Source : Free On-Line Dictionary of Computing

link farm
     
         A directory tree that contains mostly
        {symbolic links} to files in a master directory tree of files.
        Link farms save space when one is maintaining several nearly
        identical copies of the same source tree - for example, when
        the only difference is architecture-dependent object files.
        They also mean that changes to the master tree are instantly
        visible in the link farm.  Good {text editors} provide the
        option to replace a link with a new version of the target file
        when saving thus allowing the farm to have its own versions of
        just those files that differ from the master tree.
     
        E.g. "Let's freeze the source and then rebuild the FROBOZZ-3
        and FROBOZZ-4 link farms."
     
        Link farms may also be used to get around restrictions on the
        number of "-I" (include-file directory) arguments on older C
        preprocessors.  However, they can also get completely out of
        hand, becoming the file system equivalent of {spaghetti code}.
     
        [{Jargon File}]
     
        (2001-02-08)