To install the build dependencies, use XCode and Homebrew. There is a script for installing the dependencies:

https://github.com/glaubitz/linux-minidisc/blob/master/build/install_dependencies.sh

At the moment, the build dependencies can be installed with:

      brew update
      brew install --force qt5 mad libid3tag libtag glib libusb libusb-compat libgcrypt
      brew link --force qt5