[Pyrex] Wrapping nested structs

[Edward C. Jones]

How do I wrap the following four snippets of code?

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typedef struct _Small {
     int i;
} Small;

typedef struct _AAA {
     Small sm;
} AAA;

Small clone(Small sm);

--------------------------------

typedef struct _BBB {
     struct {
         int i;
     } Small;
} BBB;

--------------------------------

typedef struct _CCC {
     union {
         int i;
         float x;
     } Num;
} CCC;

--------------------------------

typedef struct _Point {
     union {
         int x;
         int col;
     };
     union {
         int y;
         int row;
     };
} Point;

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Thanks,
Ed Jones