patch 8.1.0049: shell cannot tell running in a terminal window commit https://github.com/vim/vim/commit/d7a137fb0d980545dd567bee9c24cf7b9c3a2eae Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jun 12 18:05:24 2018 +0200 patch 8.1.0049: shell cannot tell running in a terminal window Problem: Shell cannot tell running in a terminal window. Solution: Add the VIM_TERMINAL environment variable. (Christian Brabandt)

" vimrc for test_gui_init.vim

" Note that this flag must be added in the .vimrc file, before switching on
" syntax or filetype recognition (when the |gvimrc| file is sourced the system
" menu has already been loaded; the ":syntax on" and ":filetype on" commands
" load the menu too).
set guioptions+=M