error:nvalid option `short-load-bytes'

[Leo Zhang]

hi,everyone
	I have built a toolchain for at91rm9200 used buildroot.My gcc version is 3.4.6.Cross toolchain built succefully,but when i use it to compile u-boot-1.10,Display error like this:
cc1: error: invalid option `short-load-bytes'
I googling and know that my toolchain doesn't support "-mshort-load-bytes" option, but I don't know how to fix it.who can tell me what to do?
Thanks in advance
Leo Zhang