How to do incremental build?

[ghost]

For example, after a git pull, do I have to clean everything with make -e config=release_x86_64 -C make/windows clean or can I simply do make -e config=release_x86_64 -C make/windows? The compilation takes a very long time for each clean build.

[SpartanJ]

If you don't clean it will always do an incremental build, you shouldn't clean the object cache unless there's a very good reason (hint: I almost never do a clean build).