gmake: install: Command not found

install is a little utility to copy files and set attributes. It doesn't come with all flavors of Unix, so you might want to install the GNU version (from the coreutils package) into some place where it's found along $PATH.  If all else fails, you should also be able to fake its functionality with a combination of cp, chmod and chown put into a little script. Or even simply copy the files manually...