http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46333
--- Comment #8 from Jay <jay.krell at cornell dot edu> 2010-11-07 00:30:29 UTC --- an example of the gcc_unreachable problem that I don't think I caused: "../../gcc-4.5/gcc/targhooks.c", line 85: Error: "default_legitimate_address_p(machine_mode, rtx_def*, bool)" is expected to return a value. "../../gcc-4.5/gcc/targhooks.c", line 938: Error: "default_addr_space_convert(rtx_def*, tree_node*, tree_node*)" is expected to return a value. I suggest putting in "return 0;" at end.