Scalajs-react-independent/project/ScalacOptions.scala

object ScalacOptions {
  val flags = Seq(
    "-deprecation", // Emit warning and location for usages of deprecated APIs.
    "-encoding",
    "utf-8", // Specify character encoding used by source files.
    "-explaintypes", // Explain type errors in more detail.
    "-feature", // Emit warning and location for usages of features that should be imported explicitly.
    "-unchecked", // Enable additional warnings where generated code depends on assumptions.
    "-Ymacro-annotations"
  )
}