r321855 - Reapply r321781: [Modules] Allow modules specified by -fmodule-map-file to shadow implicitly found ones

[Bruno Cardoso Lopes via cfe-commits]

Hi Eric,

On Mon, Jan 8, 2018 at 9:31 PM, Eric Fiselier <eric at efcs.ca> wrote:
> I haven't done a ton of investigation yet, but I suspect this commit is
> responsible for breaking my LLVM module selfhost build, which uses libc++ as
> the STL, and builds LLD (No bots appear to test this configuration).
>
> The error message can be found here:
> https://gist.github.com/EricWF/fb5e1d18eb1069d23788469b5fb15442
>
> I'll investigate further tomorrow, but I wanted to send this your way in
> case it looks familiar.

Haven't seen this one before, maybe because of this particular
configuration. I'm happy to help out fixing it, I can try a similar
setup and see what I get. It would be nice if you can confirm this is
the culprit commit though.


-- 
Bruno Cardoso Lopes
http://www.brunocardoso.cc