FYI, unfortunately I was never able to have word search work properly.
For instance, when I try word search in the *info* node "Word search"
and I type "C-s C-w" then I type "the words" (all of these things
without double quotes) and then I type " ", I would expect to find
the first occurrence at the end of first line of info node text which is :
---- excerpt from info node Word Search --------------
Word search searches for a sequence of words without regard to how the
words are separated. More precisely, you type a string of many words,
---- end of excerpt -------------------------------------
Instead of that, I get the following error message :
"[(wrong-type-argument integer-or-marker-p t)]" which is displayed in
the Minibuffer and has no trace in the *Message* buffer. Is that normal