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kotlinlang

KT-17245 is not about options of Kotlin compiler, it is about javac options to KAPT (which uses javac internally).
<@U0BAF68H2> 
There are several ways to pass some options to the compiler:
1. Options can be set for each task. Please note that when `kotlin-android` plugin is used, Kotlin tasks patch the pattern `compile&lt;VARIANT_NAME&gt;Kotlin`. Also when `kotlin-android` is used, tasks are created after configuration phase, so you can refer to tasks only in `afterEvaluate` block:
```
afterEvaluate {
    compileDebugKotlin {
          kotlinOptions {
               // see the docs for the list of options <https://kotlinlang.org/docs/reference/using-gradle.html#attributes-specific-for-jvm>
          }
    }
}
```
2. Options can be set per project by using `kotlinOptions` extension in `android` block:
```
apply plugin: 'kotlin-android'

android {
     kotlinOptions {
           // ...
     }
}
```
The list of options that can be set using DSL can be found here <https://kotlinlang.org/docs/reference/using-gradle.html#attributes-specific-for-jvm>

There is `freeCompilerArgs` for options that cannot be set using DSL