# 2.11. Others

This section describes how to install Groonga from source on UNIX like environment.

To get more detail about installing Groonga from source on the specific environment, find the document for the specific environment from Install.

## 2.11.1. Dependencies

Groonga doesn’t require any special libraries but requires some tools for build.

### 2.11.1.1. Tools

Here are required tools:

> - `wget`, `curl` or Web browser for downloading source archive

> - `tar` and `gzip` for extracting source archive

> - shell (many shells such as `dash`, `bash` and `zsh` will work)

> - C compiler and C++ compiler (`gcc` and `g++` are supported but other compilers may work)

> - `make` (GNU make is supported but other make like BSD make will work)

You must get them ready.

You can use CMake instead of shell but this document doesn’t describe about building with CMake.

Here are optional tools:

> - pkg-config for detecting libraries

> - sudo for installing built Groonga

You must get them ready if you want to use optional libraries.

### 2.11.1.2. Libraries

All libraries are optional. Here are optional libraries:

> - MeCab for tokenizing full-text search target document by morphological analysis

> - KyTea for tokenizing full-text search target document by morphological analysis

> - ZeroMQ for Suggest

> - libevent for Suggest

> - MessagePack for supporting MessagePack output and Suggest

> - libedit for command line editing in groonga executable file

> - zlib for compressing column value

> - LZ4 for compressing column value

> - Zstandard for compressing column value

If you want to use those all or some libraries, you need to install them before installing Groonga.

## 2.11.2. Build from source

Groonga uses GNU build system. So the following is the simplest build steps:

    % wget https://packages.groonga.org/source/groonga/groonga-12.0.2.tar.gz
    % tar xvzf groonga-12.0.2.tar.gz
    % cd groonga-12.0.2
    % ./configure
    % make
    % sudo make install

After the above steps, groonga executable file is found in `/usr/local/bin/groonga`.

The default build will work well but you can customize Groonga at `configure` step.

The following describes details about each step.

### 2.11.2.1. `configure`

First, you need to run `configure`. Here are important `configure` options:

#### 2.11.2.1.1. `--prefix=PATH`

Specifies the install base directory. Groonga related files are installed under `${PATH}/` directory.

The default is `/usr/local`. In this case, groonga executable file is installed into `/usr/local/bin/groonga`.

Here is an example that installs Groonga into `~/local` for an user use instead of system wide use:

    % ./configure --prefix=$HOME/local

#### 2.11.2.1.2. `--localstatedir=PATH`

Specifies the base directory to place modifiable file such as log file, PID file and database files. For example, log file is placed at `${PATH}/log/groonga.log`.

The default is `/usr/local/var`.

Here is an example that system wide `/var` is used for modifiable files:

    % ./configure --localstatedir=/var

#### 2.11.2.1.3. `--with-log-path=PATH`

Specifies the default log file path. You can override the default log path is groonga executable file command’s `--log-path` command line option. So this option is not critical build option. It’s just for convenient.

The default is `/usr/local/var/log/groonga.log`. The `/usr/local/var` part is changed by `--localstatedir` option.

Here is an example that log file is placed into shared NFS directory `/nfs/log/groonga.log`:

    % ./configure --with-log-path=/nfs/log/groonga.log

#### 2.11.2.1.4. `--with-default-encoding=ENCODING`

Specifies the default encoding. Available encodings are `euc_jp`, `sjis`, `utf8`, `latin1`, `koi8r` and `none`.

The default is `utf8`.

Here is an example that Shift_JIS is used as the default encoding:

    % ./configure --with-default-encoding=sjis

#### 2.11.2.1.5. `--with-match-escalation-threshold=NUMBER`

Specifies the default match escalation threshold. See match_escalation_threshold about match escalation threshold. -1 means that match operation never escalate.

The default is 0.

Here is an example that match escalation isn’t used by default:

    % ./configure --with-match-escalation-threshold=-1

#### 2.11.2.1.6. `--with-zlib`

Enables column value compression by zlib.

The default is disabled.

Here is an example that enables column value compression by zlib:

    % ./configure --with-zlib

#### 2.11.2.1.7. `--with-lz4`

Enables column value compression by LZ4.

The default is disabled.

Here is an example that enables column value compression by LZ4:

    % ./configure --with-lz4

#### 2.11.2.1.8. `--with-message-pack=MESSAGE_PACK_INSTALL_PREFIX`

Specifies where MessagePack is installed. If MessagePack isn’t installed with `--prefix=/usr`, you need to specify this option with path that you use for building MessagePack.

If you installed MessagePack with `--prefix=$HOME/local` option, you should specify `--with-message-pack=$HOME/local` to Groonga’s `configure`.

The default is `/usr`.

Here is an example that uses MessagePack built with `--prefix=$HOME/local` option:

    % ./configure --with-message-pack=$HOME/local

#### 2.11.2.1.9. `--with-munin-plugins`

Installs Munin plugins for Groonga. They are installed into `${PREFIX}/share/groonga/munin/plugins/`.

Those plugins are not installed by default.

Here is an example that installs Munin plugins for Groonga:

    % ./configure --with-munin-plugins

#### 2.11.2.1.10. `--with-package-platform=PLATFORM`

Installs platform specific system management files such as init script. Available platforms are `centos`, `centos5`, `centos6`, `centos7` and `fedora`. Platform starts with `centos` are for Red Hat and Red Hat clone distributions such as CentOS. If `centos` is specified, distribution version is guessed. `fedora` is for Fedora.

Those system management files are not installed by default.

Here is an example that installs CentOS specific system management files:

    % ./configure --with-package-platform=centos

#### 2.11.2.1.11. `--help`

Shows all `configure` options.

### 2.11.2.2. `make`

`configure` is succeeded, you can build Groonga by `make`:

    % make

If you have multi cores CPU, you can make faster by using `-j` option. If you have 4 cores CPU, it’s good for using `-j4` option:

    % make -j4

If you get some errors by `make`, please report them to us: How to report a bug

### 2.11.2.3. `make install`

Now, you can install built Groonga!:

    % sudo make install

If you have write permission for `${PREFIX}`, you don’t need to use `sudo`. e.g. `--prefix=$HOME/local` case. In this case, use `make install`:

    % make install

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