Building 0.20.2: /Users/haven hard-coded path in Makefile

[Johnny Utahh]

It appears 0.20.2 has a hard-coded path in a ruby Makefile? Granted, 
this is built on Mac OS X.  See the end of this gist: 
https://gist.github.com/johnnyutahh/d6f6844ff36a05b01ac7

I see some build problems here, but at first glance they seem different: 
http://notmuchmail.org/pipermail/notmuch/2015/020720.html

Are builds for tagged versions in the master branch supposed to 
generally be "solid", including for OS X? Or should I not expect such 
things.

~Johnny