Provide a default liboemcrypto called liboemstub for devices that do not have widevine OEM integration but still build the wv libs.

Change-Id: Iaa577416f3996677af234738ac0cd3344bbee9bc

proprietary/drmwvmplugin/Android.mk

@@ -1,3 +1,5 @@
+ifeq ($(TARGET_ARCH),arm)
+
 LOCAL_PATH:= $(call my-dir)
 include $(CLEAR_VARS)
 
@@ -13,8 +15,6 @@ include $(BUILD_PREBUILT)
 
 include $(CLEAR_VARS)
 
-ifeq ($(TARGET_ARCH),arm)
-
 LOCAL_SRC_FILES:= \
     src/WVMDrmPlugin.cpp \
     src/WVMLogging.cpp
@@ -31,8 +31,7 @@ LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/drm
 
 LOCAL_STATIC_LIBRARIES := \
     libdrmframeworkcommon \
-    libwvocs \
-    liboemcrypto
+    libwvocs
 
 LOCAL_SHARED_LIBRARIES := \
     libutils              \
@@ -43,9 +42,19 @@ LOCAL_SHARED_LIBRARIES := \
     libWVStreamControlAPI
 
 ifneq (,$(filter stingray wingray, $(TARGET_DEVICE)))
+
+# stingray/wingray security lib provided by motorola for widevine
+LOCAL_STATIC_LIBRARIES += \
+    liboemcrypto
+
 LOCAL_SHARED_LIBRARIES += \
     libtpa                \
     libtpa_core
+else
+# for devices that don't support WV drm liboemcrypto.a is not provided by the vendor
+# Use liboemstub instead
+LOCAL_STATIC_LIBRARIES += \
+    liboemstub
 endif
 
 ifeq ($(TARGET_SIMULATOR),true)
@@ -65,4 +74,7 @@ LOCAL_MODULE_TAGS := optional
 
 include $(BUILD_SHARED_LIBRARY)
 
+# invoke Android.mk files in subdirs
+include $(call all-makefiles-under,$(LOCAL_PATH))
+
 endif