Quartus II can't find package during synthesis

for whatever reason Quartus doesn't like use stratixiv.stratixiv_components.all; but use stratixiv.all; seems to work. i chose to turn it off for synthesis, simulation will still pick up the library

library ieee;
use ieee.std_logic_1164.all;
-- synthesis translate_off 
library stratixiv;
use stratixiv.stratixiv_components.all;
-- synthesis translate_on
entity test_io is
	port 
	(
		a	   : in std_logic;
		b          : out std_logic
	);
end entity;
architecture rtl of test_io is
	 COMPONENT  stratixiv_io_ibuf
	 GENERIC 
	 (
		bus_hold	:	STRING := "false";
		differential_mode	:	STRING := "false";
		simulate_z_as	:	STRING := "Z";
		lpm_type	:	STRING := "stratixiv_io_ibuf"
	 );
	 PORT
	 ( 
		dynamicterminationcontrol	:	IN STD_LOGIC := '0';
		i	:	IN STD_LOGIC := '0';
		ibar	:	IN STD_LOGIC := '0';
		o	:	OUT STD_LOGIC
	 ); 
	 END COMPONENT;
begin
    a_in : stratixiv_io_ibuf
    generic map
    (
        differential_mode   => "false",
        bus_hold            => "false",
		  simulate_z_as       => "Z",
        lpm_type            => "stratixiv_io_ibuf"
    )
    port map
    (
        dynamicterminationcontrol => '0',
        i                   => a,
		  ibar                => open,
        o                   => b
    );
end rtl;