Steps I took were:
- Download LCDproc source from the official website
- Install libusb from homebrew (brew install libusb)
- Install libftdi from homebrew (brew install libftdi) <-- this was needed because I used a FT245RL brekout board to connect it.
- Configure with "./configure --prefix=/usr/local/ --enable-drivers=all --includedir=/usr/local/include/ --enable-libftdi=yes"
- make -j6
- sudo make install
Then changed /usr/local/etc/LCDd.conf like this: (only changed/added values shown).
Of course, you need to have the XCode Command Line tools installed. Also I had the FTDI D2XX driver already installed, the VCP drivers will most likely conflict with libftdi.
You can get them on http://www.ftdichip.com/Drivers/D2XX.htm
I also got it showing my Growl notifications thanks to http://maclcd.blogspot.nl/