When loading a session file from another machine I get errors of the form
E518: Unknown option: balloonexpr=
Which is one of the more obscure features of Vim that I
don’t seem to have compiled in. However, grepping the
output of Vim’s
configure script doesn’t show any
directly related compile flag.
What does one have to do to enable the
option? This is on Vim version patch 8.0.0134.