Add in host library as well.

Change-Id: I3a373c076c7075ae0d0caadce379c65d674542c9
diff --git a/Android.mk b/Android.mk
index a7a0ac8..03d1c78 100644
--- a/Android.mk
+++ b/Android.mk
@@ -23,3 +23,12 @@
 
 # Include this library in the build server's output directory
 $(call dist-for-goals, droid, $(LOCAL_BUILT_MODULE):jsr305.jar)
+
+# Also build a host side library
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := $(call all-java-files-under, ri/src/main/java)
+
+LOCAL_MODULE := jsr305lib
+
+include $(BUILD_HOST_JAVA_LIBRARY)