#ifndef IPLIB
#define IPLIB

void gdswzd(int *kgds, int iopt, int npts, float fill,
            float *xpts, float *ypts, float *rlon, float *rlat,
            int *nret,
            float *crot, float *srot, float *xlon, float *xlat,
            float *ylon, float *ylat, float *area);

#endif