poll() and pollfd are defined in poll.h per POSIX¹, and musl complains² about it. [1]: https://man.archlinux.org/man/poll.h.0p [2]: https://github.com/kraj/musl/blob/8cb84492b0245d70b2cd0edd523e2b55c7ad67a9/include/sys/poll.h#L1 Change-Id: I4fff447394903cbf55e330f07ed82b906a6a6964