Just to confirm my earlier confusion about verified snapshots at Compiling MySQL Tutorial 1 – The Baseline .
Seems the fine print at MySQL Database Server 5.1: Beta snapshots also states this. Well, need to take my RTFM pill there.
Thanks to Lenz for putting the record straight, and helping with my Forum Post . Seems I did uncover a Bug, now recorded as Bug #21463 . Just need to get it fixed to continue on my tutorial.