add new library into the uartus-II

Hello

can any one help to my problem

I have code for p89c51 , it have two libraries one is IEEE and other is FMF. This code uses two files from FMF library 1.gen_utils 2.conversions. I have downloaded code for these FMF library functions and put into vhdl folder next to IEEE library.

In my project I have given path to this FSM folder.

while I run project, Still i am getting following two messages

Error (10481): VHDL Use Clause error at p89c51.vhd(35): design library "FMF" does not contain primary unit "gen_utils"

Error (10481): VHDL Use Clause error at p89c51.vhd(36): design library "FMF" does not contain primary unit "conversions"

how to resolve this issure..

regards

kalyan