patch 8.1.0124: has('vcon') returns true even for non-win32 terminal commit https://github.com/vim/vim/commit/d8b37a53bd29cab78c6997aa75207385213f23e2 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Jun 28 15:50:28 2018 +0200 patch 8.1.0124: has('vcon') returns true even for non-win32 terminal Problem: has('vcon') returns true even for non-win32 terminal. Solution: Check the terminal type. (Nobuhiro Takasaki, closes https://github.com/vim/vim/issues/3106)

" Vim compiler file
" Compiler:     ATT dot
" Maintainer:	Marcos Macedo <bar4ka@bol.com.br>
" Last Change:	2004 May 16

if exists("current_compiler")
  finish
endif
let current_compiler = "dot"

if exists(":CompilerSet") != 2		" older Vim always used :setlocal
  command -nargs=* CompilerSet setlocal <args>
endif

CompilerSet makeprg=dot\ -T$*\ \"%:p\"\ -o\ \"%:p:r.$*\"