How to use ccache for C++ compilation for faster compile times

Development Platform & Builds
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1

It would be nice to be able to use e.g. ccache to speed up compile times on at least linux based systems. Is there a way to activate this? like overriding CC and CXX env vars?

2

Here is my pull request for this: https://github.com/EpicGames/UnrealEngine/pull/1672