All warnings should be enabled/errors in libbcc.

Change-Id: Ib2b440362e0d30d74d8e6a8a41fb8ae8c7438771
diff --git a/Android.mk b/Android.mk
index b964378..63bd8c0 100644
--- a/Android.mk
+++ b/Android.mk
@@ -16,6 +16,8 @@
 
 ifneq ($(TARGET_SIMULATOR),true)
 
+local_cflags_for_libbcc := -Wall -Werror
+
 LOCAL_PATH := $(call my-dir)
 
 LLVM_ROOT_PATH := external/llvm
@@ -62,6 +64,7 @@
 LOCAL_PRELINK_MODULE := false
 LOCAL_MODULE := libbcc
 LOCAL_MODULE_TAGS := optional
+LOCAL_CFLAGS += $(local_cflags_for_libbcc)
 LOCAL_SRC_FILES := \
   $(libbcc_SRC_FILES)
 
@@ -202,6 +205,7 @@
 
 LOCAL_MODULE := libbcc
 LOCAL_MODULE_TAGS := optional
+LOCAL_CFLAGS += $(local_cflags_for_libbcc)
 LOCAL_SRC_FILES := \
   $(libbcc_SRC_FILES) \
   helper/DebugHelper.c