DATA_ALIGNMENT vs. DECL_USER_ALIGNMENT

[Richard Kenner]

    But this does not solve my problem that Ada does not
    bootstrap; for some reason the Ada frontend sets the
    USER_ALIGN flag for a huge number of variables, even
    those that were defined without any special 'Alignment
    attributes ...

That's because the front end will specify the alignment of some variables.
But what does that have to with failure to bootstrap?