I know it's been a while since you asked this, but in case anyone else is wondering, you can easily install xmrig on MacOS by following the build instructions on Github.

First you need to install Xcode from the App Store, and then you have to install Homebrew.

Once you have those dependencies, you need to run the commands given on the xmrig OS X Build instructions page (from a Terminal window):

brew install cmake libuv
git clone https://github.com/xmrig/xmrig.git
cd xmrig
mkdir build
cd build
cmake ..
make

This worked for me.

I know it's been a while since you asked this, but in case anyone else is wondering, you can easily install xmrig on MacOS by following the build instructions on Github.

First you need to install Xcode from the App Store, and then you have to install Homebrew.

Once you have those dependencies, you need to run the commands given on the xmrig OS X Build instructions page (from a Terminal window):

brew install cmake libuv
git clone https://github.com/xmrig/xmrig.git
cd xmrig
mkdir build
cd build
cmake ..
make

Once the compile process finishes successfully, there will be a binary executable in the build directory named xmrig. You can verify that it is there by running this command in the build directory:

ls -lah | grep xmrig

Run xmrig in OS X the same way you would in Linux. From the build directory, run the following command (I've included my preferred pool... feel free to replace it with whatever you use):

./xmrig -a cryptonight-lite -o "mine.aeon-pool.com:3333" - u YOUR_WALLET_ADDRESS -p x

You can optionally specify a donation level. By default, xmrig donates 5% of your mining time to the developer, but you can set it as low as 1%, depending on your generosity preferences.

Note: If you have a good CPU (hashrates over 300 H/s), you might want to mine on port 5555 instead of 3333, since it will start you at a higher difficulty (better earnings). Check your pool's "Getting Started" page for more details about what port numbers and difficulties are available.