- do not enable DIV_SMALL by default, on all archs - for now, don't use 128-bit arithmetics on amd64, as a work-around for the gcc bug. gcc3.3 mangles arguments for __divti3, and amd64 hangs on non-DIV_SMALL, when passing correct arguments. this is what silc-toolkit and silc-server use, too unbreaks amd64