On Feb 16, 2007, at 6:19 PM, Jean-Charles VERDIE wrote:
Rob Burns a écrit :
Some topics that I think the Wiki could use:
- Porting WebKit
• Windows Port]
• LInux Port
• BSD Port
• etc.
These bullets are too limitative (just as platform is, to my point
of view). Porting to linux is meaningless. We work on porting
webkit on :
SH4 Linux + DirectFB + FreeType + blablabla
ARM9 Linux + SDL + SDL_TTF + blablabla
This is fairly different. This is impossible to imagine adding one
directory per port (what about ARM9 + DirectFB then?). Unless you
want to maximize the quantity of duplicated source ;-)
If we end up with a huge number of different port configurations,
then obviously we will need better support for fine-grained
configurability. I look forward to seeing Pleyo's approach to this
and I hope we can fold some of these ideas into the main tree.
Here's a few off-the-cuff thoughts on port configuratibility that may
or may not be relevant:
* WebKit's biggest dependencies are not on the core operating system.
ARM9 vs SH4 and Linux vs. BSD affect a relatively small number of
places in the code.
* The biggest dependency is UI toolkit (including graphics library,
text library, etc). Secondary would be image decoders (have to match
up with the graphics library) and networking (which is relatively
self-contained).
For these reasons, ports usually identify themselves mainly by the UI
toolkit rather than by the host operating system. This is why you see
a Qt port and a Gdk port rather than a Linux port and a BSD port.
* If we are going to end up with a large number of different
configurations, we will probably need to do more work to make the
external dependencies modular. I look forward to seeing the approach
to this that Pleyo has taken.
* Having a large number of configurations is a challenge, because
it's hard to keep them all building and working. We will need to
think carefully about how to approach this.
Regards,
Maciej
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