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

#write test.zig {
const Foo = struct {
    a: undefined,
};
export fn entry1() void {
    const foo: Foo = undefined;
    _ = foo;
}
#}
#update
#check errors {
test.zig:2:8: error: use of undefined value here causes illegal behavior
#}
