[README] update installation instructions for macOS (missing dependencies) (original) (raw)

I believe this is an macOS issue only.

In short,

The following dependencies are also needed in addition to the current listed dependencies:

On macOS do: brew install libidn2 rtmpdump

Reason:
Both library are both GNU hence some linux distribution may ship with both of them. For instance on my Centos machine your instructions worked, in which macOS does NOT.