Gentooでlocale周りのエラーが出た場合

Gentooで /etc/env.d/02locale が正しく設定されてなくてlocale周りのエラーが出たので対処方法をメモ。

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USEフラグの管理にはflaggieを使いますが、こんな感じのエラーを吐いてしまいました。

localhost ~ # flaggie -perl dev-vcs/git
Traceback (most recent call last):
  File "/usr/lib/python-exec/python3.3/flaggie", line 25, in <module>
    sys.exit(main(sys.argv))
  File "/usr/lib64/python3.3/site-packages/flaggie/cli.py", line 80, in main
    locale.setlocale(locale.LC_ALL, '')
  File "/usr/lib64/python3.3/locale.py", line 541, in setlocale
    return _setlocale(category, locale)
locale.Error: unsupported locale setting

さっそくlocale設定を確認。

localhost ~ # eselect locale list
/usr/bin/locale: Cannot set LC_CTYPE to default locale: No such file or directory
Available targets for the LANG variable:
  [1]   C
  [2]   POSIX
  [3]   en_US
  [4]   en_US.iso88591
  [5]   en_US.utf8
  [6]   ja_JP
  [7]   ja_JP.eucjp
  [8]   ja_JP.ujis
  [9]   ja_JP.utf8
  [10]  japanese
  [11]  japanese.euc
  [ ]   (free form)

設定されてないですね。
ja_JP.utf8 にでも設定して、 env-update && source /etc/profice 。

localhost ~ # eselect locale set 9
/usr/bin/locale: Cannot set LC_CTYPE to default locale: No such file or directory
Setting LANG to ja_JP.utf8 ...
Run ". /etc/profile" to update the variable in your shell.
localhost ~ # env-update 
>>> Regenerating /etc/ld.so.cache...
localhost ~ # source /etc/profile

しかし同じエラーが・・・。
なんか LC_ALL を読もうとして失敗してる…?

localhost ~ # flaggie 
Traceback (most recent call last):
  File "/usr/lib/python-exec/python3.3/flaggie", line 25, in <module>
    sys.exit(main(sys.argv))
  File "/usr/lib64/python3.3/site-packages/flaggie/cli.py", line 80, in main
    locale.setlocale(locale.LC_ALL, '')
  File "/usr/lib64/python3.3/locale.py", line 541, in setlocale
    return _setlocale(category, locale)
locale.Error: unsupported locale setting

eselect locale set で設定されるのは LANG だけのようなので、

localhost ~ # grep -E '^\s*[^#;]' /etc/env.d/02locale 
LANG="ja_JP.utf8"

LC_ALL を書いてみます。
再び env-update && source /etc/profice ！

localhost ~ # vi /etc/env.d/02locale 
localhost ~ # grep -E '^\s*[^#;]' /etc/env.d/02locale 
LC_ALL="ja_JP.utf8"
LANG="ja_JP.utf8"
localhost ~ # env-update 
>>> Regenerating /etc/ld.so.cache...
localhost ~ # source /etc/profile

こんどはうまくいきました♪
flaggie って色んなオプションあるんですね。

localhost ~ # flaggie 
Synopsis:
flaggie [<options>] [<global-actions>] [<packages> <actions>] [...]

Options:
    --quiet         Silence argument errors and warnings
    --strict        Abort if at least a single flag is invalid

    --drop-ineffective  Drop ineffective flags (those which are
                overriden by later declarations)
    --sort-entries      Sort package.* file entries by package
                (please note this will drop comments)
    --sort-flags        Sort package.* flags by name
    --sort          Shorthand for --sort-entries and --sort-flags
    --cleanup       Shorthand for --drop-ineffective and --sort

    --drop-unmatched-pkgs   Drop packages which no longer are available
                in portdb
    --drop-unmatched-flags  Drop flags which are not found in package's
                IUSE, KEYWORDS and/or LICENSE variables
    --destructive-cleanup   Shorthand for all of the above

    --migrate-files     Migrate the outdated files to newer variants
                (package.keywords -> package.accept_keywords)

Global actions are applied to the make.conf file. Actions are applied to
the package.* files, for the packages preceding them.

An action can be one of:
    +arg    explicitly enable arg
    -arg    explicitly disable arg
    %arg    reset arg to the default state (remove it from the file)
    ?arg    print the effective status of arg (due to the file)

The action argument must be either a USE flag, a keyword or a license name.
For the '%' and '?' actions, it can be also one of 'use::', 'kw::' or 'lic::'
in order to apply the action to all of the flags, keywords or licenses
respectively.

A package specification can be any atom acceptable for Portage (in the same
format as taken by emerge).