pub const pthread_spinlock_t = switch (native_os)
pub const pthread_spinlock_t = switch (native_os) { .openbsd => openbsd.pthread_spinlock_t, .freebsd => extern struct { inner: ?*anyopaque = null, }, .netbsd => extern struct { pts_magic: c_uint, spin: pthread_spin_t, pts_flags: c_int, }, .windows => isize, else => c_int, }