#zig build-obj {
--name test -fno-emit-bin
-Mroot=test.zig
#}

#write test.zig {
const S = struct { self: *S, x: u32 };
const s: S = .{ .self = &s, .x = 123 };

comptime {
    _ = s;
}
#}
#update
#check errors {
test.zig:2:18: error: expected type '*test.S', found '*const test.S'
test.zig:2:18: note: cast discards const qualifier
#}
