patch 8.0.1683: Python upgrade breaks Vim when defining PYTHON_HOME commit https://github.com/vim/vim/commit/0424958bde3d3e74c721ba39ab4d5a4744897393 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Apr 10 13:29:34 2018 +0200 patch 8.0.1683: Python upgrade breaks Vim when defining PYTHON_HOME Problem: Python upgrade breaks Vim when defining PYTHON_HOME. Solution: Do not define PYTHON_HOME and PYTHON3_HOME in configure. (Naoki Inada, closes #2787)

" Vim compiler file
" Compiler:	Unit testing tool for Python
" Maintainer:	Max Ischenko <mfi@ukr.net>
" Last Change: 2004 Mar 27

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

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

CompilerSet efm=%C\ %.%#,%A\ \ File\ \"%f\"\\,\ line\ %l%.%#,%Z%[%^\ ]%\\@=%m