2.4.9: GCC 3.0 problem in "acct.c"

i just updated my gcc from 2.96 to 3.0.1 and now i cant compile kernel 2.4.9 anymore, make bzImage fails with the following error message:

acct.c: In function `check_free_space':
acct.c:147: Unrecognizable insn:
(insn 335 102 336 (parallel[

            (set (reg/v:SI 2 ecx [44])
                (const_int 0 [0x0]))
            (clobber (reg:CC 17 flags))
        ] ) -1 (insn_list:REG_DEP_ANTI 100 (insn_list:REG_DEP_ANTI 102

(nil)))
(expr_list:REG_UNUSED (reg:CC 17 flags)
(nil)))
acct.c:147: Internal compiler error in insn_default_length, at insn-attrtab.c:223

can anyone tell me how to fix this?

thx