patch 8.1.0951: using WIN64 even though it is never defined commit https://github.com/vim/vim/commit/44b443c5db7a372b2da519be15dd962c552e1355 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Feb 18 22:14:18 2019 +0100 patch 8.1.0951: using WIN64 even though it is never defined Problem: Using WIN64 even though it is never defined. Solution: Only use _WIN64. (Ken Takata, closes https://github.com/vim/vim/issues/3997)

@echo off
rem To be used on MS-Windows for Msys2 with the 32 bit MinGW compiler.
rem Adjust the "c:\msys64" part to match your installation.
@echo on

set PATH=c:\msys64\mingw32\bin;c:\msys64\usr\bin;%PATH%