make dist incompatible with long uids

[Jerome Haltom]

tar: value 1786588783 out of uid_t range 0..2097151

`make dist` using automake is causing this. Basically it's trying to use
an old tar format. ustar or posix or whatever. Tar breaks when you have
a long uid with this.

Now, fixing tar would be an option, to use posix tars, and ignore long
uids, and just not store them, quietly. But I think a better option
would be for `make dist` to have the ability to just use gnu tars. I'd
rather use them. I have no issue with compatibility.

So what would it take to do this?

-- 
Jerome Haltom <address@hidden>
Institution Solutions LLC