A static swapped_op[] array was defined in 3 different C files, & I think
I need to define it again. Bite the bullet and define it once as an
extern, _Py_SwappedOp[].
diff --git a/Include/object.h b/Include/object.h
index 258b074..fd7c235 100644
--- a/Include/object.h
+++ b/Include/object.h
@@ -667,6 +667,11 @@
#define Py_GT 4
#define Py_GE 5
+/* Maps Py_LT to Py_GT, ..., Py_GE to Py_LE.
+ * Defined in object.c.
+ */
+PyAPI_DATA(int) _Py_SwappedOp[];
+
/*
Define staticforward and statichere for source compatibility with old
C extensions.