alpine 2.11

Merges Alpine-chappa into Alpine, following Debian & Ubuntu’s lead and adds my patch for the Yosemite build failure.

Closes #33634.
Ah, yeah. I stared at that for a few minutes with a profoundly confused look on my face. I'm not really sure what's going on with that to be honest. I'm not sure whether someone in the past reported it upstream, or whether that comment just ended up on the wrong line or such :confused:.