You realize that you could just copy/paste the error here instead of making me go to an annoying site, right?
In any case, in the Makefile, try changing install to ginstall. If that doesn't work, then see if you can find the "install" program. It should be included in the fileutils package, if I'm not mistaken.
If nothing else works, just the program to the directory. That's all install really does.