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diff --git a/common/python/2.5/longintrepr.h b/common/python/2.5/longintrepr.h
new file mode 100644
index 0000000..b1574ba
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+++ b/common/python/2.5/longintrepr.h
@@ -0,0 +1,63 @@
+#ifndef Py_LONGINTREPR_H
+#define Py_LONGINTREPR_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* This is published for the benefit of "friend" marshal.c only. */
+
+/* Parameters of the long integer representation.
+   These shouldn't have to be changed as C should guarantee that a short
+   contains at least 16 bits, but it's made changeable anyway.
+   Note: 'digit' should be able to hold 2*MASK+1, and 'twodigits'
+   should be able to hold the intermediate results in 'mul'
+   (at most (BASE-1)*(2*BASE+1) == MASK*(2*MASK+3)).
+   Also, x_sub assumes that 'digit' is an unsigned type, and overflow
+   is handled by taking the result mod 2**N for some N > SHIFT.
+   And, at some places it is assumed that MASK fits in an int, as well.
+   long_pow() requires that SHIFT be divisible by 5. */
+
+typedef unsigned short digit;
+typedef unsigned int wdigit; /* digit widened to parameter size */
+#define BASE_TWODIGITS_TYPE long
+typedef unsigned BASE_TWODIGITS_TYPE twodigits;
+typedef BASE_TWODIGITS_TYPE stwodigits; /* signed variant of twodigits */
+
+#define SHIFT	15
+#define BASE	((digit)1 << SHIFT)
+#define MASK	((int)(BASE - 1))
+
+#if SHIFT % 5 != 0
+#error "longobject.c requires that SHIFT be divisible by 5"
+#endif
+
+/* Long integer representation.
+   The absolute value of a number is equal to
+   	SUM(for i=0 through abs(ob_size)-1) ob_digit[i] * 2**(SHIFT*i)
+   Negative numbers are represented with ob_size < 0;
+   zero is represented by ob_size == 0.
+   In a normalized number, ob_digit[abs(ob_size)-1] (the most significant
+   digit) is never zero.  Also, in all cases, for all valid i,
+   	0 <= ob_digit[i] <= MASK.
+   The allocation function takes care of allocating extra memory
+   so that ob_digit[0] ... ob_digit[abs(ob_size)-1] are actually available.
+
+   CAUTION:  Generic code manipulating subtypes of PyVarObject has to
+   aware that longs abuse  ob_size's sign bit.
+*/
+
+struct _longobject {
+	PyObject_VAR_HEAD
+	digit ob_digit[1];
+};
+
+PyAPI_FUNC(PyLongObject *) _PyLong_New(Py_ssize_t);
+
+/* Return a copy of src. */
+PyAPI_FUNC(PyObject *) _PyLong_Copy(PyLongObject *src);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* !Py_LONGINTREPR_H */