Franz,
Yes, Mac has changed enough recently that installing the dependencies can be a
horrific hassle (specifically: the default use of clang instead of gcc).
A couple of options:
1. Install dependencies with homebrew http://brew.sh/.
2. Override the default use of clang, and instead use gcc.
Hi Joseph,
i accomplished installing treePL by following the instructions on the treePL
page (https://github.com/blackrim/treePL/wiki/Installation) but had to install
gcc 4.9 and nlopt manually.
gcc 4.7 didn't work.
The rest worked fine with homebrew!
Cheers,
Franz
Joseph W. Brown