Hi, i 've a problem trying to compile a simple C Extension, that actually do nothing, only print an hello message. If from XCode i create and build a new Ruby C Extension, then i try to recall it from a ruby script, that use the ruby interpreter compiled from MacPort , a BUS ERROR is returned, au contraire, if i use the Leopard's ruby interpreter, it works. Already tried to change the XCode project target properties to 32 and 64bit but no way to work with that ,and i do non understand why, 2 ruby interpreters can't use the same c extension. Thanks -- Posted via http://www.ruby-forum.com/.