pub unsafe extern "C" fn OSRGetAreaOfUse( hSRS: OGRSpatialReferenceH, pdfWestLongitudeDeg: *mut f64, pdfSouthLatitudeDeg: *mut f64, pdfEastLongitudeDeg: *mut f64, pdfNorthLatitudeDeg: *mut f64, ppszAreaName: *mut *const c_char) -> c_int