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Required prerequisites

You must be running on a suitable machine and 64-bit OS. The install or upgrade script you used to download MagLev should have complained if your machine was not suitable.

Optional prerequisites

If you have rlwrap (a GNU readline wrapper) installed on your machine, you will be able to do keyboard editing of input to maglev-irb and to Topaz while debugging. On Linux, if you do not have rlwrap installed, you will see warnings about its absence when entering Topaz or maglev-irb.