Untie MultinetworkApiTest from platform libc++.so

Bug: http://b/26512135
Change-Id: Ia01fd851fd7d2e50708620adf11d904e42de0b3b
diff --git a/tests/cts/net/Android.mk b/tests/cts/net/Android.mk
index 6524871..56729b6 100644
--- a/tests/cts/net/Android.mk
+++ b/tests/cts/net/Android.mk
@@ -27,7 +27,7 @@
 LOCAL_JAVA_LIBRARIES := voip-common conscrypt org.apache.http.legacy
 
 LOCAL_JNI_SHARED_LIBRARIES := libcts_jni libnativedns_jni \
-                              libnativemultinetwork_jni
+                              libnativemultinetwork_jni libnativehelper_compat_libc++
 
 # include CtsTestServer as a temporary hack to free net.cts from cts.stub.
 LOCAL_SRC_FILES := $(call all-java-files-under, src)
diff --git a/tests/cts/net/jni/Android.mk b/tests/cts/net/jni/Android.mk
index ca82b30..0ec8d28 100644
--- a/tests/cts/net/jni/Android.mk
+++ b/tests/cts/net/jni/Android.mk
@@ -25,8 +25,8 @@
 
 LOCAL_C_INCLUDES := $(JNI_H_INCLUDE)
 
-LOCAL_SHARED_LIBRARIES := libnativehelper liblog
-
+LOCAL_SHARED_LIBRARIES := libnativehelper_compat_libc++ liblog
+LOCAL_CXX_STL := libc++_static
 include $(BUILD_SHARED_LIBRARY)
 
 include $(CLEAR_VARS)
@@ -35,5 +35,6 @@
 LOCAL_MODULE_TAGS := optional
 LOCAL_SRC_FILES := NativeMultinetworkJni.c
 LOCAL_C_INCLUDES := $(JNI_H_INCLUDE)
-LOCAL_SHARED_LIBRARIES := libandroid libnativehelper liblog
+LOCAL_SHARED_LIBRARIES := libandroid libnativehelper_compat_libc++ liblog
+LOCAL_CXX_STL := libc++_static
 include $(BUILD_SHARED_LIBRARY)