Otherwise the (cross-)build fails like this:
checking libudev.h usability... no
checking libudev.h presence... no
checking for libudev.h... no
configure: error: "udev support requested but libudev not installed"
$GIT_CLONE git://github.com/dickens/libusb -b event-abstraction-v4
cd libusb
./autogen.sh
$GIT_CLONE git://github.com/dickens/libusb -b event-abstraction-v4
cd libusb
./autogen.sh
+./configure $C $L --disable-udev
make -j1 $V
make install $V
cd ..
make -j1 $V
make install $V
cd ..