--- zlib-1.2.11/contrib/s390/dfltcc_deflate.h.old	2023-05-04 09:39:23.423753908 +0000

+++ zlib-1.2.11/contrib/s390/dfltcc_deflate.h	2023-05-04 09:39:48.087753908 +0000

@@ -45,11 +45,11 @@ int ZLIB_INTERNAL dfltcc_deflate_get_dic

 #define DEFLATE_DONE dfltcc_deflate_done

 #define DEFLATE_BOUND_ADJUST_COMPLEN(strm, complen, source_len) \

     do { \

-        if (dfltcc_can_deflate((strm))) \

+	if (deflateStateCheck((strm)) || dfltcc_can_deflate((strm))) \

             (complen) = DEFLATE_BOUND_COMPLEN(source_len); \

     } while (0)

 #define DEFLATE_NEED_CONSERVATIVE_BOUND(strm) (dfltcc_can_deflate((strm)))

 #define DEFLATE_HOOK dfltcc_deflate

 #define DEFLATE_NEED_CHECKSUM(strm) (!dfltcc_can_deflate((strm)))

-#endif

\ No newline at end of file

+#endif