[PATCH] D11963: Create a __config_site file to capture configuration decisions.

[Eric Fiselier via cfe-commits]

EricWF added a comment.

In http://reviews.llvm.org/D11963#227933, @jroelofs wrote:

> In http://reviews.llvm.org/D11963#227444, @EricWF wrote:
>
> > I also just realized that this change will currently likely play havoc with how libc++ and libc++abi build together. In order to build libc++ and libc++abi together we would need to
> >
> > 1. Configure libc++ pointing to the libc++abi headers in order to generate the __config_site file.
> > 2. Configure libc++abi pointing it to the libc++ build directory for the headers.
> > 3. build libc++abi
> > 4. build libc++
> >
> >   I'm not quite sure how this would work for an in-tree build.
>
>
> This patch, combined with http://reviews.llvm.org/D11964, works the way you describe.


Wouldn't it still be a mess if you build both libc++ and libc++abi out-of-tree? The user would have to be aware of these weird requirements.


http://reviews.llvm.org/D11963