1 files changed, 8 insertions, 0 deletions
diff --git a/build.gradle b/build.gradle
index f8e6afc27..6b3eb2c3d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,6 +6,7 @@ buildscript {
     dependencies {
         // NOTE: Always use fixed version codes not dynamic ones, e.g. 0.7.3 instead of 0.7.+, see README for more information
         classpath 'com.android.tools.build:gradle:1.0.0'
+        classpath files('gradle-witness.jar')
     }
 }
 
@@ -38,3 +39,10 @@ project(':extern:spongycastle') {
         test.enabled = false
     }
 }
+
+// SDK Version and Build Tools used by all subprojects
+// See http://tools.android.com/tech-docs/new-build-system/tips#TOC-Controlling-Android-properties-of-all-your-modules-from-the-main-project.
+ext {
+    compileSdkVersion = 21
+    buildToolsVersion = '21.1.2'
+}
+\ No newline at end of file