[clang] [llvm] [flang-rt] Pass the whole path of libflang_rt.runtime.a to linker on AIX (PR #131041)

[Michael Kruse via llvm-commits]

https://github.com/Meinersbur commented:

Approach look OK to me.

Could you add test(s) along the lines of [aix-rlib.c](https://github.com/llvm/llvm-project/blob/main/clang/test/Driver/aix-rtlib.c). If we make further changes, knowing what is expected on AIX/PPCLunux would be very helpful.

A review from someone involved with the Clang driver side would be helpful. @MaskRay  ?

https://github.com/llvm/llvm-project/pull/131041