Hi,

Using nullable struct property leads to GCC error.

Case :

public struct TestStruct {
	public string label;
}

class TestClass : Object {
	public weak TestStruct? strukt {get; set;}
}

public int main(string[] args) {
	var test = new TestClass();
	var strukt = TestStruct();
	test.strukt = strukt;
	return 0;
}

Error :
test.vala.c:187: error: lvalue required as unary ‘&’ operand
error: cc exited with status 256

Thanks,
Étienne