pub unsafe extern "C" fn GDALCreateGenImgProjTransformer4( hSrcSRS: OGRSpatialReferenceH, padfSrcGeoTransform: *const f64, hDstSRS: OGRSpatialReferenceH, padfDstGeoTransform: *const f64, papszOptions: *const *const c_char) -> *mut c_void