake/CMakeLists.txt

@@ -0,0 +1,216 @@
+# ################################################################
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# 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 3.5 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("${ZSTD_MAX_VALIDATED_CMAKE_MAJOR_VERSION}" EQUAL "${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)
+
+project(zstd
+  VERSION "${zstd_VERSION_MAJOR}.${zstd_VERSION_MINOR}.${zstd_VERSION_PATCH}"
+  LANGUAGES C   # Main library is in C
+            ASM # And ASM
+            CXX # Testing contributed code also utilizes CXX
+  )
+
+message(STATUS "ZSTD VERSION: ${zstd_VERSION}")
+set(zstd_HOMEPAGE_URL "https://facebook.github.io/zstd")
+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: ${CMAKE_INSTALL_LIBDIR}")
+
+#-----------------------------------------------------------------------------
+# Options
+#-----------------------------------------------------------------------------
+
+# Legacy support
+option(ZSTD_LEGACY_SUPPORT "LEGACY SUPPORT" ON)
+
+if (ZSTD_LEGACY_SUPPORT)
+    message(STATUS "ZSTD_LEGACY_SUPPORT defined!")
+    set(ZSTD_LEGACY_LEVEL 5 CACHE STRING "")
+    add_definitions(-DZSTD_LEGACY_SUPPORT=${ZSTD_LEGACY_LEVEL})
+else ()
+    message(STATUS "ZSTD_LEGACY_SUPPORT not defined!")
+    add_definitions(-DZSTD_LEGACY_SUPPORT=0)
+endif ()
+
+if (ANDROID)
+    set(ZSTD_MULTITHREAD_SUPPORT_DEFAULT OFF)
+else()
+    set(ZSTD_MULTITHREAD_SUPPORT_DEFAULT ON)
+endif()
+
+# Multi-threading support
+option(ZSTD_MULTITHREAD_SUPPORT "MULTITHREADING SUPPORT" ${ZSTD_MULTITHREAD_SUPPORT_DEFAULT})
+
+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" ${ZSTD_BUILD_TESTS_default})
+if (MSVC)
+    option(ZSTD_USE_STATIC_RUNTIME "LINK TO STATIC RUN-TIME LIBRARIES" OFF)
+endif ()
+
+#-----------------------------------------------------------------------------
+# External dependencies
+#-----------------------------------------------------------------------------
+# Define a function to handle special thread settings for HP-UX
+# See https://github.com/facebook/zstd/pull/3862 for details.
+function(setup_hpux_threads)
+    find_package(Threads)
+    if (NOT Threads_FOUND)
+        set(CMAKE_USE_PTHREADS_INIT 1 PARENT_SCOPE)
+        set(CMAKE_THREAD_LIBS_INIT -lpthread PARENT_SCOPE)
+        set(CMAKE_HAVE_THREADS_LIBRARY 1 PARENT_SCOPE)
+        set(Threads_FOUND TRUE PARENT_SCOPE)
+    endif()
+endfunction()
+
+if (ZSTD_MULTITHREAD_SUPPORT AND UNIX)
+    if (CMAKE_SYSTEM_NAME MATCHES "HP-UX")
+        setup_hpux_threads()
+    else()
+        set(THREADS_PREFER_PTHREAD_FLAG ON)
+        find_package(Threads REQUIRED)
+    endif()
+    if (CMAKE_USE_PTHREADS_INIT)
+        set(THREADS_LIBS "${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::
+    )
+
+# 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 ${ConfigPackageLocation}
+    )
+configure_package_config_file(
+    zstdConfig.cmake.in
+    "${CMAKE_CURRENT_BINARY_DIR}/zstdConfig.cmake"
+    INSTALL_DESTINATION ${ConfigPackageLocation}
+)
+install(FILES
+    "${CMAKE_CURRENT_BINARY_DIR}/zstdConfig.cmake"
+    "${CMAKE_CURRENT_BINARY_DIR}/zstdConfigVersion.cmake"
+    DESTINATION ${ConfigPackageLocation}
+    )

src/dependencies/zstd-1.5.6/build/cmake/CMakeModules/AddZstdCompilationFlags.cmake

@@ -0,0 +1,121 @@
+include(CheckCXXCompilerFlag)
+include(CheckCCompilerFlag)
+# VERSION_GREATER_EQUAL requires CMake 3.7 or later.
+# https://cmake.org/cmake/help/latest/command/if.html#version-greater-equal
+if (CMAKE_VERSION VERSION_LESS 3.18)
+    set(ZSTD_HAVE_CHECK_LINKER_FLAG false)
+else ()
+    set(ZSTD_HAVE_CHECK_LINKER_FLAG true)
+endif ()
+if (ZSTD_HAVE_CHECK_LINKER_FLAG)
+    include(CheckLinkerFlag)
+endif()
+
+function(EnableCompilerFlag _flag _C _CXX _LD)
+    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 ()
+    if (_LD)
+        # We never add a linker flag with CMake < 3.18. We will
+        # implement CHECK_LINKER_FLAG() like feature for CMake < 3.18
+        # or require CMake >= 3.18 when we need to add a required
+        # linker flag in future.
+        #
+        # We also skip linker flags check for MSVC compilers (which includes
+        # clang-cl) since currently check_linker_flag() doesn't give correct
+        # results for this configuration,
+        # see: https://gitlab.kitware.com/cmake/cmake/-/issues/22023
+        if (ZSTD_HAVE_CHECK_LINKER_FLAG AND NOT MSVC)
+            CHECK_LINKER_FLAG(C ${_flag} LD_FLAG_${varname})
+        else ()
+            set(LD_FLAG_${varname} false)
+        endif ()
+        if (LD_FLAG_${varname})
+            set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${_flag}" PARENT_SCOPE)
+            set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_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
+        # It's possible to select the exact standard used for compilation.
+        # It's not necessary, but can be employed for specific purposes.
+        # Note that zstd source code is compatible with both C++98 and above
+        # and C-gnu90 (c90 + long long + variadic macros ) and above
+        # EnableCompilerFlag("-std=c++11" false true) # Set C++ compilation to c++11 standard
+        # EnableCompilerFlag("-std=c99" true false)   # Set C compiation to c99 standard
+        if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND MSVC)
+            # clang-cl normally maps -Wall to -Weverything.
+            EnableCompilerFlag("/clang:-Wall" true true false)
+        else ()
+            EnableCompilerFlag("-Wall" true true false)
+        endif ()
+        EnableCompilerFlag("-Wextra" true true false)
+        EnableCompilerFlag("-Wundef" true true false)
+        EnableCompilerFlag("-Wshadow" true true false)
+        EnableCompilerFlag("-Wcast-align" true true false)
+        EnableCompilerFlag("-Wcast-qual" true true false)
+        EnableCompilerFlag("-Wstrict-prototypes" true false false)
+        # Enable asserts in Debug mode
+        if (CMAKE_BUILD_TYPE MATCHES "Debug")
+            EnableCompilerFlag("-DDEBUGLEVEL=1" true true false)
+        endif ()
+        # Add noexecstack flags
+        # LDFLAGS
+        EnableCompilerFlag("-z noexecstack" false false true)
+        # CFLAGS & CXXFLAGS
+        EnableCompilerFlag("-Qunused-arguments" true true false)
+        EnableCompilerFlag("-Wa,--noexecstack" true true false)
+    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 false)
+        endif ()
+
+        # UNICODE SUPPORT
+        EnableCompilerFlag("/D_UNICODE" true true false)
+        EnableCompilerFlag("/DUNICODE" true true false)
+        # Enable asserts in Debug mode
+        if (CMAKE_BUILD_TYPE MATCHES "Debug")
+            EnableCompilerFlag("/DDEBUGLEVEL=1" true true false)
+        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})
+            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()

src/dependencies/zstd-1.5.6/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 )

src/dependencies/zstd-1.5.6/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()
+

src/dependencies/zstd-1.5.6/build/cmake/CMakeModules/JoinPaths.cmake

@@ -0,0 +1,23 @@
+# This module provides function for joining paths
+# known from most languages
+#
+# SPDX-License-Identifier: (MIT OR CC0-1.0)
+# Copyright 2020 Jan Tojnar
+# https://github.com/jtojnar/cmake-snips
+#
+# Modelled after Python’s os.path.join
+# https://docs.python.org/3.7/library/os.path.html#os.path.join
+# Windows not supported
+function(join_paths joined_path first_path_segment)
+    set(temp_path "${first_path_segment}")
+    foreach(current_segment IN LISTS ARGN)
+        if(NOT ("${current_segment}" STREQUAL ""))
+            if(IS_ABSOLUTE "${current_segment}")
+                set(temp_path "${current_segment}")
+            else()
+                set(temp_path "${temp_path}/${current_segment}")
+            endif()
+        endif()
+    endforeach()
+    set(${joined_path} "${temp_path}" PARENT_SCOPE)
+endfunction()

src/dependencies/zstd-1.5.6/build/cmake/README.md

@@ -0,0 +1,136 @@
+# Cmake contributions
+
+Contributions to the cmake build configurations are welcome. Please
+use case sensitivity that matches modern (i.e. 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 an "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=OFF ..
+make
+```
+
+### how to use it with CMake FetchContent
+
+For all options available, you can see it on <https://github.com/facebook/zstd/blob/dev/build/cmake/lib/CMakeLists.txt>
+```cmake
+include(FetchContent)
+
+set(ZSTD_BUILD_STATIC ON)
+set(ZSTD_BUILD_SHARED OFF)
+
+FetchContent_Declare(
+    zstd
+    URL "https://github.com/facebook/zstd/releases/download/v1.5.5/zstd-1.5.5.tar.gz"
+    DOWNLOAD_EXTRACT_TIMESTAMP TRUE
+    SOURCE_SUBDIR build/cmake
+)
+
+FetchContent_MakeAvailable(zstd)
+
+target_link_libraries(
+    ${PROJECT_NAME}
+    PRIVATE
+    libzstd_static
+)
+
+# On windows and macos this is needed
+target_include_directories(
+    ${PROJECT_NAME}
+    PRIVATE
+    ${zstd_SOURCE_DIR}/lib
+)
+```
+
+### 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

src/dependencies/zstd-1.5.6/build/cmake/contrib/CMakeLists.txt

@@ -0,0 +1,13 @@
+# ################################################################
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# 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)

src/dependencies/zstd-1.5.6/build/cmake/contrib/gen_html/CMakeLists.txt

@@ -0,0 +1,30 @@
+# ################################################################
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# 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}")

src/dependencies/zstd-1.5.6/build/cmake/contrib/pzstd/CMakeLists.txt

@@ -0,0 +1,39 @@
+# ################################################################
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# 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)
+target_compile_features(pzstd PRIVATE cxx_std_11)
+set_property(TARGET pzstd APPEND PROPERTY COMPILE_DEFINITIONS "NDEBUG")
+set_property(TARGET pzstd APPEND PROPERTY COMPILE_OPTIONS "-Wno-shadow")
+
+if (ZSTD_BUILD_SHARED)
+    set(ZSTD_LIB libzstd_shared)
+else()
+    set(ZSTD_LIB libzstd_static)
+endif()
+
+set(THREADS_PREFER_PTHREAD_FLAG ON)
+find_package(Threads REQUIRED)
+if (CMAKE_USE_PTHREADS_INIT)
+  target_link_libraries(pzstd ${ZSTD_LIB} ${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")

src/dependencies/zstd-1.5.6/build/cmake/lib/.gitignore

@@ -0,0 +1,2 @@
+# cmake build artefact
+libzstd.pc

src/dependencies/zstd-1.5.6/build/cmake/lib/CMakeLists.txt

@@ -0,0 +1,253 @@
+# ################################################################
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# 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 C ASM)
+
+set(CMAKE_INCLUDE_CURRENT_DIR TRUE)
+option(ZSTD_BUILD_STATIC "BUILD STATIC LIBRARIES" ON)
+option(ZSTD_BUILD_SHARED "BUILD SHARED LIBRARIES" ON)
+option(ZSTD_BUILD_COMPRESSION "BUILD COMPRESSION MODULE" ON)
+option(ZSTD_BUILD_DECOMPRESSION "BUILD DECOMPRESSION MODULE" ON)
+option(ZSTD_BUILD_DICTBUILDER "BUILD DICTBUILDER MODULE" ON)
+option(ZSTD_BUILD_DEPRECATED "BUILD DEPRECATED MODULE" OFF)
+
+set(ZSTDLIB_VISIBLE "" CACHE STRING "Visibility for ZSTDLIB API")
+set(ZSTDERRORLIB_VISIBLE "" CACHE STRING "Visibility for ZSTDERRORLIB_VISIBLE API")
+set(ZDICTLIB_VISIBLE "" CACHE STRING "Visibility for ZDICTLIB_VISIBLE API")
+set(ZSTDLIB_STATIC_API "" CACHE STRING "Visibility for ZSTDLIB_STATIC_API API")
+set(ZDICTLIB_STATIC_API "" CACHE STRING "Visibility for ZDICTLIB_STATIC_API API")
+
+set_property(CACHE ZSTDLIB_VISIBLE PROPERTY STRINGS "" "hidden" "default" "protected" "internal")
+set_property(CACHE ZSTDERRORLIB_VISIBLE PROPERTY STRINGS "" "hidden" "default" "protected" "internal")
+set_property(CACHE ZDICTLIB_VISIBLE PROPERTY STRINGS "" "hidden" "default" "protected" "internal")
+set_property(CACHE ZSTDLIB_STATIC_API PROPERTY STRINGS "" "hidden" "default" "protected" "internal")
+set_property(CACHE ZDICTLIB_STATIC_API PROPERTY STRINGS "" "hidden" "default" "protected" "internal")
+
+if(NOT ZSTD_BUILD_SHARED AND NOT ZSTD_BUILD_STATIC)
+    message(SEND_ERROR "You need to build at least one flavor of libzstd")
+endif()
+
+file(GLOB CommonSources ${LIBRARY_DIR}/common/*.c)
+file(GLOB CompressSources ${LIBRARY_DIR}/compress/*.c)
+file(GLOB DecompressSources ${LIBRARY_DIR}/decompress/*.c)
+if (MSVC)
+    add_compile_options(-DZSTD_DISABLE_ASM)
+else ()
+    if(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64.*|AMD64.*|x86_64.*|X86_64.*")
+        set(DecompressSources ${DecompressSources} ${LIBRARY_DIR}/decompress/huf_decompress_amd64.S)
+    else()
+        add_compile_options(-DZSTD_DISABLE_ASM)
+    endif()
+endif ()
+file(GLOB DictBuilderSources ${LIBRARY_DIR}/dictBuilder/*.c)
+file(GLOB DeprecatedSources ${LIBRARY_DIR}/deprecated/*.c)
+
+file(GLOB PublicHeaders ${LIBRARY_DIR}/*.h)
+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(Sources ${CommonSources})
+set(Headers ${PublicHeaders} ${CommonHeaders})
+if (ZSTD_BUILD_COMPRESSION)
+    set(Sources ${Sources} ${CompressSources})
+    set(Headers ${Headers} ${CompressHeaders})
+endif()
+if (ZSTD_BUILD_DECOMPRESSION)
+    set(Sources ${Sources} ${DecompressSources})
+    set(Headers ${Headers} ${DecompressHeaders})
+endif()
+if (ZSTD_BUILD_DICTBUILDER)
+    set(Sources ${Sources} ${DictBuilderSources})
+    set(Headers ${Headers} ${DictBuilderHeaders})
+endif()
+if (ZSTD_BUILD_DEPRECATED)
+    set(Sources ${Sources} ${DeprecatedSources})
+    set(Headers ${Headers} ${DeprecatedHeaders})
+endif()
+
+if (ZSTD_LEGACY_SUPPORT)
+    set(LIBRARY_LEGACY_DIR ${LIBRARY_DIR}/legacy)
+
+    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 ${MSVC_RESOURCE_DIR}/libzstd-dll.rc)
+endif ()
+
+# Explicitly set the language to C for all files, including ASM files.
+# Our assembly expects to be compiled by a C compiler, and is only enabled for
+# __GNUC__ compatible compilers. Otherwise all the ASM code is disabled by
+# macros.
+if(NOT CMAKE_ASM_COMPILER STREQUAL CMAKE_C_COMPILER)
+    set_source_files_properties(${Sources} PROPERTIES LANGUAGE C)
+endif()
+
+macro (add_definition target var)
+    if (NOT ("${${var}}" STREQUAL ""))
+        set_property(TARGET ${target} APPEND PROPERTY COMPILE_DEFINITIONS "${var}=__attribute__((visibility(\"${${var}}\")))")
+    endif ()
+endmacro ()
+
+# Define directories containing the library's public headers
+set(PUBLIC_INCLUDE_DIRS ${LIBRARY_DIR})
+
+# Split project to static and shared libraries build
+set(library_targets)
+if (ZSTD_BUILD_SHARED)
+    add_library(libzstd_shared SHARED ${Sources} ${Headers} ${PlatformDependResources})
+    target_include_directories(libzstd_shared INTERFACE $<BUILD_INTERFACE:${PUBLIC_INCLUDE_DIRS}>)
+    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 ()
+    add_definition(libzstd_shared ZSTDLIB_VISIBLE)
+    add_definition(libzstd_shared ZSTDERRORLIB_VISIBLE)
+    add_definition(libzstd_shared ZDICTLIB_VISIBLE)
+endif ()
+if (ZSTD_BUILD_STATIC)
+    add_library(libzstd_static STATIC ${Sources} ${Headers})
+    target_include_directories(libzstd_static INTERFACE $<BUILD_INTERFACE:${PUBLIC_INCLUDE_DIRS}>)
+    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 ()
+    add_definition(libzstd_static ZSTDLIB_VISIBLE)
+    add_definition(libzstd_static ZSTDERRORLIB_VISIBLE)
+    add_definition(libzstd_static ZDICTLIB_VISIBLE)
+    add_definition(libzstd_static ZSTDLIB_STATIC_API)
+    add_definition(libzstd_static ZDICTLIB_STATIC_API)
+endif ()
+if (ZSTD_BUILD_SHARED AND NOT ZSTD_BUILD_STATIC)
+    if (NOT BUILD_SHARED_LIBS)
+        message(WARNING "BUILD_SHARED_LIBS is OFF, but ZSTD_BUILD_SHARED is ON and ZSTD_BUILD_STATIC is OFF, which takes precedence, so libzstd is a shared library")
+    endif ()
+    add_library(libzstd INTERFACE)
+    target_link_libraries(libzstd INTERFACE libzstd_shared)
+    list(APPEND library_targets libzstd)
+endif ()
+if (ZSTD_BUILD_STATIC AND NOT ZSTD_BUILD_SHARED)
+    if (BUILD_SHARED_LIBS)
+        message(WARNING "BUILD_SHARED_LIBS is ON, but ZSTD_BUILD_SHARED is OFF and ZSTD_BUILD_STATIC is ON, which takes precedence, is set so libzstd is a static library")
+    endif ()
+    add_library(libzstd INTERFACE)
+    target_link_libraries(libzstd INTERFACE libzstd_static)
+    list(APPEND library_targets libzstd)
+endif ()
+if (ZSTD_BUILD_SHARED AND ZSTD_BUILD_STATIC)
+    # If both ZSTD_BUILD_SHARED and ZSTD_BUILD_STATIC are set, which is the
+    # default, fallback to using BUILD_SHARED_LIBS to determine whether to
+    # set libzstd to static or shared.
+    if (BUILD_SHARED_LIBS)
+        add_library(libzstd INTERFACE)
+        target_link_libraries(libzstd INTERFACE libzstd_shared)
+        list(APPEND library_targets libzstd)
+    else ()
+        add_library(libzstd INTERFACE)
+        target_link_libraries(libzstd INTERFACE libzstd_static)
+        list(APPEND library_targets libzstd)
+    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 OR (WIN32 AND CMAKE_CXX_COMPILER_ID STREQUAL "Clang" AND NOT MINGW))
+    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 ${STATIC_LIBRARY_BASE_NAME})
+endif ()
+
+# pkg-config
+include(JoinPaths) # can be replaced by cmake_path(APPEND) in CMake 3.20
+set(PREFIX "${CMAKE_INSTALL_PREFIX}")
+set(EXEC_PREFIX "\${prefix}")
+join_paths(LIBDIR "\${exec_prefix}" "${CMAKE_INSTALL_LIBDIR}")
+join_paths(INCLUDEDIR "\${prefix}" "${CMAKE_INSTALL_INCLUDEDIR}")
+set(LIBS_PRIVATE "${THREADS_LIBS}")
+set(VERSION "${zstd_VERSION}")
+
+configure_file("${LIBRARY_DIR}/libzstd.pc.in" "${CMAKE_CURRENT_BINARY_DIR}/libzstd.pc" @ONLY)
+install(FILES "${CMAKE_CURRENT_BINARY_DIR}/libzstd.pc" DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
+
+# install target
+install(FILES ${PublicHeaders} DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")
+
+install(TARGETS ${library_targets}
+    EXPORT zstdExports
+    INCLUDES DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
+    ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+    LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+    RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
+    BUNDLE DESTINATION "${CMAKE_INSTALL_BINDIR}"
+    )
+
+# 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 ()

src/dependencies/zstd-1.5.6/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()

src/dependencies/zstd-1.5.6/build/cmake/programs/.gitignore

@@ -0,0 +1,5 @@
+# produced by make
+zstd
+zstd-frugal
+unzstd
+zstdcat

src/dependencies/zstd-1.5.6/build/cmake/programs/CMakeLists.txt

@@ -0,0 +1,144 @@
+# ################################################################
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# 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 C)
+
+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 ${MSVC_RESOURCE_DIR}/zstd.rc)
+endif ()
+
+file(GLOB ZSTD_PROGRAM_SRCS "${PROGRAMS_DIR}/*.c")
+if (MSVC AND ZSTD_PROGRAMS_LINK_SHARED)
+    list(APPEND ZSTD_PROGRAM_SRCS ${LIBRARY_DIR}/common/pool.c ${LIBRARY_DIR}/common/threading.c)
+endif ()
+
+add_executable(zstd ${ZSTD_PROGRAM_SRCS})
+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}"
+  BUNDLE 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 ${PROGRAMS_DIR}/fileio_asyncio.c)
+    target_link_libraries(zstd-frugal ${PROGRAMS_ZSTD_LINK_TARGET})
+    set_property(TARGET zstd-frugal APPEND PROPERTY COMPILE_DEFINITIONS "ZSTD_NOBENCH;ZSTD_NODICT;ZSTD_NOTRACE")
+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 ()

src/dependencies/zstd-1.5.6/build/cmake/tests/.gitignore

@@ -0,0 +1,6 @@
+# produced by make
+datagen
+fullbench
+fuzzer
+paramgrill
+

src/dependencies/zstd-1.5.6/build/cmake/tests/CMakeLists.txt

@@ -0,0 +1,118 @@
+# ################################################################
+# zstd - Makefile
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# 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 : https://facebook.github.io/zstd/
+# ################################################################
+
+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 ${PROGRAMS_DIR}/lorem.c ${TESTS_DIR}/loremOut.c ${TESTS_DIR}/datagencli.c)
+target_link_libraries(datagen libzstd_static)
+
+#
+# fullbench
+#
+add_executable(fullbench ${PROGRAMS_DIR}/datagen.c ${PROGRAMS_DIR}/lorem.c ${PROGRAMS_DIR}/util.c ${PROGRAMS_DIR}/timefn.c ${PROGRAMS_DIR}/benchfn.c ${PROGRAMS_DIR}/benchzstd.c ${TESTS_DIR}/fullbench.c)
+if (NOT MSVC)
+    target_compile_options(fullbench PRIVATE "-Wno-deprecated-declarations")
+endif()
+target_link_libraries(fullbench libzstd_static)
+add_test(NAME fullbench COMMAND "$<TARGET_FILE:fullbench>" ${ZSTD_FULLBENCH_FLAGS})
+
+#
+# fuzzer
+#
+add_executable(fuzzer ${PROGRAMS_DIR}/datagen.c ${PROGRAMS_DIR}/util.c ${PROGRAMS_DIR}/timefn.c ${TESTS_DIR}/fuzzer.c)
+if (NOT MSVC)
+    target_compile_options(fuzzer PRIVATE "-Wno-deprecated-declarations")
+endif()
+target_link_libraries(fuzzer libzstd_static)
+AddTestFlagsOption(ZSTD_FUZZER_FLAGS "$ENV{FUZZERTEST} $ENV{FUZZER_FLAGS}"
+    "Semicolon-separated list of flags to pass to the fuzzer test (see `fuzzer -h` for usage)")
+add_test(NAME fuzzer COMMAND "$<TARGET_FILE: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 ${TESTS_DIR}/external_matchfinder.c)
+if (NOT MSVC)
+    target_compile_options(zstreamtest PRIVATE "-Wno-deprecated-declarations")
+endif()
+target_link_libraries(zstreamtest libzstd_static)
+AddTestFlagsOption(ZSTD_ZSTREAM_FLAGS "$ENV{ZSTREAM_TESTTIME} $ENV{FUZZER_FLAGS}"
+    "Semicolon-separated list of flags to pass to the zstreamtest test (see `zstreamtest -h` for usage)")
+add_test(NAME zstreamtest COMMAND "$<TARGET_FILE:zstreamtest>" ${ZSTD_ZSTREAM_FLAGS})
+
+#
+# playTests.sh
+#
+AddTestFlagsOption(ZSTD_PLAYTESTS_FLAGS "$ENV{PLAYTESTS_FLAGS}"
+    "Semicolon-separated list of flags to pass to the playTests.sh test")
+add_test(NAME playTests COMMAND sh -c "\"${TESTS_DIR}/playTests.sh\" ${ZSTD_PLAYTESTS_FLAGS}")
+find_program(UNAME uname) # Run script only in unix shell environments
+if (ZSTD_BUILD_PROGRAMS AND UNAME)
+    set_property(TEST playTests APPEND PROPERTY ENVIRONMENT
+        "ZSTD_BIN=$<TARGET_FILE:zstd>"
+        "DATAGEN_BIN=$<TARGET_FILE:datagen>"
+        )
+else()
+    message(STATUS "Disabling playTests.sh test because requirements not met")
+    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)
+
+add_executable(paramgrill ${PROGRAMS_DIR}/benchfn.c ${PROGRAMS_DIR}/benchzstd.c ${PROGRAMS_DIR}/datagen.c ${PROGRAMS_DIR}/lorem.c ${PROGRAMS_DIR}/util.c ${PROGRAMS_DIR}/timefn.c ${TESTS_DIR}/paramgrill.c)
+if (UNIX)
+    target_link_libraries(paramgrill libzstd_static m) #m is math library
+else()
+    target_link_libraries(paramgrill libzstd_static)
+endif ()

src/dependencies/zstd-1.5.6/build/cmake/zstdConfig.cmake.in

@@ -0,0 +1,10 @@
+@PACKAGE_INIT@
+
+include(CMakeFindDependencyMacro)
+if(@ZSTD_MULTITHREAD_SUPPORT@ AND "@UNIX@")
+  find_dependency(Threads)
+endif()
+
+include("${CMAKE_CURRENT_LIST_DIR}/zstdTargets.cmake")
+
+check_required_components("zstd")

src/dependencies/zstd-1.5.6/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()

src/dependencies/zstd-1.5.6/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()

src/dependencies/zstd-1.5.6/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).

src/dependencies/zstd-1.5.6/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)

src/dependencies/zstd-1.5.6/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')

src/dependencies/zstd-1.5.6/build/meson/contrib/pzstd/meson.build

@@ -0,0 +1,25 @@
+# #############################################################################
+# 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: pzstd_warning_flags,
+  include_directories: pzstd_includes,
+  dependencies: [ libzstd_dep, thread_dep ],
+  override_options: ['b_ndebug=true'],
+  install: true)

src/dependencies/zstd-1.5.6/build/meson/lib/meson.build

@@ -0,0 +1,167 @@
+# #############################################################################
+# 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'))]
+
+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')]
+
+# really we need anything that defines __GNUC__ as that is what ZSTD_ASM_SUPPORTED is gated on
+# but these are the two compilers that are supported in tree and actually handle this correctly
+# Otherwise, explicitly disable assembly.
+if [compiler_gcc, compiler_clang].contains(cc_id)
+  libzstd_sources += join_paths(zstd_rootdir, 'lib/decompress/huf_decompress_amd64.S')
+else
+  add_project_arguments('-DZSTD_DISABLE_ASM', language: 'c')
+endif
+
+# 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'),
+      include_directories: libzstd_includes)]
+    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,
+  gnu_symbol_visibility: 'hidden',
+  dependencies: libzstd_deps,
+  install: true,
+  version: zstd_libversion)
+
+libzstd_dep = declare_dependency(link_with: libzstd,
+  include_directories: libzstd_includes)
+
+# we link to both:
+# - the shared library (for public symbols)
+# - the static library (for private symbols)
+#
+# this is needed because internally private symbols are used all the time, and
+# -fvisibility=hidden means those cannot be found
+if get_option('default_library') == 'static'
+  libzstd_static = libzstd
+  libzstd_internal_dep = libzstd_dep
+else
+  if get_option('default_library') == 'shared'
+    libzstd_static = static_library('zstd_objlib',
+      objects: libzstd.extract_all_objects(recursive: true),
+      build_by_default: false)
+  else
+    libzstd_static = libzstd.get_static_lib()
+  endif
+
+  if cc_id == compiler_msvc
+    # msvc does not actually support linking to both, but errors out with:
+    #   error LNK2005: ZSTD_<foo> already defined in zstd.lib(zstd-1.dll)
+    libzstd_internal_dep = declare_dependency(link_with: libzstd_static)
+  else
+    libzstd_internal_dep = declare_dependency(link_with: libzstd,
+      # the static library must be linked after the shared one
+      dependencies: declare_dependency(link_with: libzstd_static))
+  endif
+endif
+
+pkgconfig.generate(libzstd,
+  name: 'libzstd',
+  filebase: 'libzstd',
+  description: 'fast lossless compression algorithm library',
+  version: zstd_libversion,
+  url: 'https://facebook.github.io/zstd/')
+
+install_headers(join_paths(zstd_rootdir, 'lib/zstd.h'),
+  join_paths(zstd_rootdir, 'lib/zdict.h'),
+  join_paths(zstd_rootdir, 'lib/zstd_errors.h'))

src/dependencies/zstd-1.5.6/build/meson/meson.build

@@ -0,0 +1,145 @@
+# #############################################################################
+# 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 : [
+    # There shouldn't be any need to force a C standard convention for zstd
+    # but in case one would want that anyway, this can be done here.
+    # 'c_std=gnu99',
+    # c++11 standard is useful for pzstd
+    'cpp_std=c++11',
+    'buildtype=release',
+    'warning_level=3',
+    # -Wdocumentation does not actually pass, nor do the test binaries,
+    # so this isn't safe
+    #'werror=true'
+  ],
+  version: run_command(
+    find_program('GetZstdLibraryVersion.py'), '../../lib/zstd.h',
+    check: true).stdout().strip(),
+  meson_version: '>=0.50.0')
+
+cc = meson.get_compiler('c')
+cxx = meson.get_compiler('cpp')
+pkgconfig = import('pkgconfig')
+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_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: false)
+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'])
+
+pzstd_warning_flags = []
+if [compiler_gcc, compiler_clang].contains(cc_id)
+  common_warning_flags = [ '-Wundef', '-Wshadow', '-Wcast-align', '-Wcast-qual' ]
+  pzstd_warning_flags = ['-Wno-shadow', '-Wno-deprecated-declarations']
+  if cc_id == compiler_clang
+    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 or bin_tests
+  subdir('programs')
+endif
+
+if bin_tests
+  subdir('tests')
+endif
+
+if bin_contrib
+  subdir('contrib')
+endif

src/dependencies/zstd-1.5.6/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: 'feature', value: 'disabled',
+  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')

src/dependencies/zstd-1.5.6/build/meson/programs/meson.build

@@ -0,0 +1,124 @@
+# #############################################################################
+# 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/fileio_asyncio.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/lorem.c'),
+  join_paths(zstd_rootdir, 'programs/dibio.c'),
+  join_paths(zstd_rootdir, 'programs/zstdcli_trace.c')]
+
+zstd_deps = [ libzstd_internal_dep ]
+zstd_c_args = libzstd_debug_cflags
+
+zstd_frugal_deps = [ libzstd_internal_dep ]
+zstd_frugal_c_args = [ '-DZSTD_NOBENCH', '-DZSTD_NODICT', '-DZSTD_NOTRACE' ]
+
+if use_multi_thread
+  zstd_deps += [ thread_dep ]
+  zstd_c_args += [ '-DZSTD_MULTITHREAD' ]
+  zstd_frugal_deps += [ thread_dep ]
+  zstd_frugal_c_args += [ '-DZSTD_MULTITHREAD' ]
+endif
+
+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
+have_execinfo = cc.has_header('execinfo.h', required: use_backtrace)
+if not have_execinfo
+  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'),
+      include_directories: libzstd_includes)]
+  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
+  build_by_default: bin_programs,
+  install: bin_programs)
+
+if not bin_programs
+  # we generate rules to build the programs, but don't install anything
+  # so do not continue to installing scripts and manpages
+  subdir_done()
+endif
+
+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'),
+  join_paths(zstd_rootdir, 'programs/fileio_asyncio.c')]
+
+# Minimal target, with only zstd compression and decompression.
+# No bench. No legacy.
+executable('zstd-frugal',
+  zstd_frugal_sources,
+  dependencies: zstd_frugal_deps,
+  c_args: zstd_frugal_c_args,
+  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

src/dependencies/zstd-1.5.6/build/meson/tests/meson.build

@@ -0,0 +1,217 @@
+# #############################################################################
+# 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'
+
+# =============================================================================
+# Executables
+# =============================================================================
+
+test_includes = [ include_directories(join_paths(zstd_rootdir, 'programs')) ]
+
+testcommon_sources = [join_paths(zstd_rootdir, 'programs/datagen.c'),
+  join_paths(zstd_rootdir, 'programs/lorem.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')]
+
+testcommon = static_library('testcommon',
+  testcommon_sources,
+  # needed due to use of private symbol + -fvisibility=hidden
+  link_with: libzstd_static)
+
+testcommon_dep = declare_dependency(link_with: testcommon,
+  dependencies: libzstd_deps,
+  include_directories: libzstd_includes)
+
+datagen_sources = [join_paths(zstd_rootdir, 'tests/datagencli.c'),
+  join_paths(zstd_rootdir, 'tests/loremOut.c')]
+datagen = executable('datagen',
+  datagen_sources,
+  c_args: [ '-DNDEBUG' ],
+  include_directories: test_includes,
+  dependencies: testcommon_dep,
+  install: false)
+
+fullbench_sources = [join_paths(zstd_rootdir, 'tests/fullbench.c')]
+fullbench = executable('fullbench',
+  fullbench_sources,
+  include_directories: test_includes,
+  dependencies: testcommon_dep,
+  install: false)
+
+fuzzer_sources = [join_paths(zstd_rootdir, 'tests/fuzzer.c')]
+fuzzer = executable('fuzzer',
+  fuzzer_sources,
+  include_directories: test_includes,
+  dependencies: [ testcommon_dep, thread_dep ],
+  install: false)
+
+zstreamtest_sources = [
+  join_paths(zstd_rootdir, 'tests/seqgen.c'),
+  join_paths(zstd_rootdir, 'tests/zstreamtest.c'),
+  join_paths(zstd_rootdir, 'tests/external_matchfinder.c')]
+zstreamtest = executable('zstreamtest',
+  zstreamtest_sources,
+  include_directories: test_includes,
+  dependencies: testcommon_dep,
+  install: false)
+
+paramgrill_sources = [join_paths(zstd_rootdir, 'tests/paramgrill.c')]
+paramgrill = executable('paramgrill',
+  paramgrill_sources,
+  include_directories: test_includes,
+  dependencies: [ testcommon_dep, libm_dep ],
+  install: false)
+
+roundTripCrash_sources = [join_paths(zstd_rootdir, 'tests/roundTripCrash.c')]
+roundTripCrash = executable('roundTripCrash',
+  roundTripCrash_sources,
+  dependencies: [ testcommon_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, 'tests/decodecorpus.c')]
+decodecorpus = executable('decodecorpus',
+  decodecorpus_sources,
+  include_directories: test_includes,
+  dependencies: [ testcommon_dep, libm_dep ],
+  install: false)
+
+poolTests_sources = [join_paths(zstd_rootdir, 'tests/poolTests.c')]
+poolTests = executable('poolTests',
+  poolTests_sources,
+  include_directories: test_includes,
+  dependencies: [ testcommon_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: false)
+  valgrindTest_py = files('valgrindTest.py')
+  if valgrind_prog.found()
+    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
+endif
+
+if host_machine_os != os_windows
+  playTests_sh = find_program(join_paths(zstd_rootdir, 'tests/playTests.sh'), required: true)
+
+  # add slow tests only if the meson version is new enough to support
+  # test setups with default-excluded suites
+  if meson.version().version_compare('>=0.57.0')
+    matrix = {'fast': [], 'slow': ['--test-large-data']}
+  else
+    matrix = {'fast': []}
+  endif
+
+  foreach suite, opt: matrix
+    test('test-zstd-'+suite,
+      playTests_sh,
+      args: opt,
+      env: ['ZSTD_BIN=' + zstd.full_path(), 'DATAGEN_BIN=./datagen'],
+      depends: [datagen, zstd],
+      suite: suite,
+      workdir: meson.current_build_dir(),
+      timeout: 2800) # Timeout should work on HDD drive
+  endforeach
+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-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
+
+if meson.version().version_compare('>=0.57.0')
+  add_test_setup('fast',
+    is_default: true,
+    exclude_suites: ['slow'])
+  add_test_setup('slow',
+    exclude_suites: ['fast'])
+endif

src/dependencies/zstd-1.5.6/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.SubprocessError('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.SubprocessError()
+
+  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.SubprocessError()
+
+  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.SubprocessError()
+
+    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.SubprocessError()
+
+  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()

src/dependencies/zstd-1.5.6/build/single_file_libs/.gitignore

@@ -0,0 +1,9 @@
+
+# build artifacts
+zstddeclib.c
+zstdenclib.c
+zstd.c
+zstd.h
+
+# test artifacts
+temp*

src/dependencies/zstd-1.5.6/build/single_file_libs/README.md

@@ -0,0 +1,33 @@
+# Single File Zstandard Libraries
+
+The script `combine.sh` creates an _amalgamated_ source file that can be used with or without `zstd.h`. This isn't a _header-only_ file but it does offer a similar level of simplicity when integrating into a project.
+
+All it now takes to support Zstd in your own projects is the addition of a single file, two if using the header, with no configuration or further build steps.
+
+Decompressor
+------------
+
+This is the most common use case. The decompression library is small, adding, for example, 26kB to an Emscripten compiled WebAssembly project. Native implementations add a little more, 40-70kB depending on the compiler and platform.
+
+Create `zstddeclib.c` from the Zstd source using:
+```
+cd zstd/build/single_file_libs
+python3 combine.py -r ../../lib -x legacy/zstd_legacy.h -o zstddeclib.c zstddeclib-in.c
+```
+Then add the resulting file to your project (see the [example files](examples)).
+
+`create_single_file_decoder.sh` will run the above script, creating the file `zstddeclib.c` (`build_decoder_test.sh` will also create `zstddeclib.c`, then compile and test the result).
+
+Full Library
+------------
+
+The same tool can amalgamate the entire Zstd library for ease of adding both compression and decompression to a project. The [roundtrip example](examples/roundtrip.c) uses the original `zstd.h` with the remaining source files combined into `zstd.c` (currently just over 1.2MB) created from `zstd-in.c`. As with the standalone decoder the most useful compile flags have already been rolled-in and the resulting file can be added to a project as-is.
+
+Create `zstd.c` from the Zstd source using:
+```
+cd zstd/build/single_file_libs
+python3 combine.py -r ../../lib -x legacy/zstd_legacy.h -k zstd.h -o zstd.c zstd-in.c
+```
+It's possible to create a compressor-only library but since the decompressor is so small in comparison this doesn't bring much of a gain (but for the curious, simply remove the files in the _decompress_ section at the end of `zstd-in.c`).
+
+`create_single_file_library.sh` will run the script to create `zstd.c` (`build_library_test.sh` will also create `zstd.c`, then compile and test the result).

src/dependencies/zstd-1.5.6/build/single_file_libs/build_decoder_test.sh

@@ -0,0 +1,91 @@
+#!/bin/sh
+
+# Temporary compiled binary
+OUT_FILE="tempbin"
+
+# Optional temporary compiled WebAssembly
+OUT_WASM="temp.wasm"
+
+# Source files to compile using Emscripten.
+IN_FILES="examples/emscripten.c"
+
+# Emscripten build using emcc.
+emscripten_emcc_build() {
+  # Compile the same example as above
+  CC_FLAGS="-Wall -Wextra -Wshadow -Werror -Os -g0 -flto"
+  emcc $CC_FLAGS -s WASM=1 -I. -o $OUT_WASM $IN_FILES
+  # Did compilation work?
+  if [ $? -ne 0 ]; then
+    echo "Compiling ${IN_FILES}: FAILED"
+    exit 1
+  fi
+  echo "Compiling ${IN_FILES}: PASSED"
+  rm -f $OUT_WASM
+}
+
+# Emscripten build using docker.
+emscripten_docker_build() {
+  docker container run --rm \
+    --volume $PWD:/code \
+    --workdir /code \
+    emscripten/emsdk:latest \
+    emcc $CC_FLAGS -s WASM=1 -I. -o $OUT_WASM $IN_FILES
+  # Did compilation work?
+  if [ $? -ne 0 ]; then
+      echo "Compiling ${IN_FILES} (using docker): FAILED"
+    exit 1
+  fi
+  echo "Compiling ${IN_FILES} (using docker): PASSED"
+  rm -f $OUT_WASM
+}
+
+# Try Emscripten build using emcc or docker.
+try_emscripten_build() {
+  which emcc > /dev/null
+  if [ $? -eq 0 ]; then
+    emscripten_emcc_build
+    return $?
+  fi
+
+  which docker > /dev/null
+  if [ $? -eq 0 ]; then
+    emscripten_docker_build
+    return $?
+  fi
+
+  echo "(Skipping Emscripten test)"
+}
+
+# Amalgamate the sources
+./create_single_file_decoder.sh
+# Did combining work?
+if [ $? -ne 0 ]; then
+  echo "Single file decoder creation script: FAILED"
+  exit 1
+fi
+echo "Single file decoder creation script: PASSED"
+
+# Compile the generated output
+cc -Wall -Wextra -Wshadow -Werror -Os -g0 -o $OUT_FILE examples/simple.c
+# Did compilation work?
+if [ $? -ne 0 ]; then
+  echo "Compiling simple.c: FAILED"
+  exit 1
+fi
+echo "Compiling simple.c: PASSED"
+
+# Run then delete the compiled output
+./$OUT_FILE
+retVal=$?
+rm -f $OUT_FILE
+# Did the test work?
+if [ $retVal -ne 0 ]; then
+  echo "Running simple.c: FAILED"
+  exit 1
+fi
+echo "Running simple.c: PASSED"
+
+# Try Emscripten build if emcc or docker command is available.
+try_emscripten_build
+
+exit 0

src/dependencies/zstd-1.5.6/build/single_file_libs/build_library_test.sh

@@ -0,0 +1,97 @@
+#!/bin/sh
+
+# Where to find the sources (only used to copy zstd.h)
+ZSTD_SRC_ROOT="../../lib"
+
+# Temporary compiled binary
+OUT_FILE="tempbin"
+
+# Optional temporary compiled WebAssembly
+OUT_WASM="temp.wasm"
+
+# Source files to compile using Emscripten.
+IN_FILES="zstd.c examples/roundtrip.c"
+
+# Emscripten build using emcc.
+emscripten_emcc_build() {
+  # Compile the same example as above
+  CC_FLAGS="-Wall -Wextra -Wshadow -Werror -Os -g0 -flto"
+  emcc $CC_FLAGS -s WASM=1 -I. -o $OUT_WASM $IN_FILES
+  # Did compilation work?
+  if [ $? -ne 0 ]; then
+    echo "Compiling ${IN_FILES}: FAILED"
+    exit 1
+  fi
+  echo "Compiling ${IN_FILES}: PASSED"
+  rm -f $OUT_WASM
+}
+
+# Emscripten build using docker.
+emscripten_docker_build() {
+  docker container run --rm \
+    --volume $PWD:/code \
+    --workdir /code \
+    emscripten/emsdk:latest \
+    emcc $CC_FLAGS -s WASM=1 -I. -o $OUT_WASM $IN_FILES
+  # Did compilation work?
+  if [ $? -ne 0 ]; then
+      echo "Compiling ${IN_FILES} (using docker): FAILED"
+    exit 1
+  fi
+  echo "Compiling ${IN_FILES} (using docker): PASSED"
+  rm -f $OUT_WASM
+}
+
+# Try Emscripten build using emcc or docker.
+try_emscripten_build() {
+  which emcc > /dev/null
+  if [ $? -eq 0 ]; then
+    emscripten_emcc_build
+    return $?
+  fi
+
+  which docker > /dev/null
+  if [ $? -eq 0 ]; then
+    emscripten_docker_build
+    return $?
+  fi
+
+  echo "(Skipping Emscripten test)"
+}
+
+# Amalgamate the sources
+./create_single_file_library.sh
+# Did combining work?
+if [ $? -ne 0 ]; then
+  echo "Single file library creation script: FAILED"
+  exit 1
+fi
+echo "Single file library creation script: PASSED"
+
+# Copy the header to here (for the tests)
+cp "$ZSTD_SRC_ROOT/zstd.h" examples/zstd.h
+
+# Compile the generated output
+cc -Wall -Wextra -Werror -Wshadow -pthread -I. -Os -g0 -o $OUT_FILE zstd.c examples/roundtrip.c
+# Did compilation work?
+if [ $? -ne 0 ]; then
+  echo "Compiling roundtrip.c: FAILED"
+  exit 1
+fi
+echo "Compiling roundtrip.c: PASSED"
+
+# Run then delete the compiled output
+./$OUT_FILE
+retVal=$?
+rm -f $OUT_FILE
+# Did the test work?
+if [ $retVal -ne 0 ]; then
+  echo "Running roundtrip.c: FAILED"
+  exit 1
+fi
+echo "Running roundtrip.c: PASSED"
+
+# Try Emscripten build if emcc or docker command is available.
+try_emscripten_build
+
+exit 0

src/dependencies/zstd-1.5.6/build/single_file_libs/combine.py

@@ -0,0 +1,234 @@
+#!/usr/bin/env python3
+
+# Tool to bundle multiple C/C++ source files, inlining any includes.
+# 
+# Note: there are two types of exclusion options: the '-x' flag, which besides
+# excluding a file also adds an #error directive in place of the #include, and
+# the '-k' flag, which keeps the #include and doesn't inline the file. The
+# intended use cases are: '-x' for files that would normally be #if'd out, so
+# features that 100% won't be used in the amalgamated file, for which every
+# occurrence adds the error, and '-k' for headers that we wish to manually
+# include, such as a project's public API, for which occurrences after the first
+# are removed.
+# 
+# Todo: the error handling could be better, which currently throws and halts
+# (which is functional just not very friendly).
+# 
+# Author: Carl Woffenden, Numfum GmbH (this script is released under a CC0 license/Public Domain)
+
+import argparse, re, sys
+
+from pathlib import Path
+from typing import Any, List, Optional, Pattern, Set, TextIO
+
+# Set of file roots when searching (equivalent to -I paths for the compiler).
+roots: Set[Path] = set()
+
+# Set of (canonical) file Path objects to exclude from inlining (and not only
+# exclude but to add a compiler error directive when they're encountered).
+excludes: Set[Path] = set()
+
+# Set of (canonical) file Path objects to keep as include directives.
+keeps: Set[Path] = set()
+
+# Whether to keep the #pragma once directives (unlikely, since this will result
+# in a warning, but the option is there).
+keep_pragma: bool = False
+
+# Destination file object (or stdout if no output file was supplied).
+destn: TextIO = sys.stdout
+
+# Set of file Path objects previously inlined (and to ignore if reencountering).
+found: Set[Path] = set()
+
+# Compiled regex Pattern to handle "#pragma once" in various formats:
+# 
+#   #pragma once
+#     #pragma once
+#   #  pragma once
+#   #pragma   once
+#   #pragma once // comment
+# 
+# Ignoring commented versions, same as include_regex.
+# 
+pragma_regex: Pattern = re.compile(r'^\s*#\s*pragma\s*once\s*')
+
+# Compiled regex Pattern to handle the following type of file includes:
+# 
+#   #include "file"
+#     #include "file"
+#   #  include "file"
+#   #include   "file"
+#   #include "file" // comment
+#   #include "file" // comment with quote "
+# 
+# And all combinations of, as well as ignoring the following:
+# 
+#   #include <file>
+#   //#include "file"
+#   /*#include "file"*/
+# 
+# We don't try to catch errors since the compiler will do this (and the code is
+# expected to be valid before processing) and we don't care what follows the
+# file (whether it's a valid comment or not, since anything after the quoted
+# string is ignored)
+# 
+include_regex: Pattern = re.compile(r'^\s*#\s*include\s*"(.+?)"')
+
+# Simple tests to prove include_regex's cases.
+# 
+def test_match_include() -> bool:
+    if (include_regex.match('#include "file"')   and
+        include_regex.match('  #include "file"') and
+        include_regex.match('#  include "file"') and
+        include_regex.match('#include   "file"') and
+        include_regex.match('#include "file" // comment')):
+            if (not include_regex.match('#include <file>')   and
+                not include_regex.match('//#include "file"') and
+                not include_regex.match('/*#include "file"*/')):
+                    found = include_regex.match('#include "file" // "')
+                    if (found and found.group(1) == 'file'):
+                        print('#include match valid')
+                        return True
+    return False
+
+# Simple tests to prove pragma_regex's cases.
+# 
+def test_match_pragma() -> bool:
+    if (pragma_regex.match('#pragma once')   and
+        pragma_regex.match('  #pragma once') and
+        pragma_regex.match('#  pragma once') and
+        pragma_regex.match('#pragma   once') and
+        pragma_regex.match('#pragma once // comment')):
+            if (not pragma_regex.match('//#pragma once') and
+                not pragma_regex.match('/*#pragma once*/')):
+                    print('#pragma once match valid')
+                    return True
+    return False
+
+# Finds 'file'. First the list of 'root' paths are searched, followed by the
+# currently processing file's 'parent' path, returning a valid Path in
+# canonical form. If no match is found None is returned.
+# 
+def resolve_include(file: str, parent: Optional[Path] = None) -> Optional[Path]:
+    for root in roots:
+        found = root.joinpath(file).resolve()
+        if (found.is_file()):
+            return found
+    if (parent):
+        found = parent.joinpath(file).resolve();
+    else:
+        found = Path(file)
+    if (found.is_file()):
+        return found
+    return None
+
+# Helper to resolve lists of files. 'file_list' is passed in from the arguments
+# and each entry resolved to its canonical path (like any include entry, either
+# from the list of root paths or the owning file's 'parent', which in this case
+# is case is the input file). The results are stored in 'resolved'.
+# 
+def resolve_excluded_files(file_list: Optional[List[str]], resolved: Set[Path], parent: Optional[Path] = None) -> None:
+    if (file_list):
+        for filename in file_list:
+            found = resolve_include(filename, parent)
+            if (found):
+                resolved.add(found)
+            else:
+                error_line(f'Warning: excluded file not found: {filename}')
+
+# Writes 'line' to the open 'destn' (or stdout).
+# 
+def write_line(line: str) -> None:
+    print(line, file=destn)
+
+# Logs 'line' to stderr. This is also used for general notifications that we
+# don't want to go to stdout (so the source can be piped).
+# 
+def error_line(line: Any) -> None:
+    print(line, file=sys.stderr)
+
+# Inline the contents of 'file' (with any of its includes also inlined, etc.).
+# 
+# Note: text encoding errors are ignored and replaced with ? when reading the
+# input files. This isn't ideal, but it's more than likely in the comments than
+# code and a) the text editor has probably also failed to read the same content,
+# and b) the compiler probably did too.
+# 
+def add_file(file: Path, file_name: str = None) -> None:
+    if (file.is_file()):
+        if (not file_name):
+            file_name = file.name
+        error_line(f'Processing: {file_name}')
+        with file.open('r', errors='replace') as opened:
+            for line in opened:
+                line = line.rstrip('\n')
+                match_include = include_regex.match(line);
+                if (match_include):
+                    # We have a quoted include directive so grab the file
+                    inc_name = match_include.group(1)
+                    resolved = resolve_include(inc_name, file.parent)
+                    if (resolved):
+                        if (resolved in excludes):
+                            # The file was excluded so error if the compiler uses it
+                            write_line(f'#error Using excluded file: {inc_name} (re-amalgamate source to fix)')
+                            error_line(f'Excluding: {inc_name}')
+                        else:
+                            if (resolved not in found):
+                                # The file was not previously encountered
+                                found.add(resolved)
+                                if (resolved in keeps):
+                                    # But the include was flagged to keep as included
+                                    write_line(f'/**** *NOT* inlining {inc_name} ****/')
+                                    write_line(line)
+                                    error_line(f'Not inlining: {inc_name}')
+                                else:
+                                    # The file was neither excluded nor seen before so inline it
+                                    write_line(f'/**** start inlining {inc_name} ****/')
+                                    add_file(resolved, inc_name)
+                                    write_line(f'/**** ended inlining {inc_name} ****/')
+                            else:
+                                write_line(f'/**** skipping file: {inc_name} ****/')
+                    else:
+                        # The include file didn't resolve to a file
+                        write_line(f'#error Unable to find: {inc_name}')
+                        error_line(f'Error: Unable to find: {inc_name}')
+                else:
+                    # Skip any 'pragma once' directives, otherwise write the source line
+                    if (keep_pragma or not pragma_regex.match(line)):
+                        write_line(line)
+    else:
+        error_line(f'Error: Invalid file: {file}')
+
+# Start here
+parser = argparse.ArgumentParser(description='Amalgamate Tool', epilog=f'example: {sys.argv[0]} -r ../my/path -r ../other/path -o out.c in.c')
+parser.add_argument('-r', '--root', action='append', type=Path, help='file root search path')
+parser.add_argument('-x', '--exclude',  action='append', help='file to completely exclude from inlining')
+parser.add_argument('-k', '--keep', action='append', help='file to exclude from inlining but keep the include directive')
+parser.add_argument('-p', '--pragma', action='store_true', default=False, help='keep any "#pragma once" directives (removed by default)')
+parser.add_argument('-o', '--output', type=argparse.FileType('w'), help='output file (otherwise stdout)')
+parser.add_argument('input', type=Path, help='input file')
+args = parser.parse_args()
+
+# Fail early on an invalid input (and store it so we don't recurse)
+args.input = args.input.resolve(strict=True)
+found.add(args.input)
+
+# Resolve all of the root paths upfront (we'll halt here on invalid roots)
+if (args.root):
+    for path in args.root:
+        roots.add(path.resolve(strict=True))
+
+# The remaining params: so resolve the excluded files and #pragma once directive
+resolve_excluded_files(args.exclude, excludes, args.input.parent)
+resolve_excluded_files(args.keep,    keeps,    args.input.parent)
+keep_pragma = args.pragma;
+
+# Then recursively process the input file
+try:
+    if (args.output):
+        destn = args.output
+    add_file(args.input)
+finally:
+    if (destn):
+        destn.close()

src/dependencies/zstd-1.5.6/build/single_file_libs/combine.sh

@@ -0,0 +1,249 @@
+#!/bin/sh -e
+
+# Tool to bundle multiple C/C++ source files, inlining any includes.
+# 
+# TODO: ROOTS, FOUND, etc., as arrays (since they fail on paths with spaces)
+# 
+# Author: Carl Woffenden, Numfum GmbH (this script is released under a CC0 license/Public Domain)
+
+# Common file roots
+ROOTS="."
+
+# -x option excluded includes
+XINCS=""
+
+# -k option includes to keep as include directives
+KINCS=""
+
+# Files previously visited
+FOUND=""
+
+# Optional destination file (empty string to write to stdout)
+DESTN=""
+
+# Whether the "#pragma once" directives should be written to the output
+PONCE=0
+
+# Prints the script usage then exits
+usage() {
+  echo "Usage: $0 [-r <path>] [-x <header>] [-k <header>] [-o <outfile>] infile"
+  echo "  -r file root search path"
+  echo "  -x file to completely exclude from inlining"
+  echo "  -k file to exclude from inlining but keep the include directive"
+  echo "  -p keep any '#pragma once' directives (removed by default)"
+  echo "  -o output file (otherwise stdout)"
+  echo "Example: $0 -r ../my/path - r ../other/path -o out.c in.c"
+  exit 1
+}
+
+# Tests that the grep implementation works as expected (older OSX grep fails)
+test_deps() {
+  if ! echo '#include "foo"' | grep -Eq '^\s*#\s*include\s*".+"'; then
+    echo "Aborting: the grep implementation fails to parse include lines"
+    exit 1
+  fi
+  if ! echo '"foo.h"' | sed -E 's/"([^"]+)"/\1/' | grep -Eq '^foo\.h$'; then
+    echo "Aborting: sed is unavailable or non-functional"
+    exit 1
+  fi
+}
+
+# Test if glob pattern $1 matches subject $2 (see fnmatch(3))
+fnmatch() {
+  case "$2" in
+  $1)
+    return 0
+    ;;
+  esac
+  return 1
+}
+
+# Test if line $1 is local include directive
+is_include_line() {
+  fnmatch "*#*include*" "$1" || return 1
+  printf "%s\n" "$1" | grep -Eq '^\s*#\s*include\s*".+"'
+}
+
+# Test if line $1 is pragma once directive
+is_pragma_once_line() {
+  fnmatch "*#*pragma*once*" "$1" || return 1
+  printf "%s\n" "$1" | grep -Eq '^\s*#\s*pragma\s*once\s*'
+}
+
+# Tests if list $1 has item $2 (returning zero on a match)
+# (originally used grep -Eq "(^|\s*)$2(\$|\s*))
+readonly list_FS="$IFS"
+list_has_item() {
+  # Re: escaping glob pattern special characters in item string:
+  #
+  # bash (tested 3.2.57, 5.1.4), dash (tested 0.5.10.2), NetBSD /bin/sh
+  # (tested 8.2), and Solaris /bin/sh (tested 11.4) require escaping
+  # backslashes in a bracket expression despite POSIX specifying that
+  # backslash loses significance in a bracket expression.
+  #
+  # Conversely, neither FreeBSD /bin/sh (tested 12.2) nor OpenBSD /bin/sh
+  # (tested 7.1) obey backslash-escaping in case statement patterns even
+  # outside bracket expressions, so escape special characters using bracket
+  # expressions.
+  #
+  # Solaris /bin/sh (tested 11.4) requires vertical bar (|) to be escaped.
+  #
+  # All accommodations should behave as expected under strict POSIX semantics.
+  if fnmatch "*[\\*?[|]*" "$2"; then
+    set -- "$1" "$(printf '%s\n' "$2" | sed -e 's/[*?[|]/[&]/g; s/[\]/[\\&]/g')"
+  fi
+  for item_P in "*[$list_FS]$2[$list_FS]*" "*[$list_FS]$2" "$2[$list_FS]*" "$2"; do
+    fnmatch "${item_P}" "$1" && return 0
+  done
+  return 1
+}
+
+# Adds a new line with the supplied arguments to $DESTN (or stdout)
+write_line() {
+  if [ -n "$DESTN" ]; then
+    printf '%s\n' "$@" >> "$DESTN"
+  else
+    printf '%s\n' "$@"
+  fi
+}
+
+log_line() {
+  echo $@ >&2
+}
+
+# Find this file!
+resolve_include() {
+  local srcdir=$1
+  local inc=$2
+  for root in $srcdir $ROOTS; do
+    if [ -f "$root/$inc" ]; then
+      # Try to reduce the file path into a canonical form (so that multiple)
+      # includes of the same file are successfully deduplicated, even if they
+      # are expressed differently.
+      local relpath="$(realpath --relative-to . "$root/$inc" 2>/dev/null)"
+      if [ "$relpath" != "" ]; then # not all realpaths support --relative-to
+        echo "$relpath"
+        return 0
+      fi
+      local relpath="$(realpath "$root/$inc" 2>/dev/null)"
+      if [ "$relpath" != "" ]; then # not all distros have realpath...
+        echo "$relpath"
+        return 0
+      fi
+      # Fallback on Python to reduce the path if the above fails.
+      local relpath=$(python -c "import os,sys; print os.path.relpath(sys.argv[1])" "$root/$inc" 2>/dev/null)
+      if [ "$relpath" != "" ]; then # not all distros have realpath...
+        echo "$relpath"
+        return 0
+      fi
+      # Worst case, fall back to just the root + relative include path. The
+      # problem with this is that it is possible to emit multiple different
+      # resolved paths to the same file, depending on exactly how its included.
+      # Since the main loop below keeps a list of the resolved paths it's
+      # already included, in order to avoid repeated includes, this failure to
+      # produce a canonical/reduced path can lead to multiple inclusions of the
+      # same file. But it seems like the resulting single file library still
+      # works (hurray include guards!), so I guess it's ok.
+      echo "$root/$inc"
+      return 0
+    fi
+  done
+  return 1
+}
+
+# Adds the contents of $1 with any of its includes inlined
+add_file() {
+  local file=$1
+  if [ -n "$file" ]; then
+    log_line "Processing: $file"
+    # Get directory of the current so we can resolve relative includes
+    local srcdir="$(dirname "$file")"
+    # Read the file
+    local line=
+    while IFS= read -r line; do
+      if is_include_line "$line"; then
+        # We have an include directive so strip the (first) file
+        local inc=$(echo "$line" | grep -Eo '".*"' | sed -E 's/"([^"]+)"/\1/' | head -1)
+        local res_inc="$(resolve_include "$srcdir" "$inc")"
+        if list_has_item "$XINCS" "$inc"; then
+          # The file was excluded so error if the source attempts to use it
+          write_line "#error Using excluded file: $inc (re-amalgamate source to fix)"
+          log_line "Excluding: $inc"
+        else
+          if ! list_has_item "$FOUND" "$res_inc"; then
+            # The file was not previously encountered
+            FOUND="$FOUND $res_inc"
+            if list_has_item "$KINCS" "$inc"; then
+              # But the include was flagged to keep as included
+              write_line "/**** *NOT* inlining $inc ****/"
+              write_line "$line"
+              log_line "Not Inlining: $inc"
+            else
+              # The file was neither excluded nor seen before so inline it
+              write_line "/**** start inlining $inc ****/"
+              add_file "$res_inc"
+              write_line "/**** ended inlining $inc ****/"
+            fi
+          else
+            write_line "/**** skipping file: $inc ****/"
+          fi
+        fi
+      else
+        # Skip any 'pragma once' directives, otherwise write the source line
+        local write=$PONCE
+        if [ $write -eq 0 ]; then
+          if ! is_pragma_once_line "$line"; then
+            write=1
+          fi
+        fi
+        if [ $write -ne 0 ]; then
+          write_line "$line"
+        fi
+      fi
+    done < "$file"
+  else
+    write_line "#error Unable to find \"$1\""
+    log_line "Error: Unable to find: \"$1\""
+  fi
+}
+
+while getopts ":r:x:k:po:" opts; do
+  case $opts in
+  r)
+    ROOTS="$ROOTS $OPTARG"
+    ;;
+  x)
+    XINCS="$XINCS $OPTARG"
+    ;;
+  k)
+    KINCS="$KINCS $OPTARG"
+    ;;
+  p)
+    PONCE=1
+    ;;
+  o)
+    DESTN="$OPTARG"
+    ;;
+  *)
+    usage
+    ;;
+  esac
+done
+shift $((OPTIND-1))
+
+if [ -n "$1" ]; then
+  if [ -f "$1" ]; then
+    if [ -n "$DESTN" ]; then
+      printf "" > "$DESTN"
+    fi
+    test_deps
+    log_line "Processing using the slower shell script; this might take a while"
+    add_file "$1"
+  else
+    echo "Input file not found: \"$1\""
+    exit 1
+  fi
+else
+  usage
+fi
+exit 0

src/dependencies/zstd-1.5.6/build/single_file_libs/create_single_file_decoder.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+# Where to find the sources
+ZSTD_SRC_ROOT="../../lib"
+
+# Amalgamate the sources
+echo "Amalgamating files..."
+# Using the faster Python script if we have 3.8 or higher
+if python3 -c 'import sys; assert sys.version_info >= (3,8)' 2>/dev/null; then
+  ./combine.py -r "$ZSTD_SRC_ROOT" -x legacy/zstd_legacy.h -o zstddeclib.c zstddeclib-in.c
+else
+  ./combine.sh -r "$ZSTD_SRC_ROOT" -x legacy/zstd_legacy.h -o zstddeclib.c zstddeclib-in.c
+fi
+# Did combining work?
+if [ $? -ne 0 ]; then
+  echo "Combine script: FAILED"
+  exit 1
+fi
+echo "Combine script: PASSED"

src/dependencies/zstd-1.5.6/build/single_file_libs/create_single_file_library.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+# Where to find the sources
+ZSTD_SRC_ROOT="../../lib"
+
+# Amalgamate the sources
+echo "Amalgamating files..."
+# Using the faster Python script if we have 3.8 or higher
+if python3 -c 'import sys; assert sys.version_info >= (3,8)' 2>/dev/null; then
+  ./combine.py -r "$ZSTD_SRC_ROOT" -x legacy/zstd_legacy.h -o zstd.c zstd-in.c
+else
+  ./combine.sh -r "$ZSTD_SRC_ROOT" -x legacy/zstd_legacy.h -o zstd.c zstd-in.c
+fi
+# Did combining work?
+if [ $? -ne 0 ]; then
+  echo "Combine script: FAILED"
+  exit 1
+fi
+echo "Combine script: PASSED"

src/dependencies/zstd-1.5.6/build/single_file_libs/examples/README.md

@@ -0,0 +1,11 @@
+# Single File ZStandard Examples
+
+The examples `#include` the generated `zstddeclib.c` directly but work equally as well when including `zstd.h` and compiling the amalgamated source separately.
+
+`simple.c` is the most basic example of decompressing content and verifying the result.
+
+`emscripten.c` is a bare-bones [Emscripten](https://github.com/emscripten-core/emscripten) compiled WebGL demo using Zstd to further compress a DXT1 texture (see the [original PNG image](testcard.png)). The 256x256 texture would normally be 32kB, but even when bundled with the Zstd decompressor the resulting WebAssembly weighs in at 41kB (`shell.html` is a support file to run the Wasm).
+
+`roundtrip.c` is an example to use with the optional [amalgamated library](../create_single_file_library.sh) showing compression the decompression.
+
+The example files in this directory are released under a [Creative Commons Zero license](https://creativecommons.org/publicdomain/zero/1.0/) (or Public Domain, whichever is applicable in your jurisdiction).

src/dependencies/zstd-1.5.6/build/single_file_libs/examples/emscripten.c

@@ -0,0 +1,340 @@
+/**
+ * \file emscripten.c
+ * Emscripten example of using the single-file \c zstddeclib. Draws a rotating
+ * textured quad with data from the in-line Zstd compressed DXT1 texture (DXT1
+ * being hardware compression, further compressed with Zstd).
+ * \n
+ * Compile using:
+ * \code
+ *	export CC_FLAGS="-Wall -Wextra -Werror -Os -g0 -flto --llvm-lto 3 -lGL -DNDEBUG=1"
+ *	export EM_FLAGS="-s WASM=1 -s ENVIRONMENT=web --shell-file shell.html --closure 1"
+ *	emcc $CC_FLAGS $EM_FLAGS -o out.html emscripten.c
+ * \endcode
+ * 
+ * \author Carl Woffenden, Numfum GmbH (released under a CC0 license)
+ */
+
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <emscripten/emscripten.h>
+#include <emscripten/html5.h>
+
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+
+#include "../zstddeclib.c"
+
+//************************* Test Data (DXT texture) **************************/
+
+/**
+ * Zstd compressed DXT1 256x256 texture source.
+ * \n
+ * See \c testcard.png for the original.
+ */
+static uint8_t const srcZstd[] = {
+#include "testcard-zstd.inl"
+};
+
+/**
+ * Uncompressed size of \c #srcZstd.
+ */
+#define DXT1_256x256 32768
+
+/**
+ * Destination for decoding \c #srcZstd.
+ */
+static uint8_t dstDxt1[DXT1_256x256] = {};
+
+#ifndef ZSTD_VERSION_MAJOR
+/**
+ * For the case where the decompression library hasn't been included we add a
+ * dummy function to fake the process and stop the buffers being optimised out.
+ */
+size_t ZSTD_decompress(void* dst, size_t dstLen, const void* src, size_t srcLen) {
+	return (memcmp(dst, src, (srcLen < dstLen) ? srcLen : dstLen)) ? dstLen : 0;
+}
+#endif
+
+//*************************** Program and Shaders ***************************/
+
+/**
+ * Program object ID.
+ */
+static GLuint progId = 0;
+
+/**
+ * Vertex shader ID.
+ */
+static GLuint vertId = 0;
+
+/**
+ * Fragment shader ID.
+ */
+static GLuint fragId = 0;
+
+//********************************* Uniforms *********************************/
+
+/**
+ * Quad rotation angle ID.
+ */
+static GLint uRotId = -1;
+
+/**
+ * Draw colour ID.
+ */
+static GLint uTx0Id = -1;
+
+//******************************* Shader Source ******************************/
+
+/**
+ * Vertex shader to draw texture mapped polys with an applied rotation.
+ */
+static GLchar const vertShader2D[] =
+#if GL_ES_VERSION_2_0
+	"#version 100\n"
+	"precision mediump float;\n"
+#else
+	"#version 120\n"
+#endif
+	"uniform   float uRot;"	// rotation
+	"attribute vec2  aPos;"	// vertex position coords
+	"attribute vec2  aUV0;"	// vertex texture UV0
+	"varying   vec2  vUV0;"	// (passed to fragment shader)
+	"void main() {"
+	"	float cosA = cos(radians(uRot));"
+	"	float sinA = sin(radians(uRot));"
+	"	mat3 rot = mat3(cosA, -sinA, 0.0,"
+	"					sinA,  cosA, 0.0,"
+	"					0.0,   0.0,  1.0);"
+	"	gl_Position = vec4(rot * vec3(aPos, 1.0), 1.0);"
+	"	vUV0 = aUV0;"
+	"}";
+
+/**
+ * Fragment shader for the above polys.
+ */
+static GLchar const fragShader2D[] =
+#if GL_ES_VERSION_2_0
+	"#version 100\n"
+	"precision mediump float;\n"
+#else
+	"#version 120\n"
+#endif
+	"uniform sampler2D uTx0;"
+	"varying vec2      vUV0;" // (passed from fragment shader)
+	"void main() {"
+	"	gl_FragColor = texture2D(uTx0, vUV0);"
+	"}";
+
+/**
+ * Helper to compile a shader.
+ * 
+ * \param type shader type
+ * \param text shader source
+ * \return the shader ID (or zero if compilation failed)
+ */
+static GLuint compileShader(GLenum const type, const GLchar* text) {
+	GLuint shader = glCreateShader(type);
+	if (shader) {
+		glShaderSource (shader, 1, &text, NULL);
+		glCompileShader(shader);
+		GLint compiled;
+		glGetShaderiv(shader, GL_COMPILE_STATUS, &compiled);
+		if (compiled) {
+			return shader;
+		} else {
+			GLint logLen;
+			glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &logLen);
+			if (logLen > 1) {
+				GLchar*  logStr = malloc(logLen);
+				glGetShaderInfoLog(shader, logLen, NULL, logStr);
+			#ifndef NDEBUG
+				printf("Shader compilation error: %s\n", logStr);
+			#endif
+				free(logStr);
+			}
+			glDeleteShader(shader);
+		}
+	}
+	return 0;
+}
+
+//********************************** Helpers *********************************/
+
+/**
+ * Vertex position index.
+ */
+#define GL_VERT_POSXY_ID 0
+
+/**
+ * Vertex UV0 index.
+ */
+#define GL_VERT_TXUV0_ID 1
+
+ /**
+  * \c GL vec2 storage type.
+  */
+struct vec2 {
+	float x;
+	float y;
+};
+
+/**
+ * Combined 2D vertex and 2D texture coordinates.
+ */
+struct posTex2d {
+	struct vec2 pos;
+	struct vec2 uv0;
+};
+
+//****************************************************************************/
+
+/**
+ * Current quad rotation angle (in degrees, updated per frame).
+ */
+static float rotDeg = 0.0f;
+
+/**
+ * Emscripten (single) GL context.
+ */
+static EMSCRIPTEN_WEBGL_CONTEXT_HANDLE glCtx = 0;
+
+/**
+ * Emscripten resize handler.
+ */
+static EM_BOOL resize(int type, const EmscriptenUiEvent* e, void* data) {
+	double surfaceW;
+	double surfaceH;
+	if (emscripten_get_element_css_size   ("#canvas", &surfaceW, &surfaceH) == EMSCRIPTEN_RESULT_SUCCESS) {
+		emscripten_set_canvas_element_size("#canvas",  surfaceW,  surfaceH);
+		if (glCtx) {
+			glViewport(0, 0, (int) surfaceW, (int) surfaceH);
+		}
+	}
+	(void) type;
+	(void) data;
+	(void) e;
+	return EM_FALSE;
+}
+
+/**
+ * Boilerplate to create a WebGL context.
+ */
+static EM_BOOL initContext() {
+	// Default attributes
+	EmscriptenWebGLContextAttributes attr;
+	emscripten_webgl_init_context_attributes(&attr);
+	if ((glCtx = emscripten_webgl_create_context("#canvas", &attr))) {
+		// Bind the context and fire a resize to get the initial size
+		emscripten_webgl_make_context_current(glCtx);
+		emscripten_set_resize_callback(EMSCRIPTEN_EVENT_TARGET_DOCUMENT, NULL, EM_FALSE, resize);
+		resize(0, NULL, NULL);
+		return EM_TRUE;
+	}
+	return EM_FALSE;
+}
+
+/**
+ * Called once per frame (clears the screen and draws the rotating quad).
+ */
+static void tick() {
+	glClearColor(1.0f, 0.0f, 1.0f, 1.0f);
+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+	if (uRotId >= 0) {
+		glUniform1f(uRotId, rotDeg);
+		rotDeg += 0.1f;
+		if (rotDeg >= 360.0f) {
+			rotDeg -= 360.0f;
+		}
+	}
+
+	glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, 0);
+	glFlush();
+}
+
+/**
+ * Creates the GL context, shaders and quad data, decompresses the Zstd data
+ * and 'uploads' the resulting texture.
+ * 
+ * As a (naive) comparison, removing Zstd and building with "-Os -g0 s WASM=1
+ * -lGL emscripten.c" results in a 15kB WebAssembly file; re-adding Zstd
+ * increases the Wasm by 26kB.
+ */
+int main() {
+	if (initContext()) {
+		// Compile shaders and set the initial GL state
+		if ((progId = glCreateProgram())) {
+			 vertId = compileShader(GL_VERTEX_SHADER,   vertShader2D);
+			 fragId = compileShader(GL_FRAGMENT_SHADER, fragShader2D);
+			 
+			 glBindAttribLocation(progId, GL_VERT_POSXY_ID, "aPos");
+			 glBindAttribLocation(progId, GL_VERT_TXUV0_ID, "aUV0");
+			 
+			 glAttachShader(progId, vertId);
+			 glAttachShader(progId, fragId);
+			 glLinkProgram (progId);
+			 glUseProgram  (progId);
+			 uRotId = glGetUniformLocation(progId, "uRot");
+			 uTx0Id = glGetUniformLocation(progId, "uTx0");
+			 if (uTx0Id >= 0) {
+				 glUniform1i(uTx0Id, 0);
+			 }
+			
+			 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+			 glEnable(GL_BLEND);
+			 glDisable(GL_DITHER);
+
+			 glCullFace(GL_BACK);
+			 glEnable(GL_CULL_FACE);
+		}
+		
+		GLuint vertsBuf = 0;
+		GLuint indexBuf = 0;
+		GLuint txName   = 0;
+		// Create the textured quad (vert positions then UVs)
+		struct posTex2d verts2d[] = {
+			{{-0.85f, -0.85f}, {0.0f, 0.0f}}, // BL
+			{{ 0.85f, -0.85f}, {1.0f, 0.0f}}, // BR
+			{{-0.85f,  0.85f}, {0.0f, 1.0f}}, // TL
+			{{ 0.85f,  0.85f}, {1.0f, 1.0f}}, // TR
+		};
+		uint16_t index2d[] = {
+			0, 1, 2,
+			2, 1, 3,
+		};
+		glGenBuffers(1, &vertsBuf);
+		glBindBuffer(GL_ARRAY_BUFFER, vertsBuf);
+		glBufferData(GL_ARRAY_BUFFER,
+			sizeof(verts2d), verts2d, GL_STATIC_DRAW);
+		glVertexAttribPointer(GL_VERT_POSXY_ID, 2,
+			GL_FLOAT, GL_FALSE, sizeof(struct posTex2d), 0);
+		glVertexAttribPointer(GL_VERT_TXUV0_ID, 2,
+			GL_FLOAT, GL_FALSE, sizeof(struct posTex2d),
+				(void*) offsetof(struct posTex2d, uv0));
+		glGenBuffers(1, &indexBuf);
+		glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBuf);
+		glBufferData(GL_ELEMENT_ARRAY_BUFFER,
+			sizeof(index2d), index2d, GL_STATIC_DRAW);
+		glEnableVertexAttribArray(GL_VERT_POSXY_ID);
+		glEnableVertexAttribArray(GL_VERT_TXUV0_ID);
+		
+		// Decode the Zstd data and create the texture
+		if (ZSTD_decompress(dstDxt1, DXT1_256x256, srcZstd, sizeof srcZstd) == DXT1_256x256) {
+			glGenTextures(1, &txName);
+			glBindTexture(GL_TEXTURE_2D, txName);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+			glCompressedTexImage2D(GL_TEXTURE_2D, 0,
+				GL_COMPRESSED_RGB_S3TC_DXT1_EXT,
+					256, 256, 0, DXT1_256x256, dstDxt1);
+		} else {
+			printf("Failed to decode Zstd data\n");
+		}
+		emscripten_set_main_loop(tick, 0, EM_FALSE);
+		emscripten_exit_with_live_runtime();
+	}
+	return EXIT_FAILURE;
+}

src/dependencies/zstd-1.5.6/build/single_file_libs/examples/roundtrip.c

@@ -0,0 +1,83 @@
+/*
+ * \file roundtrip.c
+ * In this example we include \c zstd.h and compile separately the amalgamated
+ * \c zstd.c:
+ * \code
+ *	cc -Wall -Wextra -Werror -I. -Os -g0 zstd.c examples/roundtrip.c 
+ * \endcode
+ *
+ * \author Carl Woffenden, Numfum GmbH (released under a CC0 license)
+ */
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "zstd.h"
+
+//************************** Test Data (DXT texture) **************************/
+
+/**
+ * Raw test data (borrowed from the Emscripten example).
+ * \n
+ * See \c testcard.png for the original.
+ */
+static uint8_t const rawData[] = {
+#include "testcard-dxt1.inl"
+};
+
+#ifndef ZSTD_VERSION_MAJOR
+/*
+ * For the case where the decompression library hasn't been included we add
+ * dummy functions to fake the process and stop the buffers being optimised out.
+ */
+size_t ZSTD_compressBound(size_t maxSrc) {
+	return maxSrc + 32;
+}
+int ZSTD_maxCLevel(void) {
+	return 20;
+}
+size_t ZSTD_compress(void* dst, size_t dstLen, const void* src, size_t srcLen, int level) {
+	return (memcmp(dst, src, (srcLen < dstLen) ? srcLen : dstLen)) ? level : dstLen;
+}
+unsigned ZSTD_isError(size_t code) {
+	return ((int) code) < 0;
+}
+size_t ZSTD_decompress(void* dst, size_t dstLen, const void* src, size_t srcLen) {
+	return (memcmp(dst, src, (srcLen < dstLen) ? srcLen : dstLen)) ? 0 : dstLen;
+}
+#endif
+
+//*****************************************************************************/
+
+/**
+ * Simple single-file test to compress \c rawData, decompress the result, then
+ * compare the decompressed version with the original.
+ */
+int main() {
+	size_t bounds = ZSTD_compressBound(sizeof rawData);
+	void* compBuf = malloc(bounds);
+	void* testBuf = malloc(sizeof rawData);
+	int compare   = -1;
+	if (compBuf && testBuf) {
+		size_t compSize = ZSTD_compress(compBuf, bounds, rawData, sizeof rawData, ZSTD_maxCLevel());
+		if (!ZSTD_isError(compSize)) {
+			printf("Compression: PASSED (size: %lu, uncompressed: %lu)\n", (unsigned long) compSize, (unsigned long) (sizeof rawData));
+			size_t decSize = ZSTD_decompress(testBuf, sizeof rawData, compBuf, compSize);
+			if (!ZSTD_isError(decSize)) {
+				printf("Decompression: PASSED\n");
+				compare = memcmp(rawData, testBuf, decSize);
+				printf("Byte comparison: %s\n", (compare == 0) ? "PASSED" : "FAILED");
+			} else {
+				printf("Decompression: FAILED\n");
+			}
+		} else {
+			printf("Compression: FAILED\n");
+		}
+		free(compBuf);
+		free(testBuf);
+	}
+	return (compare == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
+}

src/dependencies/zstd-1.5.6/build/single_file_libs/examples/shell.html

@@ -0,0 +1,31 @@
+<!doctype html>
+<html>
+<head>
+	<meta charset="utf-8">
+	<meta name="viewport" content="width=device-width, maximum-scale=1.0, user-scalable=no, viewport-fit=cover" />
+	<meta name="apple-mobile-web-app-capable" content="yes" />
+	<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
+	<title>Emscripten Shell</title>
+	<style>
+body   {background:#333; font-family:"Verdana","Helvetica Neue","Helvetica","Arial",sans-serif; margin:1em 0;}
+#canvas{position:absolute; top:0px; left:0px; border:none; margin:0; width: 100%; height: 100%; overflow: hidden; display: block;}
+	</style>
+</head>
+<body>
+	<canvas id="canvas" oncontextmenu="event.preventDefault()"></canvas>
+	<script>
+function trace(msg) {
+	console.log(msg);
+}
+
+var Module = {
+	print: trace, printErr: trace, setStatus: trace, monitorRunDependencies: trace,
+	canvas: (function() {
+		return document.getElementById("canvas");
+	})(),
+	preRun: [], postRun: [],
+};
+</script>
+{{{ SCRIPT }}}
+</body>
+</html>

src/dependencies/zstd-1.5.6/build/single_file_libs/examples/simple.c

@@ -0,0 +1,75 @@
+/**
+ * \file simple.c
+ * Simple standalone example of using the single-file \c zstddeclib.
+ * 
+ * \note In this simple example we include the amalgamated source and compile
+ * just this single file, but we could equally (and more conventionally)
+ * include \c zstd.h and compile both this file and \c zstddeclib.c (the
+ * resulting binaries differ slightly in size but perform the same).
+ * 
+ * \author Carl Woffenden, Numfum GmbH (released under a CC0 license)
+ */
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../zstddeclib.c"
+
+//************************* Test Data (DXT texture) **************************/
+
+/**
+ * Raw 256x256 DXT1 data (used to compare the result).
+ * \n
+ * See \c testcard.png for the original.
+ */
+static uint8_t const rawDxt1[] = {
+#include "testcard-dxt1.inl"
+};
+
+/**
+ * Zstd compressed version of \c #rawDxt1.
+ * \n
+ * See \c testcard.png for the original.
+ */
+static uint8_t const srcZstd[] = {
+#include "testcard-zstd.inl"
+};
+
+/**
+ * Destination for decoding \c #srcZstd.
+ */
+static uint8_t dstDxt1[sizeof rawDxt1] = {};
+
+#ifndef ZSTD_VERSION_MAJOR
+/**
+ * For the case where the decompression library hasn't been included we add a
+ * dummy function to fake the process and stop the buffers being optimised out.
+ */
+size_t ZSTD_decompress(void* dst, size_t dstLen, const void* src, size_t srcLen) {
+	return (memcmp(dst, src, (srcLen < dstLen) ? srcLen : dstLen)) ? 0 : dstLen;
+}
+#endif
+
+//****************************************************************************/
+
+/**
+ * Simple single-file test to decompress \c #srcZstd into \c # dstDxt1 then
+ * compare the resulting bytes with \c #rawDxt1.
+ * \n
+ * As a (naive) comparison, removing Zstd and building with "-Os -g0 simple.c"
+ * results in a 44kB binary (macOS 10.14, Clang 10); re-adding Zstd increases
+ * the binary by 56kB (after calling \c strip).
+ */
+int main() {
+	size_t size = ZSTD_decompress(dstDxt1, sizeof dstDxt1, srcZstd, sizeof srcZstd);
+	int compare = memcmp(rawDxt1, dstDxt1, sizeof dstDxt1);
+	printf("Decompressed size: %s\n", (size == sizeof dstDxt1) ? "PASSED" : "FAILED");
+	printf("Byte comparison: %s\n", (compare == 0) ? "PASSED" : "FAILED");
+	if (size == sizeof dstDxt1 && compare == 0) {
+		return EXIT_SUCCESS;
+	}
+	return EXIT_FAILURE;
+}

src/dependencies/zstd-1.5.6/build/single_file_libs/examples/testcard-zstd.inl

@@ -0,0 +1,261 @@
+0x28, 0xb5, 0x2f, 0xfd, 0x60, 0x00, 0x7f, 0x6d, 0x61, 0x00, 0x0a, 0x66,
+0xec, 0x17, 0x48, 0x60, 0x1c, 0x5a, 0xc9, 0x5d, 0x1a, 0x38, 0x07, 0xe8,
+0xc5, 0x82, 0x99, 0x68, 0xe6, 0x95, 0x45, 0x58, 0x0d, 0x0c, 0xf3, 0x36,
+0xc8, 0xd9, 0x0f, 0x46, 0x2d, 0x68, 0x11, 0xf8, 0x31, 0x10, 0xa1, 0x1a,
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+0x59, 0x67, 0x00, 0xed, 0x66, 0x1d, 0xdd, 0xfa, 0x7b, 0xe2, 0x56, 0x89,
+0xd9, 0xa0, 0x4f, 0x41, 0x94, 0x28, 0xb8, 0xc6, 0xc7, 0x64, 0xde, 0x9b,
+0x64, 0x44, 0x33, 0x39, 0xb5, 0x6c, 0xb9, 0x42, 0xe7, 0x7e, 0x16, 0xd2,
+0x01, 0x12, 0x03, 0xb3, 0x48, 0x47, 0x6b, 0x75, 0x26, 0x19, 0x8c, 0xac,
+0x6f, 0xb1, 0x6f, 0xdc, 0x04, 0x27, 0x3a, 0x00, 0xd6, 0xae, 0xfa, 0xe1,
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+0xb0, 0x83, 0x16, 0xbb, 0xc6, 0x00, 0x6e, 0xf2, 0x6b, 0x40, 0x81, 0x01,
+0x67, 0x0e, 0xa9, 0x82, 0x23, 0x04, 0x34, 0xed, 0x02, 0xf5, 0xe4, 0x0e,
+0x58, 0xe8, 0x8a, 0x58, 0x57, 0xb0, 0x56, 0x65, 0x3d, 0x40, 0x64, 0x03,
+0x6e, 0x7b, 0x07, 0x20, 0x99, 0x90, 0x36, 0x95, 0x9f, 0xdf, 0x3d, 0xe8,
+0x00, 0xa0, 0x57, 0x8f, 0x6d, 0xa4, 0xb3, 0x1d, 0x7a, 0x06, 0xa8, 0x26,
+0x41, 0xb0, 0x8c, 0x9c, 0x10, 0x85, 0x6c, 0xb4, 0x31, 0xa6, 0x5b, 0x7a,
+0x10, 0x51, 0x15, 0x3c, 0xa2, 0x42, 0xd3, 0x23, 0x02, 0xc0, 0x17, 0x7e,
+0x03, 0x28, 0xba, 0xce, 0x9b, 0xae, 0xdd, 0x1a, 0x19, 0xd0, 0x15, 0xac,
+0xeb, 0x20, 0x3c, 0x3a, 0x00, 0xc6, 0xbb, 0x8a, 0xd5, 0x64, 0xc2, 0x21,
+0x1d, 0x6c, 0x15, 0x5a, 0xd3, 0x44, 0x98, 0x14, 0x95, 0xb3, 0xb7, 0xdd,
+0xa6, 0xea, 0x06, 0x54, 0x78, 0xc3, 0xe8, 0x79, 0x9b, 0x86, 0x29, 0x76,
+0x8b, 0x6b, 0xaa, 0x0d, 0xa8, 0x2f, 0x22, 0x2a, 0xeb, 0x68, 0x81, 0x6c,
+0x56, 0xfd, 0x79, 0xac, 0x79, 0x4b, 0xa0, 0x01, 0x3f, 0x17, 0x43, 0x82,
+0xb4, 0xd5, 0x00, 0x14, 0xb7, 0xf5, 0x00, 0xf4, 0x15, 0xa8, 0xd7, 0x4b,
+0xb1, 0xbc, 0xa8, 0x36, 0x98, 0xf0, 0x8c, 0xe7, 0xf4, 0x7b, 0x35, 0xd8,
+0xad, 0x0d, 0x5f, 0x9d, 0x96, 0xab, 0xed, 0x48, 0xe2, 0xdc, 0x1c, 0xbe,
+0x12, 0xfa, 0x41, 0x6f, 0xf5, 0x1e, 0xb6, 0x9f, 0xee, 0xac, 0x21, 0xf4,
+0xf6, 0x00, 0x38, 0xb1, 0x1f, 0xfd, 0xd0, 0x0e, 0xc7, 0xdd, 0xa0, 0x39,
+0x07, 0x8c, 0x35, 0x1f, 0x7e, 0xcc, 0xbf, 0xf6, 0xe0, 0x06, 0x66, 0x7d,
+0x10, 0x3f, 0xc5, 0x3e, 0xde, 0x42, 0xf9, 0x3d, 0x00, 0x54, 0x81, 0x67,
+0x8a, 0xe6, 0x63, 0x0d, 0x01, 0xd0, 0x31, 0xe0, 0x6e, 0xd0, 0xe1, 0x59,
+0xf6, 0x1b, 0xf7, 0x0d, 0x52, 0x06, 0x80, 0x61, 0x4f, 0xe8, 0x77, 0xdd,
+0x6f, 0x48, 0x20, 0x1d, 0xbb, 0x2a, 0x16, 0x8b, 0x54, 0x87, 0x92, 0x83,
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+0xb0, 0xd2, 0x2d, 0x28, 0x63, 0xf0, 0x6a, 0xc7, 0x80, 0x6a, 0x19, 0xb2,
+0x66, 0x51, 0xf3, 0xb1, 0x21, 0xa0, 0x48, 0xad, 0x1e, 0x80, 0x62, 0xaf,
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+0x38, 0x2c, 0x18, 0x83, 0x1f, 0x8f, 0x9b, 0x8e, 0x4d, 0x26, 0xcd, 0x34,
+0x0c, 0x66, 0x1d, 0x70, 0xb7, 0x01, 0xe6, 0x02, 0xa8, 0x51, 0x63, 0xcf,
+0xbb, 0x03, 0xca, 0x85, 0xc6, 0x9c, 0xf6, 0xf1, 0x51, 0xe0, 0x60, 0x07,
+0x40, 0x86, 0xf0, 0x1e, 0x6e, 0xef, 0x61, 0x10, 0xd9, 0x36, 0xcc, 0xfc,
+0x58, 0xe2, 0x37, 0x0d, 0x58, 0xb7, 0xbe, 0xca, 0xc9, 0xd8, 0xcd, 0xaa,
+0xd5, 0x5b, 0x77, 0x83, 0xcb, 0x0e, 0x30, 0xce, 0xc8, 0xb8, 0xcd, 0xbf,
+0x1e, 0x63, 0x04, 0xad, 0xb7, 0xcd, 0x43, 0x62, 0x4c, 0xe0, 0x1a, 0xd4,
+0x21, 0xe2, 0xdd, 0x33, 0xdf, 0xb1, 0xdd, 0xdc, 0x01, 0x22, 0x18, 0xce,
+0xa1, 0xd8, 0xcb, 0x67, 0xd5, 0x38, 0x4a, 0xbc, 0xd5, 0x81, 0x3d, 0x03,
+0x98, 0x35, 0x60, 0x41, 0x85, 0x0c, 0x1d, 0xe7, 0x76, 0xf8, 0x11, 0x52,
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+0xe5, 0x18, 0x61, 0x68, 0xba, 0x61, 0x8b, 0x09, 0xaa, 0xa3, 0x0c, 0x47,
+0x3c, 0x43, 0x03, 0xac, 0xa3, 0x2e, 0x5e, 0x72, 0x0c, 0x80, 0x19, 0x61,
+0xe6, 0x6e, 0x0e, 0xd9, 0xe8, 0xe8, 0xaf, 0x11, 0x9b, 0x4a, 0x73, 0x7a,
+0x61, 0x66, 0xf0, 0x54, 0x1d, 0x18, 0xc8, 0x23, 0x36, 0xbf, 0xb5, 0xf4,
+0x86, 0x54, 0xed, 0xb5, 0x91, 0xee, 0xb8, 0xbc, 0xde, 0xc3, 0x87, 0x9b,
+0x2f, 0x81, 0xf2, 0xee, 0xa3, 0xec, 0x02

src/dependencies/zstd-1.5.6/build/single_file_libs/zstd-in.c

@@ -0,0 +1,90 @@
+/**
+ * \file zstd.c
+ * Single-file Zstandard library.
+ *
+ * Generate using:
+ * \code
+ *	python combine.py -r ../../lib -x legacy/zstd_legacy.h -o zstd.c zstd-in.c
+ * \endcode
+ */
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * 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).
+ * You may select, at your option, one of the above-listed licenses.
+ */
+/*
+ * Settings to bake for the single library file.
+ *
+ * Note: It's important that none of these affects 'zstd.h' (only the
+ * implementation files we're amalgamating).
+ *
+ * Note: MEM_MODULE stops xxhash redefining BYTE, U16, etc., which are also
+ * defined in mem.h (breaking C99 compatibility).
+ *
+ * Note: the undefs for xxHash allow Zstd's implementation to coincide with
+ * standalone xxHash usage (with global defines).
+ *
+ * Note: if you enable ZSTD_LEGACY_SUPPORT the combine.py script will need
+ * re-running without the "-x legacy/zstd_legacy.h" option (it excludes the
+ * legacy support at the source level).
+ *
+ * Note: multithreading is enabled for all platforms apart from Emscripten.
+ */
+#define DEBUGLEVEL 0
+#define MEM_MODULE
+#undef  XXH_NAMESPACE
+#define XXH_NAMESPACE ZSTD_
+#undef  XXH_PRIVATE_API
+#define XXH_PRIVATE_API
+#undef  XXH_INLINE_ALL
+#define XXH_INLINE_ALL
+#define ZSTD_LEGACY_SUPPORT 0
+#ifndef __EMSCRIPTEN__
+#define ZSTD_MULTITHREAD
+#endif
+#define ZSTD_TRACE 0
+/* TODO: Can't amalgamate ASM function */
+#define ZSTD_DISABLE_ASM 1
+
+/* Include zstd_deps.h first with all the options we need enabled. */
+#define ZSTD_DEPS_NEED_MALLOC
+#define ZSTD_DEPS_NEED_MATH64
+#include "common/zstd_deps.h"
+
+#include "common/debug.c"
+#include "common/entropy_common.c"
+#include "common/error_private.c"
+#include "common/fse_decompress.c"
+#include "common/threading.c"
+#include "common/pool.c"
+#include "common/zstd_common.c"
+
+#include "compress/fse_compress.c"
+#include "compress/hist.c"
+#include "compress/huf_compress.c"
+#include "compress/zstd_compress_literals.c"
+#include "compress/zstd_compress_sequences.c"
+#include "compress/zstd_compress_superblock.c"
+#include "compress/zstd_compress.c"
+#include "compress/zstd_double_fast.c"
+#include "compress/zstd_fast.c"
+#include "compress/zstd_lazy.c"
+#include "compress/zstd_ldm.c"
+#include "compress/zstd_opt.c"
+#ifdef ZSTD_MULTITHREAD
+#include "compress/zstdmt_compress.c"
+#endif
+
+#include "decompress/huf_decompress.c"
+#include "decompress/zstd_ddict.c"
+#include "decompress/zstd_decompress.c"
+#include "decompress/zstd_decompress_block.c"
+
+#include "dictBuilder/cover.c"
+#include "dictBuilder/divsufsort.c"
+#include "dictBuilder/fastcover.c"
+#include "dictBuilder/zdict.c"

src/dependencies/zstd-1.5.6/build/single_file_libs/zstddeclib-in.c

@@ -0,0 +1,62 @@
+/**
+ * \file zstddeclib.c
+ * Single-file Zstandard decompressor.
+ *
+ * Generate using:
+ * \code
+ *	python combine.py -r ../../lib -x legacy/zstd_legacy.h -o zstddeclib.c zstddeclib-in.c
+ * \endcode
+ */
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ * 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).
+ * You may select, at your option, one of the above-listed licenses.
+ */
+/*
+ * Settings to bake for the standalone decompressor.
+ *
+ * Note: It's important that none of these affects 'zstd.h' (only the
+ * implementation files we're amalgamating).
+ *
+ * Note: MEM_MODULE stops xxhash redefining BYTE, U16, etc., which are also
+ * defined in mem.h (breaking C99 compatibility).
+ *
+ * Note: the undefs for xxHash allow Zstd's implementation to coincide with
+ * standalone xxHash usage (with global defines).
+ *
+ * Note: if you enable ZSTD_LEGACY_SUPPORT the combine.py script will need
+ * re-running without the "-x legacy/zstd_legacy.h" option (it excludes the
+ * legacy support at the source level).
+ */
+#define DEBUGLEVEL 0
+#define MEM_MODULE
+#undef  XXH_NAMESPACE
+#define XXH_NAMESPACE ZSTD_
+#undef  XXH_PRIVATE_API
+#define XXH_PRIVATE_API
+#undef  XXH_INLINE_ALL
+#define XXH_INLINE_ALL
+#define ZSTD_LEGACY_SUPPORT 0
+#define ZSTD_STRIP_ERROR_STRINGS
+#define ZSTD_TRACE 0
+/* TODO: Can't amalgamate ASM function */
+#define ZSTD_DISABLE_ASM 1
+
+/* Include zstd_deps.h first with all the options we need enabled. */
+#define ZSTD_DEPS_NEED_MALLOC
+#include "common/zstd_deps.h"
+
+#include "common/debug.c"
+#include "common/entropy_common.c"
+#include "common/error_private.c"
+#include "common/fse_decompress.c"
+#include "common/zstd_common.c"
+
+#include "decompress/huf_decompress.c"
+#include "decompress/zstd_ddict.c"
+#include "decompress/zstd_decompress.c"
+#include "decompress/zstd_decompress_block.c"

src/dependencies/zstd-1.5.6/lib/dll/example/build_package.bat

@@ -0,0 +1,20 @@
+@ECHO OFF
+MKDIR bin\dll bin\static bin\example bin\include
+COPY tests\fullbench.c bin\example\
+COPY programs\datagen.c bin\example\
+COPY programs\datagen.h bin\example\
+COPY programs\util.h bin\example\
+COPY programs\platform.h bin\example\
+COPY lib\common\mem.h bin\example\
+COPY lib\common\zstd_internal.h bin\example\
+COPY lib\common\error_private.h bin\example\
+COPY lib\common\xxhash.h bin\example\
+COPY lib\libzstd.a bin\static\libzstd_static.lib
+COPY lib\dll\libzstd.* bin\dll\
+COPY lib\dll\example\Makefile bin\example\
+COPY lib\dll\example\fullbench-dll.* bin\example\
+COPY lib\dll\example\README.md bin\
+COPY lib\zstd.h bin\include\
+COPY lib\common\zstd_errors.h bin\include\
+COPY lib\dictBuilder\zdict.h bin\include\
+COPY programs\zstd.exe bin\zstd.exe