[PATCH] Header dependencies support for modularize

[Kim Gräsman]

Hey Manuel,

On Thu, Aug 22, 2013 at 11:38 AM, Manuel Klimek <klimek at google.com> wrote:
>>
>> Ah, and then build two different binaries out of it? One stand-alone
>> tool and one Clang plugin dylib? Or can they be combined into the same
>> binary? That would be my preference, of course, but I can't quite see
>> the big picture for all the details at this point.
>
> Yes, you'd have one binary and one dylib (which you'd give to clang as
> plugin during the normal build).
> The cool thing about that solution is that you can run it next to the build
> on every build - you don't need a special tool run.

Interesting input, I'll give it a try.

Though I think IWYU was purposefully designed to NOT run together with
a normal build because

1) you couldn't re-run it without an intervening ``make clean``
2) it would be take at least as long as building the software and if
you're not IWYU-clean, that's not something you want to do
unnecessarily :-)

I wasn't around when the current strategy was set, but I think it was
directed by these two goals and the absence of the Tooling library at
the time.

Sincere thanks for the good information, though, I have more to work from!

- Kim