[libc-commits] [libc] [libc] Add `dlfcn.h` placeholder (PR #97501)

[Schrodinger ZHU Yifan via libc-commits]

https://github.com/SchrodingerZhu commented:

LGTM. But I would like to put some TODOs inside the comment. Also, please add a comment about the `dlerror` return in the `Undefined Behavior` document section

https://github.com/llvm/llvm-project/pull/97501