Show solcjs compilation flags information

[adria0]

There's a tuning about optimization loops in

truffle-compile/index.js

Line 70 in 331809c

runs: 0 // See https://github.com/ethereum/solidity/issues/2245

but, since this modification it's not a default in solcjs, and it is not warned there's no way to verify the code in etherscan once deployed.

I sent a email to etherscan about supporting this compilation flag, too.

[tcoulter]

We'll add the default parameters to our documentation. We've created a ticket that will allow people to override the default compiler optimization setting. trufflesuite/truffle#486.

[tcoulter]

Thanks!