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bug#41747: 27.0.91; Add default fontset setup for "Symbols and Pictograp
From: |
Kévin Le Gouguec |
Subject: |
bug#41747: 27.0.91; Add default fontset setup for "Symbols and Pictographs Extended-A" |
Date: |
Tue, 09 Jun 2020 11:27:49 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
Richard Stallman <rms@gnu.org> writes:
> This sounds like a possibly important issue, though perhaps mostly
> independent of Emacs. Would someone who knows the Symbols situation
> well please offer to explain this to me?
Here's my attempt at a summary; corrections welcome:
- Up to 2018, the Unicode Fonts for Ancient Scripts (UFAS) project
released its fonts under terms that suggested a free license[1]:
- One of these fonts, Symbola, has an exhaustive coverage of Unicode
"symbol" characters, so exhaustive that we use it in our default
fontset for various "symbol subgroups"[2].
- In 2018, the license for UFAS has changed to the document I referenced
in my earlier message[3].
- Most GNU/Linux distributions reached the same conclusion: the terms of
this new license does not allow redistribution under any way, shape or
form[4]. Therefore, these distros now only ship the last free-license
version of Symbola.
- New versions of Unicode have come and gone since then; they have
introduced new blocks and new characters (cf. the initial bug report).
- Newer versions of Symbola have followed like clockwork to cover the
latest "symbol" characters.
- Unfortunately, these new versions fall under the new, non-free
license. IIUC this makes them unsuitable for Emacs's default fontset.
Distro developers have reached out to the UFAS developer (as recently as
two months ago for Gentoo[4]; see also Fedora thread linked earlier),
but they could not convince him to switch back to a free license.
[1] The terms have changed over the years; see for example:
https://web.archive.org/web/20150316132421/http://users.teilar.gr/~g1951d/
> *in lieu of a licence* Fonts and documents in this site are not pieces
> of property or merchandise items; they carry no trademark, copyright,
> license or other market tags; they are free for any use. George Douros
https://web.archive.org/web/20180212144935/http://users.teilar.gr/~g1951d/
> In lieu of a licence; fonts and documents in this site are free for
> any use; George Douros
[2] M-x find-library RET fontset RET C-s Symbola
[3] https://dn-works.com/wp-content/uploads/2020/UFAS-Docs/License.pdf
[4] In my earlier message I linked to the relevant NixOS, Arch Linux and
Fedora threads; for good measure, here are Debian, Ubuntu and
Gentoo:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=897047
https://bugs.launchpad.net/ubuntu/+source/ttf-ancient-fonts/+bug/1824065
https://www.mail-archive.com/gentoo-dev@lists.gentoo.org/msg88799.html
- bug#41747: 27.0.91; Add default fontset setup for "Symbols and Pictographs Extended-A", (continued)
- bug#41747: 27.0.91; Add default fontset setup for "Symbols and Pictographs Extended-A", Eli Zaretskii, 2020/06/09
- bug#41747: 27.0.91; Add default fontset setup for "Symbols and Pictographs Extended-A", Richard Stallman, 2020/06/09
- bug#41747: 27.0.91; Add default fontset setup for "Symbols and Pictographs Extended-A", Kévin Le Gouguec, 2020/06/10
- bug#41747: 27.0.91; Add default fontset setup for "Symbols and Pictographs Extended-A", Eli Zaretskii, 2020/06/10
- bug#41747: 27.0.91; Add default fontset setup for "Symbols and Pictographs Extended-A", Alan Third, 2020/06/11
- bug#41747: 27.0.91; Add default fontset setup for "Symbols and Pictographs Extended-A", Alan Third, 2020/06/11
- bug#41747: 27.0.91; Add default fontset setup for "Symbols and Pictographs Extended-A", Eli Zaretskii, 2020/06/10
- bug#41747: 27.0.91; Add default fontset setup for "Symbols and Pictographs Extended-A", Richard Stallman, 2020/06/10
- bug#41747: 27.0.91; Add default fontset setup for "Symbols and Pictographs Extended-A", Eli Zaretskii, 2020/06/09
- bug#41747: 27.0.91; Add default fontset setup for "Symbols and Pictographs Extended-A", Richard Stallman, 2020/06/08
- bug#41747: 27.0.91; Add default fontset setup for "Symbols and Pictographs Extended-A",
Kévin Le Gouguec <=
- bug#41747: 27.0.91; Add default fontset setup for "Symbols and Pictographs Extended-A", Eli Zaretskii, 2020/06/09
- bug#41747: 27.0.91; Add default fontset setup for "Symbols and Pictographs Extended-A", Richard Stallman, 2020/06/09
- bug#41747: 27.0.91; Add default fontset setup for "Symbols and Pictographs Extended-A", Kévin Le Gouguec, 2020/06/10
- bug#41747: 27.0.91; Add default fontset setup for "Symbols and Pictographs Extended-A", Richard Stallman, 2020/06/10