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