compile intel libraries for modelsim stand alone

I am trying to simulate a synthesized netlist in modelsim standalone. The file is synthesized from infered memory and uses M20K rams. The file ​in addition to the ieee libraries declares:

library twentynm;

use twentynm.twentynm_components.all;

library altera;

use altera.altera_primitives_components.all;

I created both libraries and compiled eda/sim_lib/twentynm_components.vhd and

eda/sim_lib/twentynm_atoms. vhd to twentynm.

and compiled

eda/sim_lib/altera_primitives.vhd and

eda/sim_lib/altera_primitives_components.vhd to altera.

upon further compiling I realized that som of those file required an additional library, altera_lnsim, which I created and comiled

eda/sim_lib/altera_lnsim_components.vhd to it.

All libraries compiled successfully without errors or warnings and I can see the compiled design units in their respective libraries. Further more I can compile my DUT file in the project without errors. BUT!!............

when I start the sim, while the design is loading I get warnings when the synthesized netlist tries to load complaing about :

Component instance "inst : generic_m20k" is not bound

Upon further inspection of one of the library files that I compiled,

eda/sim_lib/twentynm_atoms. vhd I that noticed that it contains a package at the top of the file and many entity/architect constructs too. And these constructs all have a use clause :

use work.twentynm_atom_pack.all;

In this is where the generic_m20k is instanced.

How can it be looking for twentynm_atom_pack in library work????

this is my issue. unless someone can point me to what I'm doing wrong.

Thanks