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This package was approved by moderator flcdrg on 1/13/2018.

Neko is a lightweight and yet well optimized virtual machine. The VM can be easily embedded into any application and your libraries can be accessed using the C foreign function interface.

To install Neko, run the following command from the command line or from PowerShell:

C:\> choco install neko

To upgrade Neko, run the following command from the command line or from PowerShell:

C:\> choco upgrade neko


  • Show
    [![TravisCI Build Status](](
    [![AppVeyor Build Status](](
    # Neko Virtual Machine
    ## Snapshot Builds
    ### Windows
    Compiled binaries can be found in the "artifacts" tab of each [AppVeyor build](
    ### Mac
    Neko snapshot of the latest master branch can be built using [homebrew]( in a single command: `brew install neko --HEAD`. It will install required dependencies, build, and install Neko to the system. The binaries can be found at `brew --prefix neko`.
    Use `brew reinstall neko --HEAD` to upgrade in the future.
    ### Linux
    Ubuntu users can use the [Haxe Foundation snapshots PPA]( to install a Neko package built from the latest master branch. To do so, run the commands as follows:
    sudo add-apt-repository ppa:haxe/snapshots -y
    sudo apt-get update
    sudo apt-get install neko -y
    Users of other Linux/FreeBSD distributions should build Neko from source. See below for additional instructions.
    ## Build instruction
    Neko can be built using CMake (version 3.x is recommended) and one of the C compilers listed as follows:
     * Windows: Visual Studio 2010 / 2013 / 2015 / 2017 
     * Mac: XCode (with its "Command line tools")
     * Linux: gcc (can be obtained by installing the "build-essential" Debian/Ubuntu package)
    Neko needs to link with various third-party libraries, which are summarized as follows:
    | library / tool                          | OS          | Debian/Ubuntu package                                     |
    | Boehm GC                                | all         | libgc-dev                                                 |
    | OpenSSL                                 | all         | libssl-dev                                                |
    | PCRE                                    | all         | libpcre3-dev                                              |
    | zlib                                    | all         | zlib1g-dev                                                |
    | Apache 2.2 / 2.4, with apr and apr-util | all         | apache2-dev                                               |
    | MariaDB / MySQL (Connector/C)           | all         | libmariadb-client-lgpl-dev-compat (or libmysqlclient-dev) |
    | SQLite                                  | all         | libsqlite3-dev                                            |
    | mbed TLS                                | all         | libmbedtls-dev                                            |
    | GTK+2                                   | Linux       | libgtk2.0-dev                                             |
    On Windows, CMake will automatically download and build the libraries in the build folder during the build process. However, you need to install [Perl]( manually because OpenSSL needs it for configuration. On Mac/Linux, you should install the libraries manually to your system before building Neko, or use the `STATIC_DEPS` CMake option, which will be explained in [CMake options](#cmake-options).
    ### Building on Mac/Linux
    # make a build directory, and change to it
    mkdir build
    cd build
    # run cmake
    cmake ..
    # let's build, the outputs can be located in the "bin" directory
    # install it if you want
    # default installation prefix is /usr/local
    make install
    ### Building on Windows
    Below is the instructions of building Neko in a Visual Studio command prompt.
    You may use the CMake GUI and Visual Studio to build it instead.
    # make a build directory, and change to it
    mkdir build
    cd build
    # run cmake specifying the visual studio version you need 
    # Visual Studio 12 2013, Visual Studio 14 2015, Visual Studio 15 2017
    # you can additionally specify platform via -A switch (x86, x64)
    cmake -G "Visual Studio 12 2013" ..
    # let's build, the outputs can be located in the "bin" directory
    msbuild ALL_BUILD.vcxproj /p:Configuration=Release
    # install it if you want
    # default installation location is C:\HaxeToolkit\neko
    msbuild INSTALL.vcxproj /p:Configuration=Release
    ### CMake options
    A number of options can be used to customize the build. They can be specified in the CMake GUI, or passed to `cmake` in command line as follows:
    cmake "-Doption=value" ..
    #### NDLLs
    Settings that allow to exclude libraries and their dependencies from the build; available on all platforms. By default all are `ON`:
    - `WITH_REGEXP` - Build Perl-compatible regex support
    - `WITH_UI` - Build GTK-2 UI support
    - `WITH_SSL` - Build SSL support
    - `WITH_MYSQL` - Build MySQL support
    - `WITH_SQLITE` - Build Sqlite support
    - `WITH_APACHE` - Build Apache modules
    #### `STATIC_DEPS`
    Default value: `all` for Windows, `none` otherwise
    It defines the dependencies that should be linked statically. Can be `all`, `none`, or a list of library names (e.g. `BoehmGC;Zlib;OpenSSL;MariaDBConnector;PCRE;Sqlite3;APR;APRutil;Apache;MbedTLS`).
    CMake will automatically download and build the specified dependencies into the build folder. If a library is not present in this list, it should be installed manually, and it will be linked dynamically.
    All third-party libraries, except GTK+2 (Linux), can be linked statically. We do not support statically linking GTK+2 due to the difficulty of building it and its own dependencies.
    #### `RELOCATABLE`
    Available on Mac/Linux. Default value: `ON`
    Set RPATH to `$ORIGIN` (Linux) / `@executable_path` (Mac). It allows the resulting Neko VM executable to locate libraries (e.g. "libneko" and ndll files) in its local directory, such that the libraries need not be installed to "/usr/lib" or "/usr/local/lib".
    Default `OFF`.
    Disable Neko JIT. By default, Neko JIT will be enabled for platforms it supports. Setting this to `ON` disable JIT for all platforms.
    #### `NEKO_JIT_DEBUG`
    Default `OFF`.
    Debug Neko JIT.
    #### `RUN_LDCONFIG`
    Available on Linux. Default value: `ON`
    Whether to run `ldconfig` automatically after `make install`. It is for refreshing the shared library cache such that "libneko" can be located correctly by the Neko VM.
  • regexp.ndll
  • sqlite.ndll
  • ssl.ndll
  • std.ndll
  • ui.ndll
    Packager (Andy Li) is a member of the Haxe Foundation.
    The files included in this package are extracted from the Windows binary archive available at
  • zlib.ndll
  • nekotools.exe Show
    md5: 6DA98C076FA57398D714B20A71A10722 | sha1: 8B12F9EB0B9CBBD224259DDA61C682D34FE294C9 | sha256: 598791A977E9DAF520E33E675456A32C741236D13B50D26D4F172C3A93075D42 | sha512: 17CB61C75566E24FE0D9ADCACF60028CE203572C32D95E5C35356A4566D9CAAC274F3D2F2E1AC79B944EE013AEC4ADBB365AAA716FB5984DF3050273C53D377C
  • nekoml.std
  • nekoml.exe Show
    md5: B8A1EF7D57778E42F5AD583635995436 | sha1: E35033827DCA60DB96B5DB4399D5103AC09C5E04 | sha256: E999C564764BECB602BB5D9534A902C117642D663E1691F2618343B9F26A91D0 | sha512: 3ADDE7F09D316DE128C87B3BE0173661772CE4119947E423614228A42706E7D3DDBAA61E0C3A92412CA01F0B7B2389EEEAB4A191BA28AAEAAC42031303DA8597
  • nekoc.exe Show
    md5: 60A055790D787BD9F7B19CCF7638A74F | sha1: 3F281570644610EEACDD8AEBBE6555575E002990 | sha256: 3F3302A335D6AFE557A84E4A7DDA41872A8294C014B60B1B2154E4873C8BC566 | sha512: 56F9D97E121757F39BD73BFD5C74AB705BB25EB5E5E3247301785C5FD5E9C69C84DAEFDFCD6565C501B96C97B2528DB1A26547BC1A4ECFA520244FE8F92BA5A6
  • neko.lib
  • neko.exe Show
    md5: EBA7D1C71C905609F8382A2E173B6667 | sha1: 58140F26D53C3FB969825EF19C16E428445C6A08 | sha256: E81BC61F1E4BF440052EEAFB75D08FF03145F27DD135BAC59AD87E7C9DD548D4 | sha512: 64CA20AC1439F86F229C150AE8E66B204874A0A3DD37FFBFE9FE8FA71800D75FD8745675CD1CBA37DC383C8AEAE4F7EC9FA889CE7E446B2CD8D28EF6A5421691
  • neko.dll Show
    md5: 83C64B7778569A6CC4213BC04090B5FD | sha1: AB473304DF2BA030E1AB940E8424B6FA8E58BBB9 | sha256: 06A50C1C65F671FA0A710893150BA4075A3354F2EF4308C4AB350BD005088CAD | sha512: 8402D4EBD1D6F25870894384F641532EA5905DCABE72E668DA54C59FE88F363EDEA1489162DCF52559A61F7EDBB64F47206E0521DC406B7FC6F62096E804A1A2
  • mysql5.ndll
  • mysql.ndll
  • mod_tora2.ndll
  • mod_neko2.ndll
  • include\neko_vm.h
  • include\neko_mod.h
  • include\neko_elf.h
  • include\neko.h
  • gcmt-dll.dll Show
    md5: E5DA902C53944489340E9D1E3A02AE94 | sha1: 9B20B75EF27C0BB5763FCC47C9DB1A81BF2DCCA4 | sha256: 832E3B36E543E92AE4E3F6F501BE220DC5E650DF86ABEACCC2ADDA0B7119AA98 | sha512: 267EC97F519D5BF98F82A596CB26A82D3E665D36C436576536EA6A243FCC1E43FB48646C3BADAAF0DD631EEAA8A66A352C9FB4899D4D2488E44340FC34BF5285
  • CMake\NekoTargets.cmake
  • CMake\NekoTargets-release.cmake
  • CMake\NekoConfigVersion.cmake
  • CMake\NekoConfig.cmake
  • chocolateyUninstall.ps1 Show
    $scriptPath = (Split-Path -parent $MyInvocation.MyCommand.Definition)
    # Remove the dll files from C:\ProgramData\chocolatey\bin
    $chocoBin = Join-Path $env:ChocolateyInstall 'bin'
    $dllFiles = @('gcmt-dll.dll', 'neko.dll')
    foreach ($file in $dllFiles) {
        $dllFile = Join-Path $chocoBin $file
        del "$dllFile"
    Uninstall-ChocolateyEnvironmentVariable -VariableName NEKOPATH
  • chocolateyInstall.ps1 Show
    $scriptPath = (Split-Path -parent $MyInvocation.MyCommand.Definition)
    # Install the dll files to C:\ProgramData\chocolatey\bin
    # It is because they are loaded by other neko binaries, e.g. haxelib.exe
    $chocoBin = Join-Path $env:ChocolateyInstall 'bin'
    $dllFiles = @('gcmt-dll.dll', 'neko.dll')
    foreach ($file in $dllFiles) {
        $dllFile = Join-Path $scriptPath $file
        copy "$dllFile" "$chocoBin"
    # Set NEKOPATH such that the ndll files can be loaded.
    Install-ChocolateyEnvironmentVariable -VariableName NEKOPATH -VariableValue $scriptPath

Virus Scan Results

In cases where actual malware is found, the packages are subject to removal. Software sometimes has false positives. Moderators do not necessarily validate the safety of the underlying software, only that a package retrieves software from the official distribution point and/or validate embedded software against official distribution point (where distribution rights allow redistribution).

Chocolatey Pro provides runtime protection from possible malware.


Package Maintainer(s)

Software Author(s)

  • Haxe Foundation


Release Notes

Version History

Version Downloads Last updated Status
Neko 2.1.0 7139 Sunday, May 8, 2016 approved
Neko 2.0.0 2908 Monday, March 16, 2015 approved

Discussion for the Neko Package

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  • This discussion is only about Neko and the Neko package. If you have feedback for Chocolatey, please contact the google group.
  • This discussion will carry over multiple versions. If you have a comment about a particular version, please note that in your comments.
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