First, be sure that your environment can run Eclipse. Recent vintages of Eclipse require at least Java 1.8. If you do not have Java at all, or if your Java version is earlier than 1.8, get and install an appropriate version of java before proceeding.
Start by installing Eclipse in your environment.
The Eclipse project offers an Eclipse installer which can be downloaded and run, or you can select a specific version of Eclipse to install and use. We suggest using the Mars release, at minimum.
We suggest that you configure PALISADE as a Makefile project and use the Makefiles provided in the PALISADE distribution. The Makefiles contain all of the necessary flags to compile the library properly.