1 files changed, 1 insertions, 0 deletions
diff --git a/libcxx.mk b/libcxx.mk
index b6ab7b79e..a3258656a 100644
--- a/libcxx.mk
+++ b/libcxx.mk
@@ -20,6 +20,7 @@ LOCAL_C_INCLUDES := \
 	external/libcxx/include \
 	$(LOCAL_C_INCLUDES) \
 
+LOCAL_CFLAGS += -D_USING_LIBCXX
 LOCAL_CPPFLAGS += -nostdinc++
 LOCAL_LDFLAGS += -nodefaultlibs
 LOCAL_LDLIBS += -lm -lc