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

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

@@ -0,0 +1,23 @@
+" Vim compiler file
+" Compiler:	SGI IRIX 6.5 MIPSPro C++ (CC)
+" Maintainer:	David Harrison <david_jr@users.sourceforge.net>
+" Last Change:	2012 Apr 30
+"		2024 Apr 03 by The Vim Project (removed :CompilerSet definition)
+
+if exists("current_compiler")
+  finish
+endif
+let current_compiler = "mipspro_cpp"
+let s:keepcpo= &cpo
+set cpo&vim
+
+CompilerSet errorformat=%Ecc\-%n\ %.%#:\ ERROR\ File\ =\ %f\%\\,\ Line\ =\ %l,
+		    \%Wcc\-%n\ %.%#:\ WARNING\ File\ =\ %f\%\\,\ Line\ =\ %l,
+		    \%Icc\-%n\ %.%#:\ REMARK\ File\ =\ %f\%\\,\ Line\ =\ %l,
+		    \%+C\ \ %m.,
+		    \%-Z\ \ %p^,
+		    \%-G\\s%#,
+		    \%-G%.%#
+
+let &cpo = s:keepcpo
+unlet s:keepcpo