Snap for 4373608 from 56aea7635113a8e42e0fd2addcb7f1f3b2e8feba to pi-release

Change-Id: Iecfc5e57182f4b6a8c93dc19d854965b39c67c70
diff --git a/Android.bp b/Android.bp
index 29722c4..f7d729f 100644
--- a/Android.bp
+++ b/Android.bp
@@ -17,6 +17,8 @@
 cc_defaults {
     name: "libprotobuf-c-nano-defaults",
     cflags: [
+        "-Wall",
+        "-Werror",
         "-Wno-sign-compare",
         "-Wno-unused-parameter",
     ],