--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/zlib/inftrees.h	Sat Dec 06 04:37:18 1997 +0000
@@ -0,0 +1,68 @@
+/* inftrees.h -- header to use inftrees.c
+ * Copyright (C) 1995 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.
+ */
+
+/* Huffman code lookup table entry--this entry is four bytes for machines
+   that have 16-bit pointers (e.g. PC's in the small or medium model).
+   Valid extra bits (exop) are 0..13.  exop == -64 is EOB (end of block),
+   exop == 16 means that v is a literal, exop < 0 means that v is a pointer
+   to the next table, which codes -exop bits, and lastly exop == -128
+   indicates an unused code.  If a code with exop == -128 is looked up,
+   this implies an error in the data. */
+
+#if defined(STDC) || defined(sgi)
+typedef signed char Char;
+#else
+typedef char Char; /* just hope that char is signed */
+#endif
+
+typedef struct inflate_huft_s inflate_huft;
+struct inflate_huft_s {
+  union {
+    struct {
+      Char Exop;        /* number of extra bits or operation */
+      Byte Bits;        /* number of bits in this code or subcode */
+    } what;
+    Byte *pad;          /* pad structure to a power of 2 (4 bytes for */
+  } word;               /*  16-bit, 8 bytes for 32-bit machines) */
+  union {
+    uInt Base;          /* literal, length base, or distance base */
+    inflate_huft *Next; /* pointer to next level of table */
+  } more;
+};
+
+#ifdef DEBUG
+  extern uInt inflate_hufts;
+#endif
+
+extern int inflate_trees_bits __P((
+    uInt *,                     /* 19 code lengths */
+    uInt *,                     /* bits tree desired/actual depth */
+    inflate_huft **,            /* bits tree result */
+    z_stream *));               /* for zalloc, zfree functions */
+
+extern int inflate_trees_dynamic __P((
+    uInt,                       /* number of literal/length codes */
+    uInt,                       /* number of distance codes */
+    uInt *,                     /* that many (total) code lengths */
+    uInt *,                     /* literal desired/actual bit depth */
+    uInt *,                     /* distance desired/actual bit depth */
+    inflate_huft **,            /* literal/length tree result */
+    inflate_huft **,            /* distance tree result */
+    z_stream *));               /* for zalloc, zfree functions */
+
+extern int inflate_trees_fixed __P((
+    uInt *,                     /* literal desired/actual bit depth */
+    uInt *,                     /* distance desired/actual bit depth */
+    inflate_huft **,            /* literal/length tree result */
+    inflate_huft **));          /* distance tree result */
+
+extern int inflate_trees_free __P((
+    inflate_huft *,             /* tables to free */
+    z_stream *));               /* for zfree function */