This rudimentary script builds the OS-X toolchain for FreeEMS
run "./make_OS-X_toolchain all" and go do something for 45 minutes.


If you look at "make_OS-X_toolchain", itl install everything into the 
$CWD/toolchain (current directory/toolchain). Move the contents wherever
you wish and set path accordingly.

i.e.

./make_OS-X_toolchain all
  < wait till it completes >
sudo mv toolchain /opt/FreeEMS-Toolchain
export PATH=$PATH:/opt/FreeEMS-Toolchain/bin