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diff --git a/tcl8.6/compat/zlib/contrib/infback9/inftree9.h b/tcl8.6/compat/zlib/contrib/infback9/inftree9.h
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--- a/tcl8.6/compat/zlib/contrib/infback9/inftree9.h
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-/* inftree9.h -- header to use inftree9.c
- * Copyright (C) 1995-2008 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-/* WARNING: this file should *not* be used by applications. It is
- part of the implementation of the compression library and is
- subject to change. Applications should only use zlib.h.
- */
-
-/* Structure for decoding tables. Each entry provides either the
- information needed to do the operation requested by the code that
- indexed that table entry, or it provides a pointer to another
- table that indexes more bits of the code. op indicates whether
- the entry is a pointer to another table, a literal, a length or
- distance, an end-of-block, or an invalid code. For a table
- pointer, the low four bits of op is the number of index bits of
- that table. For a length or distance, the low four bits of op
- is the number of extra bits to get after the code. bits is
- the number of bits in this code or part of the code to drop off
- of the bit buffer. val is the actual byte to output in the case
- of a literal, the base length or distance, or the offset from
- the current table to the next table. Each entry is four bytes. */
-typedef struct {
- unsigned char op; /* operation, extra bits, table bits */
- unsigned char bits; /* bits in this part of the code */
- unsigned short val; /* offset in table or code value */
-} code;
-
-/* op values as set by inflate_table():
- 00000000 - literal
- 0000tttt - table link, tttt != 0 is the number of table index bits
- 100eeeee - length or distance, eeee is the number of extra bits
- 01100000 - end of block
- 01000000 - invalid code
- */
-
-/* Maximum size of the dynamic table. The maximum number of code structures is
- 1446, which is the sum of 852 for literal/length codes and 594 for distance
- codes. These values were found by exhaustive searches using the program
- examples/enough.c found in the zlib distribtution. The arguments to that
- program are the number of symbols, the initial root table size, and the
- maximum bit length of a code. "enough 286 9 15" for literal/length codes
- returns returns 852, and "enough 32 6 15" for distance codes returns 594.
- The initial root table size (9 or 6) is found in the fifth argument of the
- inflate_table() calls in infback9.c. If the root table size is changed,
- then these maximum sizes would be need to be recalculated and updated. */
-#define ENOUGH_LENS 852
-#define ENOUGH_DISTS 594
-#define ENOUGH (ENOUGH_LENS+ENOUGH_DISTS)
-
-/* Type of code to build for inflate_table9() */
-typedef enum {
- CODES,
- LENS,
- DISTS
-} codetype;
-
-extern int inflate_table9 OF((codetype type, unsigned short FAR *lens,
- unsigned codes, code FAR * FAR *table,
- unsigned FAR *bits, unsigned short FAR *work));