deflateInit2
ret = deflateInit2(strm, level, Z_DEFLATED, -15, 8, Z_DEFAULT_STRATEGY);
if (deflateInit2(&strm, Z_DEFAULT_COMPRESSION, Z_DEFLATED, -15, 8,
ret = deflateInit2(strm, state->level, Z_DEFLATED,
ret = deflateInit2(&(gz->strm), -1, 8, 15 + 16, 8, 0);
if (deflateInit2(&state->strm, Z_DEFAULT_COMPRESSION, DEFLATE_METHOD_VAL,
deflateInit2(&zbuf, Z_DEFAULT_COMPRESSION, Z_METHOD,
deflateInit2(&zbuf, Z_DEFAULT_COMPRESSION, Z_METHOD,
error = deflateInit2(&z, numflag, Z_DEFLATED,