commit https://github.com/vim/vim/commit/baec5c1768098f9dd867b465aaabfdfb294f10c2 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Apr 6 23:06:23 2016 +0200 patch 7.4.1716 Problem: 'autochdir' doesn't work for the first file. (Rob Hoelz) Solution: Call DO_AUTOCHDIR after startup. (Christian Brabandt, closes https://github.com/vim/vim/issues/704)

TYPEMAP
VIWIN	T_VIOBJNOMUNGE
VIBUF	T_VIOBJNOMUNGE

INPUT
T_VIOBJNOMUNGE
	if (sv_isa($arg, \"${ntype}\")) {
	    IV tmp = SvIV((SV*)SvRV($arg));
	    $var = INT2PTR($type, tmp);
	    if (!tmp)
		croak(\"$ntype no longer exists\");
	}
	else
	    croak(\"$var is not of type ${ntype}\")