[Development] QtWebEngine unbundled of third-party libraries on Linux

[Robert Knight]

> QtWebEngine and Chromium in the Qt 5.6 branch have been patched to
> allow linking with system libraries on Linux instead of bundled libraries.

What upstream changes have the Chromium team made to the bundled libraries
compared to the system ones and are Chromium upstream supportive of taking
patches to facilitate using system libraries?

I'm concerned that unbundling the libraries will break things - either via
bugs, features that stop working or security fixes that are missing from
system libs.

On 11 August 2015 at 22:17, Allan Sandfeld Jensen <kde at carewolf.com> wrote:

> Hello Qt
>
> QtWebEngine and Chromium in the Qt 5.6 branch have been patched to allow
> linking with system libraries on Linux instead of bundled libraries. For
> most
> libraries the system library will be used if development files are
> detected on
> the system. ICU and FFMPEG however defaults to using the bundled copies and
> requires using qmake arguments to configure to use system versions. The
> required arguments are listed in qmake configure status (just delete
> .qmake.cache and run qmake to run the configure step again). Note that for
> FFMPEG, the libav libraries from the FFMPEG project are required, the
> libraries from the libav project does not work.
>
> I have so far only tested on Debian. If more people could test it we could
> also get better detection and set proper minimal versions.
>
> If you are a packager and more is required before QtWebEngine can be
> packaged
> on your distribution, please let me know.
>
> Best regards
> `Allan Jensen
>
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