Introduction
This guide explains how to install OR-Tools for Java on MacOS.
Although these instructions might also work on other MacOS variants, we have only tested them on machines meeting the following requirements:
- MacOS 10.15.2 (Catalina) 64-bit (x86_64)
Xcode Command Line Tools
You must install the Xcode Command Line Tools. To do so, open the Terminal, found in
/Applications/Utilities/, and enter:
xcode-select --install
Click “Install” to download and install Xcode Command Line Tools. You don’t need to "Get Xcode" from the App Store. If you have a slow Internet connection, it may take many minutes.
Verify that you’ve successfully installed Xcode Command Line Tools:
xcode-select -p
You should see:
/Applications/Xcode.app/Contents/Developer
Prerequisite: Java JDK
You must install the Java JDK 7.0 or higher. We recommend installing it using the "missing package manager for macOS" aka Homebrew:
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"brew update
Once you have installed Homebrew, you can install Java JDK using:
brew cask install java
Installing OR-Tools
Take the following steps to install the OR-Tools library for Java:
Download and extract the binary distribution for your system:
FlatZinc binary distributions
FlatZinc is a solver input language understood by a
wide range of solvers.
OR-Tools also provides binary distributions with FlatZinc support:
Validate your installation
To test your Java installations, open a terminal window and navigate to the directory where you unpacked the binary distribution. Then enter the following command:
make test_java
This runs a selection of examples for OR-Tools. If all the examples run successfully, you are ready to get started with OR-Tools.