How to add opt-in annotation to `build.gradle.kts`...

# compose-desktop

[Philip Dukhov]

How to add opt-in annotation to build.gradle.kts? In Android I can use android.kotlinOptions.freeCompilerArgs += "...", in KMM - kotlin.sourceSets.all.languageSettings.optIn("..."), but how to do it in compose-desktop?

[Albert Chang]

tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile> {
    kotlinOptions {
        freeCompilerArgs = freeCompilerArgs + "-Xopt-in=kotlin.RequiresOptIn"
    }
}

This also works for Android modules so you can put this in subprojects block of your project's root build.gradle.kts so that you don't need to add this for every module.