I too gave it a shot to get it running on OS X but there’s something that causes a segdump when trying to actually upload a firmware. Haven’t had time to debug the issue yet but here are my instructions:
Install MacPorts
Install the Java Developer Package for your OS version.
sudo port install libusb libusb-compat git-core
(mkdir somedir)
cd somedir
git clone git://gitorious.org/~tormod/unofficial-clones/dfuse-dfu-util.git
cd dfuse-dfu-util
git checkout dfuse
./autogen.sh
./configure --libdir=/opt/local/lib --includedir=/opt/local/include
#
# Look for the line "echo -e '#ifndef DFU_UTIL_VERSION' \" in src/Makefile and remove the -e argument
#
make
(sudo make install)