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| author | Akira Yokosawa <akiyks@gmail.com> | 2024-04-06 05:04:16 +0300 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2024-04-10 23:10:13 +0300 |
| commit | 1e596d5eff3ddbaf2c5446adcc999b2516949556 (patch) | |
| tree | 6d5c2d6415e4eb815586434b072062514e1ebf57 /Documentation/sphinx | |
| parent | 9e192b39a5992d8b730383d57416964b44ea1041 (diff) | |
| download | linux-1e596d5eff3ddbaf2c5446adcc999b2516949556.tar.xz | |
docs: Detect variable fonts and suggest denylisting them
Fedora and openSUSE has started deploying "variable font" [1] format
Noto CJK fonts [2, 3]. "CJK" here stands for "Chinese, Japanese,
and Korean".
Unfortunately, XeTeX/XeLaTeX doesn't understand those fonts for
historical reasons and builds of translations.pdf end up in errors
if such fonts are present on the build host.
To help developers work around the issue, add a script to check the
presence of "variable font" Noto CJK fonts and to emit suggestions.
The script is invoked in the error path of "make pdfdocs" so that the
suggestions are made only when a PDF build actually fails.
The first suggestion is to denylist those "variable font" files by
activating a per-user and command-local fontconfig setting.
For further info and backgrounds, please refer to the header comment
of scripts/check-variable-font.sh newly added in this commit.
Link: [1] https://en.wikipedia.org/wiki/Variable_font
Link: [2] https://fedoraproject.org/wiki/Changes/Noto_CJK_Variable_Fonts
Link: [3] https://build.opensuse.org/request/show/1157217
Reported-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/8734tqsrt7.fsf@meer.lwn.net/
Reported-by: Иван Иванович <relect@bk.ru>
Link: https://lore.kernel.org/linux-doc/1708585803.600323099@f111.i.mail.ru/
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20240406020416.25096-1-akiyks@gmail.com
Diffstat (limited to 'Documentation/sphinx')
| -rw-r--r-- | Documentation/sphinx/kerneldoc-preamble.sty | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/Documentation/sphinx/kerneldoc-preamble.sty b/Documentation/sphinx/kerneldoc-preamble.sty index 3092df051c95..d479cfa73658 100644 --- a/Documentation/sphinx/kerneldoc-preamble.sty +++ b/Documentation/sphinx/kerneldoc-preamble.sty @@ -215,11 +215,12 @@ due to the lack of suitable font families and/or the texlive-xecjk package. - If you want them, please install ``Noto Sans CJK'' font families - along with the texlive-xecjk package by following instructions from + If you want them, please install non-variable ``Noto Sans CJK'' + font families along with the texlive-xecjk package by following + instructions from \sphinxcode{./scripts/sphinx-pre-install}. - Having optional ``Noto Serif CJK'' font families will improve - the looks of those translations. + Having optional non-variable ``Noto Serif CJK'' font families will + improve the looks of those translations. \end{sphinxadmonition}} \newcommand{\kerneldocEndSC}{} \newcommand{\kerneldocBeginTC}[1]{} |