zlib 1.0.4

README

@@ -1,4 +1,4 @@
-zlib 1.0.2 is a general purpose data compression library.  All the code
+zlib 1.0.4 is a general purpose data compression library.  All the code
 is reentrant (thread safe).  The data format used by the zlib library
 is described by RFCs (Request for Comments) 1950 to 1952 in the files 
 ftp://ds.internic.net/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate
@@ -18,21 +18,17 @@ makefiles such as Makefile.msc; for VMS, use Make_vms.com or descrip.mms.
 
 Questions about zlib should be sent to <zlib@quest.jpl.nasa.gov> or,
 if this fails, to the addresses given below in the Copyright section.
+The zlib home page is http://quest.jpl.nasa.gov/zlib/
 
-The changes made in version 1.0.2 are documented in the file ChangeLog.
-The main changes since 0.99 are:
+The changes made in version 1.0.4 are documented in the file ChangeLog.
+The main changes since 1.0.3 are:
+
+- In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF
+  bit, so the decompressor could decompress all the correct data but went
+  on to attempt decompressing extra garbage data. This affected minigzip too.
+- zlibVersion and gzerror return const char* (needed for DLL)
+- port to RISCOS (no fdopen, no multiple dots, no unlink, no fileno)
 
-- fix array overlay in deflate.c which sometimes caused bad compressed data
-- fix inflate bug with empty stored block
-- fix MSDOS medium model which was broken in 0.99
-- fix deflateParams() which could generated bad compressed data.
-- added an INDEX file
-- new makefiles for DJGPP (Makefile.dj2), 32-bit Borland (Makefile.b32),
-  Watcom (Makefile.wat), Amiga SAS/C (Makefile.sas)
-- several portability improvements
-- added algorithm.doc
-- added Windows DLL support
-- added a function zlibVersion (for the DLL support)
 
 A Perl interface to zlib written by Paul Marquess <pmarquess@bfsec.bt.co.uk>
 is in the CPAN (Comprehensive Perl Archive Network) sites, such as:
@@ -46,7 +42,7 @@ Notes for some targets:
 
 - For 64-bit Iris, deflate.c must be compiled without any optimization.
   With -O, one libpng test fails. The test works in 32 bit mode (with
-  the -32 compiler flag).
+  the -32 compiler flag). The compiler bug has been reported to SGI.
 
 - zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1   
   it works when compiled with cc.
@@ -57,7 +53,10 @@ Notes for some targets:
 - To build a Windows DLL version, include in a DLL project zlib.def, zlib.rc
   and all .c files except example.c and minigzip.c; compile with -DZLIB_DLL
   For help on building a zlib DLL, contact Alessandro Iacopetti
-  <iaco@cicladi.unial.it>
+  <iaco@email.alessandria.alpcom.it>  http://lisa.unial.it/iaco ,
+  or contact Brad Clarke <bclarke@cyberus.ca>.
+
+- gzdopen is not supported on RISCOS
 
 
 Acknowledgments: