On the Installation Guide page of the FreeSwitch wiki, it says the following:

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You can use multiple cores for your bootstrap/config/build, by specifying it at the start, e.g.: (note this may make build errors harder to spot)

 ./bootstrap.sh -j4
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I looked through the bootstrap.sh code, and it appears that the trailing digit in the above example is ignored?  Or am I missing something?

I was thinking/hoping it was a way to specify the maximum # of background processes that get created.  At this point I assume it is just an error in the wiki.