[DEV] How to install Elasticsearch 7.4.2 for Linux ppc64le?

[tle]

AFIK ES does not officially support PowerPC and I am not aware of any custom distribution that support linux ppc64le.

Because ES is written in Java, that means it is super trivial to get it compiled under linux ppc64le host.

If you are interested in how, please have a look at my build script