It worked, but not straight of the shelf. I had to get libusb and libusb-legacy from macport.<br> Change in ifp_routines.h and ifp.c the location of the <usb.h> file. It is (for me) in /opt/local/include/libusb-legacy/usb.h Then configure with > ./configure --without-libiconv-prefix --with-libusb-prefix=/opt/local/lib/libusb-legacy/ > make Make was not successful; it does not add the libusb.dylib. Run the loader again with > gcc -g -O2 -o ifp ifp-ifp.o ifp-ifp_routines.o ./libunicodehack.a -liconv /opt/local/lib/libusb-legacy/libusb.dylib The resulting executeble works. Thanks.