What counts as a fork? (was: Re: [Proposal-ish?] Lua should bind the Lua C API as a Lua module)

["Soni \"They/Them\" L." <fakedme@...>]

On 2017-11-28 10:52 AM, Luiz Henrique de Figueiredo wrote:
> > in your view if Soni made a copy of Lua and did not change the
> > language itself, but rather only the libraries or other non parser/VM
> > changes that does not count as a fork? Even if the new libraries offer
> > functionality not present in vanilla Lua?
> No, in both cases, it's not a fork. That's what the FAQ says.

If someone changes an opcode in the VM to bring old behaviour back (like 
lua 5.3.4's OP_SELF only accepting strings), is that a fork?

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