patch 8.0.0253: error when loading session if winminheight is 2 commit https://github.com/vim/vim/commit/36ae89c550a4f0a380606c3fb4a054957ad698f0 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jan 28 17:11:14 2017 +0100 patch 8.0.0253: error when loading session if winminheight is 2 Problem: When creating a session when winminheight is 2 or larger and loading that session gives an error. Solution: Also set winminheight before setting winheight to 1. (Rafael Bodill, neovim #5717)

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