voidpc
local z_size_t gz_write(gz_statep state, voidpc buf, z_size_t len) {
int ZEXPORT gzwrite(gzFile file, voidpc buf, unsigned len) {
z_size_t ZEXPORT gzfwrite(voidpc buf, z_size_t size, z_size_t nitems,
ZEXTERN int ZEXPORT gzwrite(gzFile file, voidpc buf, unsigned len);
ZEXTERN z_size_t ZEXPORT gzfwrite(voidpc buf, z_size_t size,