compilation error in fied-point package

As it turned out the best workaround is to comment out "assert NO_WARNING report fixed_pkg'instance_name..." in fixed_pkg_c.vhdl :-))

But seriously, I've been under the impression that people use successfully this fixed-point package with Quartus. So frankly, I didn't expect these kind of mistakes which look like incompatibility of pakage and Quartus.

P.S. Moreover, I downloaded the package version which is dedicated specifically for Altera at http://www.eda.org/fphdl/.