On 2011-03-01, at 15:04, Adam Barth wrote:

> On Tue, Mar 1, 2011 at 2:46 PM, Mark Rowe <[email protected]> wrote:
>> On 2011-03-01, at 14:29, Adam Barth wrote:
>>> On Tue, Mar 1, 2011 at 2:18 PM, Mark Rowe <[email protected]> wrote:
>>>> On 2011-03-01, at 14:06, Adam Barth wrote:
>>>>> On Tue, Mar 1, 2011 at 1:57 PM, Maciej Stachowiak <[email protected]> wrote:
>>>>>> On Mar 1, 2011, at 11:07 AM, Adam Barth wrote:
>>>>>>> On Tue, Mar 1, 2011 at 9:33 AM, Maciej Stachowiak <[email protected]> 
>>>>>>> wrote:
>>>>>>>> Another consequence of step 3 is it would break submissions to Apple's 
>>>>>>>> central build system, since those pull from the repository with 
>>>>>>>> vanilla SVN and do not run special scripts afterwards.
>>>>>>> 
>>>>>>> I don't fully understand the constraints of Apple's central build
>>>>>>> system.  It might be worthwhile talking over the constraints with
>>>>>>> someone who's an expert.
>>>>>>> 
>>>>>>> If the requirements are that the entry point to the build system is an
>>>>>>> xcodeproj, we can create an xcodeproj with an action that creates the
>>>>>>> other xcodeproj files and then defers to the generated projects as
>>>>>>> dependencies.  I haven't tested this approach, but I suspect we'll
>>>>>>> find something that satisfies the Apple-internal constraints.
>>>>>> 
>>>>>> It needs to be either an xcodeproj or a Makefile. Also, all tools 
>>>>>> required for building have to be either be part of the OS, or part of 
>>>>>> what is submitted for the given project. So if gyp scripts need to 
>>>>>> execute at build time, they'd either have to be checked in to the WebKit 
>>>>>> repository, or get added to Mac OS X.
>>>>> 
>>>>> We can certainly use a Makefile to kick off the build.  The GYP system
>>>>> itself is just a handful of BSD-licensed Python scripts, so I wouldn't
>>>>> expect any trouble with checking them into svn.webkit.org.
>>>> 
>>>> I don't think driving the build via a Makefile is a desirable option.  XBS 
>>>> (what Maciej has been referring to as Apple's central build system) knows 
>>>> how to override Xcode configuration settings for projects that build using 
>>>> Xcode. This ability is useful and sometimes necessary.  It's also not 
>>>> possible to use if a project builds using Make as Makefiles vary so much 
>>>> from project to project.
>>> 
>>> This issue relates only to the "how and when to generate the projects"
>>> phase.  It seems we have at least two feasible solutions (using
>>> Makefiles and checking in generated projects), so it's mostly a matter
>>> of thinking of more clever solutions and making desirability
>>> trade-offs.
>> 
>> Given that you've listed the Makefile as a feasible solution after what I've 
>> said above I can only assume that I misunderstand how you intend for it to 
>> be used.  Can you expand on how you see that working?
> 
> Oh, you wrote that it might not be desirable, not that it was
> infeasible.  I'd classify the status quo as undesirable as well.  At
> some point, we should have a higher bandwidth discussion about how to
> make this work.

It was something of an understatement when I said it was not a desirable 
option.  It's clearly not ok to make it impossible to use sometimes necessary 
features of the build system.  I'll try and be clearer in the future.

- Mark

_______________________________________________
webkit-dev mailing list
[email protected]
http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev

Reply via email to