patch 8.2.3759: quickfix buffer becomes hidden while still in a window Commit: https://github.com/vim/vim/commit/78a61068cf2c83e611d954a0fb413a09ad59dc07 Author: Yegappan Lakshmanan <yegappan@yahoo.com> Date: Wed Dec 8 20:03:31 2021 +0000 patch 8.2.3759: quickfix buffer becomes hidden while still in a window Problem: Quickfix buffer becomes hidden while still in a window. Solution: Check if the closed window is the last window showing the quickfix buffer. (Yegappan Lakshmanan, closes #9303, closes #9300)

" Vim compiler file
" Compiler:	Microsoft Visual Studio C#
" Maintainer:	Chiel ten Brinke (ctje92@gmail.com)
" Last Change:	2013 May 13

if exists("current_compiler")
  finish
endif
let current_compiler = "msbuild"
let s:keepcpo= &cpo
set cpo&vim

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

CompilerSet errorformat=\ %#%f(%l\\\,%c):\ %m
CompilerSet makeprg=msbuild\ /nologo\ /v:q\ /property:GenerateFullPaths=true

let &cpo = s:keepcpo
unlet s:keepcpo