[flang-commits] [flang] [flang] Fix `do concurrent` CLI test for PowerPC (PR #134249)

[Daniel Chen via flang-commits]

DanielCChen wrote:

I can also reproduce the failure if I don't have `flang-rt` specified in `LLVM_ENABLE_RUNTIMES`. 
So I think the proper fix is to do bootstrap build for `flang-rt` and pull the change of PR #134362 .

https://github.com/llvm/llvm-project/pull/134249