[clang] [Driver] Restore compiler-rt arch suffix for PS and Windows (PR #89775)

[Paul T Robinson via cfe-commits]

pogo59 wrote:

> I think the distributed build system users need to prepare a file hierarchy to get the intended --dependent-lib= (like how to prepare --sysroot in clang/test/Driver tests), or turn off it with the recent -frtlib-defaultlib.

Is there a Release Note for this new requirement on distributed build systems? I don't know whether it would ordinarily be the users or the dbs providers who would implement it, but you've created that external requirement and it needs to be documented.

What is -frtlib-defaultlib? I don't see it in include/clang/Driver/Options.td.

I will talk to my dbs team and see if we can find a way to appease the Clang driver.

https://github.com/llvm/llvm-project/pull/89775