carrying over missing patch from r27310 to x64sc - soci, please remember not to update x64 only :)

git-svn-id: http://svn.code.sf.net/p/vice-emu/code/trunk/vice@27845 379a1393-f5fb-40a0-bcee-ef074d9b53f7
improved MAC Machine hack a bit and carried over to x64sc

git-svn-id: http://svn.code.sf.net/p/vice-emu/code/trunk/vice@27846 379a1393-f5fb-40a0-bcee-ef074d9b53f7
Fix for interix5+.

git-svn-id: http://svn.code.sf.net/p/vice-emu/code/trunk/vice@27847 379a1393-f5fb-40a0-bcee-ef074d9b53f7
Merge remote-tracking branch 'git-svn'