libreoffice-online/android/build.gradle.in

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildDir = "@abs_top_builddir@/android/build"

buildscript {
    repositories {
        google()
        mavenCentral()
    }
    dependencies {
        // before updating make sure https://issuetracker.google.com/issues/293294923 is fixed
        classpath 'com.android.tools.build:gradle:3.6.4'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        mavenCentral()
    }
}

tasks.register('clean', Delete) {
    delete rootProject.buildDir
}

afterEvaluate {
    clean.dependsOn(':lib:clean')
}