Good news everyone!
Paul Fitzpatrick just posted this on the robotcub hackers list, a very quick and easy way to install ACE and YARP on OSX:
ACE and YARP are now available through homebrew, a package manager for Macs . On a fresh Mac with Xcode installed, you can install YARP by opening a terminal and doing:
# install homebrew
ruby -e “$(curl -fsSL https://raw.github.com/gist/323731)”
# install ace, gsl, gtk+, and yarp
brew install yarp
That gets a big yay from me! Thanks Paul!