The binaries compiled on the ANL page should work.

http://www.aps.anl.gov/Accelerator_Systems_Division/Accelerator_Operations_Physics/cgi-bin/oagLog4.cgi?name=darwin-x86_elegant.tar.gz

You will need to download them to a location and add that location to your path. I would extract to $HOME/opt/bin:

tar xfvz darwin-x86_elegant.tar.gz
mkdir $HOME/opt/bin
cp darwin-x86/* $HOME/opt/

There isn't very good support on either Matlab or Python for loading data. There are command line routines put together by ANL.

There are some demo files here:

http://www.aps.anl.gov/Accelerator_Systems_Division/Accelerator_Operations_Physics/cgi-bin/oagLog4.cgi?name=elegantExamples.tar.gz