[libc-commits] [libc] Reland "[libc] build fix for sigsetjmp (#137047)" (PR #137214)

[Schrodinger ZHU Yifan via libc-commits]

SchrodingerZhu wrote:

@gulfemsavrun could you check if this fix address the build issue?

https://github.com/llvm/llvm-project/pull/137214