Subzero: The cross tests should use the actual Subzero runtime.

runtime/szrt.cpp

Index: runtime/szrt.cpp
diff --git a/runtime/szrt.cpp b/runtime/szrt.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..8468126afbcb011d0cd6dc31fadb0d14848b122e
--- /dev/null
+++ b/runtime/szrt.cpp
@@ -0,0 +1,17 @@
+//===- subzero/runtime/szrt.cpp - Subzero runtime source ------------------===//
+//
+//                        The Subzero Code Generator
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is a C++ wrapper to szrt.c since g++ complains about .c

[jvoung (off chromium), 2014/09/09 21:19:33]

For the comment, aren't we using clang++ instead of g++?

[Jim Stichnoth, 2014/09/09 21:40:45]

Ah, you're right.  I was thinking of szbuild.py, but that is actually using gcc,
and besides it's only clang++ that complains.

+// files.
+//
+//===----------------------------------------------------------------------===//
+
+extern "C" {
+#include "szrt.c"
+}