Mention do not try to install "in place"

[積丹尼 Dan Jacobson]

On (info "(tramp) Installation parameters")

   For example, to put the Lisp files in ‘$HOME/elisp’ and the Info file
in ‘$HOME/info’, you would type:

     $ ./configure --with-lispdir=$HOME/elisp --infodir=$HOME/info

OK, but add: Just make sure the destination directories are different
from the build directories. Yes, it might seem simpler, however "make
install" will bomb out...