Remove irritating warnings about 'va_list' mangling when building C++ sources.

Change-Id: I6305e93515e57462e7c57af0cc41a659e4190696

core/combo/TARGET_linux-arm.mk

@@ -104,6 +104,16 @@ TARGET_GLOBAL_CFLAGS += \
 			-include $(android_config_h) \
 			-I $(arch_include_dir)
 
+# This is to avoid the dreaded warning compiler message:
+#   note: the mangling of 'va_list' has changed in GCC 4.4
+#
+# The fact that the mangling changed does not affect the NDK ABI
+# very fortunately (since none of the exposed APIs used va_list
+# in their exported C++ functions). Also, GCC 4.5 has already
+# removed the warning from the compiler.
+#
+TARGET_GLOBAL_CFLAGS += -Wno-psabi
+
 TARGET_GLOBAL_LDFLAGS += \
 			-Wl,-z,noexecstack \
 			$(arch_variant_ldflags)