adler32_combine
uLong ZEXPORT adler32_combine(uLong adler1, uLong adler2, z_off_t len2) {
# define adler32_combine z_adler32_combine
# define adler32_combine adler32_combine64
uLong ZEXPORT adler32_combine(uLong adler1, uLong adler2, z_off_t len2) {
# define adler32_combine z_adler32_combine
# define adler32_combine adler32_combine64