[webkit-dev] Introducing a minimum ICU version for WebKit

[Ryosuke Niwa]

On Fri, Apr 3, 2020 at 4:25 PM Kirsling, Ross <Ross.Kirsling at sony.com>
wrote:

> Hi everybody,
>
>
>
> Just sending out an email blast for visibility regarding
> https://bugs.webkit.org/show_bug.cgi?id=209694.
>
>
>
> This patch:
>
>    - Upgrades the Mac ICU headers under Source/WTF/icu from ICU 55 to ICU
>    62, matching Mojave
>    - Introduces a minimum ICU version of 60.2 throughout the codebase, as
>    required by GTK for Ubuntu 18.04 LTS
>
>
>
> As written in the ChangeLog, the immediate motivations are:
>
>    1. To properly establish a minimum ICU version for WebKit as a whole
>    (responding to a pain point identified in
>    https://bugs.webkit.org/show_bug.cgi?id=209579)
>    2. To support the development of ECMA-402 Intl API features, which JSC
>    is quite behind on
>    (and which often boil down to exposing ICU functionality to JavaScript)
>
>
>
> The only remaining concern of which I am aware is that AppleWin’s ICU
> headers, stored in WebKitAuxiliaryLibrary.zip, need to be upgraded from ICU
> 49 to 62 (to match the lib files stored in WebKitSupportLibrary.zip). We do
> have a potential workaround for this (i.e. having CMake copy the Mac
> headers to WebKitLibraries/win) but it is feared that this may break
> Apple-internal builds and we would certainly like to avoid a revert if
> possible. Any help on this front would be greatly appreciated.
>
>
FWIW, I've been told that Brent / Per might be able to help you there but
might need some more time due to other more urgent commitments.

- R. Niwa
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