[libc-commits] [libc] [libc] Implement fcntl() function (PR #89507)

[Michael Jones via libc-commits]

https://github.com/michaelrj-google commented:

This patch is a good start, but it needs some more work to be complete.

For this to work in fullbuild mode you need to add the function to [spec/posix.td](https://github.com/llvm/llvm-project/blob/main/libc/spec/posix.td#L228). The rest of the changes should be covered by the comments, but feel free to reach out if you need help with any of this.

https://github.com/llvm/llvm-project/pull/89507