[libc-commits] [libc] [llvm] [libc][cmake] Add LIBC_TEST_SUBPROCESS_TESTS (PR #211238)

[Pavel Labath via libc-commits]

labath wrote:

(Converting to draft, as I need to sort out some issues. Nonetheless, I would appreciate some feedback on the general direction.)

https://github.com/llvm/llvm-project/pull/211238