patch 8.1.0840: getchar(0) never returns a character in the terminal commit https://github.com/vim/vim/commit/12dfc9eef14fe74c46145aa9e6cba9666f1bcd40 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Jan 28 22:32:58 2019 +0100 patch 8.1.0840: getchar(0) never returns a character in the terminal Problem: getchar(0) never returns a character in the terminal. Solution: Call wait_func() at least once.

" gvimrc for test_gui_init.vim

if has('gui_athena') || has('gui_motif') || has('gui_gtk2') || has('gui_gtk3')
  set guiheadroom=0
  set guioptions+=p
endif