Backport of the print function, using a __future__ import.
This work is substantially Anthony Baxter's, from issue
1633807.  I just freshened it, made a few minor tweaks,
and added the test cases.  I also created issue 2412,
which is to check for 2to3's behavior with the print
function.  I also added myself to ACKS.
diff --git a/Include/compile.h b/Include/compile.h
index 2bde6fb..d703edb 100644
--- a/Include/compile.h
+++ b/Include/compile.h
@@ -24,6 +24,8 @@
 #define FUTURE_DIVISION "division"
 #define FUTURE_ABSOLUTE_IMPORT "absolute_import"
 #define FUTURE_WITH_STATEMENT "with_statement"
+#define FUTURE_PRINT_FUNCTION "print_function"
+
 
 struct _mod; /* Declare the existence of this type */
 PyAPI_FUNC(PyCodeObject *) PyAST_Compile(struct _mod *, const char *,