[libc-commits] [libc] [libc] [startup] add cmake function to merge separated crt1 objects (PR #75413)

[Nick Desaulniers via libc-commits]

nickdesaulniers wrote:

ah, @SchrodingerZhu it looks like this broke the post submit bots:

- asan full build: https://lab.llvm.org/buildbot/#/builders/162
- aarch64: https://lab.llvm.org/buildbot/#/builders/223

https://github.com/llvm/llvm-project/pull/75413