Spending a few hours on this, this popped up as the bad rev. This
explains why it is OS X only. Unsure what the exact problem is still
but that should be easy from here.
$ git bisect bad
d29658759a1343995f0d8b163d7fe445dd904b81 is the first bad commit
commit d29658759a1343995f0d8b163d7fe445dd904b81
Author: Jan Dj__rv <address@hidden>
Date: Sun Nov 9 14:47:02 2014 +0100
* nsterm.h (EmacsScroller): judge returns bool.
* nsterm.m (ns_set_vertical_scroll_bar): Release bar.
(ns_judge_scroll_bars): Only set removed if judge returns true.
(judge): Returns bool == condemned. Remove self from window.
(setPosition:portion:whole:): Remove raise SIGIO.
Fixes: debbugs:18757
:040000 040000 fdc45d21babe0914c2de8dbea838a97689cdbada
5914794e0b431ca729338a27df419244d5903c8e M src