Android Gradle Multi-Project Root Configuration

gistfile1.groovy

// Part I : Global BuildsScript Configuration
buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.8.0'
    }
}
 
// Part II : Global dependency variables
allprojects{
    // global scoped "ext" help variable
    project.ext {
        compileSdkVersion = 19
        buildToolsVersion = "19.0.1"
 
        supportLibraryVersion = "19.0.1"
    }
}
// access these variables in modules' build.gradle via 
  //  compileSdkVersion project.ext["compileSdkVersion"]
  //  buildToolsVersion project.ext["buildToolsVersion"]
  
  --> see https://sites.google.com/a/android.com/tools/tech-docs/new-build-system/tips