How to add the fixed_pkg code into the ieee_proposed library?

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VHDL

We are writing a code using vhdl. Please tell us elaborately how to add the fixed_pkg code into the ieee_proposed library.

The fixed package is probably found here:https://sourceforge.net/p/ghdl-updates/ghdl-updates.git/ci/8c778be42999972dcda1aac95999e0eb1a5e3e9c/tree/libraries/ieee2008/fixed_pkg.vhdl#l48[^]. Is this the fixed_pkg code that we have to add?

We are trying to make the following code work

library IEEE;
use IEEE.STD_LOGIC_1164.ALL;

library ieee_proposed;
use ieee_proposed.fixed_pkg.all;


--use ieee.fixed_pkg.all;


entity fixed_point1 is
Port ( a,b : in STD_LOGIC;
c : in STD_LOGIC;
d : in STD_LOGIC_VECTOR (3 downto 0));
end fixed_point1;

architecture Behavioral of fixed_point1 is
signal example : ufixed (3 downto -4);
begin
example <= "10011100";

end Behavioral;


This code is synthesised properly.However during simulation it is giving some compilation error( 'fixed_pkg' is not compiled in library ieee_proposed [../../../fixed_point1.srcs/sources_1/new/fixed_point1.vhd:26]). Please tell us elaborately how to compile fixed_pkg in ieee_proposed so that the simulation works.

What I have tried:

We have tried to include libraries as mentioned in this discussion but we are still getting error.

https://forums.xilinx.com/t5/Simulation-and-Verification/IEEE-Proposed-Fixed-point-librarys-and-Vivado-2013-3-simulator/td-p/435908