made the pack completely portable and wrote relevent bat files to go with it

gitportable/usr/share/vim/vim91/compiler/checkstyle.vim

@@ -0,0 +1,25 @@
+" Vim compiler file
+" Compiler:	Checkstyle
+" Maintainer:	Doug Kearns <dougkearns@gmail.com>
+" Last Change:	2024 Apr 03
+
+if exists("current_compiler")
+  finish
+endif
+let current_compiler = "checkstyle"
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+" CompilerSet makeprg=java\ com.puppycrawl.tools.checkstyle.Main\ -f\ plain\ -c\ /sun_checks.xml
+" CompilerSet makeprg=java\ -jar\ checkstyle-X.XX-all.jar\ -f\ plain\ -c\ /sun_checks.xml
+
+CompilerSet makeprg=checkstyle\ -f\ plain
+CompilerSet errorformat=[%tRROR]\ %f:%l:%v:\ %m,
+		       \[%tARN]\ %f:%l:%v:\ %m,
+		       \[%tRROR]\ %f:%l:\ %m,
+		       \[%tARN]\ %f:%l:\ %m,
+		       \%-G%.%#
+
+let &cpo = s:cpo_save
+unlet s:cpo_save