EVMC versioning is incompatible with the "EIP-centric hard forks" model

[axic]

See https://ethereum-magicians.org/t/eip-centric-forking/3536.

It requires EIPs to be implemented in clients and be switched on independently. They are only later assigned to a hard fork.

I am not sure what is the best course of action for EVMC.

[axic]

cc @chfast @chriseth

[chfast]

Extend the EVM revision type.

struct evmc_revision_ex 
{
    evmc_revision rev;
    uint32_t extensions;
};

[axic]

Do you mean that rev is the base revision on top extensions are enabled and the extension flags are specific to the revision?