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

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

@@ -0,0 +1,15 @@
+" Vim Compiler File
+" Compiler:	Jikes
+" Maintainer:	Dan Sharp <dwsharp at hotmail dot com>
+" Last Change:	2019 Jul 23
+"		2024 Apr 03 by The Vim Project (removed :CompilerSet definition)
+" URL:		http://dwsharp.users.sourceforge.net/vim/compiler
+
+if exists("current_compiler")
+  finish
+endif
+let current_compiler = "jikes"
+
+" Jikes defaults to printing output on stderr
+CompilerSet makeprg=jikes\ -Xstdout\ +E\ \"%:S\"
+CompilerSet errorformat=%f:%l:%v:%*\\d:%*\\d:%*\\s%m