Default --collapse_duplicate_defines to true.
@@ -102,7 +102,7 @@ public class CoreOptions extends FragmentOptions implements Cloneable {
@Option(
name = "collapse_duplicate_defines",
- defaultValue = "false",
+ defaultValue = "true",
documentationCategory = OptionDocumentationCategory.BUILD_TIME_OPTIMIZATION,
effectTags = {
OptionEffectTag.LOADING_AND_ANALYSIS,
