http://bugs.winehq.org/show_bug.cgi?id=35310
--- Comment #3 from Ryan Schmidt wine-2013@ryandesign.com --- Looks like it was 6 years ago that we started setting INSTALL, to avoid problems in cases where coreutils was installed:
https://trac.macports.org/changeset/30216
Also, /usr/bin/install does of course create directories, if you supply the -d flag.