fangism added a comment.

In D144603#4163751 <https://reviews.llvm.org/D144603#4163751>, @phosek wrote:

> In D144603#4162974 <https://reviews.llvm.org/D144603#4162974>, @haowei wrote:
>
>> I think remove the compiler launcher from default pass through flags are 
>> fine. What about the using compiler launcher in runtime builds? I don't 
>> think we should read `CLANG_BOOTSTRAP_PASSTHROUGH` to determine if we should 
>> pass through compiler launcher flags.
>
> I'd suggest a similar approach, that is remove `C_COMPILER_LAUNCHER` and 
> `CXX_COMPILER_LAUNCHER` from the default passthrough list and provide a new 
> `LLVM_EXTERNAL_PROJECT_PASSTHROUGH` variable.

Will the PASSTHROUGH approach let us choose a //different// LAUNCHER for the 
external projects?  For example, we could still distribute those compiles, 
albeit without expecting any caching.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D144603/new/

https://reviews.llvm.org/D144603

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