broadwaylamb added a comment.

In D66834#1652756 <https://reviews.llvm.org/D66834#1652756>, @compnerd wrote:

> I think that this is pretty easy to forget.  Fortunately, last argument wins. 
>  Why not sink this into the `%clang` substitution in lit?  That ensures that 
> we run with an empty sysroot and then when the test needs to adjust the 
> sysroot, it can do so explicitly.


This totally makes sense.

I've just tried to do it, but unfortunately some tests are failing, for 
example, `Driver/cc1-response-files.c`. The problem is that `%clang` is 
expanded to `/path/to/clang --sysroot=`, but the succeeding flags (such as 
`-cc1`) may be incompatible with `--sysroot`.

Or am I missing something?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D66834/new/

https://reviews.llvm.org/D66834



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