How to have distcheck _not_ run check?

[Akim Demaille]

Is there a means to have distcheck not run check?  I am more and more
convinced that it is an error to run check on an non installed tree
(but when developing of course, but distcheck is about something else:
testing in `real' situation), so the project I have my hands on now
have installcheck which runs the test suite on the =inst-installed
tree.

It works fine, but then it takes twice the needed time to run: I just
don't care about that make check.

So, is there is any smart way to avoid this, other that using a
modified distcheck?