How to build optimized version of Swift Package using the Swift Package Manager `swift build` command
<p>I want to compile my swift code written in the new Swift Package Manager format into highly optimized binary code. This is possible currently using <code>swiftc -O somefile.swift</code> But since the swift packages are built using <code>swift build</code> command, I cannot pass <code>-O</code> option as it does not accept it. So is there a way to specify to optimize the code during the compile process?</p>