test

/usr/local/Cellar/zig/0.4.0+82ab006e/lib/zig/std/debug.zig:1045:23: error: container 'std.c' has no member called '_mh_execute_header'
    const hdr = &std.c._mh_execute_header;
                      ^
/usr/local/Cellar/zig/0.4.0+82ab006e/lib/zig/std/c.zig:48:102: error: use of undeclared identifier 'fd_t'
pub extern "c" fn mmap(addr: ?*align(page_size) c_void, len: usize, prot: c_uint, flags: c_uint, fd: fd_t, offset: isize) *c_void;
                                                                                                     ^
/usr/local/Cellar/zig/0.4.0+82ab006e/lib/zig/std/c.zig:18:30: error: use of undeclared identifier '_errno'
        return @intCast(u16, _errno().*);
                             ^
/usr/local/Cellar/zig/0.4.0+82ab006e/lib/zig/std/os.zig:1990:18: note: called from here
    switch (errno(system.munmap(memory.ptr, memory.len))) {