The attached patch should solve the problem by adding appropriate
dependencies to the libinstall target.

I have tested:

./configure; make install

but not yet:

./configure; make all install
./configure; make all; make install

Note: I introduced a new "build_all" phony target so that both all and
libinstall could depend on this, rather than making libinstall either:

* depend on all (which I guess would cause nasty looping dependencies if
one were to run "make all install")

* duplicate all the dependencies of all, thus causing a maintenance issue

Possibly, the new dependencies should be added to install instead of
libinstall?

Alternatively, I guess one could make "all" touch a file, and "install"
or "libinstall" validate that the file exists, and error out if it doesn't.