pthread_attr_t

pub const pthread_attr_t = switch (native_os) {
    .linux, .emscripten, .dragonfly => extern struct {
        __size: [56]u8,
        __align: c_long,
    },
    .driverkit, .ios, .maccatalyst, .macos, .tvos, .visionos, .watchos => extern struct {
        __sig: c_long,
        __opaque: [56]u8,
    },
    // https://github.com/SerenityOS/serenity/blob/b98f537f117b341788023ab82e0c11ca9ae29a57/Kernel/API/POSIX/sys/types.h#L75
    .freebsd, .openbsd, .serenity => extern struct {
        inner: ?*anyopaque = null,
    },
    .illumos => extern struct {
        mutexattr: ?*anyopaque = null,
    },
    .netbsd => extern struct {
        magic: u32,
        flags: i32,
        private: ?*anyopaque,
    },
    .haiku => extern struct {
        detach_state: i32,
        sched_priority: i32,
        stack_size: i32,
        guard_size: i32,
        stack_address: ?*anyopaque,
    },
    else => void,
}