how can i configure flycheck in vhdl code to recognize signals in packages - emacs

Question

I 'm trying to use emacs flycheck for vhdl coding environment.
My problem is that flycheck cannot recognize packages and records in the packages and show warning such that "unit xx not found in library work"
I have also set (custom-set-variables '(flycheck-ghdl-workdir "/XXX/tWork/RTL/Mult/src/vhdl")) to show the directory of the source code to the flycheck
warning in emacs vhdl
How can i configure flycheck appropriately.
PS: below is new edit:
Let me clear this things first.
I have vhd file that includes a package as follows:
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use work.multPckg.all;
entity mutl is
port(
iClk : in std_logic;
iRst : in std_logic;
iData : in dataInRecord;
);
end entity mutl;
architecture RTL of mutl is
signal dataIni1 : dataInRecord := cDataInRecord;
signal dataIni2 : dataInRecord := cDataInRecord;
--signal x : std_logic;
begin
--x <= osman;
inRegPro : process (iClk) is
begin
if rising_edge(iClk) then
dataIni1 <= iData;
dataIni2 <= dataIni1;
end if;
end process inRegPro;
end architecture RTL;`
and the multPckg is in the same directory and coded by me
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
package multPckg is
constant dataInBitW : integer := 8;
constant dataOutBitW : integer := 8;
type dataInRecord is record
in1 : std_logic_vector(dataInBitW-1 downto 0);
in2 : std_logic_vector(dataInBitW-1 downto 0);
end record dataInRecord;
constant cDataInRecord : dataInRecord := ((others => '0'), (others => '0'));
end package multPckg;
package body multPckg is
end package body multPckg;
emacs warn me about the line use work.multPckg.all; because of it cannot find the library work. Is there any way for emacs flycheck to find the work.multPckg not to give that warnings.
I hope i'm clear about the issue.