Silence "note: the mangling of 'va_list' has changed in GCC 4.4".

Not strictly necessary for turning on -Werror for libcore, but worth doing
anyway.
diff --git a/libcore/NativeCode.mk b/libcore/NativeCode.mk
index 57c4903..38ff709 100644
--- a/libcore/NativeCode.mk
+++ b/libcore/NativeCode.mk
@@ -85,6 +85,11 @@
 
 include $(CLEAR_VARS)
 
+ifeq ($(TARGET_ARCH),arm)
+# Ignore "note: the mangling of 'va_list' has changed in GCC 4.4"
+LOCAL_CFLAGS += -Wno-psabi
+endif
+
 # Define the rules.
 LOCAL_SRC_FILES := $(core_src_files)
 LOCAL_C_INCLUDES := $(core_c_includes)