mecab-ipadic-NEologdのインストールでエラー「unxz is not found.」が出た時

mecabの辞書であるmecab-ipadic-NEologdをインストールする時「unxz is not found.」がエラーが発生してインストールが失敗する場合があります。

エラーの出力例

$ git clone --depth 1 https://github.com/neologd/mecab-ipadic-neologd.git

$ cd mecab-ipadic-neologd

$ ./bin/install-mecab-ipadic-neologd -n
[install-mecab-ipadic-NEologd] : Start..
[install-mecab-ipadic-NEologd] : Check the existance of libraries
[install-mecab-ipadic-NEologd] :     find => ok
[install-mecab-ipadic-NEologd] :     sort => ok
[install-mecab-ipadic-NEologd] :     head => ok
[install-mecab-ipadic-NEologd] :     cut => ok
[install-mecab-ipadic-NEologd] :     egrep => ok
[install-mecab-ipadic-NEologd] :     mecab => ok
[install-mecab-ipadic-NEologd] :     mecab-config => ok
[install-mecab-ipadic-NEologd] :     make => ok
[install-mecab-ipadic-NEologd] :     curl => ok
[install-mecab-ipadic-NEologd] :     sed => ok
[install-mecab-ipadic-NEologd] :     cat => ok
[install-mecab-ipadic-NEologd] :     diff => ok
[install-mecab-ipadic-NEologd] :     tar => ok
[install-mecab-ipadic-NEologd] :     unxz is not found.

$

これは、インストールを行っているPCにxzコマンドが存在していないためです。

解決方法

macで作業している場合、brewだと下記のコマンドでxzコマンドをインストールすればOKです。

$ brew install xz

$ ./bin/install-mecab-ipadic-neologd -n
[install-mecab-ipadic-NEologd] : Start..
[install-mecab-ipadic-NEologd] : Check the existance of libraries
[install-mecab-ipadic-NEologd] :     find => ok
[install-mecab-ipadic-NEologd] :     sort => ok
[install-mecab-ipadic-NEologd] :     head => ok
[install-mecab-ipadic-NEologd] :     cut => ok
[install-mecab-ipadic-NEologd] :     egrep => ok
[install-mecab-ipadic-NEologd] :     mecab => ok
[install-mecab-ipadic-NEologd] :     mecab-config => ok
[install-mecab-ipadic-NEologd] :     make => ok
[install-mecab-ipadic-NEologd] :     curl => ok
[install-mecab-ipadic-NEologd] :     sed => ok
[install-mecab-ipadic-NEologd] :     cat => ok
[install-mecab-ipadic-NEologd] :     diff => ok
[install-mecab-ipadic-NEologd] :     tar => ok
[install-mecab-ipadic-NEologd] :     unxz => ok
[install-mecab-ipadic-NEologd] :     xargs => ok
[install-mecab-ipadic-NEologd] :     grep => ok
[install-mecab-ipadic-NEologd] :     iconv => ok
[install-mecab-ipadic-NEologd] :     patch => ok
[install-mecab-ipadic-NEologd] :     which => ok
[install-mecab-ipadic-NEologd] :     file => ok
[install-mecab-ipadic-NEologd] :     openssl => ok
[install-mecab-ipadic-NEologd] :     awk => ok

[install-mecab-ipadic-NEologd] : mecab-ipadic-NEologd is already up-to-date

[install-mecab-ipadic-NEologd] : mecab-ipadic-NEologd will be install to /usr/local/lib/mecab/dic/mecab-ipadic-neologd
...

[install-mecab-ipadic-NEologd] : Finish..

作業が進み、Finishが出力されればインストールは成功です。

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