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diff --git a/gcc/testsuite/g++.old-deja/g++.other/builtins10.C b/gcc/testsuite/g++.old-deja/g++.other/builtins10.C
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+// Build don't link:
+// Test that built-in functions don't warn when prototyped without arguments.
+// Origin: PR c++/9367
+// Copyright (C) 2003 Free Software Foundation.
+
+extern "C" int snprintf();
+