You could use 

#undef XSPROTO
#define XSPROTO(name) void name(pTHX_ struct cv* cv)

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This should be compatible with the typedef. An incomplete type declaration 
struct cv;

[download]
can't hurt either, though that shouldn't be necessary. Try this without that sneaky #define CV ...

However, your boot_pwiz_swigbindings takes two arguments, whereas SWIG_init is expected to take one. Something needs a fix there as well.

In reply to Re^5: SWIG and conflicting definitions by Anonymous Monk
in thread SWIG and conflicting definitions by jdv

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