If you like me happen to use Enhanced CTorrent and you want to run it on your macmini at home that is still running Mac OS X Tiger but you need to compile it on your laptop that is running Leopard you might run into the same problem I did. The executable you get will work on Leopard but on Tiger it will just give “Bus error”.
The solution for this is to do:
export MACOSX_DEPLOYMENT_TARGET=10.4
before you run ./configure