commit https://github.com/vim/vim/commit/437bafe4c8a83ed71ee006eda7f54b65a90f0d4c Author: Bram Moolenaar <Bram@vim.org> Date: Mon Aug 1 15:40:54 2016 +0200 patch 7.4.2137 Problem: Using function() with a name will find another function when it is redefined. Solution: Add funcref(). Refer to lambda using a partial. Fix several reference counting issues.

the first targets to make vim are: scratch config myself
srcdir = .
VIMNAME = vim
EXNAME = ex
VIEWNAME = view