FreeBSD, NetBSD, and OpenBSD https://man.freebsd.org/cgi/man.cgi?query=pthread_getthreadid_np https://man.netbsd.org/_lwp_self.2 https://man.openbsd.org/getthrid.2 This fixes a build break caused by https://github.com/abseil/abseil-cpp/commit/88cc63ef739d83277b492e881be72e9069fcb1fe Fixes #1518 PiperOrigin-RevId: 563200172 Change-Id: Ifd1b65c84e3631075248bc2e01b8f047dc72d201
