Imported from libpng-1.0.9.tar

Imported from libpng-1.0.9rc2.tar
Imported from libpng-1.0.9beta9.tar
2025-07-10 18:04:09 +02:00 · 2009-04-06 16:05:56 -05:00 · 2009-04-06 16:05:54 -05:00 · 2009-04-06 16:05:52 -05:00 · 2009-04-06 16:05:51 -05:00 · 2009-04-06 16:05:49 -05:00
105 changed files with 9243 additions and 4879 deletions
--- a/62
+++ b/62
@@ -1,20 +1,58 @@

-Libpng 1.0.8beta3 - July 11, 2000
+Libpng 1.0.9 - January 31, 2001

 This is a public release of libpng, intended for use in production codes.

-Changes since the last public release (1.0.7):
+Changes since the last public release (1.0.8):

-  Added png_free(png_ptr, key) two places in pngpread.c to stop memory leaks.
-  Changed PNG_NO_STDIO to PNG_NO_CONSOLE_IO, several places in pngrutil.c and
-     pngwutil.c.
-  Changed PNG_EXPORT_VAR to use PNG_IMPEXP, in pngconf.h.
-  Removed unused "#include <assert.h>" from png.c
-  Added WindowsCE support.
-  Revised pnggccrd.c to work with gcc-2.95.2 and in the Cygwin environment.
-  Only set the PNG_FLAG_FREE_TRNS or PNG_FREE_TRNS flag in png_handle_tRNS()
-     for indexed-color input files to avoid potential double-freeing trans array
-     under some unusual conditions; problem was introduced in version 1.0.7.
+  Fixed typo in scripts/makefile.hpux
+  Fixed seqence-point bug in contrib/pngminus/png2pnm (Martin Zinser)
+  Updated makevms.com in scripts and contrib/* and contrib/* (Martin Zinser)
+  Changed "cdrom.com" in documentation to "libpng.org"
+  Revised pnggccrd.c to get it all working, and updated makefile.gcmmx (Greg).
+  Changed type of "params" from voidp to png_voidp in png_read|write_png().
+  Added MNG_EXTENSIONS_SUPPORTED macro and support for some proposed MNG
+     features, for testing purposes.
+  Make sure PNGAPI and PNG_IMPEXP are defined in pngconf.h.
+  Revised the 3 instances of WRITEFILE in pngtest.c.
+  Updated png.rc in dll/msvc project
+  Revised makefile.dec to define and use LIBPATH and INCPATH
+  Increased size of global png_libpng_ver[] array from 12 to 18 chars.
+  Made global png_libpng_ver[], png_sig[] and png_pass_*[] arrays const.
+  Removed duplicate png_crc_finish() from png_handle_bKGD() function.
+  Added a warning when application calls png_read_update_info() multiple times.
+  Revised makefile.cygwin
+  Fixed bugs in iCCP support in pngrutil.c and pngwutil.c.
+  Replaced png_set_empty_plte_permitted() with png_permit_mng_features().
+  Relocated "msvc" and "wince" project subdirectories into "projects"
+    subdirectory and added projects/borland project subdirectory.
+  Set VS_FF_PRERELEASE and VS_FF_PATCHED flags in msvc/png.rc when appropriate.
+  Add error message in png_set_compression_buffer_size() when malloc fails.
+  Revised PNG_LIBPNG_BUILD_TYPE macro in png.h, used in the msvc project.
+  Removed the png_flush() in pngwrite.c that crashes some applications
+    that don't set png_output_flush_fn.
+  Added makefile.macosx and makefile.aix to scripts directory.
+  Change png_chunk_warning to png_warning in png_check_keyword().
+  Increased the first part of msg buffer from 16 to 18 in png_chunk_error().
+  Added support for filter method 64 (for PNG datastreams embedded in MNG)
+  Revised png_set_filter() to accept filter method 64 when appropriate.
+  Added new PNG_HAVE_PNG_SIGNATURE bit to png_ptr->mode and use it to
+    help prevent applications from using MNG features in PNG datastreams.
+  Revised libpng.3/libpng.txt.  Changed "filter type" to "filter method".
+  Fixed error handling of unknown compression type in png_decompress_chunk().
+  In pngconf.h, define __cdecl when _MSC_VER is defined.
+  Changed PNG_TEXT_COMPRESSION_zTXt to PNG_COMPRESSION_TYPE_BASE several places.
+  Revised memory management in png_set_hIST and png_handle_hIST in a backward
+    compatible manner.  PLTE and tRNS were revised similarly.
+  Revised the iCCP chunk reader to ignore trailing garbage.
+  Moved pngasmrd.h into pngconf.h.
+  Improved handling of out-of-spec garbage iCCP chunks generated by PhotoShop.
+  Added png_set_invalid to wince and msvc project module definition files.
+  Fixed bug with progressive reading of narrow interlaced images in pngpread.c
+  Do not typedef png_FILE_io in pngconf.h when PNG_NO_STDIO is defined.
+  Updated makefile.sgi to make shared library.
+  Added check of cygwin's ALL_STATIC in pngconf.h
+  Added "-nommx" parameter to contrib/gregbook/rpng2-win and rpng2-x demos.

 Send comments/corrections/commendations to
 png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu
--- a/87
+++ b/87
@@ -379,7 +379,7 @@ version 1.0.2a [December 30, 1998]
  Changed "ln -sf" to "ln -s -f" in makefile.s2x, makefile.lnx, and makefile.sco.
  Removed lines after Dynamic Dependencies" in makefile.aco .
  Revised makefile.dec to make a shared library (Jeremie Petit).
-  Removed trailing blanks from all files. 
+  Removed trailing blanks from all files.
 version 1.0.2a [January 6, 1999]
  Removed misplaced #endif and #ifdef PNG_NO_EXTERN near the end of png.h
  Added "if" tests to silence complaints about unused png_ptr in png.h and png.c
@@ -718,7 +718,7 @@ version 1.0.6i [May 2, 2000]
    the high-level interface, and unknown chunks support (all new in 1.0.6).
    This was necessary because of old applications that allocate the structs
    directly as authors were instructed to do in libpng-0.88 and earlier,
-    instead of using png_create_*(). 
+    instead of using png_create_*().
  Added modes PNG_CREATED_READ_STRUCT and PNG_CREATED_WRITE_STRUCT which
    can be used to detect codes that directly allocate the structs, and
    code to check these modes in png_read_init() and png_write_init() and
@@ -778,7 +778,8 @@ version 1.0.7beta16 [June 4, 2000]
  Added a check for overlength PLTE chunk in pngrutil.c.
  Added PNG_NO_POINTER_INDEXING macro to use array-indexing instead of pointer
    indexing in pngrutil.c and pngwutil.c to accommodate a buggy compiler.
-  Added a warning in png_decompress_chunk() when it runs out of data.
+  Added a warning in png_decompress_chunk() when it runs out of data, e.g.
+    when it tries to read an erroneous PhotoShop iCCP chunk.
  Added PNG_USE_DLL macro.
  Revised the copyright/disclaimer/license notice.
  Added contrib/msvctest directory
@@ -797,7 +798,6 @@ version 1.0.7rc2 [June 28, 2000]
  Fixed "DJBPP" typo in pnggccrd.c introduced in beta18.
 version 1.0.7 [July 1, 2000]
  Revised the definition of "trans_values" in libpng.3/libpng.txt
-version 1.0.8beta3 [July 11, 2000]
 version 1.0.8beta1 [July 8, 2000]
  Added png_free(png_ptr, key) two places in pngpread.c to stop memory leaks.
  Changed PNG_NO_STDIO to PNG_NO_CONSOLE_IO, several places in pngrutil.c and
@@ -814,6 +814,85 @@ version 1.0.8beta3 [July 11, 2000]
     for indexed-color input files to avoid potential double-freeing trans array
     under some unusual conditions; problem was introduced in version 1.0.6f.
  Further revisions to pngtest.c and files in the wince subdirectory.
+version 1.0.8beta4 [July 14, 2000]
+  Added the files pngbar.png and pngbar.jpg to the distribution.
+  Added makefile.cygwin, and cygwin support in pngconf.h
+  Added PNG_NO_ZALLOC_ZERO macro (makes png_zalloc skip zeroing memory)
+version 1.0.8rc1 [July 16, 2000]
+  Revised png_debug() macros and statements to eliminate compiler warnings.
+version 1.0.8 [July 24, 2000]
+  Added png_flush() in pngwrite.c, after png_write_IEND().
+  Updated makefile.hpux to build a shared library.
+version 1.0.9beta1 [November 10, 2000]
+  Fixed typo in scripts/makefile.hpux
+  Updated makevms.com in scripts and contrib/* and contrib/* (Martin Zinser)
+  Fixed seqence-point bug in contrib/pngminus/png2pnm (Martin Zinser)
+  Changed "cdrom.com" in documentation to "libpng.org"
+  Revised pnggccrd.c to get it all working, and updated makefile.gcmmx (Greg).
+  Changed type of "params" from voidp to png_voidp in png_read|write_png().
+  Make sure PNGAPI and PNG_IMPEXP are defined in pngconf.h.
+  Revised the 3 instances of WRITEFILE in pngtest.c.
+  Relocated "msvc" and "wince" project subdirectories into "dll" subdirectory.
+  Updated png.rc in dll/msvc project
+  Revised makefile.dec to define and use LIBPATH and INCPATH
+  Increased size of global png_libpng_ver[] array from 12 to 18 chars.
+  Made global png_libpng_ver[], png_sig[] and png_pass_*[] arrays const.
+  Removed duplicate png_crc_finish() from png_handle_bKGD() function.
+  Added a warning when application calls png_read_update_info() multiple times.
+  Revised makefile.cygwin
+  Fixed bugs in iCCP support in pngrutil.c and pngwutil.c.
+  Replaced png_set_empty_plte_permitted() with png_permit_mng_features().
+version 1.0.9beta2 [November 19, 2000]
+  Renamed the "dll" subdirectory "projects".
+  Added borland project files to "projects" subdirectory.
+  Set VS_FF_PRERELEASE and VS_FF_PATCHED flags in msvc/png.rc when appropriate.
+  Add error message in png_set_compression_buffer_size() when malloc fails.
+version 1.0.9beta3 [November 23, 2000]
+  Revised PNG_LIBPNG_BUILD_TYPE macro in png.h, used in the msvc project.
+  Removed the png_flush() in pngwrite.c that crashes some applications
+    that don't set png_output_flush_fn.
+  Added makefile.macosx and makefile.aix to scripts directory.
+version 1.0.9beta4 [December 1, 2000]
+  Change png_chunk_warning to png_warning in png_check_keyword().
+  Increased the first part of msg buffer from 16 to 18 in png_chunk_error().
+version 1.0.9beta5 [December 15, 2000]
+  Added support for filter method 64 (for PNG datastreams embedded in MNG).
+version 1.0.9beta6 [December 18, 2000]
+  Revised png_set_filter() to accept filter method 64 when appropriate.
+  Added new PNG_HAVE_PNG_SIGNATURE bit to png_ptr->mode and use it to
+    help prevent applications from using MNG features in PNG datastreams.
+  Added png_permit_mng_features() function.
+  Revised libpng.3/libpng.txt.  Changed "filter type" to "filter method".
+version 1.0.9rc1 [December 23, 2000]
+  Revised test for PNG_HAVE_PNG_SIGNATURE in pngrutil.c
+  Fixed error handling of unknown compression type in png_decompress_chunk().
+  In pngconf.h, define __cdecl when _MSC_VER is defined.
+version 1.0.9beta7 [December 28, 2000]
+  Changed PNG_TEXT_COMPRESSION_zTXt to PNG_COMPRESSION_TYPE_BASE several places.
+  Revised memory management in png_set_hIST and png_handle_hIST in a backward
+    compatible manner.  PLTE and tRNS were revised similarly.
+  Revised the iCCP chunk reader to ignore trailing garbage.
+version 1.0.9beta8 [January 12, 2001]
+  Moved pngasmrd.h into pngconf.h.
+  Improved handling of out-of-spec garbage iCCP chunks generated by PhotoShop.
+version 1.0.9beta9 [January 15, 2001]
+  Added png_set_invalid, png_permit_mng_features, and png_mmx_supported to
+    wince and msvc project module definition files.
+  Minor revision of makefile.cygwin.
+  Fixed bug with progressive reading of narrow interlaced images in pngpread.c
+version 1.0.9beta10 [January 16, 2001]
+  Do not typedef png_FILE_p in pngconf.h when PNG_NO_STDIO is defined.
+  Fixed "png_mmx_supported" typo in project definition files.
+version 1.0.9beta11 [January 19, 2001]
+  Updated makefile.sgi to make shared library.
+  Removed png_mmx_support() function and disabled PNG_MNG_FEATURES_SUPPORTED
+    by default, for the benefit of DLL forward compatibility.  These will
+    be re-enabled in version 1.2.0.
+version 1.0.9rc2 [January 22, 2001]
+  Revised cygwin support.
+version 1.0.9 [January 31, 2001]
+  Added check of cygwin's ALL_STATIC in pngconf.h
+  Added "-nommx" parameter to contrib/gregbook/rpng2-win and rpng2-x demos.

 Send comments/corrections/commendations to
 png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu
--- a/27
+++ b/27
@@ -1,5 +1,5 @@

-Installing libpng version 1.0.8beta3 - July 11, 2000
+Installing libpng version 1.0.9 - January 31, 2001

 Before installing libpng, you must first install zlib.  zlib
 can usually be found wherever you got libpng.  zlib can be
@@ -10,7 +10,7 @@ zlib.h and zconf.h include files that correspond to the
 version of zlib that's installed.

 You can rename the directories that you downloaded (they
-might be called "libpng-1.0.8beta3" or "lpng107" and "zlib-1.1.3"
+might be called "libpng-1.0.9" or "lpng109" and "zlib-1.1.3"
 or "zlib113") so that you have directories called "zlib" and "libpng".

 Your directory structure should look like this:
@@ -27,11 +27,13 @@ Your directory structure should look like this:
             pngminus
             pngsuite
             visupng
-          msvc
+          projects
+             borland
+             msvc
+             wince
          scripts
             makefile.*
          pngtest.png
-          wince
          etc.
      zlib
          README
@@ -51,28 +53,31 @@ instructions in the README* files.

 Else enter the zlib directory and follow the instructions in zlib/README,
 then come back here and choose the appropriate makefile.sys in the scripts
-directory.  
+directory.

 The files that are presently available in the scripts directory
 include

 makefile.std      =>  Generic UNIX makefile (cc, creates static libpng.a)
- makefile.linux    =>  Linux/ELF makefile (gcc, creates libpng.so.2.1.0.8beta3)
- makefile.gcmmx    =>  Linux/ELF makefile (gcc, creates libpng.so.2.1.0.8beta3,
+ makefile.linux    =>  Linux/ELF makefile (gcc, creates libpng.so.2.1.0.9)
+ makefile.gcmmx    =>  Linux/ELF makefile (gcc, creates libpng.so.2.1.0.9,
                       uses assembler code tuned for Intel MMX platform)
 makefile.gcc      =>  Generic makefile (gcc, creates static libpng.a)
 makefile.knr      =>  Archaic UNIX Makefile that converts files with
                       ansi2knr (Requires ansi2knr.c from
                       ftp://ftp.cs.wisc.edu/ghost)
+ makefile.aix      =>  AIX makefile
+ makefile.cygwin   =>  Cygwin/gcc makefile
 makefile.dec      =>  DEC Alpha UNIX makefile
 makefile.hpux     =>  HPUX (10.20 and 11.00) makefile
 makefile.ibmc     =>  IBM C/C++ version 3.x for Win32 and OS/2 (static)
 makefile.intel    =>  Intel C/C++ version 4.0 and later
 libpng.icc        =>  Project file for IBM VisualAge/C++ version 4.0 or later
+ makefile.macosx   =>  MACOS X Makefile
 makefile.sgi      =>  Silicon Graphics IRIX makefile (cc, creates static lib)
- makefile.sggcc    =>  Silicon Graphics (gcc, creates libpng.so.2.1.0.8beta3)
+ makefile.sggcc    =>  Silicon Graphics (gcc, creates libpng.so.2.1.0.9)
 makefile.sunos    =>  Sun makefile
- makefile.solaris  =>  Solaris 2.X makefile (gcc, creates libpng.so.2.1.0.8beta3)
+ makefile.solaris  =>  Solaris 2.X makefile (gcc, creates libpng.so.2.1.0.9)
 makefile.sco      =>  For SCO OSr5  ELF and Unixware 7 with Native cc
 makefile.mips     =>  MIPS makefile
 makefile.acorn    =>  Acorn makefile
@@ -125,5 +130,5 @@ put the library in its final resting place (if you want to
 do that, run "make install" in the zlib directory first if necessary).

 Further information can be found in the README and libpng.txt
-files, in the individual makefiles, in png.h, and the manual pages
-libpng.3 and png.5.
+files, in the individual makefiles, in png.h, in the README files in
+subdirectories of the LIB directory, and the manual pages libpng.3 and png.5.
--- a/81
+++ b/81
@@ -1,81 +1,4 @@

-Known bugs and suggested enhancements in libpng-1.0.7
-
-1. July 2, 2000 -- BUG -- pnggccrd.c
-
-   Some programs compiled with PNG_USE_PNGGCCRD crash in pnggccrd.c.
-   Also, pnggccrd.c will not compile under gcc-2.95-2.
-
-   STATUS: Under investigation.  Experts on MMX assembler code are
-   invited to help with the debugging.  Note that pngvcrd.c works fine.
-
-2. July 3, 2000 -- BUG -- MEMORY LEAK
-
-   There is a memory leak in pngpread.c; it doesn't free "key".
-
-   STATUS: Fixed in libpng-1.0.8beta1, by adding.
-
-      png_free(png_ptr, text_ptr);
-
-   after lines 1221 and 1038 in pngpread.c
-
-3. July 3, 2000 -- BUG -- PNG_EXPORT_VAR
-
-   The definition of PNG_EXPORT_VAR, in pngconf.h, should be
-   #  define PNG_EXPORT_VAR(type) extern PNG_IMPEXP type
-
-   STATUS: Fixed in libpng-1.0.8beta1.
-
-4. July 3, 2000 -- BUG -- PNG_NO_STDIO
-
-   Several places in pngrutil.c and pngwutil.c, there are printf statements
-   inside PNG_NO_STDIO blocks (should be PNG_NO_CONSOLE_IO)
-
-   STATUS: Fixed in libpng-1.0.8beta1.
-
-5. July 3, 2000 -- ENHANCEMENT -- WindowsCE support
-
-   Libpng-1.0.7 does not support WindowsCE.
-
-   STATUS:  Libpng-1.0.8 and libpng-2.0.0 will support WindowsCE.  A
-   new typedef, png_file_p, will be added which is normally FILE * but
-   will be HANDLE if libpng is being built for WindowsCE.  Other patches
-   required for WindowsCE support have been provided and will be applied.
-
-6. March 15, 1998 -- OPTIMIZATION -- Kevin Bracey
-
-   Loops need to be optimized everywhere
-
-   Make them count down instead of up -- Kevin Bracey
-
-   Optimizing compilers don't need this, and making
-   the change would be error prone -- Tom Lane, Glenn R-P
-
-   Question whether i-- or --i is better.
-
-   STATUS: Under investigation, postponed until after
-   libpng-1.1.0.  About 160 loops will be turned around
-   in libpng-2.0.x betaxx, for testing.
-
-7. July 4, 1998 -- ENHANCEMENT -- Glenn R-P
-
-   libpng-1.0.5 and earlier transform colors to gamma=1.0 space for
-   merging with background, and then back to the image's gamma.  The
-   bit_depth of the intermediate (gamma=1.0) representation is probably
-   not sufficient.  In the typical gamma=1/2.2 situation, the linear
-   pixels need about 4 more bits than the gamma-encoded ones, to avoid
-   loss of precision.  A similar situation exists with the rgb_to_gray
-   operation.
-
-   STATUS: under development.
-
-8. September 1999 -- ENHANCEMENT --
-
-   It should be possible to use libpng without floating-point aritmetic.
-
-   STATUS: Under investigation, implementation postponed until after
-   libpng-1.0.7.
-
-   Much of this was completed in libpng-1.0.6, but gamma compensation
-   is not yet done in fixed-point arithmetic.
+Known bugs in libpng-1.0.9

+None.
--- a/17
+++ b/17
@@ -1,11 +1,16 @@

+This copy of the libpng notices is provided for your convenience.  In case of
+any discrepancy between this copy and the notices in the file png.h that is
+included in the libpng distribution, the latter shall prevail.
+
 COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:

 If you modify libpng you may insert additional notices immediately following
 this sentence.

-libpng version 1.0.8beta3, July 11, 2000 is Copyright (c) 2000 Glenn Randers-Pehrson
-Distributed according to the same disclaimer and license as libpng-1.0.6
+libpng versions 1.0.7, July 1, 2000, through 1.0.9, January 31, 2001, are
+Copyright (c) 2000 Glenn Randers-Pehrson
+and are distributed according to the same disclaimer and license as libpng-1.0.6
 with the following individuals added to the list of Contributing Authors

   Simon-Pierre Cadieux
@@ -22,8 +27,8 @@ and with the following additions to the disclaimer:
   the user.

 libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
-Copyright (c) 1998, 1999 Glenn Randers-Pehrson
-Distributed according to the same disclaimer and license as libpng-0.96,
+Copyright (c) 1998, 1999 Glenn Randers-Pehrson, and are
+distributed according to the same disclaimer and license as libpng-0.96,
 with the following individuals added to the list of Contributing Authors:

   Tom Lane
@@ -87,11 +92,11 @@ boxes and the like:
   printf("%s",png_get_copyright(NULL));

 Also, the PNG logo (in PNG format, of course) is supplied in the
-file "pngnow.png".
+files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).

 Libpng is OSI Certified Open Source Software.  OSI Certified Open Source is a
 certification mark of the Open Source Initiative.

 Glenn Randers-Pehrson
 randeg@alum.rpi.edu
-July 11, 2000
+January 31, 2001
--- a/27
+++ b/27
@@ -1,4 +1,4 @@
-README for libpng 1.0.8beta3 - July 11, 2000 (shared library 2.1)
+README for libpng 1.0.9 - January 31, 2001 (shared library 2.1)
 See the note about version numbers near the top of png.h

 See INSTALL for instructions on how to install libpng.
@@ -148,7 +148,8 @@ Files in this distribution:
      pngerror.c    =>  Error/warning message I/O functions
      pngget.c      =>  Functions for retrieving info from struct
      pngmem.c      =>  Memory handling functions
-      pngnow.png    =>  PNG logo
+      pngbar.png    =>  PNG logo, 88x31
+      pngnow.png    =>  PNG logo, 98x31
      pngpread.c    =>  Progressive reading functions
      pngread.c     =>  Read data/helper high-level functions
      pngrio.c      =>  Lowest-level data read I/O functions
@@ -170,30 +171,38 @@ Files in this distribution:
       pngminus     =>  Simple pnm2png and png2pnm programs
       pngsuite     =>  Test images
       visupng      =>  Contains a MSVC workspace for VisualPng
-      msvc          =>  Contains a Microsoft Visual C++ (MSVC) workspace
-                        for building libpng and zlib
+      projects      =>  Contains project files and workspaces for building DLL
+       borland          =>  Contains a Borland workspace for building libpng
+                            and zlib
+       msvc             =>  Contains a Microsoft Visual C++ (MSVC) workspace
+                            for building libpng and zlib
+       wince            =>  Contains a Microsoft Visual C++ (Windows CD Toolkit)
+                            workspace for building libpng and zlib on WindowsCE
      scripts       =>  Directory containing scripts for building libpng:
       descrip.mms      =>  VMS makefile for MMS or MMK
       makefile.std     =>  Generic UNIX makefile (cc, creates static libpng.a)
       makefile.linux   =>  Linux/ELF makefile
-                            (gcc, creates libpng.so.2.1.0.8beta3)
+                            (gcc, creates libpng.so.2.1.0.9)
       makefile.gcmmx   =>  Linux/ELF makefile (gcc, creates
-                            libpng.so.2.1.0.8beta3, uses assembler code
+                            libpng.so.2.1.0.9, uses assembler code
                            tuned for Intel MMX platform)
       makefile.gcc     =>  Generic makefile (gcc, creates static libpng.a)
       makefile.knr     =>  Archaic UNIX Makefile that converts files with
                            ansi2knr (Requires ansi2knr.c from
                            ftp://ftp.cs.wisc.edu/ghost)
+       makefile.aix     =>  AIX makefile
+       makefile.cygwin  =>  Cygwin/gcc makefile
       makefile.dec     =>  DEC Alpha UNIX makefile
       makefile.hpux    =>  HPUX (10.20 and 11.00) makefile
       makefile.ibmc    =>  IBM C/C++ version 3.x for Win32 and OS/2 (static)
       makefile.intel   =>  Intel C/C++ version 4.0 and later
       libpng.icc       =>  Project file, IBM VisualAge/C++ 4.0 or later
+       makefile.macosx  =>  MACOS X Makefile
       makefile.sgi     =>  Silicon Graphics IRIX (cc, creates static lib)
-       makefile.sggcc   =>  Silicon Graphics (gcc, creates libpng.so.2.1.0.8beta3)
+       makefile.sggcc   =>  Silicon Graphics (gcc, creates libpng.so.2.1.0.9)
       makefile.sunos   =>  Sun makefile
       makefile.solaris =>  Solaris 2.X makefile
-                            (gcc, creates libpng.so.2.1.0.8beta3)
+                            (gcc, creates libpng.so.2.1.0.9)
       makefile.sco     =>  For SCO OSr5  ELF and Unixware 7 with Native cc
       makefile.mips    =>  MIPS makefile
       makefile.acorn   =>  Acorn makefile
@@ -220,8 +229,6 @@ Files in this distribution:
       makevms.com      =>  VMS build script
       pngdef.pas       =>  Defines for a png32bd.dll with Borland C++ 4.5
       SCOPTIONS.ppc    =>  Used with smakefile.ppc
-      wince         =>  Contains a Microsoft Visual C++ (Windows CD Toolkit)
-                        workspace for building libpng and zlib on WindowsCE

 Good luck, and happy coding.

--- a/5
+++ b/5
@@ -17,3 +17,8 @@ Better filter selection
   (counting huffman bits/precompression?  filter inertia?  filter costs?).
 Histogram creation.
 Text conversion between different code pages (Latin-1 -> Mac and DOS).
+Should we always malloc 2^bit_depth PLTE/tRNS/hIST entries for safety?
+Build gamma tables using fixed point (and do away with floating point entirely).
+Use greater precision when changing to linear gamma for compositing against
+  background and doing rgb-to-gray transformation.
+Investigate pre-incremented loop counters and other loop constructions.
--- a/4
+++ b/4
@@ -1,13 +1,13 @@
   Y2K compliance in libpng:
   =========================

-      July 11, 2000
+      January 31, 2001

      Since the PNG Development group is an ad-hoc body, we can't make
      an official declaration.

      This is your unofficial assurance that libpng from version 0.71 and
-      upward through 1.0.8beta3 are Y2K compliant.  It is my belief that earlier
+      upward through 1.0.9 are Y2K compliant.  It is my belief that earlier
      versions were also Y2K compliant.

      Libpng only has three year fields.  One is a 2-byte unsigned integer
--- a/2
+++ b/2
@@ -1,5 +1,5 @@
 echo "
-  There is no \"configure\" script for Libpng-1.0.8beta3.  Instead, please
+  There is no \"configure\" script for Libpng-1.0.9.  Instead, please
  copy the appropriate makefile for your system from the \"scripts\"
  directory.  Read the INSTALL file for more details.
 "
--- a/contrib/gregbook/Makefile.sgi
+++ b/contrib/gregbook/Makefile.sgi
@@ -0,0 +1,102 @@
+# Sample makefile for rpng-x / rpng2-x / wpng for SGI using cc and make.
+# Greg Roelofs
+# Last modified:  16 January 1000
+#
+#	The programs built by this makefile are described in the book,
+#	"PNG:  The Definitive Guide," by Greg Roelofs (O'Reilly and
+#	Associates, 1999).  Go buy a copy, eh?  Buy some for friends
+#	and family, too.  (Not that this is a blatant plug or anything.)
+#
+# Invoke this makefile from a shell prompt in the usual way; for example:
+#
+#	make -f Makefile.sgi
+#
+# This makefile assumes libpng and zlib have already been built or downloaded
+# and are both installed in /usr/local/{include,lib} (as indicated by the
+# PNG* and Z* macros below).  Edit as appropriate--choose only ONE each of
+# the PNGINC, PNGLIB, ZINC and ZLIB lines.
+#
+# This makefile builds dynamically linked executables (against libpng and zlib,
+# that is), but that can be changed by uncommenting the appropriate PNGLIB and
+# ZLIB lines.
+
+
+# macros --------------------------------------------------------------------
+
+PNGINC = -I/usr/local/include
+PNGLIB = -L/usr/local/lib -lpng	# dynamically linked against libpng
+#PNGLIB = /usr/local/lib/libpng.a	# statically linked against libpng
+# or:
+#PNGINC = -I../..
+#PNGLIB = -L../.. -lpng
+#PNGLIB = ../../libpng.a
+
+ZINC = -I/usr/local/include
+ZLIB = -L/usr/local/lib -lz		# dynamically linked against zlib
+#ZLIB = /usr/local/lib/libz.a		# statically linked against zlib
+#ZINC = -I../zlib
+#ZLIB = -L../zlib -lz
+#ZLIB = ../../../zlib/libz.a
+
+XINC = -I/usr/include/X11		# old-style, stock X distributions
+XLIB = -L/usr/lib/X11 -lX11
+#XINC = -I/usr/openwin/include    	# Sun workstations (OpenWindows)
+#XLIB = -L/usr/openwin/lib -lX11
+#XINC = -I/usr/X11R6/include		# new X distributions (XFree86, etc.)
+#XLIB = -L/usr/X11R6/lib -lX11
+
+INCS = $(PNGINC) $(ZINC) $(XINC)
+RLIBS = $(PNGLIB) $(ZLIB) $(XLIB) -lm
+WLIBS = $(PNGLIB) $(ZLIB)
+
+CC = cc
+LD = cc
+RM = rm -f
+CFLAGS = -O -fullwarn $(INCS)
+LDFLAGS =
+O = .o
+E =
+
+RPNG  = rpng-x
+RPNG2 = rpng2-x
+WPNG  = wpng
+
+ROBJS  = $(RPNG)$(O) readpng$(O)
+ROBJS2 = $(RPNG2)$(O) readpng2$(O)
+WOBJS  = $(WPNG)$(O) writepng$(O)
+
+EXES = $(RPNG)$(E) $(RPNG2)$(E) $(WPNG)$(E)
+
+
+# implicit make rules -------------------------------------------------------
+
+.c$(O):
+	$(CC) -c $(CFLAGS) $<
+
+
+# dependencies --------------------------------------------------------------
+
+all:  $(EXES)
+
+$(RPNG)$(E): $(ROBJS)
+	$(LD) $(LDFLAGS) -o $@ $(ROBJS) $(RLIBS)
+
+$(RPNG2)$(E): $(ROBJS2)
+	$(LD) $(LDFLAGS) -o $@ $(ROBJS2) $(RLIBS)
+
+$(WPNG)$(E): $(WOBJS)
+	$(LD) $(LDFLAGS) -o $@ $(WOBJS) $(WLIBS)
+
+$(RPNG)$(O):	$(RPNG).c readpng.h
+$(RPNG2)$(O):	$(RPNG2).c readpng2.h
+$(WPNG)$(O):	$(WPNG).c writepng.h
+
+readpng$(O):	readpng.c readpng.h
+readpng2$(O):	readpng2.c readpng2.h
+writepng$(O):	writepng.c writepng.h
+
+
+# maintenance ---------------------------------------------------------------
+
+clean:
+	$(RM) $(EXES) $(ROBJS) $(ROBJS2) $(WOBJS)
--- a/contrib/gregbook/makevms.com
+++ b/contrib/gregbook/makevms.com
@@ -7,12 +7,25 @@ $!
 $!
 $!    Set locations where zlib and libpng sources live.
 $!
-$ zpath = "[-.zlib]"
-$ pngpath = "[-.libpng]"
+$ zpath   = ""
+$ pngpath = ""
+$ if f$search("[-.zlib]zlib.h").nes."" then zpath = "[-.zlib]"
+$ if f$search("[-.libpng]png.h").nes."" then pngpath = "[-.libpng]"
 $!
-$! USE THESE INSTEAD if building from libpng's [.contrib.gregbook] directory:
-$! zpath = "[---.zlib]"
-$! pngpath = "[--]"
+$ if f$search("[---.zlib]zlib.h").nes."" then zpath = "[---.zlib]"
+$ if f$search("[--]png.h").nes."" then pngpath = "[--]"
+$!
+$ if zpath .eqs. ""
+$ then
+$   write sys$output "Zlib include not found. Exiting..."
+$   exit 2
+$ endif 
+$!
+$ if pngpath .eqs. ""
+$ then
+$   write sys$output "Libpng include not found. Exiting..."
+$   exit 2
+$ endif 
 $!
 $!    Look for the compiler used.
 $!
--- a/contrib/gregbook/readpng2.c
+++ b/contrib/gregbook/readpng2.c
@@ -4,7 +4,7 @@

  ---------------------------------------------------------------------------

-      Copyright (c) 1998-2000 Greg Roelofs.  All rights reserved.
+      Copyright (c) 1998-2001 Greg Roelofs.  All rights reserved.

      This software is provided "as is," without warranty of any kind,
      express or implied.  In no event shall the author or contributors
@@ -51,6 +51,7 @@ void readpng2_version_info(void)
 {
    fprintf(stderr, "   Compiled with libpng %s; using libpng %s.\n",
      PNG_LIBPNG_VER_STRING, png_libpng_ver);
+
    fprintf(stderr, "   Compiled with zlib %s; using zlib %s.\n",
      ZLIB_VERSION, zlib_version);
 }
@@ -110,7 +111,6 @@ int readpng2_init(mainprog_info *mainprog_ptr)
    png_set_progressive_read_fn(png_ptr, mainprog_ptr,
      readpng2_info_callback, readpng2_row_callback, readpng2_end_callback);

-
    /* make sure we save our pointers for use in readpng2_decode_data() */

    mainprog_ptr->png_ptr = png_ptr;
--- a/contrib/gregbook/readpng2.h
+++ b/contrib/gregbook/readpng2.h
@@ -4,7 +4,7 @@

  ---------------------------------------------------------------------------

-      Copyright (c) 1998-2000 Greg Roelofs.  All rights reserved.
+      Copyright (c) 1998-2001 Greg Roelofs.  All rights reserved.

      This software is provided "as is," without warranty of any kind,
      express or implied.  In no event shall the author or contributors
@@ -66,6 +66,11 @@ typedef struct _mainprog_info {
    int rowbytes;
    int channels;
    int need_bgcolor;
+#if (defined(__i386__) || defined(_M_IX86))
+    int nommxfilters;
+    int nommxcombine;
+    int nommxinterlace;
+#endif
    int done;
    uch bg_red;
    uch bg_green;
--- a/contrib/gregbook/rpng2-win.c
+++ b/contrib/gregbook/rpng2-win.c
@@ -11,7 +11,6 @@
   Meulen for the "diamond" and "radial waves" patterns, respectively.

   to do:
-    - stdout/stderr don't work!  need message window (maybe scrollable?)
    - handle quoted command-line args (especially filenames with spaces)
    - finish resizable checkerboard-gradient (sizes 4-128?)
    - use %.1023s to simplify truncation of title-bar string?
@@ -25,10 +24,12 @@
    - 1.03:  modified to allow abbreviated options
    - 1.04:  removed bogus extra argument from usage fprintf() [Glenn R-P?];
              fixed command-line parsing bug
+    - 1.10:  enabled "message window" (console), thanks to David Geldreich
+    - 1.20:  added runtime MMX-enabling/disabling and new -mmx* options

  ---------------------------------------------------------------------------

-      Copyright (c) 1998-2000 Greg Roelofs.  All rights reserved.
+      Copyright (c) 1998-2001 Greg Roelofs.  All rights reserved.

      This software is provided "as is," without warranty of any kind,
      express or implied.  In no event shall the author or contributors
@@ -55,7 +56,7 @@

 #define PROGNAME  "rpng2-win"
 #define LONGNAME  "Progressive PNG Viewer for Windows"
-#define VERSION   "1.04 of 19 March 2000"
+#define VERSION   "1.20 of 29 January 2001"

 #include <stdio.h>
 #include <stdlib.h>
@@ -64,6 +65,7 @@
 #include <time.h>
 #include <math.h>      /* only for PvdM background code */
 #include <windows.h>
+#include <conio.h>     /* only for _getch() */

 /* all for PvdM background code: */
 #ifndef PI
@@ -239,6 +241,16 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
    memset(&rpng2_info, 0, sizeof(mainprog_info));


+    /* Next reenable console output, which normally goes to the bit bucket
+     * for windowed apps.  Closing the console window will terminate the
+     * app.  Thanks to David.Geldreich@realviz.com for supplying the magical
+     * incantation. */
+
+    AllocConsole();
+    freopen("CONOUT$", "a", stderr);
+    freopen("CONOUT$", "a", stdout);
+
+
    /* Set the default value for our display-system exponent, i.e., the
     * product of the CRT exponent and the exponent corresponding to
     * the frame-buffer's lookup table (LUT), if any.  This is not an
@@ -354,6 +366,18 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
            }
        } else if (!strncmp(*argv, "-timing", 2)) {
            timing = TRUE;
+#if (defined(__i386__) || defined(_M_IX86))
+        } else if (!strncmp(*argv, "-nommxfilters", 7)) {
+            rpng2_info.nommxfilters = TRUE;
+        } else if (!strncmp(*argv, "-nommxcombine", 7)) {
+            rpng2_info.nommxcombine = TRUE;
+        } else if (!strncmp(*argv, "-nommxinterlace", 7)) {
+            rpng2_info.nommxinterlace = TRUE;
+        } else if (!strcmp(*argv, "-nommx")) {
+            rpng2_info.nommxfilters = TRUE;
+            rpng2_info.nommxcombine = TRUE;
+            rpng2_info.nommxinterlace = TRUE;
+#endif
        } else {
            if (**argv != '-') {
                filename = *argv;
@@ -401,25 +425,47 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)
    /* usage screen */

    if (error) {
-        fprintf(stderr, "\n%s %s:  %s\n", PROGNAME, VERSION, appname);
+        int ch;
+
+        fprintf(stderr, "\n%s %s:  %s\n\n", PROGNAME, VERSION, appname);
        readpng2_version_info();
        fprintf(stderr, "\n"
-          "Usage:  %s [-gamma exp] [-bgcolor bg | -bgpat pat] [-timing]"
-          " file.png\n\n"
+          "Usage:  %s [-gamma exp] [-bgcolor bg | -bgpat pat] [-timing]\n"
+#if (defined(__i386__) || defined(_M_IX86))
+          "        %*s [[-nommxfilters] [-nommxcombine] [-nommxinterlace] | -nommx]\n"
+#endif
+          "        %*s file.png\n\n"
          "    exp \ttransfer-function exponent (``gamma'') of the display\n"
          "\t\t  system in floating-point format (e.g., ``%.1f''); equal\n"
          "\t\t  to the product of the lookup-table exponent (varies)\n"
          "\t\t  and the CRT exponent (usually 2.2); must be positive\n"
          "    bg  \tdesired background color in 7-character hex RGB format\n"
          "\t\t  (e.g., ``#ff7700'' for orange:  same as HTML colors);\n"
-          "\t\t  used with transparent images; overrides -bgpat\n"
+          "\t\t  used with transparent images; overrides -bgpat option\n"
          "    pat \tdesired background pattern number (1-%d); used with\n"
-          "\t\t  transparent images; overrides -bgcolor\n"
+          "\t\t  transparent images; overrides -bgcolor option\n"
          "    -timing\tenables delay for every block read, to simulate modem\n"
          "\t\t  download of image (~36 Kbps)\n"
+#if (defined(__i386__) || defined(_M_IX86))
+          "    -nommx*\tdisable optimized MMX routines for decoding row filters,\n"
+          "\t\t  combining rows, and expanding interlacing, respectively\n"
+#endif
          "\nPress Q, Esc or mouse button 1 after image is displayed to quit.\n"
-          "\n", PROGNAME, default_display_exponent, num_bgpat);
+          "Press Q or Esc to quit this usage screen.\n"
+          "\n", PROGNAME,
+#if (defined(__i386__) || defined(_M_IX86))
+          strlen(PROGNAME), " ",
+#endif
+          strlen(PROGNAME), " ", default_display_exponent, num_bgpat);
+        do
+            ch = _getch();
+        while (ch != 'q' && ch != 'Q' && ch != 0x1B);
        exit(1);
+    } else {
+        fprintf(stderr, "\n%s %s:  %s\n", PROGNAME, VERSION, appname);
+        fprintf(stderr,
+          "\n   [console window:  closing this window will terminate %s]\n\n",
+          PROGNAME);
    }


--- a/contrib/gregbook/rpng2-x.c
+++ b/contrib/gregbook/rpng2-x.c
@@ -25,10 +25,11 @@
    - 1.10:  added support for non-default visuals; fixed X pixel-conversion
    - 1.11:  added -usleep option for demos; fixed command-line parsing bug
    - 1.12:  added -pause option for demos and testing
+    - 1.20:  added runtime MMX-enabling/disabling and new -mmx* options

  ---------------------------------------------------------------------------

-      Copyright (c) 1998-2000 Greg Roelofs.  All rights reserved.
+      Copyright (c) 1998-2001 Greg Roelofs.  All rights reserved.

      This software is provided "as is," without warranty of any kind,
      express or implied.  In no event shall the author or contributors
@@ -55,7 +56,7 @@

 #define PROGNAME  "rpng2-x"
 #define LONGNAME  "Progressive PNG Viewer for X"
-#define VERSION   "1.12 of 19 March 2000"
+#define VERSION   "1.20 of 29 January 2001"

 #include <stdio.h>
 #include <stdlib.h>
@@ -359,6 +360,18 @@ int main(int argc, char **argv)
            pause_after_pass = TRUE;
        } else if (!strncmp(*argv, "-timing", 2)) {
            timing = TRUE;
+#if (defined(__i386__) || defined(_M_IX86))
+        } else if (!strncmp(*argv, "-nommxfilters", 7)) {
+            rpng2_info.nommxfilters = TRUE;
+        } else if (!strncmp(*argv, "-nommxcombine", 7)) {
+            rpng2_info.nommxcombine = TRUE;
+        } else if (!strncmp(*argv, "-nommxinterlace", 7)) {
+            rpng2_info.nommxinterlace = TRUE;
+        } else if (!strcmp(*argv, "-nommx")) {
+            rpng2_info.nommxfilters = TRUE;
+            rpng2_info.nommxcombine = TRUE;
+            rpng2_info.nommxinterlace = TRUE;
+#endif
        } else {
            if (**argv != '-') {
                filename = *argv;
@@ -414,10 +427,13 @@ int main(int argc, char **argv)
    /* usage screen */

    if (error) {
-        fprintf(stderr, "\n%s %s:  %s\n", PROGNAME, VERSION, appname);
+        fprintf(stderr, "\n%s %s:  %s\n\n", PROGNAME, VERSION, appname);
        readpng2_version_info();
        fprintf(stderr, "\n"
          "Usage:  %s [-display xdpy] [-gamma exp] [-bgcolor bg | -bgpat pat]\n"
+#if (defined(__i386__) || defined(_M_IX86))
+          "        %*s [[-nommxfilters] [-nommxcombine] [-nommxinterlace] | -nommx]\n"
+#endif
          "        %*s [-usleep dur | -timing] [-pause] file.png\n\n"
          "    xdpy\tname of the target X display (e.g., ``hostname:0'')\n"
          "    exp \ttransfer-function exponent (``gamma'') of the display\n"
@@ -429,6 +445,10 @@ int main(int argc, char **argv)
          "\t\t  used with transparent images; overrides -bgpat\n"
          "    pat \tdesired background pattern number (1-%d); used with\n"
          "\t\t  transparent images; overrides -bgcolor\n"
+#if (defined(__i386__) || defined(_M_IX86))
+          "    -nommx*\tdisable optimized MMX routines for decoding row filters,\n"
+          "\t\t  combining rows, and expanding interlacing, respectively\n"
+#endif
          "    dur \tduration in microseconds to wait after displaying each\n"
          "\t\t  row (for demo purposes)\n"
          "    -timing\tenables delay for every block read, to simulate modem\n"
@@ -436,8 +456,11 @@ int main(int argc, char **argv)
          "    -pause\tpauses after displaying each pass until key pressed\n"
          "\nPress Q, Esc or mouse button 1 (within image window, after image\n"
          "is displayed) to quit.\n"
-          "\n", PROGNAME, strlen(PROGNAME), " ", default_display_exponent,
-          num_bgpat);
+          "\n", PROGNAME,
+#if (defined(__i386__) || defined(_M_IX86))
+          strlen(PROGNAME), " ",
+#endif
+          strlen(PROGNAME), " ", default_display_exponent, num_bgpat);
        exit(1);
    }

--- a/contrib/msvctest/README.txt
+++ b/contrib/msvctest/README.txt
@@ -1,8 +1,8 @@
 Microsoft Developer Studio Build File, Format Version 6.00 for
 msvctest

-Assumes that libpng DLLs and LIBs are in ..\..\msvc\win32\libpng
-Assumes that zlib DLLs and LIBs are in ..\..\msvc\win32\zlib
+Assumes that libpng DLLs and LIBs are in ..\..\projects\msvc\win32\libpng
+Assumes that zlib DLLs and LIBs are in ..\..\projects\msvc\win32\zlib

 To build:

--- a/contrib/msvctest/msvctest.dsp
+++ b/contrib/msvctest/msvctest.dsp
@@ -54,12 +54,12 @@ BSC32=bscmake.exe
 # ADD BSC32 /nologo
 LINK32=link.exe
 # ADD BASE LINK32 /nologo /subsystem:console /machine:I386
-# ADD LINK32 ..\..\msvc\win32\libpng\dll\libpng1.lib /nologo /subsystem:console /machine:I386
+# ADD LINK32 ..\..\projects\msvc\win32\libpng\dll\libpng1.lib /nologo /subsystem:console /machine:I386
 # Begin Special Build Tool
 OutDir=.\dll
 SOURCE="$(InputPath)"
 PostBuild_Desc=[Run Test]
-PostBuild_Cmds=set path=..\..\msvc\win32\libpng\dll;..\..\msvc\win32\zlib\dll;	$(outdir)\msvctest.exe ..\..\pngtest.png
+PostBuild_Cmds=set path=..\..\projects\msvc\win32\libpng\dll;..\..\projects\msvc\win32\zlib\dll;	$(outdir)\msvctest.exe ..\..\pngtest.png
 # End Special Build Tool

 !ELSEIF  "$(CFG)" == "msvctest - Win32 Debug DLL"
@@ -84,12 +84,12 @@ BSC32=bscmake.exe
 # ADD BSC32 /nologo
 LINK32=link.exe
 # ADD BASE LINK32 /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
-# ADD LINK32 ..\..\msvc\win32\libpng\dll_dbg\libpng1d.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
+# ADD LINK32 ..\..\projects\msvc\win32\libpng\dll_dbg\libpng1d.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
 # Begin Special Build Tool
 OutDir=.\dll_dbg
 SOURCE="$(InputPath)"
 PostBuild_Desc=[Run Test]
-PostBuild_Cmds=set path=..\..\msvc\win32\libpng\dll_dbg;..\..\msvc\win32\zlib\dll_dbg;	$(outdir)\msvctest.exe ..\..\pngtest.png
+PostBuild_Cmds=set path=..\..\projects\msvc\win32\libpng\dll_dbg;..\..\projects\msvc\win32\zlib\dll_dbg;	$(outdir)\msvctest.exe ..\..\pngtest.png
 # End Special Build Tool

 !ELSEIF  "$(CFG)" == "msvctest - Win32 ASM DLL"
@@ -114,12 +114,12 @@ BSC32=bscmake.exe
 # ADD BSC32 /nologo
 LINK32=link.exe
 # ADD BASE LINK32 /nologo /subsystem:console /machine:I386
-# ADD LINK32 ..\..\msvc\win32\libpng\dll_asm\libpng1a.lib /nologo /subsystem:console /machine:I386
+# ADD LINK32 ..\..\projects\msvc\win32\libpng\dll_asm\libpng1a.lib /nologo /subsystem:console /machine:I386
 # Begin Special Build Tool
 OutDir=.\dll_asm
 SOURCE="$(InputPath)"
 PostBuild_Desc=[Run Test]
-PostBuild_Cmds=set path=..\..\msvc\win32\libpng\dll_asm;..\..\msvc\win32\zlib\dll_asm;	$(outdir)\msvctest.exe ..\..\pngtest.png
+PostBuild_Cmds=set path=..\..\projects\msvc\win32\libpng\dll_asm;..\..\projects\msvc\win32\zlib\dll_asm;	$(outdir)\msvctest.exe ..\..\pngtest.png
 # End Special Build Tool

 !ELSEIF  "$(CFG)" == "msvctest - Win32 Debug ASM DLL"
@@ -144,12 +144,12 @@ BSC32=bscmake.exe
 # ADD BSC32 /nologo
 LINK32=link.exe
 # ADD BASE LINK32 /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
-# ADD LINK32 ..\..\msvc\win32\libpng\dll_dbga\libpng1b.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
+# ADD LINK32 ..\..\projects\msvc\win32\libpng\dll_dbga\libpng1b.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
 # Begin Special Build Tool
 OutDir=.\dll_dbga
 SOURCE="$(InputPath)"
 PostBuild_Desc=[Run Test]
-PostBuild_Cmds=set path=..\..\msvc\win32\libpng\dll_dbga;..\..\msvc\win32\zlib\dll_dbga;	$(outdir)\msvctest.exe ..\..\pngtest.png
+PostBuild_Cmds=set path=..\..\projects\msvc\win32\libpng\dll_dbga;..\..\projects\msvc\win32\zlib\dll_dbga;	$(outdir)\msvctest.exe ..\..\pngtest.png
 # End Special Build Tool

 !ELSEIF  "$(CFG)" == "msvctest - Win32 LIB"
@@ -174,7 +174,7 @@ BSC32=bscmake.exe
 # ADD BSC32 /nologo
 LINK32=link.exe
 # ADD BASE LINK32 /nologo /subsystem:console /machine:I386
-# ADD LINK32 ..\..\msvc\win32\libpng\lib\libpng.lib /nologo /subsystem:console /machine:I386
+# ADD LINK32 ..\..\projects\msvc\win32\libpng\lib\libpng.lib /nologo /subsystem:console /machine:I386
 # Begin Special Build Tool
 OutDir=.\lib
 SOURCE="$(InputPath)"
@@ -204,7 +204,7 @@ BSC32=bscmake.exe
 # ADD BSC32 /nologo
 LINK32=link.exe
 # ADD BASE LINK32 /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
-# ADD LINK32 ..\..\msvc\win32\libpng\lib_dbg\libpng.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
+# ADD LINK32 ..\..\projects\msvc\win32\libpng\lib_dbg\libpng.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
 # Begin Special Build Tool
 OutDir=.\lib_dbg
 SOURCE="$(InputPath)"
--- a/contrib/pngminus/makevms.com
+++ b/contrib/pngminus/makevms.com
@@ -45,9 +45,9 @@ $   call make pnm2png.exe -
 $   write sys$output "Building png2pnm..."
 $   CALL MAKE png2pnm.OBJ "cc ''CCOPT' png2pnm" -
 	png2pnm.c
-$   call make pnm2png.exe -
-	"LINK pnm2png,lib.opt/opt" -
-	pnm2png.obj
+$   call make png2pnm.exe -
+	"LINK png2pnm,lib.opt/opt" -
+	png2pnm.obj
 $ exit
 $!
 $!
--- a/contrib/pngminus/png2pnm.c
+++ b/contrib/pngminus/png2pnm.c
@@ -204,6 +204,7 @@ BOOL png2pnm (FILE *png_file, FILE *pnm_file, FILE *alpha_file, BOOL raw, BOOL a
  int           row, col;
  int           ret;
  int           i;
+  long          dep_16;

  /* read and check signature in PNG file */
  ret = fread (buf, 1, 8, png_file);
@@ -379,8 +380,10 @@ BOOL png2pnm (FILE *png_file, FILE *pnm_file, FILE *alpha_file, BOOL raw, BOOL a
        if (raw)
          fputc ((int) *pix_ptr++ , pnm_file);
        else
-          if (bit_depth == 16)
-            fprintf (pnm_file, "%ld ", ((long) *pix_ptr++ << 8) + (long) *pix_ptr++);
+          if (bit_depth == 16){
+	    dep_16 = (long) *pix_ptr++;
+            fprintf (pnm_file, "%ld ", (dep_16 << 8) + ((long) *pix_ptr++));
+          }
          else
            fprintf (pnm_file, "%ld ", (long) *pix_ptr++);
      }
@@ -397,8 +400,10 @@ BOOL png2pnm (FILE *png_file, FILE *pnm_file, FILE *alpha_file, BOOL raw, BOOL a
          if (raw)
            fputc ((int) *pix_ptr++ , alpha_file);
          else
-            if (bit_depth == 16)
-              fprintf (alpha_file, "%ld ", ((long) *pix_ptr++ << 8) + (long) *pix_ptr++);
+            if (bit_depth == 16){
+	      dep_16 = (long) *pix_ptr++;
+              fprintf (alpha_file, "%ld ", (dep_16 << 8) + (long) *pix_ptr++);
+	    }  
            else
              fprintf (alpha_file, "%ld ", (long) *pix_ptr++);
        }
--- a/contrib/visupng/README.txt
+++ b/contrib/visupng/README.txt
@@ -13,8 +13,8 @@ binaries, go to "http://www.schaik.com/png/visualpng.html".

 Assumes that

-   libpng DLLs and LIBs are in ..\..\msvc\win32\libpng
-   zlib DLLs and LIBs are in   ..\..\msvc\win32\zlib
+   libpng DLLs and LIBs are in ..\..\projects\msvc\win32\libpng
+   zlib DLLs and LIBs are in   ..\..\projects\msvc\win32\zlib
   libpng header files are in  ..\..\..\libpng
   zlib header files are in    ..\..\..\zlib
   the pngsuite images are in  ..\pngsuite
--- a/contrib/visupng/VisualPng.dsp
+++ b/contrib/visupng/VisualPng.dsp
@@ -60,11 +60,11 @@ BSC32=bscmake.exe
 # ADD BSC32 /nologo
 LINK32=link.exe
 # ADD BASE LINK32 libpng1.lib zlibd.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /machine:I386 /libpath:"libpng" /libpath:"zlib"
-# ADD LINK32 libpng1.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /machine:I386 /libpath:"..\..\msvc\win32\libpng\dll"
+# ADD LINK32 libpng1.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /machine:I386 /libpath:"..\..\projects\msvc\win32\libpng\dll"
 # Begin Special Build Tool
 OutDir=.\dll
 SOURCE="$(InputPath)"
-PostBuild_Cmds=set path=..\..\msvc\win32\libpng\dll;..\..\msvc\win32\zlib\dll;	$(outdir)\VisualPng.exe ..\..\contrib\pngsuite\basn6a16.png
+PostBuild_Cmds=set path=..\..\projects\msvc\win32\libpng\dll;..\..\projects\msvc\win32\zlib\dll;	$(outdir)\VisualPng.exe ..\..\contrib\pngsuite\basn6a16.png
 # End Special Build Tool

 !ELSEIF  "$(CFG)" == "VisualPng - Win32 Debug DLL"
@@ -94,12 +94,12 @@ BSC32=bscmake.exe
 LINK32=link.exe
 # ADD BASE LINK32 libpng1.lib zlibd.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /nodefaultlib:"libc" /pdbtype:sept /libpath:"libpng" /libpath:"zlib"
 # SUBTRACT BASE LINK32 /nodefaultlib
-# ADD LINK32 libpng1d.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /nodefaultlib:"libc" /pdbtype:sept /libpath:"..\..\msvc\win32\libpng\dll_dbg"
+# ADD LINK32 libpng1d.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /nodefaultlib:"libc" /pdbtype:sept /libpath:"..\..\projects\msvc\win32\libpng\dll_dbg"
 # SUBTRACT LINK32 /nodefaultlib
 # Begin Special Build Tool
 OutDir=.\dll_dbg
 SOURCE="$(InputPath)"
-PostBuild_Cmds=set path=..\..\msvc\win32\libpng\dll_dbg;..\..\msvc\win32\zlib\dll_dbg;	$(outdir)\VisualPng.exe ..\..\contrib\pngsuite\basn6a16.png
+PostBuild_Cmds=set path=..\..\projects\msvc\win32\libpng\dll_dbg;..\..\projects\msvc\win32\zlib\dll_dbg;	$(outdir)\VisualPng.exe ..\..\contrib\pngsuite\basn6a16.png
 # End Special Build Tool

 !ELSEIF  "$(CFG)" == "VisualPng - Win32 LIB"
@@ -128,8 +128,8 @@ BSC32=bscmake.exe
 # ADD BASE BSC32 /nologo
 # ADD BSC32 /nologo
 LINK32=link.exe
-# ADD BASE LINK32 libpng1.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /machine:I386 /libpath:"..\..\msvc\win32\libpng\dll"
-# ADD LINK32 libpng.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /machine:I386 /libpath:"..\..\msvc\win32\libpng\lib"
+# ADD BASE LINK32 libpng1.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /machine:I386 /libpath:"..\..\projects\msvc\win32\libpng\dll"
+# ADD LINK32 libpng.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /machine:I386 /libpath:"..\..\projects\msvc\win32\libpng\lib"
 # Begin Special Build Tool
 OutDir=.\lib
 SOURCE="$(InputPath)"
@@ -161,9 +161,9 @@ BSC32=bscmake.exe
 # ADD BASE BSC32 /nologo
 # ADD BSC32 /nologo
 LINK32=link.exe
-# ADD BASE LINK32 libpng1d.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /nodefaultlib:"libc" /pdbtype:sept /libpath:"..\..\msvc\win32\libpng\dll_dbg"
+# ADD BASE LINK32 libpng1d.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /nodefaultlib:"libc" /pdbtype:sept /libpath:"..\..\projects\msvc\win32\libpng\dll_dbg"
 # SUBTRACT BASE LINK32 /nodefaultlib
-# ADD LINK32 libpng.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /nodefaultlib:"libc" /pdbtype:sept /libpath:"..\..\msvc\win32\libpng\lib_dbg"
+# ADD LINK32 libpng.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:windows /debug /machine:I386 /nodefaultlib:"libc" /pdbtype:sept /libpath:"..\..\projects\msvc\win32\libpng\lib_dbg"
 # SUBTRACT LINK32 /nodefaultlib
 # Begin Special Build Tool
 OutDir=.\lib_dbg
--- a/example.c
+++ b/example.c
@@ -267,7 +267,7 @@ void read_png(FILE *fp, unsigned int sig_read)  /* file is already open */
    */
   if (color_type & PNG_COLOR_MASK_COLOR)
   {
-      png_uint_32 num_palette;
+      int num_palette;
      png_colorp palette;

      /* This reduces the image to the application supplied palette */
@@ -603,9 +603,9 @@ void write_png(char *file_name /* , ... other image information ... */)
      PNG_INTERLACE_????, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);

   /* set the palette if there is one.  REQUIRED for indexed-color images */
-   palette = (png_colorp)png_malloc(png_ptr, 256 * sizeof (png_color));
+   palette = (png_colorp)png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH * sizeof (png_color));
   /* ... set palette colors ... */
-   png_set_PLTE(png_ptr, info_ptr, palette, 256);
+   png_set_PLTE(png_ptr, info_ptr, palette, PNG_MAX_PALETTE_LENGTH);
   /* You must not free palette here, because png_set_PLTE only makes a link to
      the palette that you malloced.  Wait until you are about to destroy
      the png structure. */
@@ -755,11 +755,13 @@ void write_png(char *file_name /* , ... other image information ... */)
      allocated it with malloc() instead of png_malloc(), use free() instead
      of png_free(). */
   png_free(png_ptr, palette);
+   palette=NULL;

   /* Similarly, if you png_malloced any data that you passed in with
      png_set_something(), such as a hist or trans array, free it here,
      when you can be sure that libpng is through with it. */
   png_free(png_ptr, trans);
+   trans=NULL;

   /* clean up after the write, and free any memory allocated */
   png_destroy_write_struct(&png_ptr, &info_ptr);
--- a/libpng.3
+++ b/libpng.3
@@ -1,6 +1,6 @@
-.TH LIBPNG 3 "July 11, 2000"
+.TH LIBPNG 3 "January 31, 2001"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.0.8beta3
+libpng \- Portable Network Graphics (PNG) Reference Library 1.0.9
 .SH SYNOPSIS
 \fI\fB

@@ -40,7 +40,7 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.0.8beta3

 \fI\fB

-\fBpng_structp png_create_read_struct (png_const_charp \fP\fIuser_png_ver\fP\fB, voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fIwarn_fn\fP\fB);\fP
+\fBpng_structp png_create_read_struct (png_const_charp \fP\fIuser_png_ver\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fIwarn_fn\fP\fB);\fP

 \fI\fB

@@ -48,7 +48,7 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.0.8beta3

 \fI\fB

-\fBpng_structp png_create_write_struct (png_const_charp \fP\fIuser_png_ver\fP\fB, voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fIwarn_fn\fP\fB);\fP
+\fBpng_structp png_create_write_struct (png_const_charp \fP\fIuser_png_ver\fP\fB, png_voidp \fP\fIerror_ptr\fP\fB, png_error_ptr \fP\fIerror_fn\fP\fB, png_error_ptr \fIwarn_fn\fP\fB);\fP

 \fI\fB

@@ -368,7 +368,7 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.0.8beta3

 \fI\fB

-\fBvoid png_read_png (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fItransforms\fP\fB, voidp \fIparams\fP\fB);\fP
+\fBvoid png_read_png (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fItransforms\fP\fB, png_voidp \fIparams\fP\fB);\fP

 \fI\fB

@@ -724,7 +724,7 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.0.8beta3

 \fI\fB

-\fBvoid png_write_png (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fItransforms\fP\fB, voidp \fIparams\fP\fB);\fP
+\fBvoid png_write_png (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fP\fIinfo_ptr\fP\fB, int \fP\fItransforms\fP\fB, png_voidp \fIparams\fP\fB);\fP

 \fI\fB

@@ -747,7 +747,7 @@ Following is a copy of the libpng.txt file that accompanies libpng.
 .SH LIBPNG.TXT
 libpng.txt - A description on how to use and modify libpng

- libpng version 1.0.8beta3 - July 11, 2000
+ libpng version 1.0.9 - January 31, 2001
 Updated and distributed by Glenn Randers-Pehrson
 <randeg@alum.rpi.edu>
 Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
@@ -784,8 +784,7 @@ Libpng was written as a companion to the PNG specification, as a way
 of reducing the amount of time and effort it takes to support the PNG
 file format in application programs.

-The PNG-1.2 specification is available at <http://www.cdrom.com/pub/png>
-(will be moving to <http://www.libpng.org>)
+The PNG-1.2 specification is available at <http://www.libpng.org/pub/png>
 and at <ftp://ftp.uu.net/graphics/png/documents/>.

 The PNG-1.0 specification is available
@@ -796,8 +795,7 @@ documents at <ftp://ftp.uu.net/graphics/png/documents/>.

 Other information
 about PNG, and the latest version of libpng, can be found at the PNG home
-page, <http://www.cdrom.com/pub/png/> (will be moving to
-<http://www.libpng.org>)
+page, <http://www.libpng.org/pub/png/>
 and at <ftp://ftp.uu.net/graphics/png/>.

 Most users will not have to modify the library significantly; advanced
@@ -816,7 +814,7 @@ majority of the needs of its users.

 Libpng uses zlib for its compression and decompression of PNG files.
 Further information about zlib, and the latest version of zlib, can
-be found at the zlib home page, <ftp://ftp.freesoftware.com/pub/infozip/zlib/>.
+be found at the zlib home page, <http://www.info-zip.org/pub/infozip/zlib/>.
 The zlib compression utility is a general purpose utility that is
 useful for more than PNG files, and can be used without libpng.
 See the documentation delivered with zlib for more details.
@@ -1120,7 +1118,7 @@ row_pointers prior to calling png_read_png() with
   row_pointers = png_malloc(png_ptr, height*sizeof(png_bytep));
   for (int i=0; i<height, i++)
      row_pointers[i]=png_malloc(png_ptr, width*pixel_size);
-   png_set_rows(png_ptr, info_ptr, &row_pointers); 
+   png_set_rows(png_ptr, info_ptr, &row_pointers);

 Alternatively you could allocate your image in one big block and define
 row_pointers[i] to point into the proper places in your block.
@@ -1149,7 +1147,7 @@ in until png_read_end() has read the chunk data following the image.

    png_get_IHDR(png_ptr, info_ptr, &width, &height,
       &bit_depth, &color_type, &interlace_type,
-       &compression_type, &filter_type);
+       &compression_type, &filter_method);

    width          - holds the width of the image
                     in pixels (up to 2^31).
@@ -1177,15 +1175,18 @@ in until png_read_end() has read the chunk data following the image.
                     PNG_COLOR_MASK_COLOR
                     PNG_COLOR_MASK_ALPHA

-    filter_type    - (must be PNG_FILTER_TYPE_BASE
-                     for PNG 1.0)
+    filter_method  - (must be PNG_FILTER_TYPE_BASE
+                     for PNG 1.0, and can also be
+                     PNG_INTRAPIXEL_DIFFERENCING if
+                     the PNG datastream is embedded in
+                     a MNG-1.0 datastream)
    compression_type - (must be PNG_COMPRESSION_TYPE_BASE
                     for PNG 1.0)
    interlace_type - (PNG_INTERLACE_NONE or
                     PNG_INTERLACE_ADAM7)
    Any or all of interlace_type, compression_type, of
-                     filter_type can be NULL if you are not
-                     interested in their values.
+                     filter_method can be NULL if you are
+                     not interested in their values.

    channels = png_get_channels(png_ptr, info_ptr);
    channels       - number of channels of info for the
@@ -1215,7 +1216,7 @@ in until png_read_end() has read the chunk data following the image.
                         info_ptr);
    color_type       = png_get_color_type(png_ptr,
                         info_ptr);
-    filter_type      = png_get_filter_type(png_ptr,
+    filter_method    = png_get_filter_type(png_ptr,
                         info_ptr);
    compression_type = png_get_compression_type(png_ptr,
                         info_ptr);
@@ -1313,7 +1314,7 @@ into the info_ptr is returned for any complex types.
                         (empty string for unknown).
    num_text       - number of comments (same as num_comments;
                     you can put NULL here to avoid the duplication)
-    Note while png_set_text() will accept text, language, and 
+    Note while png_set_text() will accept text, language, and
    translated keywords that can be NULL pointers, the structure
    returned by png_get_text will always contain regular
    zero-terminated C strings.  They might be empty strings but
@@ -1708,7 +1709,7 @@ histogram, it may not do as good a job.
      if (png_get_valid(png_ptr, info_ptr,
         PNG_INFO_PLTE))
      {
-         png_color_16p histogram;
+         png_uint_16p histogram;

         png_get_hIST(png_ptr, info_ptr,
            &histogram);
@@ -1996,7 +1997,7 @@ application instead of by libpng, you can use
    png_set_invalid(png_ptr, info_ptr, mask);
    mask - identifies the chunks to be made invalid,
           containing the logical OR of one or
-           more of 
+           more of
             PNG_INFO_gAMA, PNG_INFO_sBIT,
             PNG_INFO_cHRM, PNG_INFO_PLTE,
             PNG_INFO_tRNS, PNG_INFO_bKGD,
@@ -2288,10 +2289,11 @@ maximum possible compression at the expense of slower writing.  If you
 have no special needs in this area, let the library do what it wants by
 not calling this function at all, as it has been tuned to deliver a good
 speed/compression ratio. The second parameter to png_set_filter() is
-the filter method, for which the only valid value is '0' (as of the
-July 1999 PNG specification, version 1.2).  The third parameter is a
-flag that indicates which filter type(s) are to be tested for each
-scanline.  See the PNG specification for details on the specific filter
+the filter method, for which the only valid values are 0 (as of the
+July 1999 PNG specification, version 1.2) or 64 (if you are writing
+a PNG datastream that is to be embedded in a MNG datastream).  The third
+parameter is a flag that indicates which filter type(s) are to be tested
+for each scanline.  See the PNG specification for details on the specific filter
 types.


@@ -2312,6 +2314,9 @@ it should start out with all of the filters (to ensure that the previous
 row of pixels will be stored in case it's needed later), and then add
 and remove them after the start of compression.

+If you are writing a PNG datastream that is to be embedded in a MNG
+datastream, the second parameter can be either 0 or 64.
+
 The png_set_compression_*() functions interface to the zlib compression
 library, and should mostly be ignored unless you really know what you are
 doing.  The only generally useful call is png_set_compression_level()
@@ -2350,7 +2355,7 @@ Some of the more important parts of the png_info are:

    png_set_IHDR(png_ptr, info_ptr, width, height,
       bit_depth, color_type, interlace_type,
-       compression_type, filter_type)
+       compression_type, filter_method)
    width          - holds the width of the image
                     in pixels (up to 2^31).
    height         - holds the height of the image
@@ -2382,7 +2387,11 @@ Some of the more important parts of the png_info are:
                     PNG_INTERLACE_ADAM7
    compression_type - (must be
                     PNG_COMPRESSION_TYPE_DEFAULT)
-    filter_type    - (must be PNG_FILTER_TYPE_DEFAULT)
+    filter_method  - (must be PNG_FILTER_TYPE_DEFAULT
+                     or, if you are writing a PNG to
+                     be embedded in a MNG datastream,
+                     can also be
+                     PNG_INTRAPIXEL_DIFFERENCING)

    png_set_PLTE(png_ptr, info_ptr, palette,
       num_palette);
@@ -2980,13 +2989,22 @@ For a more compact example of writing a PNG image, see the file example.c.

 .SH V. Modifying/Customizing libpng:

-There are two issues here.  The first is changing how libpng does
+There are three issues here.  The first is changing how libpng does
 standard things like memory allocation, input/output, and error handling.
 The second deals with more complicated things like adding new chunks,
 adding new transformations, and generally changing how libpng works.
+Both of those are compile-time issues; that is, they are generally
+determined at the time the code is written, and there is rarely a need
+to provide the user with a means of changing them.  The third is a
+run-time issue:  choosing between and/or tuning one or more alternate
+versions of computationally intensive routines; specifically, optimized
+assembly-language (and therefore compiler- and platform-dependent)
+versions.
+
+Memory allocation, input/output, and error handling

 All of the memory allocation, input/output, and error handling in libpng
-goes through callbacks that are user settable.  The default routines are
+goes through callbacks that are user-settable.  The default routines are
 in pngmem.c, pngrio.c, pngwio.c, and pngerror.c, respectively.  To change
 these functions, call the appropriate png_set_*_fn() function.

@@ -3219,6 +3237,10 @@ structures appropriately for all of the filter types.

    png_set_filter(png_ptr, PNG_FILTER_TYPE_BASE,
       filters);
+              The second parameter can also be PNG_INTRAPIXEL_DIFFERENCING
+              if you are writing a PNG to be embedded in a MNG
+              datastream.  This parameter must be the same as the
+              value of filter_method used in png_set_IHDR().

 It is also possible to influence how libpng chooses from among the
 available filters.  This is done in two ways - by telling it how
@@ -3330,7 +3352,33 @@ When PNG_DEBUG = 1, the macros are defined, but only png_debug statements
 having level = 0 will be printed.  There aren't any such statements in
 this version of libpng, but if you insert some they will be printed.

-.SH VI.  Changes to Libpng from version 0.88
+
+.SH VI.  MNG support
+
+The MNG specification (available at http://www.libpng.org/pub/mng) allows
+certain extensions to PNG for PNG images that are embedded in MNG datastreams.
+Libpng can support some of these extensions.  To enable them, use the
+png_permit_mng_features() function:
+
+   feature_set = png_permit_mng_features(png_ptr, mask)
+   mask is a png_uint_32 containing the logical OR of the
+        features you want to enable.  These include
+        PNG_FLAG_MNG_EMPTY_PLTE
+        PNG_FLAG_MNG_FILTER_64
+        PNG_ALL_MNG_FEATURES
+   feature_set is a png_32_uint that is the logical AND of
+      your mask with the set of MNG features that is
+      supported by the version of libpng that you are using.
+
+It is an error to use this function when reading or writing a standalone
+PNG file with the PNG 8-byte signature.  The PNG datastream must be wrapped
+in a MNG datastream.  As a minimum, it must have the MNG 8-byte signature
+and the MHDR and MEND chunks.  Libpng does not provide support for these
+or any other MNG chunks; your application must provide its own support for
+them.  You may wish to consider using libmng (available at
+http://www.libmng.com) instead.
+
+.SH VII.  Changes to Libpng from version 0.88

 It should be noted that versions of libpng later than 0.96 are not
 distributed by the original libpng author, Guy Schalnat, nor by
@@ -3379,15 +3427,15 @@ application:

   png_uint_32 application_vn = PNG_LIBPNG_VER;

-.SH VII. Y2K Compliance in libpng
+.SH VIII. Y2K Compliance in libpng

-July 11, 2000
+January 31, 2001

 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.

 This is your unofficial assurance that libpng from version 0.71 and
-upward through 1.0.8beta3 are Y2K compliant.  It is my belief that earlier
+upward through 1.0.9 are Y2K compliant.  It is my belief that earlier
 versions were also Y2K compliant.

 Libpng only has three year fields.  One is a 2-byte unsigned integer that
@@ -3488,7 +3536,7 @@ libpngpf(3), png(5)
 .IR libpng :
 .IP
 ftp://ftp.uu.net/graphics/png
-http://www.cdrom.com/pub/png
+http://www.libpng.org/pub/png

 .LP
 .IR zlib :
@@ -3499,7 +3547,7 @@ or at
 .br
 ftp://ftp.uu.net/pub/archiving/zip/zlib
 .br
-ftp://ftp.freesoftware.com/pub/infozip/zlib
+ftp://ftp.info-zip.org/pub/infozip/zlib

 .LP
 .IR PNG specification: RFC 2083
@@ -3528,7 +3576,7 @@ possible without all of you.

 Thanks to Frank J. T. Wojcik for helping with the documentation.

-Libpng version 1.0.8beta3 - July 11, 2000:
+Libpng version 1.0.9 - January 31, 2001:
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (randeg@alum.rpi.edu).

@@ -3538,12 +3586,16 @@ Supported by the PNG development group

 .SH COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:

+(This copy of the libpng notices is provided for your convenience.  In case of
+any discrepancy between this copy and the notices in the file png.h that is
+included in the libpng distribution, the latter shall prevail.)
+
 If you modify libpng you may insert additional notices immediately following
 this sentence.

-libpng version 1.0.8beta3, July 11, 2000 is
-Copyright (c) 2000 Glenn Randers-Pehrson
-Distributed according to the same disclaimer and license as libpng-1.0.6
+libpng versions 1.0.7, July 1, 2000, through  1.0.9, January 31, 2001, are
+Copyright (c) 2000 Glenn Randers-Pehrson, and are
+distributed according to the same disclaimer and license as libpng-1.0.6
 with the following individuals added to the list of Contributing Authors

   Simon-Pierre Cadieux
@@ -3625,14 +3677,14 @@ boxes and the like:
   printf("%s",png_get_copyright(NULL));

 Also, the PNG logo (in PNG format, of course) is supplied in the
-file "pngnow.png".
+files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).

 Libpng is OSI Certified Open Source Software.  OSI Certified Open Source is a
 certification mark of the Open Source Initiative.

 Glenn Randers-Pehrson
 randeg@alum.rpi.edu
-July 11, 2000
+January 31, 2001

 .\" end of man page

--- a/libpng.txt
+++ b/libpng.txt
@@ -1,6 +1,6 @@
 libpng.txt - A description on how to use and modify libpng

- libpng version 1.0.8beta3 - July 11, 2000
+ libpng version 1.0.9 - January 31, 2001
 Updated and distributed by Glenn Randers-Pehrson
 <randeg@alum.rpi.edu>
 Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
@@ -37,8 +37,7 @@ Libpng was written as a companion to the PNG specification, as a way
 of reducing the amount of time and effort it takes to support the PNG
 file format in application programs.

-The PNG-1.2 specification is available at <http://www.cdrom.com/pub/png>
-(will be moving to <http://www.libpng.org>)
+The PNG-1.2 specification is available at <http://www.libpng.org/pub/png>
 and at <ftp://ftp.uu.net/graphics/png/documents/>.

 The PNG-1.0 specification is available
@@ -49,8 +48,7 @@ documents at <ftp://ftp.uu.net/graphics/png/documents/>.

 Other information
 about PNG, and the latest version of libpng, can be found at the PNG home
-page, <http://www.cdrom.com/pub/png/> (will be moving to
-<http://www.libpng.org>)
+page, <http://www.libpng.org/pub/png/>
 and at <ftp://ftp.uu.net/graphics/png/>.

 Most users will not have to modify the library significantly; advanced
@@ -69,7 +67,7 @@ majority of the needs of its users.

 Libpng uses zlib for its compression and decompression of PNG files.
 Further information about zlib, and the latest version of zlib, can
-be found at the zlib home page, <ftp://ftp.freesoftware.com/pub/infozip/zlib/>.
+be found at the zlib home page, <http://www.info-zip.org/pub/infozip/zlib/>.
 The zlib compression utility is a general purpose utility that is
 useful for more than PNG files, and can be used without libpng.
 See the documentation delivered with zlib for more details.
@@ -373,7 +371,7 @@ row_pointers prior to calling png_read_png() with
   row_pointers = png_malloc(png_ptr, height*sizeof(png_bytep));
   for (int i=0; i<height, i++)
      row_pointers[i]=png_malloc(png_ptr, width*pixel_size);
-   png_set_rows(png_ptr, info_ptr, &row_pointers); 
+   png_set_rows(png_ptr, info_ptr, &row_pointers);

 Alternatively you could allocate your image in one big block and define
 row_pointers[i] to point into the proper places in your block.
@@ -402,7 +400,7 @@ in until png_read_end() has read the chunk data following the image.

    png_get_IHDR(png_ptr, info_ptr, &width, &height,
       &bit_depth, &color_type, &interlace_type,
-       &compression_type, &filter_type);
+       &compression_type, &filter_method);

    width          - holds the width of the image
                     in pixels (up to 2^31).
@@ -430,15 +428,18 @@ in until png_read_end() has read the chunk data following the image.
                     PNG_COLOR_MASK_COLOR
                     PNG_COLOR_MASK_ALPHA

-    filter_type    - (must be PNG_FILTER_TYPE_BASE
-                     for PNG 1.0)
+    filter_method  - (must be PNG_FILTER_TYPE_BASE
+                     for PNG 1.0, and can also be
+                     PNG_INTRAPIXEL_DIFFERENCING if
+                     the PNG datastream is embedded in
+                     a MNG-1.0 datastream)
    compression_type - (must be PNG_COMPRESSION_TYPE_BASE
                     for PNG 1.0)
    interlace_type - (PNG_INTERLACE_NONE or
                     PNG_INTERLACE_ADAM7)
    Any or all of interlace_type, compression_type, of
-                     filter_type can be NULL if you are not
-                     interested in their values.
+                     filter_method can be NULL if you are
+                     not interested in their values.

    channels = png_get_channels(png_ptr, info_ptr);
    channels       - number of channels of info for the
@@ -468,7 +469,7 @@ in until png_read_end() has read the chunk data following the image.
                         info_ptr);
    color_type       = png_get_color_type(png_ptr,
                         info_ptr);
-    filter_type      = png_get_filter_type(png_ptr,
+    filter_method    = png_get_filter_type(png_ptr,
                         info_ptr);
    compression_type = png_get_compression_type(png_ptr,
                         info_ptr);
@@ -566,7 +567,7 @@ into the info_ptr is returned for any complex types.
                         (empty string for unknown).
    num_text       - number of comments (same as num_comments;
                     you can put NULL here to avoid the duplication)
-    Note while png_set_text() will accept text, language, and 
+    Note while png_set_text() will accept text, language, and
    translated keywords that can be NULL pointers, the structure
    returned by png_get_text will always contain regular
    zero-terminated C strings.  They might be empty strings but
@@ -961,7 +962,7 @@ histogram, it may not do as good a job.
      if (png_get_valid(png_ptr, info_ptr,
         PNG_INFO_PLTE))
      {
-         png_color_16p histogram;
+         png_uint_16p histogram;

         png_get_hIST(png_ptr, info_ptr,
            &histogram);
@@ -1249,7 +1250,7 @@ application instead of by libpng, you can use
    png_set_invalid(png_ptr, info_ptr, mask);
    mask - identifies the chunks to be made invalid,
           containing the logical OR of one or
-           more of 
+           more of
             PNG_INFO_gAMA, PNG_INFO_sBIT,
             PNG_INFO_cHRM, PNG_INFO_PLTE,
             PNG_INFO_tRNS, PNG_INFO_bKGD,
@@ -1541,10 +1542,11 @@ maximum possible compression at the expense of slower writing.  If you
 have no special needs in this area, let the library do what it wants by
 not calling this function at all, as it has been tuned to deliver a good
 speed/compression ratio. The second parameter to png_set_filter() is
-the filter method, for which the only valid value is '0' (as of the
-July 1999 PNG specification, version 1.2).  The third parameter is a
-flag that indicates which filter type(s) are to be tested for each
-scanline.  See the PNG specification for details on the specific filter
+the filter method, for which the only valid values are 0 (as of the
+July 1999 PNG specification, version 1.2) or 64 (if you are writing
+a PNG datastream that is to be embedded in a MNG datastream).  The third
+parameter is a flag that indicates which filter type(s) are to be tested
+for each scanline.  See the PNG specification for details on the specific filter
 types.


@@ -1565,6 +1567,9 @@ it should start out with all of the filters (to ensure that the previous
 row of pixels will be stored in case it's needed later), and then add
 and remove them after the start of compression.

+If you are writing a PNG datastream that is to be embedded in a MNG
+datastream, the second parameter can be either 0 or 64.
+
 The png_set_compression_*() functions interface to the zlib compression
 library, and should mostly be ignored unless you really know what you are
 doing.  The only generally useful call is png_set_compression_level()
@@ -1603,7 +1608,7 @@ Some of the more important parts of the png_info are:

    png_set_IHDR(png_ptr, info_ptr, width, height,
       bit_depth, color_type, interlace_type,
-       compression_type, filter_type)
+       compression_type, filter_method)
    width          - holds the width of the image
                     in pixels (up to 2^31).
    height         - holds the height of the image
@@ -1635,7 +1640,11 @@ Some of the more important parts of the png_info are:
                     PNG_INTERLACE_ADAM7
    compression_type - (must be
                     PNG_COMPRESSION_TYPE_DEFAULT)
-    filter_type    - (must be PNG_FILTER_TYPE_DEFAULT)
+    filter_method  - (must be PNG_FILTER_TYPE_DEFAULT
+                     or, if you are writing a PNG to
+                     be embedded in a MNG datastream,
+                     can also be
+                     PNG_INTRAPIXEL_DIFFERENCING)

    png_set_PLTE(png_ptr, info_ptr, palette,
       num_palette);
@@ -2233,13 +2242,22 @@ For a more compact example of writing a PNG image, see the file example.c.

 V. Modifying/Customizing libpng:

-There are two issues here.  The first is changing how libpng does
+There are three issues here.  The first is changing how libpng does
 standard things like memory allocation, input/output, and error handling.
 The second deals with more complicated things like adding new chunks,
 adding new transformations, and generally changing how libpng works.
+Both of those are compile-time issues; that is, they are generally
+determined at the time the code is written, and there is rarely a need
+to provide the user with a means of changing them.  The third is a
+run-time issue:  choosing between and/or tuning one or more alternate
+versions of computationally intensive routines; specifically, optimized
+assembly-language (and therefore compiler- and platform-dependent)
+versions.
+
+Memory allocation, input/output, and error handling

 All of the memory allocation, input/output, and error handling in libpng
-goes through callbacks that are user settable.  The default routines are
+goes through callbacks that are user-settable.  The default routines are
 in pngmem.c, pngrio.c, pngwio.c, and pngerror.c, respectively.  To change
 these functions, call the appropriate png_set_*_fn() function.

@@ -2472,6 +2490,10 @@ structures appropriately for all of the filter types.

    png_set_filter(png_ptr, PNG_FILTER_TYPE_BASE,
       filters);
+              The second parameter can also be PNG_INTRAPIXEL_DIFFERENCING
+              if you are writing a PNG to be embedded in a MNG
+              datastream.  This parameter must be the same as the
+              value of filter_method used in png_set_IHDR().

 It is also possible to influence how libpng chooses from among the
 available filters.  This is done in two ways - by telling it how
@@ -2583,7 +2605,33 @@ When PNG_DEBUG = 1, the macros are defined, but only png_debug statements
 having level = 0 will be printed.  There aren't any such statements in
 this version of libpng, but if you insert some they will be printed.

-VI.  Changes to Libpng from version 0.88
+
+VI.  MNG support
+
+The MNG specification (available at http://www.libpng.org/pub/mng) allows
+certain extensions to PNG for PNG images that are embedded in MNG datastreams.
+Libpng can support some of these extensions.  To enable them, use the
+png_permit_mng_features() function:
+
+   feature_set = png_permit_mng_features(png_ptr, mask)
+   mask is a png_uint_32 containing the logical OR of the
+        features you want to enable.  These include
+        PNG_FLAG_MNG_EMPTY_PLTE
+        PNG_FLAG_MNG_FILTER_64
+        PNG_ALL_MNG_FEATURES
+   feature_set is a png_32_uint that is the logical AND of
+      your mask with the set of MNG features that is
+      supported by the version of libpng that you are using.
+
+It is an error to use this function when reading or writing a standalone
+PNG file with the PNG 8-byte signature.  The PNG datastream must be wrapped
+in a MNG datastream.  As a minimum, it must have the MNG 8-byte signature
+and the MHDR and MEND chunks.  Libpng does not provide support for these
+or any other MNG chunks; your application must provide its own support for
+them.  You may wish to consider using libmng (available at
+http://www.libmng.com) instead.
+
+VII.  Changes to Libpng from version 0.88

 It should be noted that versions of libpng later than 0.96 are not
 distributed by the original libpng author, Guy Schalnat, nor by
@@ -2632,15 +2680,15 @@ application:

   png_uint_32 application_vn = PNG_LIBPNG_VER;

-VII. Y2K Compliance in libpng
+VIII. Y2K Compliance in libpng

-July 11, 2000
+January 31, 2001

 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.

 This is your unofficial assurance that libpng from version 0.71 and
-upward through 1.0.8beta3 are Y2K compliant.  It is my belief that earlier
+upward through 1.0.9 are Y2K compliant.  It is my belief that earlier
 versions were also Y2K compliant.

 Libpng only has three year fields.  One is a 2-byte unsigned integer that
--- a/libpngpf.3
+++ b/libpngpf.3
@@ -1,6 +1,6 @@
-.TH LIBPNGPF 3 "July 11, 2000"
+.TH LIBPNGPF 3 "January 31, 2001"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.0.8beta3
+libpng \- Portable Network Graphics (PNG) Reference Library 1.0.9
 (private functions)
 .SH SYNOPSIS
 \fB#include <png.h>\fP
--- a/png.5
+++ b/png.5
@@ -1,4 +1,4 @@
-.TH PNG 5 "July 11, 2000"
+.TH PNG 5 "January 31, 2001"
 .SH NAME
 png \- Portable Network Graphics (PNG) format
 .SH DESCRIPTION
@@ -23,7 +23,7 @@ platforms.
 PNG 1.2 specification, July 1999:
 .IP
 .br
-http://www.cdrom.com/pub/png (moving to http://www.libpng.org)
+http://www.libpng.org/pub/png
 .br
 or ftp://ftp.uu.net/graphics/png/documents
 .LP
--- a/png.c
+++ b/png.c
@@ -1,8 +1,8 @@

 /* png.c - location for general purpose libpng functions
 *
- * libpng version 1.0.8beta3 - July 11, 2000
- * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
+ * libpng version 1.0.9 - January 31, 2001
+ * Copyright (c) 1998-2001 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
@@ -13,18 +13,18 @@
 #include "png.h"

 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef version_1_0_8beta3 Your_png_h_is_not_version_1_0_8beta3;
+typedef version_1_0_9 Your_png_h_is_not_version_1_0_9;

 /* Version information for C files.  This had better match the version
 * string defined in png.h.  */

 #ifdef PNG_USE_GLOBAL_ARRAYS
 /* png_libpng_ver was changed to a function in version 1.0.5c */
-char png_libpng_ver[12] = "1.0.8beta3";
+const char png_libpng_ver[18] = "1.0.9";

 /* png_sig was changed to a function in version 1.0.5c */
 /* Place to hold the signature string for a PNG file. */
-png_byte FARDATA png_sig[8] = {137, 80, 78, 71, 13, 10, 26, 10};
+const png_byte FARDATA png_sig[8] = {137, 80, 78, 71, 13, 10, 26, 10};

 /* Invoke global declarations for constant strings for known chunk types */
 PNG_IHDR;
@@ -52,32 +52,33 @@ PNG_zTXt;
 /* arrays to facilitate easy interlacing - use pass (0 - 6) as index */

 /* start of interlace block */
-int FARDATA png_pass_start[] = {0, 4, 0, 2, 0, 1, 0};
+const int FARDATA png_pass_start[] = {0, 4, 0, 2, 0, 1, 0};

 /* offset to next interlace block */
-int FARDATA png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1};
+const int FARDATA png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1};

 /* start of interlace block in the y direction */
-int FARDATA png_pass_ystart[] = {0, 0, 4, 0, 2, 0, 1};
+const int FARDATA png_pass_ystart[] = {0, 0, 4, 0, 2, 0, 1};

 /* offset to next interlace block in the y direction */
-int FARDATA png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2};
+const int FARDATA png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2};

 /* width of interlace block (used in assembler routines only) */
 #ifdef PNG_HAVE_ASSEMBLER_COMBINE_ROW
-int FARDATA png_pass_width[] = {8, 4, 4, 2, 2, 1, 1};
+const int FARDATA png_pass_width[] = {8, 4, 4, 2, 2, 1, 1};
 #endif

 /* Height of interlace block.  This is not currently used - if you need
 * it, uncomment it here and in png.h
-int FARDATA png_pass_height[] = {8, 8, 4, 4, 2, 2, 1};
+const int FARDATA png_pass_height[] = {8, 8, 4, 4, 2, 2, 1};
 */

 /* Mask to determine which pixels are valid in a pass */
-int FARDATA png_pass_mask[] = {0x80, 0x08, 0x88, 0x22, 0xaa, 0x55, 0xff};
+const int FARDATA png_pass_mask[] = {0x80, 0x08, 0x88, 0x22, 0xaa, 0x55, 0xff};

 /* Mask to determine which pixels to overwrite while displaying */
-int FARDATA png_pass_dsp_mask[] = {0xff, 0x0f, 0xff, 0x33, 0xff, 0x55, 0xff};
+const int FARDATA png_pass_dsp_mask[]
+   = {0xff, 0x0f, 0xff, 0x33, 0xff, 0x55, 0xff};

 #endif

@@ -140,6 +141,7 @@ png_zalloc(voidpf png_ptr, uInt items, uInt size)
   png_uint_32 num_bytes = (png_uint_32)items * size;
   png_voidp ptr = (png_voidp)png_malloc((png_structp)png_ptr, num_bytes);

+#ifndef PNG_NO_ZALLOC_ZERO
   if (num_bytes > (png_uint_32)0x8000L)
   {
      png_memset(ptr, 0, (png_size_t)0x8000L);
@@ -150,6 +152,7 @@ png_zalloc(voidpf png_ptr, uInt items, uInt size)
   {
      png_memset(ptr, 0, (png_size_t)num_bytes);
   }
+#endif
   return ((voidpf)ptr);
 }

@@ -361,7 +364,10 @@ if (mask & PNG_FREE_PCAL)
    {
        int i;
        for (i = 0; i < (int)info_ptr->pcal_nparams; i++)
+        {
          png_free(png_ptr, info_ptr->pcal_params[i]);
+          info_ptr->pcal_params[i]=NULL;
+        }
        png_free(png_ptr, info_ptr->pcal_params);
        info_ptr->pcal_params = NULL;
    }
@@ -491,7 +497,10 @@ if (mask & PNG_FREE_ROWS)
    {
       int row;
       for (row = 0; row < (int)info_ptr->height; row++)
+       {
          png_free(png_ptr, info_ptr->row_pointers[row]);
+          info_ptr->row_pointers[row]=NULL;
+       }
       png_free(png_ptr, info_ptr->row_pointers);
       info_ptr->row_pointers=NULL;
    }
@@ -517,11 +526,12 @@ png_info_destroy(png_structp png_ptr, png_infop info_ptr)
   png_debug(1, "in png_info_destroy\n");

   png_free_data(png_ptr, info_ptr, PNG_FREE_ALL, -1);
-    
+
 #if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
   if (png_ptr->num_chunk_list)
   {
       png_free(png_ptr, png_ptr->chunk_list);
+       png_ptr->chunk_list=NULL;
       png_ptr->num_chunk_list=0;
   }
 #endif
@@ -616,11 +626,11 @@ png_charp PNGAPI
 png_get_copyright(png_structp png_ptr)
 {
   if (png_ptr != NULL || png_ptr == NULL)  /* silence compiler warning */
-   return ("\n libpng version 1.0.8beta3 - July 11, 2000\n\
-   Copyright (c) 1998-2000 Glenn Randers-Pehrson\n\
+   return ((png_charp) "\n libpng version 1.0.9 - January 31, 2001\n\
+   Copyright (c) 1998-2001 Glenn Randers-Pehrson\n\
   Copyright (c) 1996, 1997 Andreas Dilger\n\
   Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.\n");
-   return ("");
+   return ((png_charp) "");
 }

 /* The following return the library version as a short string in the
@@ -634,8 +644,8 @@ png_get_libpng_ver(png_structp png_ptr)
 {
   /* Version of *.c files used when building libpng */
   if(png_ptr != NULL) /* silence compiler warning about unused png_ptr */
-      return("1.0.8beta3");
-   return("1.0.8beta3");
+      return((png_charp) "1.0.9");
+   return((png_charp) "1.0.9");
 }

 png_charp PNGAPI
@@ -643,8 +653,8 @@ png_get_header_ver(png_structp png_ptr)
 {
   /* Version of *.h files used when building libpng */
   if(png_ptr != NULL) /* silence compiler warning about unused png_ptr */
-      return(PNG_LIBPNG_VER_STRING);
-   return(PNG_LIBPNG_VER_STRING);
+      return((png_charp) PNG_LIBPNG_VER_STRING);
+   return((png_charp) PNG_LIBPNG_VER_STRING);
 }

 png_charp PNGAPI
@@ -652,8 +662,8 @@ png_get_header_version(png_structp png_ptr)
 {
   /* Returns longer string containing both version and date */
   if(png_ptr != NULL) /* silence compiler warning about unused png_ptr */
-      return(PNG_HEADER_VERSION_STRING);
-   return(PNG_HEADER_VERSION_STRING);
+      return((png_charp) PNG_HEADER_VERSION_STRING);
+   return((png_charp) PNG_HEADER_VERSION_STRING);
 }

 #ifdef PNG_HANDLE_AS_UNKNOWN_SUPPORTED
@@ -680,9 +690,22 @@ png_reset_zstream(png_structp png_ptr)
   return (inflateReset(&png_ptr->zstream));
 }

+/* This function was added to libpng-1.0.7 */
 png_uint_32 PNGAPI
 png_access_version_number(void)
 {
   /* Version of *.c files used when building libpng */
-   return((png_uint_32) 10008L);
+   return((png_uint_32) 10009L);
 }
+
+
+#if 0 /* delay this until version 1.2.0 */
+/* this function was added to libpng 1.0.9 (porting aid to libpng-1.2.0) */
+#ifndef PNG_ASSEMBLER_CODE_SUPPORTED
+int PNGAPI
+png_mmx_support(void)
+{
+    return -1;
+}
+#endif
+#endif /* 0 */
--- a/png.h
+++ b/png.h
@@ -1,15 +1,15 @@

 /* png.h - header file for PNG reference library
 *
- * libpng version 1.0.8beta3 - July 11, 2000
- * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
+ * libpng version 1.0.9 - January 31, 2001
+ * Copyright (c) 1998-2001 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
 * Authors and maintainers:
 *  libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
 *  libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
- *  libpng versions 0.97, January 1998, through 1.0.8beta3 - July 11, 2000: Glenn
+ *  libpng versions 0.97, January 1998, through 1.0.9 - January 31, 2001: Glenn
 *  See also "Contributing Authors", below.
 *
 * Note about libpng version numbers:
@@ -52,15 +52,23 @@
 *    1.0.6h                        10007  10.6h (testing xy.z so-numbering)
 *    1.0.6i                        10007  10.6i
 *    1.0.6j                        10007  2.1.0.6j (incompatible with 1.0.0)
- *    1.0.7beta11-18                10007  2.1.0.7beta11-18 (binary compatible)
- *    1.0.7rc1-2                    10007  2.1.0.7rc1-2 (binary compatible)
- *    1.0.7                         10007  (still compatible)
- *    1.0.7beta1-2                  10008  2.1.0.8beta1-2
+ *    1.0.7beta11-14        DLLNUM  10007  2.1.0.7beta11-14 (binary compatible)
+ *    1.0.7beta15-18           1    10007  2.1.0.7beta15-18 (binary compatible)
+ *    1.0.7rc1-2               1    10007  2.1.0.7rc1-2 (binary compatible)
+ *    1.0.7                    1    10007  (still compatible)
+ *    1.0.8beta1-4             1    10008  2.1.0.8beta1-4
+ *    1.0.8rc1                 1    10008  2.1.0.8rc1
+ *    1.0.8                    1    10008  2.1.0.8
+ *    1.0.9beta1-6             1    10009  2.1.0.9beta1-6
+ *    1.0.9rc1                 1    10009  2.1.0.9rc1
+ *    1.0.9beta7-10            1    10009  2.1.0.9beta7-10
+ *    1.0.9rc2                 1    10009  2.1.0.9rc2
+ *    1.0.9                    1    10009  2.1.0.9
 *
 *    Henceforth the source version will match the shared-library major
 *    and minor numbers; the shared-library major version number will be
 *    used for changes in backward compatibility, as it is intended.  The
- *    PNG_PNGLIB_VER macro, which is not used within libpng but is available
+ *    PNG_LIBPNG_VER macro, which is not used within libpng but is available
 *    for applications, is an unsigned integer of the form xyyzz corresponding
 *    to the source version x.y.z (leading zeros in y and z).  Beta versions
 *    were given the previous public release number plus a letter, until
@@ -71,6 +79,9 @@
 *    to the info_ptr or png_ptr members through png.h, and the compiled
 *    application is loaded with a different version of the library.
 *
+ *    DLLNUM will change each time there are forward or backward changes
+ *    in binary compatibility (e.g., when a new feature is added).
+ *
 * See libpng.txt or libpng.3 for more information.  The PNG specification
 * is available as RFC 2083 <ftp://ftp.uu.net/graphics/png/documents/>
 * and as a W3C Recommendation <http://www.w3.org/TR/REC.png.html>
@@ -82,9 +93,9 @@
 * If you modify libpng you may insert additional notices immediately following
 * this sentence.
 *
- * libpng version 1.0.8beta3, July 11, 2000, is
- * Copyright (c) 2000 Glenn Randers-Pehrson
- * Distributed according to the same disclaimer and license as libpng-1.0.6
+ * libpng versions 1.0.7, July 1, 2000, through  1.0.9, January 31, 2001, are
+ * Copyright (c) 2000, 2001 Glenn Randers-Pehrson, and are
+ * distributed according to the same disclaimer and license as libpng-1.0.6
 * with the following individuals added to the list of Contributing Authors
 *
 *    Simon-Pierre Cadieux
@@ -167,7 +178,7 @@
 * printf("%s",png_get_copyright(NULL));
 *
 * Also, the PNG logo (in PNG format, of course) is supplied in the
- * file "pngnow.png".
+ * files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).
 */

 /*
@@ -187,13 +198,13 @@
 * Y2K compliance in libpng:
 * =========================
 *
- *    July 11, 2000
+ *    January 31, 2001
 *
 *    Since the PNG Development group is an ad-hoc body, we can't make
 *    an official declaration.
 *
 *    This is your unofficial assurance that libpng from version 0.71 and
- *    upward through 1.0.8beta3 are Y2K compliant.  It is my belief that earlier
+ *    upward through 1.0.9 are Y2K compliant.  It is my belief that earlier
 *    versions were also Y2K compliant.
 *
 *    Libpng only has three year fields.  One is a 2-byte unsigned integer
@@ -249,40 +260,43 @@
 */

 /* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.0.8beta3"
+#define PNG_LIBPNG_VER_STRING "1.0.9"

 #define PNG_LIBPNG_VER_SONUM   2
+#define PNG_LIBPNG_VER_DLLNUM  %DLLNUM%

 /* These should match the first 3 components of PNG_LIBPNG_VER_STRING: */
 #define PNG_LIBPNG_VER_MAJOR   1
 #define PNG_LIBPNG_VER_MINOR   0
-#define PNG_LIBPNG_VER_RELEASE 8
+#define PNG_LIBPNG_VER_RELEASE 9
 /* This should match the numeric part of the final component of
 * PNG_LIBPNG_VER_STRING, omitting any leading zero: */
-#define PNG_LIBPNG_VER_BUILD   3
+
+#define PNG_LIBPNG_VER_BUILD  0
+
+#define PNG_LIBPNG_BUILD_ALPHA    1
+#define PNG_LIBPNG_BUILD_BETA     2
+#define PNG_LIBPNG_BUILD_RC       3
+#define PNG_LIBPNG_BUILD_STABLE   4
+#define PNG_LIBPNG_BUILD_TYPEMASK 7
+#define PNG_LIBPNG_BUILD_PATCH    8 /* Can be OR'ed with STABLE only */
+#define PNG_LIBPNG_BUILD_TYPE 4

 /* Careful here.  At one time, Guy wanted to use 082, but that would be octal.
 * We must not include leading zeros.
 * Versions 0.7 through 1.0.0 were in the range 0 to 100 here (only
 * version 1.0.0 was mis-numbered 100 instead of 10000).  From
 * version 1.0.1 it's    xxyyzz, where x=major, y=minor, z=release */
-#define PNG_LIBPNG_VER 10008 /* 1.0.8 */
-
-/* Note to maintainer: update this number in scripts/pngdef.pas as well */
+#define PNG_LIBPNG_VER 10009 /* 1.0.9 */

 #ifndef PNG_VERSION_INFO_ONLY

 /* include the compression library's header */
 #include "zlib.h"

-/* include all user configurable info */
+/* include all user configurable info, including optional assembler routines */
 #include "pngconf.h"

-/* macros for optional assembler routines */
-#if defined(PNG_INTERNAL) && defined(PNG_ASSEMBLER_CODE_SUPPORTED)
-#  include "pngasmrd.h"
-#endif
-
 /* Inhibit C++ name-mangling for libpng functions but not for system calls. */
 #ifdef __cplusplus
 extern "C" {
@@ -300,8 +314,8 @@ extern "C" {
 * the version above.
 */
 #ifdef PNG_USE_GLOBAL_ARRAYS
-PNG_EXPORT_VAR (char) png_libpng_ver[12]; /* need room for 99.99.99-patch-aa0*/
-  /* Note to maintainer: increase to 18 at the next opportunity */
+PNG_EXPORT_VAR (const char) png_libpng_ver[18];
+  /* need room for 99.99.99beta99z*/
 #else
 #define png_libpng_ver png_get_header_ver(NULL)
 #endif
@@ -309,17 +323,17 @@ PNG_EXPORT_VAR (char) png_libpng_ver[12]; /* need room for 99.99.99-patch-aa0*/
 #ifdef PNG_USE_GLOBAL_ARRAYS
 /* This was removed in version 1.0.5c */
 /* Structures to facilitate easy interlacing.  See png.c for more details */
-PNG_EXPORT_VAR (int FARDATA) png_pass_start[7];
-PNG_EXPORT_VAR (int FARDATA) png_pass_inc[7];
-PNG_EXPORT_VAR (int FARDATA) png_pass_ystart[7];
-PNG_EXPORT_VAR (int FARDATA) png_pass_yinc[7];
-PNG_EXPORT_VAR (int FARDATA) png_pass_mask[7];
-PNG_EXPORT_VAR (int FARDATA) png_pass_dsp_mask[7];
+PNG_EXPORT_VAR (const int FARDATA) png_pass_start[7];
+PNG_EXPORT_VAR (const int FARDATA) png_pass_inc[7];
+PNG_EXPORT_VAR (const int FARDATA) png_pass_ystart[7];
+PNG_EXPORT_VAR (const int FARDATA) png_pass_yinc[7];
+PNG_EXPORT_VAR (const int FARDATA) png_pass_mask[7];
+PNG_EXPORT_VAR (const int FARDATA) png_pass_dsp_mask[7];
 #ifdef PNG_HAVE_ASSEMBLER_COMBINE_ROW
-extern int FARDATA png_pass_width[7];   /* now used in pngvcrd.c, pnggccrd.c */
+PNG_EXPORT_VAR (const int FARDATA) png_pass_width[7];
 #endif
 /* This isn't currently used.  If you need it, see png.c for more details.
-extern int FARDATA png_pass_height[7];
+PNG_EXPORT_VAR (const int FARDATA) png_pass_height[7];
 */
 #endif

@@ -436,7 +450,7 @@ typedef png_text FAR * FAR * png_textpp;
 * Two conversions are provided, both from time_t and struct tm.  There
 * is no portable way to convert to either of these structures, as far
 * as I know.  If you know of a portable way, send it to me.  As a side
- * note - PNG is Year 2000 compliant!
+ * note - PNG has always been Year 2000 compliant!
 */
 typedef struct png_time_struct
 {
@@ -494,20 +508,20 @@ typedef png_unknown_chunk FAR * FAR * png_unknown_chunkpp;
 * The following members may have allocated storage attached that should be
 * cleaned up before the structure is discarded: palette, trans, text,
 * pcal_purpose, pcal_units, pcal_params, hist, iccp_name, iccp_profile,
- * splt_palettes, scal_unit, row_pointers, and unknowns.   By default, these are
- * automatically freed when the info structure is deallocated, if they were
+ * splt_palettes, scal_unit, row_pointers, and unknowns.   By default, these
+ * are automatically freed when the info structure is deallocated, if they were
 * allocated internally by libpng.  This behavior can be changed by means
 * of the png_data_freer() function.
 *
- * More allocation details: all the chunk-reading functions that change these
- * members go through the corresponding png_set_* functions.  A function to
- * clear these members is available: see png_free_data().   Some of the
- * png_set_* functions do not depend on being able to point info structure
- * members to any of the storage they are passed (they make their own copies),
- * EXCEPT that the png_set_text functions use the same storage passed to them
- * in the text_ptr or itxt_ptr structure argument, and the png_set_tRNS,
- * png_set_PLTE, png_set_hIST, png_set_iCCP, png_set_rows, png_set_sPLT,
- * and png_set_unknowns do not make their own copies.
+ * More allocation details: all the chunk-reading functions that
+ * change these members go through the corresponding png_set_*
+ * functions.  A function to clear these members is available: see
+ * png_free_data().  The png_set_* functions do not depend on being
+ * able to point info structure members to any of the storage they are
+ * passed (they make their own copies), EXCEPT that the png_set_text
+ * functions use the same storage passed to them in the text_ptr or
+ * itxt_ptr structure argument, and the png_set_rows and png_set_unknowns
+ * functions do not make their own copies.
 */
 typedef struct png_info_struct
 {
@@ -521,6 +535,7 @@ typedef struct png_info_struct
   png_uint_16 num_trans;   /* number of transparent palette color (tRNS) */
   png_byte bit_depth;      /* 1, 2, 4, 8, or 16 bits/channel (from IHDR) */
   png_byte color_type;     /* see PNG_COLOR_TYPE_ below (from IHDR) */
+   /* The following three should have been named *_method not *_type */
   png_byte compression_type; /* must be PNG_COMPRESSION_TYPE_BASE (IHDR) */
   png_byte filter_type;    /* must be PNG_FILTER_TYPE_BASE (from IHDR) */
   png_byte interlace_type; /* One of PNG_INTERLACE_NONE, PNG_INTERLACE_ADAM7 */
@@ -692,6 +707,7 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
   /* iCCP chunk data. */
   png_charp iccp_name;     /* profile name */
   png_charp iccp_profile;  /* International Color Consortium profile data */
+                            /* Note to maintainer: should be png_bytep */
   png_uint_32 iccp_proflen;  /* ICC profile data length */
   png_byte iccp_compression; /* Always zero */
 #endif
@@ -762,6 +778,9 @@ typedef png_info FAR * FAR * png_infopp;
 #define PNG_COLOR_TYPE_RGB        (PNG_COLOR_MASK_COLOR)
 #define PNG_COLOR_TYPE_RGB_ALPHA  (PNG_COLOR_MASK_COLOR | PNG_COLOR_MASK_ALPHA)
 #define PNG_COLOR_TYPE_GRAY_ALPHA (PNG_COLOR_MASK_ALPHA)
+/* aliases */
+#define PNG_COLOR_TYPE_RGBA  PNG_COLOR_TYPE_RGB_ALPHA
+#define PNG_COLOR_TYPE_GA  PNG_COLOR_TYPE_GRAY_ALPHA

 /* This is for compression type. PNG 1.0-1.2 only define the single type. */
 #define PNG_COMPRESSION_TYPE_BASE 0 /* Deflate method 8, 32K window */
@@ -769,6 +788,7 @@ typedef png_info FAR * FAR * png_infopp;

 /* This is for filter type. PNG 1.0-1.2 only define the single type. */
 #define PNG_FILTER_TYPE_BASE      0 /* Single row per-byte filtering */
+#define PNG_INTRAPIXEL_DIFFERENCING 64 /* Used only in MNG datastreams */
 #define PNG_FILTER_TYPE_DEFAULT   PNG_FILTER_TYPE_BASE

 /* These are for the interlacing type.  These values should NOT be changed. */
@@ -809,6 +829,8 @@ typedef png_info FAR * FAR * png_infopp;
 /* This is for text chunks */
 #define PNG_KEYWORD_MAX_LENGTH     79

+/* Maximum number of entries in PLTE/sPLT/tRNS arrays */
+#define PNG_MAX_PALETTE_LENGTH	   256

 /* These determine if an ancillary chunk's data has been successfully read
 * from the PNG header, or if the application has filled in the corresponding
@@ -902,6 +924,11 @@ typedef void (PNGAPI *png_unknown_chunk_ptr) PNGARG((png_structp));
 #define PNG_TRANSFORM_INVERT_ALPHA   0x0400    /* read and write */
 #define PNG_TRANSFORM_STRIP_FILLER   0x0800    /* WRITE only */

+/* Flags for MNG supported features */
+#define PNG_FLAG_MNG_EMPTY_PLTE     0x01
+#define PNG_FLAG_MNG_FILTER_64      0x04
+#define PNG_ALL_MNG_FEATURES        0x05
+
 typedef png_voidp (*png_malloc_ptr) PNGARG((png_structp, png_size_t));
 typedef void (*png_free_ptr) PNGARG((png_structp, png_voidp));

@@ -1135,21 +1162,26 @@ struct png_struct_def
   png_uint_16 rgb_to_gray_blue_coeff;
 #endif

-#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \
+#if defined(PNG_MNG_FEATURES_SUPPORTED) || \
+    defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \
    defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED)
-   png_byte empty_plte_permitted;
+/* Note to maintainer: change this to png_uint_32 at next opportunity */
+   png_byte mng_features_permitted;
 #endif

 #if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED)
   png_fixed_point int_gamma;
 #endif

+   png_byte filter_type;
+
 };

+
 /* This prevents a compiler error in png_get_copyright() in png.c if png.c
-and png.h are both at * version 1.0.8beta3
+and png.h are both at * version 1.0.9
 */
-typedef png_structp version_1_0_8beta3;
+typedef png_structp version_1_0_9;

 typedef png_struct FAR * FAR * png_structpp;

@@ -1385,6 +1417,7 @@ extern PNG_EXPORT(void,png_set_gamma) PNGARG((png_structp png_ptr,
 #if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \
    defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED)
 /* Permit or disallow empty PLTE (0: not permitted, 1: permitted) */
+/* Deprecated and will be removed.  Use png_permit_mng_features() instead. */
 extern PNG_EXPORT(void,png_permit_empty_plte) PNGARG((png_structp png_ptr,
   int empty_plte_permitted));
 #endif
@@ -1926,12 +1959,13 @@ extern PNG_EXPORT(void,png_set_hIST) PNGARG((png_structp png_ptr,

 extern PNG_EXPORT(png_uint_32,png_get_IHDR) PNGARG((png_structp png_ptr,
   png_infop info_ptr, png_uint_32 *width, png_uint_32 *height,
-   int *bit_depth, int *color_type, int *interlace_type,
-   int *compression_type, int *filter_type));
+   int *bit_depth, int *color_type, int *interlace_method,
+   int *compression_method, int *filter_method));

 extern PNG_EXPORT(void,png_set_IHDR) PNGARG((png_structp png_ptr,
   png_infop info_ptr, png_uint_32 width, png_uint_32 height, int bit_depth,
-   int color_type, int interlace_type, int compression_type, int filter_type));
+   int color_type, int interlace_method, int compression_method,
+   int filter_method));

 #if defined(PNG_READ_oFFs_SUPPORTED)
 extern PNG_EXPORT(png_uint_32,png_get_oFFs) PNGARG((png_structp png_ptr,
@@ -1999,12 +2033,14 @@ extern PNG_EXPORT(void,png_set_sRGB_gAMA_and_cHRM) PNGARG((png_structp png_ptr,
 extern PNG_EXPORT(png_uint_32,png_get_iCCP) PNGARG((png_structp png_ptr,
   png_infop info_ptr, png_charpp name, int *compression_type,
   png_charpp profile, png_uint_32 *proflen));
+   /* Note to maintainer: profile should be png_bytepp */
 #endif

 #if defined(PNG_iCCP_SUPPORTED)
 extern PNG_EXPORT(void,png_set_iCCP) PNGARG((png_structp png_ptr,
   png_infop info_ptr, png_charp name, int compression_type,
   png_charp profile, png_uint_32 proflen));
+   /* Note to maintainer: profile should be png_bytep */
 #endif

 #if defined(PNG_READ_sPLT_SUPPORTED)
@@ -2115,11 +2151,11 @@ extern PNG_EXPORT(void, png_set_invalid) PNGARG((png_structp png_ptr,
 extern PNG_EXPORT(void, png_read_png) PNGARG((png_structp png_ptr,
                        png_infop info_ptr,
                        int transforms,
-                        voidp params));
+                        png_voidp params));
 extern PNG_EXPORT(void, png_write_png) PNGARG((png_structp png_ptr,
                        png_infop info_ptr,
                        int transforms,
-                        voidp params));
+                        png_voidp params));
 #endif

 /* Define PNG_DEBUG at compile time for debugging information.  Higher
@@ -2131,25 +2167,35 @@ extern PNG_EXPORT(void, png_write_png) PNGARG((png_structp png_ptr,
 #if (PNG_DEBUG > 0)
 #if !defined(PNG_DEBUG_FILE) && defined(_MSC_VER)
 #include <crtdbg.h>
-#define png_debug(l,m) if (PNG_DEBUG > l) _RPT0(_CRT_WARN,m)
-#define png_debug1(l,m,p1) if (PNG_DEBUG > l) _RPT1(_CRT_WARN,m,p1)
-#define png_debug2(l,m,p1,p2) if (PNG_DEBUG > l) _RPT2(_CRT_WARN,m,p1,p2)
+#if (PNG_DEBUG > 1)
+#define png_debug(l,m)  _RPT0(_CRT_WARN,m)
+#define png_debug1(l,m,p1)  _RPT1(_CRT_WARN,m,p1)
+#define png_debug2(l,m,p1,p2) _RPT2(_CRT_WARN,m,p1,p2)
+#endif
 #else /* PNG_DEBUG_FILE || !_MSC_VER */
 #ifndef PNG_DEBUG_FILE
 #define PNG_DEBUG_FILE stderr
 #endif /* PNG_DEBUG_FILE */
+#if (PNG_DEBUG > 1)
 #define png_debug(l,m) \
-   if (PNG_DEBUG > l)  \
-     fprintf(PNG_DEBUG_FILE,"%s"m,(l==1 ? "\t" : \
-       (l==2 ? "\t\t":(l>2 ? "\t\t\t":""))))
+{ \
+     int num_tabs=l; \
+     fprintf(PNG_DEBUG_FILE,"%s"m,(num_tabs==1 ? "\t" : \
+       (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":"")))); \
+}
 #define png_debug1(l,m,p1) \
-   if (PNG_DEBUG > l) \
-     fprintf(PNG_DEBUG_FILE,"%s"m,(l==1 ? "\t" : \
-       (l==2 ? "\t\t":(l>2 ? "\t\t\t":""))),p1)
+{ \
+     int num_tabs=l; \
+     fprintf(PNG_DEBUG_FILE,"%s"m,(num_tabs==1 ? "\t" : \
+       (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1); \
+}
 #define png_debug2(l,m,p1,p2) \
-   if (PNG_DEBUG > l) \
-     fprintf(PNG_DEBUG_FILE,"%s"m,(l==1 ? "\t" : \
-       (l==2 ? "\t\t":(l>2 ? "\t\t\t":""))),p1,p2)
+{ \
+     int num_tabs=l; \
+     fprintf(PNG_DEBUG_FILE,"%s"m,(num_tabs==1 ? "\t" : \
+       (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1,p2); \
+}
+#endif /* (PNG_DEBUG > 1) */
 #endif /* _MSC_VER */
 #endif /* (PNG_DEBUG > 0) */
 #endif /* PNG_DEBUG */
@@ -2170,8 +2216,20 @@ extern PNG_EXPORT(png_charp,png_get_header_ver) PNGARG((png_structp png_ptr));
 extern PNG_EXPORT(png_charp,png_get_header_version) PNGARG((png_structp png_ptr));
 extern PNG_EXPORT(png_charp,png_get_libpng_ver) PNGARG((png_structp png_ptr));

+#ifdef PNG_MNG_FEATURES_SUPPORTED
+extern PNG_EXPORT(png_uint_32,png_permit_mng_features) PNGARG((png_structp
+   png_ptr, png_uint_32 mng_features_permitted));
+#endif
+
+#if 0 /* delay these until version 1.2.0 */
+/* png.c, pnggccrd.c, or pngvcrd.c */
+extern PNG_EXPORT(int,png_mmx_support) PNGARG((void));
+#endif
+
+/* Maintainer: Put new public prototypes here ^, in libpng.3, and project defs */
+
 #define PNG_HEADER_VERSION_STRING \
-   " libpng version 1.0.8beta3 - July 11, 2000 (header)\n"
+   " libpng version 1.0.9 - January 31, 2001 (header)\n"

 #ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED
 /* With these routines we avoid an integer divide, which will be slower on
@@ -2237,6 +2295,7 @@ extern PNG_EXPORT(png_charp,png_get_libpng_ver) PNGARG((png_structp png_ptr));
 #define PNG_WROTE_tIME             0x200
 #define PNG_WROTE_INFO_BEFORE_PLTE 0x400
 #define PNG_BACKGROUND_IS_GRAY     0x800
+#define PNG_HAVE_PNG_SIGNATURE    0x1000

 /* flags for the transformations the PNG library does on the image data */
 #define PNG_BGR                0x0001
@@ -2318,7 +2377,7 @@ extern PNG_EXPORT(png_charp,png_get_libpng_ver) PNGARG((png_structp png_ptr));
 #if !defined(PNG_NO_EXTERN) || defined(PNG_ALWAYS_EXTERN)
 /* place to hold the signature string for a PNG file. */
 #ifdef PNG_USE_GLOBAL_ARRAYS
-   PNG_EXPORT_VAR (png_byte FARDATA) png_sig[8];
+   PNG_EXPORT_VAR (const png_byte FARDATA) png_sig[8];
 #else
 #define png_sig png_sig_bytes(NULL)
 #endif
@@ -2398,7 +2457,7 @@ PNG_EXTERN png_uint_16 png_get_uint_16 PNGARG((png_bytep buf));
 #endif /* !PNG_READ_BIG_ENDIAN_SUPPORTED */

 /* Initialize png_ptr struct for reading, and allocate any other memory.
- * (old interface - DEPRECATED).
+ * (old interface - DEPRECATED - use png_create_read_struct instead).
 */
 extern PNG_EXPORT(void,png_read_init) PNGARG((png_structp png_ptr));
 #define png_read_init(png_ptr) png_read_init_2(png_ptr, \
@@ -2408,7 +2467,7 @@ extern PNG_EXPORT(void,png_read_init_2) PNGARG((png_structp png_ptr,
    png_info_size));

 /* Initialize png_ptr struct for writing, and allocate any other memory.
- * (old interface - DEPRECATED).
+ * (old interface - DEPRECATED - use png_create_write_struct instead).
 */
 extern PNG_EXPORT(void,png_write_init) PNGARG((png_structp png_ptr));
 #define png_write_init(png_ptr) png_write_init_2(png_ptr, \
@@ -2504,8 +2563,8 @@ PNG_EXTERN void png_write_sig PNGARG((png_structp png_ptr));
 */
 PNG_EXTERN void png_write_IHDR PNGARG((png_structp png_ptr, png_uint_32 width,
   png_uint_32 height,
-   int bit_depth, int color_type, int compression_type, int filter_type,
-   int interlace_type));
+   int bit_depth, int color_type, int compression_method, int filter_method,
+   int interlace_method));

 PNG_EXTERN void png_write_PLTE PNGARG((png_structp png_ptr, png_colorp palette,
   png_uint_32 num_pal));
@@ -2555,6 +2614,7 @@ PNG_EXTERN void png_write_sRGB PNGARG((png_structp png_ptr,
 PNG_EXTERN void png_write_iCCP PNGARG((png_structp png_ptr,
   png_charp name, int compression_type,
   png_charp profile, int proflen));
+   /* Note to maintainer: profile should be png_bytep */
 #endif

 #if defined(PNG_WRITE_sPLT_SUPPORTED)
@@ -2649,10 +2709,15 @@ PNG_EXTERN void png_combine_row PNGARG((png_structp png_ptr, png_bytep row,

 #if defined(PNG_READ_INTERLACING_SUPPORTED)
 /* expand an interlaced row */
+/* OLD interface:
 PNG_EXTERN void png_do_read_interlace PNGARG((png_row_infop row_info,
   png_bytep row, int pass, png_uint_32 transformations));
+ */
+PNG_EXTERN void png_do_read_interlace PNGARG((png_structp png_ptr));
 #endif

+/* GRR TO DO (2.0 or whenever):  simplify other internal calling interfaces */
+
 #if defined(PNG_WRITE_INTERLACING_SUPPORTED)
 /* grab pixels out of a row for an interlaced pass */
 PNG_EXTERN void png_do_write_interlace PNGARG((png_row_infop row_info,
@@ -2957,6 +3022,15 @@ PNG_EXTERN void png_push_read_iTXt PNGARG((png_structp png_ptr,

 #endif /* PNG_PROGRESSIVE_READ_SUPPORTED */

+#ifdef PNG_MNG_FEATURES_SUPPORTED
+PNG_EXTERN void png_do_read_intrapixel PNGARG((png_row_infop row_info,
+   png_bytep row));
+PNG_EXTERN void png_do_write_intrapixel PNGARG((png_row_infop row_info,
+   png_bytep row));
+#endif
+
+/* Maintainer: Put new private prototypes here ^ and in libpngpf.3 */
+
 #endif /* PNG_INTERNAL */

 #ifdef __cplusplus
--- a/pngasmrd.h
+++ b/pngasmrd.h
@@ -1,39 +1,11 @@
 /* pngasmrd.h - assembler version of utilities to read a PNG file
 *
- * libpng 1.0.8beta3 - July 11, 2000
+ * libpng 1.0.9 - January 31, 2001
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1999, 2000 Glenn Randers-Pehrson
+ * Copyright (c) 2001 Glenn Randers-Pehrson
 *
 */

-#ifndef PNGASMRD_H
-#define PNGASMRD_H
-
-#ifdef PNG_ASSEMBLER_CODE_SUPPORTED
-
-/* Set this in the makefile for VC++ on Pentium, not in pngconf.h */
-/* Platform must be Pentium.  Makefile must assemble and load pngvcrd.c .
- * MMX will be detected at run time and used if present.
+/* This file is obsolete in libpng-1.0.9 and later; its contents now appear
+ * at the end of pngconf.h.
 */
-#ifdef PNG_USE_PNGVCRD
-#  define PNG_HAVE_ASSEMBLER_COMBINE_ROW
-#  define PNG_HAVE_ASSEMBLER_READ_INTERLACE
-#  define PNG_HAVE_ASSEMBLER_READ_FILTER_ROW
-#endif
-
-/* Set this in the makefile for gcc/as on Pentium, not in pngconf.h */
-/* Platform must be Pentium.  Makefile must assemble and load pnggccrd.c .
- * MMX will be detected at run time and used if present.
- */
-#ifdef PNG_USE_PNGGCCRD
-#  define PNG_HAVE_ASSEMBLER_COMBINE_ROW
-#  define PNG_HAVE_ASSEMBLER_READ_INTERLACE
-#  define PNG_HAVE_ASSEMBLER_READ_FILTER_ROW
-#endif
-/*
-    GRR notes:
-      - see pnggccrd.c for info about what is currently enabled
- */
-
-#endif
-#endif /* PNGASMRD_H */
--- a/pngbar.jpg
+++ b/pngbar.jpg
--- a/pngbar.png
+++ b/pngbar.png
--- a/pngconf.h
+++ b/pngconf.h
@@ -1,8 +1,8 @@
 /* pngconf.h - machine configurable file for libpng
 *
- * libpng 1.0.8beta3 - July 11, 2000
+ * libpng 1.0.9 - January 31, 2001
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2001 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 */
@@ -30,11 +30,11 @@
 */

 #ifndef PNG_ZBUF_SIZE
-#define PNG_ZBUF_SIZE 8192
+#  define PNG_ZBUF_SIZE 8192
 #endif

-#ifndef PNG_NO_FLOATING_POINT_SUPPORTED 
-#define PNG_FLOATING_POINT_SUPPORTED
+#ifndef PNG_NO_FLOATING_POINT_SUPPORTED
+#  define PNG_FLOATING_POINT_SUPPORTED
 #endif

 /* If you are running on a machine where you cannot allocate more
@@ -46,9 +46,68 @@
 #define PNG_MAX_MALLOC_64K
 */
 #if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K)
-#define PNG_MAX_MALLOC_64K
+#  define PNG_MAX_MALLOC_64K
 #endif

+/* Special munging to support doing things the 'cygwin' way:
+ * 'Normal' png-on-win32 defines/defaults:
+ *   PNG_BUILD_DLL -- building dll
+ *   PNG_USE_DLL   -- building an application, linking to dll
+ *   (no define)   -- building static library, or building an
+ *                    application and linking to the static lib
+ * 'Cygwin' defines/defaults:
+ *   PNG_BUILD_DLL -- building the dll
+ *   (no define)   -- building an application, linking to the dll
+ *   PNG_STATIC    -- building the static lib, or building an application
+ *                    that links to the static lib.
+ *   ALL_STATIC    -- building various static libs, or building an application
+ *                    that links to the static libs.
+ * Thus,
+ * a cygwin user should define either PNG_BUILD_DLL or PNG_STATIC, and
+ * this bit of #ifdefs will define the 'correct' config variables based on
+ * that. If a cygwin user *wants* to define 'PNG_USE_DLL' that's okay, but
+ * unnecessary.
+ */
+#if defined(__CYGWIN__)
+#  if defined(PNG_BUILD_DLL)
+#    if defined(PNG_USE_DLL)
+#      undef PNG_USE_DLL
+#    endif
+#    if !defined(PNG_DLL)
+#      define PNG_DLL
+#    endif
+#    if defined(PNG_STATIC)
+#      undef PNG_STATIC
+#    endif
+#  else
+#    if defined(ALL_STATIC)
+#      define PNG_STATIC
+#    endif
+#    if defined(PNG_STATIC)
+#      if defined(PNG_USE_DLL)
+#        undef PNG_USE_DLL
+#      endif
+#      if defined(PNG_DLL)
+#        undef PNG_DLL
+#      endif
+#    else
+#      if defined(PNG_USE_DLL)
+#        if !defined(PNG_DLL)
+#          define PNG_DLL
+#        endif
+#      else
+#        if defined(PNG_DLL)
+#           define PNG_USE_DLL
+#        else
+#           define PNG_USE_DLL
+#           define PNG_DLL
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+
 /* This protects us against compilers that run on a windowing system
 * and thus don't have or would rather us not use the stdio types:
 * stdin, stdout, and stderr.  The only one currently used is stderr
@@ -63,12 +122,12 @@
 */

 #if defined(_WIN32_WCE)
-#include <windows.h>
-/* Console I/O functions are not supported on WindowsCE */
-#define PNG_NO_CONSOLE_IO
-#ifdef PNG_DEBUG
-#  undef PNG_DEBUG
-#endif
+#  include <windows.h>
+   /* Console I/O functions are not supported on WindowsCE */
+#  define PNG_NO_CONSOLE_IO
+#  ifdef PNG_DEBUG
+#    undef PNG_DEBUG
+#  endif
 #endif

 #ifdef PNG_BUILD_DLL
@@ -105,13 +164,13 @@
 #ifndef PNGARG

 #ifdef OF /* zlib prototype munger */
-#define PNGARG(arglist) OF(arglist)
+#  define PNGARG(arglist) OF(arglist)
 #else

 #ifdef _NO_PROTO
-#define PNGARG(arglist) ()
+#  define PNGARG(arglist) ()
 #else
-#define PNGARG(arglist) arglist
+#  define PNGARG(arglist) arglist
 #endif /* _NO_PROTO */

 #endif /* OF */
@@ -123,15 +182,15 @@
 * on non-Mac platforms.
 */
 #ifndef MACOS
-#if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \
-    defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)
-#define MACOS
-#endif
+#  if (defined(__MWERKS__) && defined(macintosh)) || defined(applec) || \
+      defined(THINK_C) || defined(__SC__) || defined(TARGET_OS_MAC)
+#    define MACOS
+#  endif
 #endif

 /* enough people need this for various reasons to include it here */
 #if !defined(MACOS) && !defined(RISCOS) && !defined(_WIN32_WCE)
-#include <sys/types.h>
+#  include <sys/types.h>
 #endif

 #ifndef PNG_SETJMP_NOT_SUPPORTED
@@ -152,10 +211,10 @@
      __png.h__ already includes setjmp.h;
      __dont__ include it again.;
 #    endif
-#endif /* __linux__ */
+#  endif /* __linux__ */

-/* include setjmp.h for error handling */
-#include <setjmp.h>
+   /* include setjmp.h for error handling */
+#  include <setjmp.h>

 #  ifdef __linux__
 #    ifdef PNG_SAVE_BSD_SOURCE
@@ -168,17 +227,18 @@
 #if defined(_AIX) && defined(__xlC__)
 /* This prevents "AIX/xlC" from generating an "index(s,c)" macro in strings.h
 * that conflicts with libpng's png_color_16.index */
-#undef __STR__
+#  undef __STR__
 #endif

 #ifdef BSD
-#include <strings.h>
+#  include <strings.h>
 #else
-#include <string.h>
+#  include <string.h>
 #endif

 /* Other defines for things like memory and the like can go here.  */
 #ifdef PNG_INTERNAL
+
 #include <stdlib.h>

 /* The functions exported by PNG_EXTERN are PNG_INTERNAL functions, which
@@ -195,28 +255,28 @@
 */

 #if defined(PNG_FLOATING_POINT_SUPPORTED)
-#if defined(MACOS)
-/* We need to check that <math.h> hasn't already been included earlier
- * as it seems it doesn't agree with <fp.h>, yet we should really use
- * <fp.h> if possible.
- */
-#if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)
-#include <fp.h>
-#endif
-#else
-#include <math.h>
-#endif
-#if defined(_AMIGA) && defined(__SASC) && defined(_M68881)
-/* Amiga SAS/C: We must include builtin FPU functions when compiling using
- * MATH=68881
- */
-#include <m68881.h>
-#endif
+#  if defined(MACOS)
+     /* We need to check that <math.h> hasn't already been included earlier
+      * as it seems it doesn't agree with <fp.h>, yet we should really use
+      * <fp.h> if possible.
+      */
+#    if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)
+#      include <fp.h>
+#    endif
+#  else
+#    include <math.h>
+#  endif
+#  if defined(_AMIGA) && defined(__SASC) && defined(_M68881)
+     /* Amiga SAS/C: We must include builtin FPU functions when compiling using
+      * MATH=68881
+      */
+#    include <m68881.h>
+#  endif
 #endif

 /* Codewarrior on NT has linking problems without this. */
 #if (defined(__MWERKS__) && defined(WIN32)) || defined(__STDC__)
-#define PNG_ALWAYS_EXTERN
+#  define PNG_ALWAYS_EXTERN
 #endif

 /* For some reason, Borland C++ defines memcmp, etc. in mem.h, not
@@ -224,12 +284,12 @@
 * "feature"?
 */
 #ifdef __TURBOC__
-#include <mem.h>
-#include "alloc.h"
+#  include <mem.h>
+#  include "alloc.h"
 #endif

 #ifdef _MSC_VER
-#include <malloc.h>
+#  include <malloc.h>
 #endif

 /* This controls how fine the dithering gets.  As this allocates
@@ -237,13 +297,13 @@
 * with dithering quality can decrease some or all of these.
 */
 #ifndef PNG_DITHER_RED_BITS
-#define PNG_DITHER_RED_BITS 5
+#  define PNG_DITHER_RED_BITS 5
 #endif
 #ifndef PNG_DITHER_GREEN_BITS
-#define PNG_DITHER_GREEN_BITS 5
+#  define PNG_DITHER_GREEN_BITS 5
 #endif
 #ifndef PNG_DITHER_BLUE_BITS
-#define PNG_DITHER_BLUE_BITS 5
+#  define PNG_DITHER_BLUE_BITS 5
 #endif

 /* This controls how fine the gamma correction becomes when you
@@ -254,14 +314,14 @@
 */

 #ifndef PNG_MAX_GAMMA_8
-#define PNG_MAX_GAMMA_8 11
+#  define PNG_MAX_GAMMA_8 11
 #endif

 /* This controls how much a difference in gamma we can tolerate before
 * we actually start doing gamma conversion.
 */
 #ifndef PNG_GAMMA_THRESHOLD
-#define PNG_GAMMA_THRESHOLD 0.05
+#  define PNG_GAMMA_THRESHOLD 0.05
 #endif

 #endif /* PNG_INTERNAL */
@@ -326,158 +386,169 @@
 */

 #ifdef PNG_LEGACY_SUPPORTED
-#define PNG_NO_FREE_ME
-#define PNG_NO_READ_UNKNOWN_CHUNKS
-#define PNG_NO_WRITE_UNKNOWN_CHUNKS
-#define PNG_NO_READ_USER_CHUNKS
-#define PNG_NO_READ_iCCP
-#define PNG_NO_WRITE_iCCP
-#define PNG_NO_READ_iTXt
-#define PNG_NO_WRITE_iTXt
-#define PNG_NO_READ_sCAL
-#define PNG_NO_WRITE_sCAL
-#define PNG_NO_READ_sPLT
-#define PNG_NO_WRITE_sPLT
-#define PNG_NO_INFO_IMAGE
-#define PNG_NO_READ_RGB_TO_GRAY
-#define PNG_NO_READ_USER_TRANSFORM
-#define PNG_NO_WRITE_USER_TRANSFORM
-#define PNG_NO_USER_MEM
-#define PNG_NO_READ_EMPTY_PLTE
-#define PNG_NO_FIXED_POINT_SUPPORTED
+#  define PNG_NO_FREE_ME
+#  define PNG_NO_READ_UNKNOWN_CHUNKS
+#  define PNG_NO_WRITE_UNKNOWN_CHUNKS
+#  define PNG_NO_READ_USER_CHUNKS
+#  define PNG_NO_READ_iCCP
+#  define PNG_NO_WRITE_iCCP
+#  define PNG_NO_READ_iTXt
+#  define PNG_NO_WRITE_iTXt
+#  define PNG_NO_READ_sCAL
+#  define PNG_NO_WRITE_sCAL
+#  define PNG_NO_READ_sPLT
+#  define PNG_NO_WRITE_sPLT
+#  define PNG_NO_INFO_IMAGE
+#  define PNG_NO_READ_RGB_TO_GRAY
+#  define PNG_NO_READ_USER_TRANSFORM
+#  define PNG_NO_WRITE_USER_TRANSFORM
+#  define PNG_NO_USER_MEM
+#  define PNG_NO_READ_EMPTY_PLTE
+#  define PNG_NO_MNG_FEATURES
+#  define PNG_NO_FIXED_POINT_SUPPORTED
 #endif

 /* Ignore attempt to turn off both floating and fixed point support */
 #if !defined(PNG_FLOATING_POINT_SUPPORTED) || \
- !defined(PNG_NO_FIXED_POINT_SUPPORTED)
-#define PNG_FIXED_POINT_SUPPORTED
+    !defined(PNG_NO_FIXED_POINT_SUPPORTED)
+#  define PNG_FIXED_POINT_SUPPORTED
 #endif

 #ifndef PNG_NO_FREE_ME
-#define PNG_FREE_ME_SUPPORTED
+#  define PNG_FREE_ME_SUPPORTED
 #endif

 #if !defined(PNG_READ_TRANSFORMS_NOT_SUPPORTED) && \
    !defined(PNG_NO_READ_TRANSFORMS)
-#define PNG_READ_TRANSFORMS_SUPPORTED
+#  define PNG_READ_TRANSFORMS_SUPPORTED
 #endif
 #if !defined(PNG_WRITE_TRANSFORMS_NOT_SUPPORTED) && \
    !defined(PNG_NO_WRITE_TRANSFORMS)
-#define PNG_WRITE_TRANSFORMS_SUPPORTED
+#  define PNG_WRITE_TRANSFORMS_SUPPORTED
 #endif

 #ifdef PNG_READ_TRANSFORMS_SUPPORTED
-#ifndef PNG_NO_READ_EXPAND
-#define PNG_READ_EXPAND_SUPPORTED
-#endif
-#ifndef PNG_NO_READ_SHIFT
-#define PNG_READ_SHIFT_SUPPORTED
-#endif
-#ifndef PNG_NO_READ_PACK
-#define PNG_READ_PACK_SUPPORTED
-#endif
-#ifndef PNG_NO_READ_BGR
-#define PNG_READ_BGR_SUPPORTED
-#endif
-#ifndef PNG_NO_READ_SWAP
-#define PNG_READ_SWAP_SUPPORTED
-#endif
-#ifndef PNG_NO_READ_PACKSWAP
-#define PNG_READ_PACKSWAP_SUPPORTED
-#endif
-#ifndef PNG_NO_READ_INVERT
-#define PNG_READ_INVERT_SUPPORTED
-#endif
-#ifndef PNG_NO_READ_DITHER
-#define PNG_READ_DITHER_SUPPORTED
-#endif
-#ifndef PNG_NO_READ_BACKGROUND
-#define PNG_READ_BACKGROUND_SUPPORTED
-#endif
-#ifndef PNG_NO_READ_16_TO_8
-#define PNG_READ_16_TO_8_SUPPORTED
-#endif
-#ifndef PNG_NO_READ_FILLER
-#define PNG_READ_FILLER_SUPPORTED
-#endif
-#ifndef PNG_NO_READ_GAMMA
-#define PNG_READ_GAMMA_SUPPORTED
-#endif
-#ifndef PNG_NO_READ_GRAY_TO_RGB
-#define PNG_READ_GRAY_TO_RGB_SUPPORTED
-#endif
-#ifndef PNG_NO_READ_SWAP_ALPHA
-#define PNG_READ_SWAP_ALPHA_SUPPORTED
-#endif
-#ifndef PNG_NO_READ_INVERT_ALPHA
-#define PNG_READ_INVERT_ALPHA_SUPPORTED
-#endif
-#ifndef PNG_NO_READ_STRIP_ALPHA
-#define PNG_READ_STRIP_ALPHA_SUPPORTED
-#endif
-#ifndef PNG_NO_READ_USER_TRANSFORM
-#define PNG_READ_USER_TRANSFORM_SUPPORTED
-#endif
-#ifndef PNG_NO_READ_RGB_TO_GRAY
-#define PNG_READ_RGB_TO_GRAY_SUPPORTED
-#endif
+#  ifndef PNG_NO_READ_EXPAND
+#    define PNG_READ_EXPAND_SUPPORTED
+#  endif
+#  ifndef PNG_NO_READ_SHIFT
+#    define PNG_READ_SHIFT_SUPPORTED
+#  endif
+#  ifndef PNG_NO_READ_PACK
+#    define PNG_READ_PACK_SUPPORTED
+#  endif
+#  ifndef PNG_NO_READ_BGR
+#    define PNG_READ_BGR_SUPPORTED
+#  endif
+#  ifndef PNG_NO_READ_SWAP
+#    define PNG_READ_SWAP_SUPPORTED
+#  endif
+#  ifndef PNG_NO_READ_PACKSWAP
+#    define PNG_READ_PACKSWAP_SUPPORTED
+#  endif
+#  ifndef PNG_NO_READ_INVERT
+#    define PNG_READ_INVERT_SUPPORTED
+#  endif
+#  ifndef PNG_NO_READ_DITHER
+#    define PNG_READ_DITHER_SUPPORTED
+#  endif
+#  ifndef PNG_NO_READ_BACKGROUND
+#    define PNG_READ_BACKGROUND_SUPPORTED
+#  endif
+#  ifndef PNG_NO_READ_16_TO_8
+#    define PNG_READ_16_TO_8_SUPPORTED
+#  endif
+#  ifndef PNG_NO_READ_FILLER
+#    define PNG_READ_FILLER_SUPPORTED
+#  endif
+#  ifndef PNG_NO_READ_GAMMA
+#    define PNG_READ_GAMMA_SUPPORTED
+#  endif
+#  ifndef PNG_NO_READ_GRAY_TO_RGB
+#    define PNG_READ_GRAY_TO_RGB_SUPPORTED
+#  endif
+#  ifndef PNG_NO_READ_SWAP_ALPHA
+#    define PNG_READ_SWAP_ALPHA_SUPPORTED
+#  endif
+#  ifndef PNG_NO_READ_INVERT_ALPHA
+#    define PNG_READ_INVERT_ALPHA_SUPPORTED
+#  endif
+#  ifndef PNG_NO_READ_STRIP_ALPHA
+#    define PNG_READ_STRIP_ALPHA_SUPPORTED
+#  endif
+#  ifndef PNG_NO_READ_USER_TRANSFORM
+#    define PNG_READ_USER_TRANSFORM_SUPPORTED
+#  endif
+#  ifndef PNG_NO_READ_RGB_TO_GRAY
+#    define PNG_READ_RGB_TO_GRAY_SUPPORTED
+#  endif
 #endif /* PNG_READ_TRANSFORMS_SUPPORTED */

 #if !defined(PNG_NO_PROGRESSIVE_READ) && \
- !defined(PNG_PROGRESSIVE_READ_NOT_SUPPORTED) /* if you don't do progressive   */
-#define PNG_PROGRESSIVE_READ_SUPPORTED       /* reading.  This is not talking */
+ !defined(PNG_PROGRESSIVE_READ_NOT_SUPPORTED)  /* if you don't do progressive */
+#  define PNG_PROGRESSIVE_READ_SUPPORTED     /* reading.  This is not talking */
 #endif                               /* about interlacing capability!  You'll */
              /* still have interlacing unless you change the following line: */
+
 #define PNG_READ_INTERLACING_SUPPORTED /* required for PNG-compliant decoders */

 #ifndef PNG_NO_READ_COMPOSITE_NODIV
-#ifndef PNG_NO_READ_COMPOSITED_NODIV  /* libpng-1.0.x misspelling */
-#define PNG_READ_COMPOSITE_NODIV_SUPPORTED    /* well tested on Intel and SGI */
-#endif
+#  ifndef PNG_NO_READ_COMPOSITED_NODIV  /* libpng-1.0.x misspelling */
+#    define PNG_READ_COMPOSITE_NODIV_SUPPORTED   /* well tested on Intel, SGI */
+#  endif
 #endif

+/* Enable if you need to support PNGs that are embedded in MNG
+   datastreams */
+/*
+#ifndef PNG_NO_MNG_FEATURES
+#  define PNG_MNG_FEATURES_SUPPORTED
+#endif
+*/
+
+/* Deprecated, will be removed from version 2.0.0 */
 #ifndef PNG_NO_READ_EMPTY_PLTE
-#define PNG_READ_EMPTY_PLTE_SUPPORTED  /* useful for MNG applications */
+#  define PNG_READ_EMPTY_PLTE_SUPPORTED
 #endif

 #ifdef PNG_WRITE_TRANSFORMS_SUPPORTED
-#ifndef PNG_NO_WRITE_SHIFT
-#define PNG_WRITE_SHIFT_SUPPORTED
-#endif
-#ifndef PNG_NO_WRITE_PACK
-#define PNG_WRITE_PACK_SUPPORTED
-#endif
-#ifndef PNG_NO_WRITE_BGR
-#define PNG_WRITE_BGR_SUPPORTED
-#endif
-#ifndef PNG_NO_WRITE_SWAP
-#define PNG_WRITE_SWAP_SUPPORTED
-#endif
-#ifndef PNG_NO_WRITE_PACKSWAP
-#define PNG_WRITE_PACKSWAP_SUPPORTED
-#endif
-#ifndef PNG_NO_WRITE_INVERT
-#define PNG_WRITE_INVERT_SUPPORTED
-#endif
-#ifndef PNG_NO_WRITE_FILLER
-#define PNG_WRITE_FILLER_SUPPORTED  /* This is the same as WRITE_STRIP_ALPHA */
-#endif
-#ifndef PNG_NO_WRITE_SWAP_ALPHA
-#define PNG_WRITE_SWAP_ALPHA_SUPPORTED
-#endif
-#ifndef PNG_NO_WRITE_INVERT_ALPHA
-#define PNG_WRITE_INVERT_ALPHA_SUPPORTED
-#endif
-#ifndef PNG_NO_WRITE_USER_TRANSFORM
-#define PNG_WRITE_USER_TRANSFORM_SUPPORTED
-#endif
+#  ifndef PNG_NO_WRITE_SHIFT
+#    define PNG_WRITE_SHIFT_SUPPORTED
+#  endif
+#  ifndef PNG_NO_WRITE_PACK
+#    define PNG_WRITE_PACK_SUPPORTED
+#  endif
+#  ifndef PNG_NO_WRITE_BGR
+#    define PNG_WRITE_BGR_SUPPORTED
+#  endif
+#  ifndef PNG_NO_WRITE_SWAP
+#    define PNG_WRITE_SWAP_SUPPORTED
+#  endif
+#  ifndef PNG_NO_WRITE_PACKSWAP
+#    define PNG_WRITE_PACKSWAP_SUPPORTED
+#  endif
+#  ifndef PNG_NO_WRITE_INVERT
+#    define PNG_WRITE_INVERT_SUPPORTED
+#  endif
+#  ifndef PNG_NO_WRITE_FILLER
+#    define PNG_WRITE_FILLER_SUPPORTED   /* same as WRITE_STRIP_ALPHA */
+#  endif
+#  ifndef PNG_NO_WRITE_SWAP_ALPHA
+#    define PNG_WRITE_SWAP_ALPHA_SUPPORTED
+#  endif
+#  ifndef PNG_NO_WRITE_INVERT_ALPHA
+#    define PNG_WRITE_INVERT_ALPHA_SUPPORTED
+#  endif
+#  ifndef PNG_NO_WRITE_USER_TRANSFORM
+#    define PNG_WRITE_USER_TRANSFORM_SUPPORTED
+#  endif
 #endif /* PNG_WRITE_TRANSFORMS_SUPPORTED */

 #if defined(PNG_READ_USER_TRANSFORM_SUPPORTED) || \
-defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
-#ifndef PNG_NO_USER_TRANSFORM_PTR
-#define PNG_USER_TRANSFORM_PTR_SUPPORTED
-#endif
+    defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
+#  ifndef PNG_NO_USER_TRANSFORM_PTR
+#    define PNG_USER_TRANSFORM_PTR_SUPPORTED
+#  endif
 #endif

 #define PNG_WRITE_INTERLACING_SUPPORTED  /* not required for PNG-compliant
@@ -486,19 +557,20 @@ defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)

 #if !defined(PNG_NO_WRITE_WEIGHTED_FILTER) && \
     defined(PNG_FLOATING_POINT_SUPPORTED)
-#define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
+#  define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
 #endif

 #ifndef PNG_NO_WRITE_FLUSH
-#define PNG_WRITE_FLUSH_SUPPORTED
+#  define PNG_WRITE_FLUSH_SUPPORTED
 #endif

+/* Deprecated, see PNG_MNG_FEATURES_SUPPORTED, above */
 #ifndef PNG_NO_WRITE_EMPTY_PLTE
-#define PNG_WRITE_EMPTY_PLTE_SUPPORTED  /* useful for MNG applications */
+#  define PNG_WRITE_EMPTY_PLTE_SUPPORTED
 #endif

 #ifndef PNG_NO_STDIO
-#define PNG_TIME_RFC1123_SUPPORTED
+#  define PNG_TIME_RFC1123_SUPPORTED
 #endif

 /* This adds extra functions in pngget.c for accessing data from the
@@ -518,12 +590,16 @@ defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
 * png_get_y_offset_microns()
 */
 #ifndef PNG_NO_EASY_ACCESS
-#define PNG_EASY_ACCESS_SUPPORTED
+#  define PNG_EASY_ACCESS_SUPPORTED
 #endif

-#if defined(PNG_USE_PNGVCRD) || defined(PNG_USE_PNGGCCRD) && \
-  !defined(PNG_NO_ASSEMBLER_CODE)
-#define PNG_ASSEMBLER_CODE_SUPPORTED
+/* PNG_ASSEMBLER_CODE will be enabled by default in version 1.2.0 
+   even when PNG_USE_PNGVCRD or PNG_USE_PNGGCCRD is not defined */
+#ifndef PNG_NO_ASSEMBLER_CODE
+#  if defined(PNG_USE_PNGVCRD) || defined(PNG_USE_PNGGCCRD)
+#    define PNG_ASSEMBLER_CODE_SUPPORTED
+#    define PNG_MMX_CODE_SUPPORTED
+#  endif
 #endif

 /* These are currently experimental features, define them if you want */
@@ -532,7 +608,10 @@ defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
 /*
 #define PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED
 #ifndef PNG_NO_USER_MEM
-#define PNG_USER_MEM_SUPPORTED
+#  define PNG_USER_MEM_SUPPORTED
+#endif
+#ifndef PNG_NO_ZALLOC_ZERO
+#  define PNG_ZALLOC_ZERO
 #endif
 */

@@ -561,11 +640,11 @@ defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)

 #if !defined(PNG_READ_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
    !defined(PNG_NO_READ_ANCILLARY_CHUNKS)
-#define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
+#  define PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
 #endif
 #if !defined(PNG_WRITE_ANCILLARY_CHUNKS_NOT_SUPPORTED) && \
    !defined(PNG_NO_WRITE_ANCILLARY_CHUNKS)
-#define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
+#  define PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
 #endif

 #ifdef PNG_READ_ANCILLARY_CHUNKS_SUPPORTED
@@ -667,13 +746,15 @@ defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
 #  define PNG_READ_OPT_PLTE_SUPPORTED /* only affects support of the */
 #endif                      /* optional PLTE chunk in RGB and RGBA images */
 #if defined(PNG_READ_iTXt_SUPPORTED) || defined(PNG_READ_tEXt_SUPPORTED) || \
-  defined(PNG_READ_zTXt_SUPPORTED)
+    defined(PNG_READ_zTXt_SUPPORTED)
 #  define PNG_READ_TEXT_SUPPORTED
 #  define PNG_TEXT_SUPPORTED
 #endif
+
 #endif /* PNG_READ_ANCILLARY_CHUNKS_SUPPORTED */

 #ifdef PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED
+
 #ifdef PNG_NO_WRITE_TEXT
 #  define PNG_NO_WRITE_iTXt
 #  define PNG_NO_WRITE_tEXt
@@ -793,12 +874,13 @@ defined(PNG_WRITE_USER_TRANSFORM_SUPPORTED)
 #  endif
 #endif
 #if defined(PNG_WRITE_iTXt_SUPPORTED) || defined(PNG_WRITE_tEXt_SUPPORTED) || \
-  defined(PNG_WRITE_zTXt_SUPPORTED)
+    defined(PNG_WRITE_zTXt_SUPPORTED)
 #  define PNG_WRITE_TEXT_SUPPORTED
 #  ifndef PNG_TEXT_SUPPORTED
 #    define PNG_TEXT_SUPPORTED
 #  endif
 #endif
+
 #endif /* PNG_WRITE_ANCILLARY_CHUNKS_SUPPORTED */

 /* Turn this off to disable png_read_png() and
@@ -848,28 +930,26 @@ typedef size_t png_size_t;
 /* Separate compiler dependencies (problem here is that zlib.h always
   defines FAR. (SJT) */
 #ifdef __BORLANDC__
-#if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__)
-#define LDATA 1
-#else
-#define LDATA 0
-#endif
-
-#if !defined(__WIN32__) && !defined(__FLAT__)
-#define PNG_MAX_MALLOC_64K
-#if (LDATA != 1)
-#ifndef FAR
-#define FAR __far
-#endif
-#define USE_FAR_KEYWORD
-#endif   /* LDATA != 1 */
-
-/* Possibly useful for moving data out of default segment.
- * Uncomment it if you want. Could also define FARDATA as
- * const if your compiler supports it. (SJT)
-#  define FARDATA FAR
- */
-#endif  /* __WIN32__, __FLAT__ */
-
+#  if defined(__LARGE__) || defined(__HUGE__) || defined(__COMPACT__)
+#    define LDATA 1
+#  else
+#    define LDATA 0
+#  endif
+   /* GRR:  why is Cygwin in here?  Cygwin is not Borland C... */
+#  if !defined(__WIN32__) && !defined(__FLAT__) && !defined(__CYGWIN__)
+#    define PNG_MAX_MALLOC_64K
+#    if (LDATA != 1)
+#      ifndef FAR
+#        define FAR __far
+#      endif
+#      define USE_FAR_KEYWORD
+#    endif   /* LDATA != 1 */
+     /* Possibly useful for moving data out of default segment.
+      * Uncomment it if you want. Could also define FARDATA as
+      * const if your compiler supports it. (SJT)
+#    define FARDATA FAR
+      */
+#  endif  /* __WIN32__, __FLAT__, __CYGWIN__ */
 #endif   /* __BORLANDC__ */


@@ -881,20 +961,20 @@ typedef size_t png_size_t;
 /* MSC Medium model */
 #if defined(FAR)
 #  if defined(M_I86MM)
-#     define USE_FAR_KEYWORD
-#     define FARDATA FAR
-#     include <dos.h>
+#    define USE_FAR_KEYWORD
+#    define FARDATA FAR
+#    include <dos.h>
 #  endif
 #endif

 /* SJT: default case */
 #ifndef FAR
-#   define FAR
+#  define FAR
 #endif

 /* At this point FAR is always defined */
 #ifndef FARDATA
-#define FARDATA
+#  define FARDATA
 #endif

 /* Typedef for floating-point numbers that are converted
@@ -911,11 +991,15 @@ typedef png_int_16      FAR * png_int_16p;
 typedef PNG_CONST char  FAR * png_const_charp;
 typedef char            FAR * png_charp;
 typedef png_fixed_point FAR * png_fixed_point_p;
+
+#ifndef PNG_NO_STDIO
 #if defined(_WIN32_WCE)
 typedef HANDLE                png_FILE_p;
 #else
 typedef FILE                * png_FILE_p;
 #endif
+#endif
+
 #ifdef PNG_FLOATING_POINT_SUPPORTED
 typedef double          FAR * png_doublep;
 #endif
@@ -933,7 +1017,7 @@ typedef png_fixed_point FAR * FAR * png_fixed_point_pp;
 typedef double          FAR * FAR * png_doublepp;
 #endif

-/* Pointers to pointers to pointers; i.e. pointer to array */
+/* Pointers to pointers to pointers; i.e., pointer to array */
 typedef char            FAR * FAR * FAR * png_charppp;

 /* libpng typedefs for types in zlib. If zlib changes
@@ -949,14 +1033,45 @@ typedef z_stream FAR *  png_zstreamp;
 * LIBPNG DLL.
 *
 * Define PNG_USE_DLL if you want to *link* to the Windows LIBPNG DLL.
- * It is equivalent to Microsoft predefined macro _DLL which is
+ * It is equivalent to Microsoft predefined macro _DLL that is
 * automatically defined when you compile using the share
 * version of the CRT (C Run-Time library)
+ *
+ * The cygwin mods make this behavior a little different:
+ * Define PNG_BUILD_DLL if you are building a dll for use with cygwin
+ * Define PNG_STATIC if you are building a static library for use with cygwin,
+ *   -or- if you are building an application that you want to link to the
+ *   static library.
+ * PNG_USE_DLL is defined by default (no user action needed) unless one of
+ *   the other flags is defined.
 */

 #if !defined(PNG_DLL) && (defined(PNG_BUILD_DLL) || defined(PNG_USE_DLL))
 #  define PNG_DLL
 #endif
+/* If CYGWIN, then disallow GLOBAL ARRAYS unless building a static lib.
+ * When building a static lib, default to no GLOBAL ARRAYS, but allow
+ * command-line override
+ */
+#if defined(__CYGWIN__)
+#  if !defined(PNG_STATIC)
+#    if defined(PNG_USE_GLOBAL_ARRAYS)
+#      undef PNG_USE_GLOBAL_ARRAYS
+#    endif
+#    if !defined(PNG_USE_LOCAL_ARRAYS)
+#      define PNG_USE_LOCAL_ARRAYS
+#    endif
+#  else
+#    if defined(PNG_USE_LOCAL_ARRAYS) || defined(PNG_NO_GLOBAL_ARRAYS)
+#      if defined(PNG_USE_GLOBAL_ARRAYS)
+#        undef PNG_USE_GLOBAL_ARRAYS
+#      endif
+#    endif
+#  endif
+#  if !defined(PNG_USE_LOCAL_ARRAYS) && !defined(PNG_USE_GLOBAL_ARRAYS)
+#    define PNG_USE_LOCAL_ARRAYS
+#  endif
+#endif

 /* Do not use global arrays (helps with building DLL's)
 * They are no longer used in libpng itself, since version 1.0.5c,
@@ -970,9 +1085,10 @@ typedef z_stream FAR *  png_zstreamp;
 #  endif
 #endif

+
 #ifndef PNGAPI

-#if defined(__MINGW32__) || defined(__CYGWIN32__) && !defined(PNG_MODULEDEF)
+#if defined(__MINGW32__) || defined(__CYGWIN__) && !defined(PNG_MODULEDEF)
 #  ifndef PNG_NO_MODULEDEF
 #    define PNG_NO_MODULEDEF
 #  endif
@@ -983,10 +1099,11 @@ typedef z_stream FAR *  png_zstreamp;
 #endif

 #if defined(PNG_DLL) || defined(_DLL) || defined(__DLL__ ) || \
-    defined(_Windows) || defined(_WINDOWS) || \
-    defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
+    (( defined(_Windows) || defined(_WINDOWS) || \
+       defined(WIN32) || defined(_WIN32) || defined(__WIN32__) \
+	  ) && !defined(__CYGWIN__))

-#  ifdef __GNUC__
+#  if defined(__GNUC__) || (defined (_MSC_VER) && (_MSC_VER >= 800))
 #    define PNGAPI __cdecl
 #  else
 #    define PNGAPI _cdecl
@@ -1026,23 +1143,37 @@ typedef z_stream FAR *  png_zstreamp;
 #        endif
 #     endif
 #  endif  /* PNG_IMPEXP */
-#else /* !(DLL || WINDOWS) */
-#  if 0 /* ... other platforms, with other meanings */
+#else /* !(DLL || non-cygwin WINDOWS) */
+#  if defined(__CYGWIN__) && !defined(PNG_DLL)
+#    if !defined(PNG_IMPEXP)
+#      define PNG_IMPEXP
+#    endif
+#    define PNGAPI __cdecl
 #  else
-#     define PNGAPI
-#     define PNG_IMPEXP
+#    if 0 /* ... other platforms, with other meanings */
+#    else
+#       define PNGAPI
+#       define PNG_IMPEXP
+#    endif
 #  endif
 #endif
 #endif

+#ifndef PNGAPI
+#  define PNGAPI
+#endif
+#ifndef PNG_IMPEXP
+#  define PNG_IMPEXP
+#endif
+
 #ifndef PNG_EXPORT
 #  define PNG_EXPORT(type,symbol) PNG_IMPEXP type PNGAPI symbol
 #endif

 #ifdef PNG_USE_GLOBAL_ARRAYS
-#ifndef PNG_EXPORT_VAR
-#  define PNG_EXPORT_VAR(type) extern PNG_IMPEXP type
-#endif
+#  ifndef PNG_EXPORT_VAR
+#    define PNG_EXPORT_VAR(type) extern PNG_IMPEXP type
+#  endif
 #endif

 /* User may want to use these so they are not in PNG_INTERNAL. Any library
@@ -1050,35 +1181,35 @@ typedef z_stream FAR *  png_zstreamp;
 */

 #ifndef PNG_ABORT
-#   define PNG_ABORT() abort()
+#  define PNG_ABORT() abort()
 #endif

 #ifdef PNG_SETJMP_SUPPORTED
-#   define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf)
+#  define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf)
 #else
-#   define png_jmpbuf(png_ptr) \
-    (LIBPNG_WAS_COMPILED_WITH__PNG_SETJMP_NOT_SUPPORTED)
+#  define png_jmpbuf(png_ptr) \
+   (LIBPNG_WAS_COMPILED_WITH__PNG_SETJMP_NOT_SUPPORTED)
 #endif

 #if defined(USE_FAR_KEYWORD)  /* memory model independent fns */
 /* use this to make far-to-near assignments */
-#   define CHECK   1
-#   define NOCHECK 0
-#   define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK))
-#   define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK))
-#   define png_strcpy _fstrcpy
-#   define png_strlen _fstrlen
-#   define png_memcmp _fmemcmp      /* SJT: added */
-#   define png_memcpy _fmemcpy
-#   define png_memset _fmemset
+#  define CHECK   1
+#  define NOCHECK 0
+#  define CVT_PTR(ptr) (png_far_to_near(png_ptr,ptr,CHECK))
+#  define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK))
+#  define png_strcpy _fstrcpy
+#  define png_strlen _fstrlen
+#  define png_memcmp _fmemcmp      /* SJT: added */
+#  define png_memcpy _fmemcpy
+#  define png_memset _fmemset
 #else /* use the usual functions */
-#   define CVT_PTR(ptr)         (ptr)
-#   define CVT_PTR_NOCHECK(ptr) (ptr)
-#   define png_strcpy strcpy
-#   define png_strlen strlen
-#   define png_memcmp memcmp     /* SJT: added */
-#   define png_memcpy memcpy
-#   define png_memset memset
+#  define CVT_PTR(ptr)         (ptr)
+#  define CVT_PTR_NOCHECK(ptr) (ptr)
+#  define png_strcpy strcpy
+#  define png_strlen strlen
+#  define png_memcmp memcmp     /* SJT: added */
+#  define png_memcpy memcpy
+#  define png_memset memset
 #endif
 /* End of memory model independent support */

@@ -1086,9 +1217,48 @@ typedef z_stream FAR *  png_zstreamp;
 * contradictory.
 */
 #if (PNG_ZBUF_SIZE > 65536) && defined(PNG_MAX_MALLOC_64K)
-#undef PNG_ZBUF_SIZE
-#define PNG_ZBUF_SIZE 65536
+#  undef PNG_ZBUF_SIZE
+#  define PNG_ZBUF_SIZE 65536
 #endif

+/* Prior to libpng-1.0.9, this block was in pngasmrd.h */
+#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_INTERNAL)
+
+/* These are the default thresholds before the MMX code kicks in; if either
+ * rowbytes or bitdepth is below the threshold, plain C code is used.  These
+ * can be overridden at runtime via the png_set_mmx_thresholds() call in
+ * libpng 1.2.0 and later.  The values below were chosen by Intel.
+ */
+
+#ifndef PNG_MMX_ROWBYTES_THRESHOLD_DEFAULT
+#  define PNG_MMX_ROWBYTES_THRESHOLD_DEFAULT  128  /*  >=  */
+#endif
+#ifndef PNG_MMX_BITDEPTH_THRESHOLD_DEFAULT
+#  define PNG_MMX_BITDEPTH_THRESHOLD_DEFAULT  9    /*  >=  */   
+#endif
+
+/* Set this in the makefile for VC++ on Pentium, not here. */
+/* Platform must be Pentium.  Makefile must assemble and load pngvcrd.c .
+ * MMX will be detected at run time and used if present.
+ */
+#ifdef PNG_USE_PNGVCRD
+#  define PNG_HAVE_ASSEMBLER_COMBINE_ROW
+#  define PNG_HAVE_ASSEMBLER_READ_INTERLACE
+#  define PNG_HAVE_ASSEMBLER_READ_FILTER_ROW
+#endif
+
+/* Set this in the makefile for gcc/as on Pentium, not here. */
+/* Platform must be Pentium.  Makefile must assemble and load pnggccrd.c .
+ * MMX will be detected at run time and used if present.
+ */
+#ifdef PNG_USE_PNGGCCRD
+#  define PNG_HAVE_ASSEMBLER_COMBINE_ROW
+#  define PNG_HAVE_ASSEMBLER_READ_INTERLACE
+#  define PNG_HAVE_ASSEMBLER_READ_FILTER_ROW
+#endif
+/* - see pnggccrd.c for info about what is currently enabled */
+
+#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
+
 #endif /* PNGCONF_H */

--- a/pngerror.c
+++ b/pngerror.c
@@ -1,9 +1,9 @@

 /* pngerror.c - stub functions for i/o and memory allocation
 *
- * libpng 1.0.8beta3 - July 11, 2000
+ * libpng 1.0.9 - January 31, 2001
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2001 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
@@ -99,7 +99,7 @@ png_format_buffer(png_structp png_ptr, png_charp buffer, png_const_charp message
 void PNGAPI
 png_chunk_error(png_structp png_ptr, png_const_charp message)
 {
-   char msg[16+64];
+   char msg[18+64];
   png_format_buffer(png_ptr, msg, message);
   png_error(png_ptr, msg);
 }
--- a/pnggccrd.c
+++ b/pnggccrd.c
--- a/pngget.c
+++ b/pngget.c
@@ -1,9 +1,9 @@

 /* pngget.c - retrieval of values from info struct
 *
- * libpng 1.0.8beta3 - July 11, 2000
+ * libpng 1.0.9 - January 31, 2001
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2001 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 */
@@ -807,7 +807,7 @@ png_get_unknown_chunks(png_structp png_ptr, png_infop info_ptr,
 png_byte PNGAPI
 png_get_rgb_to_gray_status (png_structp png_ptr)
 {
-   return png_ptr->rgb_to_gray_status;
+   return (png_byte)(png_ptr? png_ptr->rgb_to_gray_status : 0);
 }
 #endif

@@ -815,7 +815,7 @@ png_get_rgb_to_gray_status (png_structp png_ptr)
 png_voidp PNGAPI
 png_get_user_chunk_ptr(png_structp png_ptr)
 {
-   return (png_ptr->user_chunk_ptr);
+   return (png_ptr? png_ptr->user_chunk_ptr : NULL);
 }
 #endif

@@ -823,5 +823,6 @@ png_get_user_chunk_ptr(png_structp png_ptr)
 png_uint_32 PNGAPI
 png_get_compression_buffer_size(png_structp png_ptr)
 {
-   return(png_ptr->zbuf_size);
+   return (png_uint_32)(png_ptr? png_ptr->zbuf_size : 0L);
 }
+
--- a/pngmem.c
+++ b/pngmem.c
@@ -1,9 +1,9 @@

 /* pngmem.c - stub functions for memory allocation
 *
- * libpng 1.0.8beta3 - July 11, 2000
+ * libpng 1.0.9 - January 31, 2001
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2001 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
--- a/pngpread.c
+++ b/pngpread.c
@@ -1,9 +1,9 @@

 /* pngpread.c - read a png file in push mode
 *
- * libpng 1.0.8beta3 - July 11, 2000
+ * libpng 1.0.9 - January 31, 2001
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2001 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 */
@@ -772,18 +772,29 @@ png_push_process_row(png_structp png_ptr)
   if (png_ptr->interlaced && (png_ptr->transformations & PNG_INTERLACE))
   {
      if (png_ptr->pass < 6)
+/*       old interface (pre-1.0.9):
         png_do_read_interlace(&(png_ptr->row_info),
            png_ptr->row_buf + 1, png_ptr->pass, png_ptr->transformations);
+ */
+         png_do_read_interlace(png_ptr);

-      switch (png_ptr->pass)
-      {
+    switch (png_ptr->pass)
+    {
         case 0:
         {
            int i;
            for (i = 0; i < 8 && png_ptr->pass == 0; i++)
            {
               png_push_have_row(png_ptr, png_ptr->row_buf + 1);
-               png_read_push_finish_row(png_ptr);
+               png_read_push_finish_row(png_ptr); /* updates png_ptr->pass */
+            }
+            if (png_ptr->pass == 2) /* pass 1 might be empty */
+            {
+               for (i = 0; i < 4 && png_ptr->pass == 2; i++)
+               {
+                  png_push_have_row(png_ptr, NULL);
+                  png_read_push_finish_row(png_ptr);
+               }
            }
            break;
         }
@@ -795,7 +806,7 @@ png_push_process_row(png_structp png_ptr)
               png_push_have_row(png_ptr, png_ptr->row_buf + 1);
               png_read_push_finish_row(png_ptr);
            }
-            if (png_ptr->pass == 2)
+            if (png_ptr->pass == 2) /* skip top 4 generated rows */
            {
               for (i = 0; i < 4 && png_ptr->pass == 2; i++)
               {
@@ -818,6 +829,14 @@ png_push_process_row(png_structp png_ptr)
               png_push_have_row(png_ptr, NULL);
               png_read_push_finish_row(png_ptr);
            }
+            if (png_ptr->pass == 4) /* pass 3 might be empty */
+            {
+               for (i = 0; i < 2 && png_ptr->pass == 4; i++)
+               {
+                  png_push_have_row(png_ptr, NULL);
+                  png_read_push_finish_row(png_ptr);
+               }
+            }
            break;
         }
         case 3:
@@ -828,7 +847,7 @@ png_push_process_row(png_structp png_ptr)
               png_push_have_row(png_ptr, png_ptr->row_buf + 1);
               png_read_push_finish_row(png_ptr);
            }
-            if (png_ptr->pass == 4)
+            if (png_ptr->pass == 4) /* skip top two generated rows */
            {
               for (i = 0; i < 2 && png_ptr->pass == 4; i++)
               {
@@ -851,6 +870,11 @@ png_push_process_row(png_structp png_ptr)
               png_push_have_row(png_ptr, NULL);
               png_read_push_finish_row(png_ptr);
            }
+            if (png_ptr->pass == 6) /* pass 5 might be empty */
+            {
+               png_push_have_row(png_ptr, NULL);
+               png_read_push_finish_row(png_ptr);
+            }
            break;
         }
         case 5:
@@ -861,7 +885,7 @@ png_push_process_row(png_structp png_ptr)
               png_push_have_row(png_ptr, png_ptr->row_buf + 1);
               png_read_push_finish_row(png_ptr);
            }
-            if (png_ptr->pass == 6)
+            if (png_ptr->pass == 6) /* skip top generated row */
            {
               png_push_have_row(png_ptr, NULL);
               png_read_push_finish_row(png_ptr);
@@ -894,25 +918,25 @@ png_read_push_finish_row(png_structp png_ptr)
   /* arrays to facilitate easy interlacing - use pass (0 - 6) as index */

   /* start of interlace block */
-   const int png_pass_start[] = {0, 4, 0, 2, 0, 1, 0};
+   const int FARDATA png_pass_start[] = {0, 4, 0, 2, 0, 1, 0};

   /* offset to next interlace block */
-   const int png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1};
+   const int FARDATA png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1};

   /* start of interlace block in the y direction */
-   const int png_pass_ystart[] = {0, 0, 4, 0, 2, 0, 1};
+   const int FARDATA png_pass_ystart[] = {0, 0, 4, 0, 2, 0, 1};

   /* offset to next interlace block in the y direction */
-   const int png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2};
+   const int FARDATA png_pass_yinc[] = {8, 8, 8, 4, 4, 2, 2};

   /* Width of interlace block.  This is not currently used - if you need
    * it, uncomment it here and in png.h
-   const int png_pass_width[] = {8, 4, 4, 2, 2, 1, 1};
+   const int FARDATA png_pass_width[] = {8, 4, 4, 2, 2, 1, 1};
   */

   /* Height of interlace block.  This is not currently used - if you need
    * it, uncomment it here and in png.h
-   const int png_pass_height[] = {8, 8, 4, 4, 2, 2, 1};
+   const int FARDATA png_pass_height[] = {8, 8, 4, 4, 2, 2, 1};
   */
 #endif

@@ -928,6 +952,11 @@ png_read_push_finish_row(png_structp png_ptr)
      do
      {
         png_ptr->pass++;
+         if ((png_ptr->pass == 1 && png_ptr->width < 5) ||
+             (png_ptr->pass == 3 && png_ptr->width < 3) ||
+             (png_ptr->pass == 5 && png_ptr->width < 2))
+           png_ptr->pass++;
+
         if (png_ptr->pass >= 7)
            break;

@@ -1429,7 +1458,8 @@ png_progressive_combine_row (png_structp png_ptr,
   png_bytep old_row, png_bytep new_row)
 {
 #ifdef PNG_USE_LOCAL_ARRAYS
-   const int png_pass_dsp_mask[7] = {0xff, 0x0f, 0xff, 0x33, 0xff, 0x55, 0xff};
+   const int FARDATA png_pass_dsp_mask[7] =
+      {0xff, 0x0f, 0xff, 0x33, 0xff, 0x55, 0xff};
 #endif
   if (new_row != NULL)    /* new_row must == png_ptr->row_buf here. */
      png_combine_row(png_ptr, old_row, png_pass_dsp_mask[png_ptr->pass]);
--- a/pngread.c
+++ b/pngread.c
@@ -1,9 +1,9 @@

 /* pngread.c - read a PNG file
 *
- * libpng 1.0.8beta3 - July 11, 2000
+ * libpng 1.0.9 - January 31, 2001
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2001 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
@@ -62,6 +62,7 @@ png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
 #endif
   {
      png_free(png_ptr, png_ptr->zbuf);
+      png_ptr->zbuf=NULL;
      png_destroy_struct(png_ptr);
      return (png_structp)NULL;
   }
@@ -102,7 +103,7 @@ png_create_read_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
        removed from version 2.0.0 and beyond because the previous test
        would have already rejected it. */

-     if (user_png_ver[4] == '6' && user_png_ver[2] == '0' && 
+     if (user_png_ver[4] == '6' && user_png_ver[2] == '0' &&
         user_png_ver[0] == '1' && user_png_ver[5] == '\0')
     {
        png_error(png_ptr,
@@ -245,6 +246,8 @@ png_read_info(png_structp png_ptr, png_infop info_ptr)
         else
            png_error(png_ptr, "PNG file corrupted by ASCII conversion");
      }
+      if (num_checked < 3)
+         png_ptr->mode |= PNG_HAVE_PNG_SIGNATURE;
   }

   for(;;)
@@ -315,7 +318,7 @@ png_read_info(png_structp png_ptr, png_infop info_ptr)
      png_reset_crc(png_ptr);
      png_crc_read(png_ptr, png_ptr->chunk_name, 4);

-      png_debug2(0, "Reading %s chunk, length=%d.\n", png_ptr->chunk_name,
+      png_debug2(0, "Reading %s chunk, length=%lu.\n", png_ptr->chunk_name,
         length);

      /* This should be a binary subdivision search or a hash for
@@ -439,6 +442,9 @@ png_read_update_info(png_structp png_ptr, png_infop info_ptr)
   /* save jump buffer and error functions */
   if (!(png_ptr->flags & PNG_FLAG_ROW_INIT))
      png_read_start_row(png_ptr);
+   else
+      png_warning(png_ptr,
+      "Ignoring extra png_read_update_info() call; row buffer not reallocated");
   png_read_transform_info(png_ptr, info_ptr);
 }

@@ -465,7 +471,7 @@ png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
   const int png_pass_mask[7] = {0x80, 0x08, 0x88, 0x22, 0xaa, 0x55, 0xff};
 #endif
   int ret;
-   png_debug2(1, "in png_read_row (row %d, pass %d)\n",
+   png_debug2(1, "in png_read_row (row %lu, pass %d)\n",
      png_ptr->row_number, png_ptr->pass);
   /* save jump buffer and error functions */
   if (!(png_ptr->flags & PNG_FLAG_ROW_INIT))
@@ -642,6 +648,15 @@ png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)

   png_memcpy_check(png_ptr, png_ptr->prev_row, png_ptr->row_buf,
      png_ptr->rowbytes + 1);
+   
+#if defined(PNG_MNG_FEATURES_SUPPORTED)
+   if((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) &&
+      (png_ptr->filter_type == PNG_INTRAPIXEL_DIFFERENCING))
+   {
+      /* Intrapixel differencing */
+      png_do_read_intrapixel(&(png_ptr->row_info), png_ptr->row_buf + 1);
+   }
+#endif

   if (png_ptr->transformations)
      png_do_read_transformations(png_ptr);
@@ -652,8 +667,11 @@ png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
      (png_ptr->transformations & PNG_INTERLACE))
   {
      if (png_ptr->pass < 6)
+/*       old interface (pre-1.0.9):
         png_do_read_interlace(&(png_ptr->row_info),
            png_ptr->row_buf + 1, png_ptr->pass, png_ptr->transformations);
+ */
+         png_do_read_interlace(png_ptr);

      if (dsp_row != NULL)
         png_combine_row(png_ptr, dsp_row,
@@ -697,7 +715,7 @@ png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
 * not called png_set_interlace_handling(), the display_row buffer will
 * be ignored, so pass NULL to it.
 *
- * [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.8beta3
+ * [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.9
 */

 void PNGAPI
@@ -746,7 +764,7 @@ png_read_rows(png_structp png_ptr, png_bytepp row,
 * only call this function once.  If you desire to have an image for
 * each pass of a interlaced image, use png_read_rows() instead.
 *
- * [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.8beta3
+ * [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.9
 */
 void PNGAPI
 png_read_image(png_structp png_ptr, png_bytepp image)
--- a/pngrio.c
+++ b/pngrio.c
@@ -1,9 +1,9 @@

 /* pngrio.c - functions for data input
 *
- * libpng 1.0.8beta3 - July 11, 2000
+ * libpng 1.0.9 - January 31, 2001
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2001 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
--- a/pngrtran.c
+++ b/pngrtran.c
@@ -1,9 +1,9 @@

 /* pngrtran.c - transforms the data in a row for PNG readers
 *
- * libpng 1.0.8beta3 - July 11, 2000
+ * libpng 1.0.9 - January 31, 2001
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2001 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
@@ -1090,7 +1090,12 @@ png_read_transform_info(png_structp png_ptr, png_infop info_ptr)
   if ((png_ptr->transformations & PNG_FILLER) &&
       ((info_ptr->color_type == PNG_COLOR_TYPE_RGB) ||
       (info_ptr->color_type == PNG_COLOR_TYPE_GRAY)))
+   {
      info_ptr->channels++;
+#if 0 /* if adding a true alpha channel not just filler */
+      info_ptr->color_type |= PNG_COLOR_MASK_ALPHA;
+#endif
+   }
 #endif

 #if defined(PNG_USER_TRANSFORM_PTR_SUPPORTED) && \
@@ -4048,3 +4053,63 @@ png_build_gamma_table(png_structp png_ptr)
 /* To do: install integer version of png_build_gamma_table here */
 #endif

+#if defined(PNG_MNG_FEATURES_SUPPORTED)
+/* undoes intrapixel differencing  */
+void /* PRIVATE */
+png_do_read_intrapixel(png_row_infop row_info, png_bytep row)
+{
+   png_debug(1, "in png_do_read_intrapixel\n");
+   if (
+#if defined(PNG_USELESS_TESTS_SUPPORTED)
+       row != NULL && row_info != NULL &&
+#endif
+       (row_info->color_type & PNG_COLOR_MASK_COLOR))
+   {
+      int bytes_per_pixel;
+      png_uint_32 row_width = row_info->width;
+      if (row_info->bit_depth == 8)
+      {
+         png_bytep rp;
+         png_uint_32 i;
+
+         if (row_info->color_type == PNG_COLOR_TYPE_RGB)
+            bytes_per_pixel = 3;
+         else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
+            bytes_per_pixel = 4;
+         else
+            return;
+
+         for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel)
+         {
+            *(rp) = (png_byte)((256 + *rp + *(rp+1))&0xff);
+            *(rp+2) = (png_byte)((256 + *(rp+2) + *(rp+1))&0xff);
+         }
+      }
+      else if (row_info->bit_depth == 16)
+      {
+         png_bytep rp;
+         png_uint_32 i;
+
+         if (row_info->color_type == PNG_COLOR_TYPE_RGB)
+            bytes_per_pixel = 6;
+         else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
+            bytes_per_pixel = 8;
+         else
+            return;
+
+         for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel)
+         {
+            png_uint_32 s0=*(rp  )<<8 | *(rp+1);
+            png_uint_32 s1=*(rp+2)<<8 | *(rp+3);
+            png_uint_32 s2=*(rp+4)<<8 | *(rp+5);
+            png_uint_32 red=(65536+s0+s1)&0xffff;
+            png_uint_32 blue=(65536+s2+s1)&0xffff;
+            *(rp  ) = (png_byte)((red>>8)&0xff);
+            *(rp+1) = (png_byte)(red&0xff);
+            *(rp+4) = (png_byte)((blue>>8)&0xff);
+            *(rp+5) = (png_byte)(blue&0xff);
+         }
+      }
+   }
+}
+#endif /* PNG_MNG_FEATURES_SUPPORTED */
--- a/pngrutil.c
+++ b/pngrutil.c
@@ -1,9 +1,9 @@

 /* pngrutil.c - utilities to read a PNG file
 *
- * libpng 1.0.8beta3 - July 11, 2000
+ * libpng 1.0.9 - January 31, 2001
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2001 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
@@ -174,7 +174,7 @@ png_decompress_chunk(png_structp png_ptr, int comp_type,
   png_charp text = NULL;
   png_size_t text_size;

-   if (comp_type == PNG_TEXT_COMPRESSION_zTXt)
+   if (comp_type == PNG_COMPRESSION_TYPE_BASE)
   {
      int ret = Z_OK;
      png_ptr->zstream.next_in = (png_bytep)(chunkdata + prefix_size);
@@ -266,6 +266,13 @@ png_decompress_chunk(png_structp png_ptr, int comp_type,
         png_warning(png_ptr,
            "Incomplete compressed datastream in chunk other than IDAT");
 #endif
+         text_size=prefix_size;
+         if (text ==  NULL)
+         {
+            text = (png_charp)png_malloc(png_ptr, text_size+1);
+            png_memcpy(text, chunkdata, prefix_size);
+         }
+         *(text + text_size) = 0x00;
      }

      inflateReset(&png_ptr->zstream);
@@ -275,7 +282,7 @@ png_decompress_chunk(png_structp png_ptr, int comp_type,
      chunkdata = text;
      *newlength=text_size;
   }
-   else /* if (comp_type != PNG_TEXT_COMPRESSION_zTXt) */
+   else /* if (comp_type != PNG_COMPRESSION_TYPE_BASE) */
   {
 #if !defined(PNG_NO_STDIO) && !defined(_WIN32_WCE)
      char umsg[50];
@@ -286,10 +293,8 @@ png_decompress_chunk(png_structp png_ptr, int comp_type,
      png_warning(png_ptr, "Unknown zTXt compression type");
 #endif

-      /* Copy what we can of the error message into the text chunk */
-      text_size = (png_size_t)(chunklength - (text - chunkdata));
-      text_size = sizeof(msg) > text_size ? text_size : sizeof(msg);
-      png_memcpy(text, msg, text_size);
+      *(chunkdata + prefix_size) = 0x00;
+      *newlength=prefix_size;
   }

   return chunkdata;
@@ -353,8 +358,33 @@ png_handle_IHDR(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
   if (compression_type != PNG_COMPRESSION_TYPE_BASE)
      png_error(png_ptr, "Unknown compression method in IHDR");

-   if (filter_type != PNG_FILTER_TYPE_BASE)
+#if defined(PNG_MNG_FEATURES_SUPPORTED)
+   /* Accept filter_method 64 (intrapixel differencing) only if
+    * 1. Libpng was compiled with PNG_MNG_FEATURES_SUPPORTED and
+    * 2. Libpng did not read a PNG signature (this filter_method is only
+    *    used in PNG datastreams that are embedded in MNG datastreams) and
+    * 3. The application called png_permit_mng_features with a mask that
+    *    included PNG_FLAG_MNG_FILTER_64 and
+    * 4. The filter_method is 64 and
+    * 5. The color_type is RGB or RGBA
+    */
+   if((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE)&&png_ptr->mng_features_permitted)
+      png_warning(png_ptr,"MNG features are not allowed in a PNG datastream\n");
+   if(filter_type != PNG_FILTER_TYPE_BASE)
+   {
+     if(!((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) &&
+        (filter_type == PNG_INTRAPIXEL_DIFFERENCING) &&
+        ((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE) == 0) &&
+        (color_type == PNG_COLOR_TYPE_RGB || 
+         color_type == PNG_COLOR_TYPE_RGB_ALPHA)))
+        png_error(png_ptr, "Unknown filter method in IHDR");
+     if(png_ptr->mode&PNG_HAVE_PNG_SIGNATURE)
+        png_warning(png_ptr, "Invalid filter method in IHDR");
+   }
+#else
+   if(filter_type != PNG_FILTER_TYPE_BASE)
      png_error(png_ptr, "Unknown filter method in IHDR");
+#endif

   /* set internal variables */
   png_ptr->width = width;
@@ -362,6 +392,7 @@ png_handle_IHDR(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
   png_ptr->bit_depth = (png_byte)bit_depth;
   png_ptr->interlaced = (png_byte)interlace_type;
   png_ptr->color_type = (png_byte)color_type;
+   png_ptr->filter_type = (png_byte)filter_type;

   /* find number of channels */
   switch (png_ptr->color_type)
@@ -388,7 +419,7 @@ png_handle_IHDR(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
      (png_uint_32)png_ptr->pixel_depth + 7) >> 3);
   png_debug1(3,"bit_depth = %d\n", png_ptr->bit_depth);
   png_debug1(3,"channels = %d\n", png_ptr->channels);
-   png_debug1(3,"rowbytes = %d\n", png_ptr->rowbytes);
+   png_debug1(3,"rowbytes = %lu\n", png_ptr->rowbytes);
   png_set_IHDR(png_ptr, info_ptr, width, height, bit_depth,
      color_type, interlace_type, compression_type, filter_type);
 }
@@ -397,7 +428,7 @@ png_handle_IHDR(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
 void /* PRIVATE */
 png_handle_PLTE(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
 {
-   png_colorp palette;
+   png_color palette[PNG_MAX_PALETTE_LENGTH];
   int num, i;
 #ifndef PNG_NO_POINTER_INDEXING
   png_colorp pal_ptr;
@@ -426,7 +457,7 @@ png_handle_PLTE(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
   }
 #endif

-   if (length > 768 || length % 3)
+   if (length > 3*PNG_MAX_PALETTE_LENGTH || length % 3)
   {
      if (png_ptr->color_type != PNG_COLOR_TYPE_PALETTE)
      {
@@ -442,8 +473,6 @@ png_handle_PLTE(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)

   num = (int)length / 3;

-   palette = (png_colorp)png_zalloc(png_ptr, (uInt)num, sizeof (png_color));
-
 #ifndef PNG_NO_POINTER_INDEXING
   for (i = 0, pal_ptr = palette; i < num; i++, pal_ptr++)
   {
@@ -493,7 +522,6 @@ png_handle_PLTE(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
         else
         {
            png_chunk_warning(png_ptr, "CRC error");
-            png_zfree(png_ptr, palette);
            return;
         }
      }
@@ -504,15 +532,7 @@ png_handle_PLTE(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
      }
   }
 #endif
-   png_ptr->palette = palette;
-   png_ptr->num_palette = (png_uint_16)num;

-#ifdef PNG_FREE_ME_SUPPORTED
-   png_free_data(png_ptr, info_ptr, PNG_FREE_PLTE, 0);
-   png_ptr->free_me |= PNG_FREE_PLTE;
-#else
-   png_ptr->flags |= PNG_FLAG_FREE_PLTE;
-#endif
   png_set_PLTE(png_ptr, info_ptr, palette, num);

 #if defined(PNG_READ_tRNS_SUPPORTED)
@@ -976,6 +996,8 @@ png_handle_iCCP(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
   png_byte compression_type;
   png_charp profile;
   png_uint_32 skip = 0;
+   png_uint_32 profile_size = 0;
+   png_uint_32 profile_length = 0;
   png_size_t slength, prefix_length, data_length;

   png_debug(1, "in png_handle_iCCP\n");
@@ -1027,22 +1049,45 @@ png_handle_iCCP(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)

   /* there should be at least one zero (the compression type byte)
      following the separator, and we should be on it  */
-   if (*profile || profile >= chunkdata + slength)
+   if ( profile >= chunkdata + slength)
   {
      png_free(png_ptr, chunkdata);
-      png_warning(png_ptr, "malformed iCCP chunk");
+      png_warning(png_ptr, "Malformed iCCP chunk");
      return;
   }

   /* compression_type should always be zero */
   compression_type = *profile++;
+   if (compression_type)
+   {
+      png_warning(png_ptr, "Ignoring nonzero compression type in iCCP chunk");
+      compression_type=0x00;  /* Reset it to zero (libpng-1.0.6 through 1.0.8
+                                 wrote nonzero) */
+   }

   prefix_length = profile - chunkdata;
   chunkdata = png_decompress_chunk(png_ptr, compression_type, chunkdata,
                                    slength, prefix_length, &data_length);

+   profile_length = data_length - prefix_length;
+
+   /* Check the profile_size recorded in the first 32 bits of the ICC profile */
+   profile_size = ((*(chunkdata+prefix_length))<<24) |
+                  ((*(chunkdata+prefix_length+1))<<16) |
+                  ((*(chunkdata+prefix_length+2))<< 8) |
+                  ((*(chunkdata+prefix_length+3))    );
+
+   if(profile_size < profile_length)
+      profile_length = profile_size;
+
+   if(profile_size > profile_length)
+   {
+      png_warning(png_ptr, "Ignoring truncated iCCP profile.\n");
+      return;
+   }
+
   png_set_iCCP(png_ptr, info_ptr, chunkdata, compression_type,
-                chunkdata + prefix_length, data_length);
+                chunkdata + prefix_length, profile_length);
   png_free(png_ptr, chunkdata);
 }
 #endif /* PNG_READ_iCCP_SUPPORTED */
@@ -1179,6 +1224,8 @@ png_handle_sPLT(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
 void /* PRIVATE */
 png_handle_tRNS(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
 {
+   png_byte	readbuf[PNG_MAX_PALETTE_LENGTH];
+
   png_debug(1, "in png_handle_tRNS\n");

   if (!(png_ptr->mode & PNG_HAVE_IHDR))
@@ -1216,8 +1263,7 @@ png_handle_tRNS(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
         return;
      }

-      png_ptr->trans = (png_bytep)png_malloc(png_ptr, length);
-      png_crc_read(png_ptr, png_ptr->trans, (png_size_t)length);
+      png_crc_read(png_ptr, readbuf, (png_size_t)length);
      png_ptr->num_trans = (png_uint_16)length;
   }
   else if (png_ptr->color_type == PNG_COLOR_TYPE_RGB)
@@ -1262,15 +1308,7 @@ png_handle_tRNS(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
   if (png_crc_finish(png_ptr, 0))
      return;

-#ifdef PNG_FREE_ME_SUPPORTED
-   png_free_data(png_ptr, info_ptr, PNG_FREE_TRNS, 0);
-   if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
-      png_ptr->free_me |= PNG_FREE_TRNS;
-#else
-   if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
-      png_ptr->flags |= PNG_FLAG_FREE_TRNS;
-#endif
-   png_set_tRNS(png_ptr, info_ptr, png_ptr->trans, png_ptr->num_trans,
+   png_set_tRNS(png_ptr, info_ptr, readbuf, png_ptr->num_trans,
      &(png_ptr->trans_values));
 }
 #endif
@@ -1336,7 +1374,6 @@ png_handle_bKGD(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
          if(buf[0] > info_ptr->num_palette)
          {
             png_warning(png_ptr, "Incorrect bKGD chunk index value");
-             png_crc_finish(png_ptr, length);
             return;
          }
          png_ptr->background.red =
@@ -1370,6 +1407,7 @@ void /* PRIVATE */
 png_handle_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
 {
   int num, i;
+   png_uint_16	readbuf[PNG_MAX_PALETTE_LENGTH];

   png_debug(1, "in png_handle_hIST\n");

@@ -1394,34 +1432,26 @@ png_handle_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
      return;
   }

-   if (length != (png_uint_32)(2 * png_ptr->num_palette))
+   num = (int)length / 2 ;
+   if (num != png_ptr->num_palette)
   {
      png_warning(png_ptr, "Incorrect hIST chunk length");
      png_crc_finish(png_ptr, length);
      return;
   }

-   num = (int)length / 2 ;
-   png_ptr->hist = (png_uint_16p)png_malloc(png_ptr,
-      (png_uint_32)(num * sizeof (png_uint_16)));
   for (i = 0; i < num; i++)
   {
      png_byte buf[2];

      png_crc_read(png_ptr, buf, 2);
-      png_ptr->hist[i] = png_get_uint_16(buf);
+      readbuf[i] = png_get_uint_16(buf);
   }

   if (png_crc_finish(png_ptr, 0))
      return;

-#ifdef PNG_FREE_ME_SUPPORTED
-   png_free_data(png_ptr, info_ptr, PNG_FREE_HIST, 0);
-   png_ptr->free_me |= PNG_FREE_HIST;
-#else
-   png_ptr->flags |= PNG_FLAG_FREE_HIST;
-#endif
-   png_set_hIST(png_ptr, info_ptr, png_ptr->hist);
+   png_set_hIST(png_ptr, info_ptr, readbuf);
 }
 #endif

@@ -1541,7 +1571,7 @@ png_handle_pCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
      return;
   }

-   png_debug1(2, "Allocating and reading pCAL chunk data (%d bytes)\n",
+   png_debug1(2, "Allocating and reading pCAL chunk data (%lu bytes)\n",
      length + 1);
   purpose = (png_charp)png_malloc(png_ptr, length + 1);
   slength = (png_size_t)length;
@@ -1661,7 +1691,7 @@ png_handle_sCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
      return;
   }

-   png_debug1(2, "Allocating and reading sCAL chunk data (%d bytes)\n",
+   png_debug1(2, "Allocating and reading sCAL chunk data (%lu bytes)\n",
      length + 1);
   buffer = (png_charp)png_malloc(png_ptr, length + 1);
   slength = (png_size_t)length;
@@ -1900,6 +1930,11 @@ png_handle_zTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
   else
   {
       comp_type = *(++text);
+       if (comp_type != PNG_TEXT_COMPRESSION_zTXt)
+       {
+          png_warning(png_ptr, "Unknown compression type in zTXt chunk");
+          comp_type = PNG_TEXT_COMPRESSION_zTXt;
+       }
       text++;        /* skip the compression_method byte */
   }
   prefix_len = text - chunkdata;
@@ -2130,13 +2165,9 @@ png_check_chunk_name(png_structp png_ptr, png_bytep chunk_name)
   a zero indicates the pixel is to be skipped.  This is in addition
   to any alpha or transparency value associated with the pixel.  If
   you want all pixels to be combined, pass 0xff (255) in mask.  */
+#ifndef PNG_HAVE_ASSEMBLER_COMBINE_ROW
 void /* PRIVATE */
-#ifdef PNG_HAVE_ASSEMBLER_COMBINE_ROW
-png_combine_row_c
-#else
-png_combine_row
-#endif /* PNG_HAVE_ASSEMBLER_COMBINE_ROW */
-   (png_structp png_ptr, png_bytep row, int mask)
+png_combine_row(png_structp png_ptr, png_bytep row, int mask)
 {
   png_debug(1,"in png_combine_row\n");
   if (mask == 0xff)
@@ -2336,25 +2367,24 @@ png_combine_row
      }
   }
 }
+#endif /* !PNG_HAVE_ASSEMBLER_COMBINE_ROW */

-#if defined(PNG_READ_INTERLACING_SUPPORTED)
+#ifdef PNG_READ_INTERLACING_SUPPORTED
+#ifndef PNG_HAVE_ASSEMBLER_READ_INTERLACE   /* else in pngvcrd.c, pnggccrd.c */
 void /* PRIVATE */
-#ifdef PNG_HAVE_ASSEMBLER_READ_INTERLACE
-png_do_read_interlace_c
-#else
-png_do_read_interlace
-#endif /* PNG_HAVE_ASSEMBLER_READ_INTERLACE */
-   (png_row_infop row_info, png_bytep row, int pass,
-   png_uint_32 transformations)
+png_do_read_interlace(png_structp png_ptr)
 {
+   png_row_infop row_info = &(png_ptr->row_info);
+   png_bytep row = png_ptr->row_buf + 1;
+   int pass = png_ptr->pass;
+   png_uint_32 transformations = png_ptr->transformations;
 #ifdef PNG_USE_LOCAL_ARRAYS
   /* arrays to facilitate easy interlacing - use pass (0 - 6) as index */
-
   /* offset to next interlace block */
   const int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
 #endif

-   png_debug(1,"in png_do_read_interlace\n");
+   png_debug(1,"in png_do_read_interlace (stock C version)\n");
   if (row != NULL && row_info != NULL)
   {
      png_uint_32 final_width;
@@ -2564,19 +2594,16 @@ png_do_read_interlace
      return;
 #endif
 }
-#endif
+#endif /* !PNG_HAVE_ASSEMBLER_READ_INTERLACE */
+#endif /* PNG_READ_INTERLACING_SUPPORTED */

+#ifndef PNG_HAVE_ASSEMBLER_READ_FILTER_ROW
 void /* PRIVATE */
-#ifdef PNG_HAVE_ASSEMBLER_READ_FILTER_ROW
-png_read_filter_row_c
-#else
-png_read_filter_row
-#endif /* PNG_HAVE_ASSEMBLER_READ_FILTER_ROW */
-   (png_structp png_ptr, png_row_infop row_info, png_bytep row,
+png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep row,
   png_bytep prev_row, int filter)
 {
   png_debug(1, "in png_read_filter_row\n");
-   png_debug2(2,"row = %d, filter = %d\n", png_ptr->row_number, filter);
+   png_debug2(2,"row = %lu, filter = %d\n", png_ptr->row_number, filter);
   switch (filter)
   {
      case PNG_FILTER_VALUE_NONE:
@@ -2693,6 +2720,7 @@ png_read_filter_row
         break;
   }
 }
+#endif /* !PNG_HAVE_ASSEMBLER_READ_FILTER_ROW */

 void /* PRIVATE */
 png_read_finish_row(png_structp png_ptr)
@@ -2990,12 +3018,12 @@ defined(PNG_USER_TRANSFORM_PTR_SUPPORTED)

   png_memset_check(png_ptr, png_ptr->prev_row, 0, png_ptr->rowbytes + 1);

-   png_debug1(3, "width = %d,\n", png_ptr->width);
-   png_debug1(3, "height = %d,\n", png_ptr->height);
-   png_debug1(3, "iwidth = %d,\n", png_ptr->iwidth);
-   png_debug1(3, "num_rows = %d\n", png_ptr->num_rows);
-   png_debug1(3, "rowbytes = %d,\n", png_ptr->rowbytes);
-   png_debug1(3, "irowbytes = %d,\n", png_ptr->irowbytes);
+   png_debug1(3, "width = %lu,\n", png_ptr->width);
+   png_debug1(3, "height = %lu,\n", png_ptr->height);
+   png_debug1(3, "iwidth = %lu,\n", png_ptr->iwidth);
+   png_debug1(3, "num_rows = %lu\n", png_ptr->num_rows);
+   png_debug1(3, "rowbytes = %lu,\n", png_ptr->rowbytes);
+   png_debug1(3, "irowbytes = %lu,\n", png_ptr->irowbytes);

   png_ptr->flags |= PNG_FLAG_ROW_INIT;
 }
--- a/pngset.c
+++ b/pngset.c
@@ -1,9 +1,9 @@

 /* pngset.c - storage of image information into info struct
 *
- * libpng 1.0.8beta3 - July 11, 2000
+ * libpng 1.0.9 - January 31, 2001
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2001 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
@@ -133,12 +133,31 @@ png_set_gAMA_fixed(png_structp png_ptr, png_infop info_ptr, png_fixed_point
 void PNGAPI
 png_set_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p hist)
 {
+   int	i;
+
   png_debug1(1, "in %s storage function\n", "hIST");
   if (png_ptr == NULL || info_ptr == NULL)
      return;
+   if (info_ptr->num_palette == 0)
+       png_warning(png_ptr,
+		   "Palette size 0, hIST allocation skipped.");

-   info_ptr->hist = hist;
+#ifdef PNG_FREE_ME_SUPPORTED
+   png_free_data(png_ptr, info_ptr, PNG_FREE_HIST, 0);
+#endif
+   png_ptr->hist = (png_uint_16p)png_malloc(png_ptr,
+      (png_uint_32)(info_ptr->num_palette * sizeof (png_uint_16)));
+
+   for (i = 0; i < info_ptr->num_palette; i++)
+       png_ptr->hist[i] = hist[i];
+   info_ptr->hist = png_ptr->hist;
   info_ptr->valid |= PNG_INFO_hIST;
+
+#ifdef PNG_FREE_ME_SUPPORTED
+   info_ptr->free_me |= PNG_FREE_HIST;
+#else
+   png_ptr->flags |= PNG_FLAG_FREE_HIST;
+#endif
 }
 #endif

@@ -212,7 +231,7 @@ png_set_pCAL(png_structp png_ptr, png_infop info_ptr,
      return;

   length = png_strlen(purpose) + 1;
-   png_debug1(3, "allocating purpose for info (%d bytes)\n", length);
+   png_debug1(3, "allocating purpose for info (%lu bytes)\n", length);
   info_ptr->pcal_purpose = (png_charp)png_malloc(png_ptr, length);
   png_memcpy(info_ptr->pcal_purpose, purpose, (png_size_t)length);

@@ -223,7 +242,7 @@ png_set_pCAL(png_structp png_ptr, png_infop info_ptr,
   info_ptr->pcal_nparams = (png_byte)nparams;

   length = png_strlen(units) + 1;
-   png_debug1(3, "allocating units for info (%d bytes)\n", length);
+   png_debug1(3, "allocating units for info (%lu bytes)\n", length);
   info_ptr->pcal_units = (png_charp)png_malloc(png_ptr, length);
   png_memcpy(info_ptr->pcal_units, units, (png_size_t)length);

@@ -234,7 +253,7 @@ png_set_pCAL(png_structp png_ptr, png_infop info_ptr,
   for (i = 0; i < nparams; i++)
   {
      length = png_strlen(params[i]) + 1;
-      png_debug2(3, "allocating parameter %d for info (%d bytes)\n", i, length);
+      png_debug2(3, "allocating parameter %d for info (%lu bytes)\n", i, length);
      info_ptr->pcal_params[i] = (png_charp)png_malloc(png_ptr, length);
      png_memcpy(info_ptr->pcal_params[i], params[i], (png_size_t)length);
   }
@@ -320,9 +339,26 @@ png_set_PLTE(png_structp png_ptr, png_infop info_ptr,
   if (png_ptr == NULL || info_ptr == NULL)
      return;

-   info_ptr->palette = palette;
+   /*
+    * It may not actually be necessary to set png_ptr->palette here;
+    * we do it for backward compatibility with the way the png_handle_tRNS
+    * function used to do the allocation.
+    */
+#ifdef PNG_FREE_ME_SUPPORTED
+   png_free_data(png_ptr, info_ptr, PNG_FREE_PLTE, 0);
+#endif
+   png_ptr->palette = (png_colorp)png_zalloc(png_ptr, (uInt)num_palette,
+      sizeof (png_color));
+   memcpy(png_ptr->palette, palette, num_palette * sizeof (png_color));
+   info_ptr->palette = png_ptr->palette;
+   info_ptr->num_palette = png_ptr->num_palette = (png_uint_16)num_palette;
+
+#ifdef PNG_FREE_ME_SUPPORTED
+   info_ptr->free_me |= PNG_FREE_PLTE;
+#else
+   png_ptr->flags |= PNG_FLAG_FREE_PLTE;
+#endif

-   info_ptr->num_palette = (png_uint_16)num_palette;
   info_ptr->valid |= PNG_INFO_PLTE;
 }

@@ -556,7 +592,7 @@ png_set_text(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
      textp->key = (png_charp)png_malloc(png_ptr,
         (png_uint_32)(key_len + text_length + lang_len + lang_key_len + 4));
      png_debug2(2, "Allocated %d bytes at %x in png_set_text\n",
-         key_len + lang_len + lang_key_len + text_length + 4, textp->key);
+         key_len + lang_len + lang_key_len + text_length + 4, (int)textp->key);

      png_memcpy(textp->key, text_ptr[i].key,
         (png_size_t)(key_len));
@@ -631,7 +667,23 @@ png_set_tRNS(png_structp png_ptr, png_infop info_ptr,
      return;

   if (trans != NULL)
-      info_ptr->trans = trans;
+   {
+       /*
+	* It may not actually be necessary to set png_ptr->trans here;
+	* we do it for backward compatibility with the way the png_handle_tRNS
+	* function used to do the allocation.
+	*/
+#ifdef PNG_FREE_ME_SUPPORTED
+       png_free_data(png_ptr, info_ptr, PNG_FREE_TRNS, 0);
+#endif
+       png_ptr->trans = info_ptr->trans = png_malloc(png_ptr, num_trans);
+       memcpy(info_ptr->trans, trans, num_trans);
+#ifdef PNG_FREE_ME_SUPPORTED
+       info_ptr->free_me |= PNG_FREE_TRNS;
+#else
+       png_ptr->flags |= PNG_FLAG_FREE_TRNS;
+#endif
+   }

   if (trans_values != NULL)
   {
@@ -659,6 +711,7 @@ png_set_sPLT(png_structp png_ptr,
    png_memcpy(np, info_ptr->splt_palettes,
           info_ptr->splt_palettes_num * sizeof(png_sPLT_t));
    png_free(png_ptr, info_ptr->splt_palettes);
+    info_ptr->splt_palettes=NULL;

    for (i = 0; i < nentries; i++)
    {
@@ -703,6 +756,7 @@ png_set_unknown_chunks(png_structp png_ptr,
    png_memcpy(np, info_ptr->unknown_chunks,
           info_ptr->unknown_chunks_num * sizeof(png_unknown_chunk));
    png_free(png_ptr, info_ptr->unknown_chunks);
+    info_ptr->unknown_chunks=NULL;

    for (i = 0; i < num_unknowns; i++)
    {
@@ -728,7 +782,7 @@ void PNGAPI
 png_set_unknown_chunk_location(png_structp png_ptr, png_infop info_ptr,
   int chunk, int location)
 {
-   if(png_ptr != NULL && info_ptr != NULL && chunk >= 0 && chunk < 
+   if(png_ptr != NULL && info_ptr != NULL && chunk >= 0 && chunk <
         (int)info_ptr->unknown_chunks_num)
      info_ptr->unknown_chunks[chunk].location = (png_byte)location;
 }
@@ -739,10 +793,27 @@ png_set_unknown_chunk_location(png_structp png_ptr, png_infop info_ptr,
 void PNGAPI
 png_permit_empty_plte (png_structp png_ptr, int empty_plte_permitted)
 {
-   png_debug1(1, "in png_permit_empty_plte\n", "");
+   /* This function is deprecated in favor of png_permit_mng_features()
+      and will be removed from libpng-2.0.0 */
+   png_debug(1, "in png_permit_empty_plte, DEPRECATED.\n");
   if (png_ptr == NULL)
      return;
-   png_ptr->empty_plte_permitted=(png_byte)empty_plte_permitted;
+   png_ptr->mng_features_permitted = (png_byte)
+     ((png_ptr->mng_features_permitted & (~(PNG_FLAG_MNG_EMPTY_PLTE))) |
+     ((empty_plte_permitted & PNG_FLAG_MNG_EMPTY_PLTE)));
+}
+#endif
+
+#if defined(PNG_MNG_FEATURES_SUPPORTED)
+png_uint_32 PNGAPI
+png_permit_mng_features (png_structp png_ptr, png_uint_32 mng_features)
+{
+   png_debug(1, "in png_permit_mng_features\n");
+   if (png_ptr == NULL)
+      return (png_uint_32)0;
+   png_ptr->mng_features_permitted =
+     (png_byte)(mng_features & PNG_ALL_MNG_FEATURES);
+   return (png_uint_32)png_ptr->mng_features_permitted;
 }
 #endif

@@ -774,6 +845,7 @@ png_set_keep_unknown_chunks(png_structp png_ptr, int keep, png_bytep
    {
       png_memcpy(new_list, png_ptr->chunk_list, 5*old_num_chunks);
       png_free(png_ptr, png_ptr->chunk_list);
+       png_ptr->chunk_list=NULL;
    }
    png_memcpy(new_list+5*old_num_chunks, chunk_list, 5*num_chunks);
    for (p=new_list+5*old_num_chunks+4, i=0; i<num_chunks; i++, p+=5)
@@ -822,6 +894,8 @@ png_set_compression_buffer_size(png_structp png_ptr, png_uint_32 size)
       png_free(png_ptr, png_ptr->zbuf);
    png_ptr->zbuf_size = (png_size_t)size;
    png_ptr->zbuf = (png_bytep)png_malloc(png_ptr, size);
+    if(!png_ptr->zbuf)
+       png_error(png_ptr,"Unable to malloc zbuf");
    png_ptr->zstream.next_out = png_ptr->zbuf;
    png_ptr->zstream.avail_out = (uInt)png_ptr->zbuf_size;
 }
@@ -832,3 +906,4 @@ png_set_invalid(png_structp png_ptr, png_infop info_ptr, int mask)
   if (png_ptr && info_ptr)
      info_ptr->valid &= ~(mask);
 }
+
--- a/pngtest.c
+++ b/pngtest.c
@@ -1,9 +1,9 @@

 /* pngtest.c - a simple test program to test libpng
 *
- * libpng 1.0.8beta3 - July 11, 2000
+ * libpng 1.0.9 - January 31, 2001
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2001 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
@@ -16,7 +16,8 @@
 * The program will report "FAIL" in certain legitimate cases:
 * 1) when the compression level or filter selection method is changed.
 * 2) when the maximum IDAT size (PNG_ZBUF_SIZE in pngconf.h) is not 8192.
- * 3) unknown ancillary chunks exist in the input file.
+ * 3) unknown unsafe-to-copy ancillary chunks or unknown critical chunks
+ *    exist in the input file.
 * 4) others not listed here...
 * In these cases, it is best to check with another tool such as "pngcheck"
 * to see what the differences between the two files are.
@@ -49,6 +50,14 @@
 #  define FCLOSE(file) fclose(file)
 #endif

+#if defined(PNG_NO_STDIO)
+#if defined(_WIN32_WCE)
+typedef HANDLE                png_FILE_p;
+#else
+typedef FILE                * png_FILE_p;
+#endif
+#endif
+
 /* Makes pngtest verbose so we can find problems (needs to be before png.h) */
 #ifndef PNG_DEBUG
 #define PNG_DEBUG 0
@@ -103,6 +112,8 @@ static int status_pass=1;
 static int status_dots_requested=0;
 static int status_dots=1;

+void
+read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass);
 void
 read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)
 {
@@ -122,6 +133,8 @@ read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)
    fprintf(stdout, "r");
 }

+void
+write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass);
 void
 write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)
 {
@@ -136,6 +149,8 @@ write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass)
   5 in case illegal filter values are present.) */
 static png_uint_32 filters_used[256];
 void
+count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data);
+void
 count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data)
 {
    if(png_ptr != NULL && row_info != NULL)
@@ -149,6 +164,8 @@ count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data)

 static png_uint_32 zero_samples;

+void
+count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data);
 void
 count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data)
 {
@@ -248,6 +265,7 @@ static int wrote_question = 0;
   not reading from a standard C stream, you should create a replacement
   read_data function and use it at run time with png_set_read_fn(), rather
   than changing the library. */
+
 #ifndef USE_FAR_KEYWORD
 static void
 pngtest_read_data(png_structp png_ptr, png_bytep data, png_size_t length)
@@ -337,7 +355,7 @@ pngtest_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
 {
   png_uint_32 check;

-   WRITEFILE((png_FILE_p)png_ptr->io_ptr,  data, 1, check);
+   WRITEFILE((png_FILE_p)png_ptr->io_ptr,  data, length, check);
   if (check != length)
   {
      png_error(png_ptr, "Write Error");
@@ -364,7 +382,7 @@ pngtest_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
   io_ptr = (png_FILE_p)CVT_PTR(png_ptr->io_ptr);
   if ((png_bytep)near_data == data)
   {
-      WRITEFILE(io_ptr, near_data, 1, check);
+      WRITEFILE(io_ptr, near_data, length, check);
   }
   else
   {
@@ -376,7 +394,7 @@ pngtest_write_data(png_structp png_ptr, png_bytep data, png_size_t length)
      {
         written = MIN(NEAR_BUF_SIZE, remaining);
         png_memcpy(buf, data, written); /* copy far buffer to near buffer */
-         WRITEFILE(io_ptr, written, 1, err);
+         WRITEFILE(io_ptr, buf, written, err);
         if (err != written)
            break;
         else
@@ -517,6 +535,7 @@ png_debug_free(png_structp png_ptr, png_voidp ptr)
               the memory that is to be freed. */
            memset(ptr, 0x55, pinfo->size);
            png_free_default(png_ptr, pinfo);
+            pinfo=NULL;
            break;
         }
         if (pinfo->next == NULL)
@@ -534,6 +553,7 @@ png_debug_free(png_structp png_ptr, png_voidp ptr)
      printf("Freeing %x\n",ptr);
 #endif
   png_free_default(png_ptr, ptr);
+   ptr=NULL;
 }
 #endif /* PNG_USER_MEM_SUPPORTED */
 /* END of code to test memory allocation/deallocation */
@@ -878,22 +898,24 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
 #ifdef PNG_FLOATING_POINT_SUPPORTED
   {
      int unit;
-      double width, height;
+      double scal_width, scal_height;

-      if (png_get_sCAL(read_ptr, read_info_ptr, &unit, &width, &height))
+      if (png_get_sCAL(read_ptr, read_info_ptr, &unit, &scal_width,
+         &scal_height))
      {
-         png_set_sCAL(write_ptr, write_info_ptr, unit, width, height);
+         png_set_sCAL(write_ptr, write_info_ptr, unit, scal_width, scal_height);
      }
   }
 #else
 #ifdef PNG_FIXED_POINT_SUPPORTED
   {
      int unit;
-      png_charp width, height;
+      png_charp scal_width, scal_height;

-      if (png_get_sCAL_s(read_ptr, read_info_ptr, &unit, &width, &height))
+      if (png_get_sCAL_s(read_ptr, read_info_ptr, &unit, &scal_width,
+          &scal_height))
      {
-         png_set_sCAL_s(write_ptr, write_info_ptr, unit, width, height);
+         png_set_sCAL_s(write_ptr, write_info_ptr, unit, scal_width, scal_height);
      }
   }
 #endif
@@ -1091,6 +1113,7 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)

   png_debug(0, "Destroying data structs\n");
   png_free(read_ptr, row_buf);
+   row_buf=NULL;
   png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr);
   png_destroy_info_struct(write_ptr, &write_end_info_ptr);
   png_destroy_write_struct(&write_ptr, &write_info_ptr);
@@ -1435,4 +1458,4 @@ main(int argc, char *argv[])
 }

 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef version_1_0_8beta3 your_png_h_is_not_version_1_0_8beta3;
+typedef version_1_0_9 your_png_h_is_not_version_1_0_9;
--- a/pngtrans.c
+++ b/pngtrans.c
@@ -1,9 +1,9 @@

 /* pngtrans.c - transforms the data in a row (used by both readers and writers)
 *
- * libpng 1.0.8beta3 - July 11, 2000
+ * libpng 1.0.9 - January 31, 2001
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2001 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 */
@@ -606,3 +606,4 @@ png_get_user_transform_ptr(png_structp png_ptr)
   return (NULL);
 #endif
 }
+
--- a/pngvcrd.c
+++ b/pngvcrd.c
@@ -2,13 +2,22 @@
 *
 * For Intel x86 CPU and Microsoft Visual C++ compiler
 *
- * libpng 1.0.8beta3 - July 11, 2000
+ * libpng 1.0.9 - January 31, 2001
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2001 Glenn Randers-Pehrson
 * Copyright (c) 1998, Intel Corporation
 *
 * Contributed by Nirav Chhatrapati, Intel Corporation, 1998
 * Interface to libpng contributed by Gilles Vollant, 1999
+ * Debugging and cleanup by Greg Roelofs, 2000, 2001
+ *
+ * In png_do_read_interlace() in libpng versions 1.0.3a through 1.0.4d,
+ * a sign error in the post-MMX cleanup code for each pixel_depth resulted
+ * in bad pixels at the beginning of some rows of some images, and also
+ * (due to out-of-range memory reads and writes) caused heap corruption
+ * when compiled with MSVC 6.0.  The error was fixed in version 1.0.4e.
+ *
+ * [png_read_filter_row_mmx_avg() bpp == 2 bugfix, GRR 20000916]
 *
 */

@@ -17,19 +26,11 @@

 #if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_USE_PNGVCRD)

-/*
-   One of these might need to be defined.
-#define DISABLE_PNGVCRD_COMBINE
-#define DISABLE_PNGVCRD_INTERLACE
-*/
-
 static int mmx_supported=2;

-void /* PRIVATE */
-png_read_filter_row_c(png_structp png_ptr, png_row_infop row_info,
-   png_bytep row, png_bytep prev_row, int filter);

-static int mmxsupport()
+int PNGAPI
+png_mmx_support(void)
 {
  int mmx_supported_local = 0;
  _asm {
@@ -81,6 +82,7 @@ NOT_SUPPORTED:
  //mmx_supported_local=0; // test code for force don't support MMX
  //printf("MMX : %u (1=MMX supported)\n",mmx_supported_local);

+  mmx_supported = mmx_supported_local;
  return mmx_supported_local;
 }

@@ -104,19 +106,12 @@ png_combine_row(png_structp png_ptr, png_bytep row, int mask)
 #ifdef PNG_USE_LOCAL_ARRAYS
   const int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
 #endif
-#ifdef DISABLE_PNGVCRD_COMBINE
-   int save_mmx_supported = mmx_supported;
-#endif

   png_debug(1,"in png_combine_row_asm\n");

-#ifdef DISABLE_PNGVCRD_COMBINE
-   if ((png_ptr->transformations & PNG_INTERLACE) && png_ptr->pass != 6)
-       mmx_supported = 0;
-   else
-#endif
-       if (mmx_supported == 2)
-           mmx_supported = mmxsupport();
+   if (mmx_supported == 2) {
+       png_mmx_support();
+   }

   if (mask == 0xff)
   {
@@ -305,7 +300,7 @@ png_combine_row(png_structp png_ptr, png_bytep row, int mask)

            __int64 mask0=0x0102040810204080;

-            if (mmx_supported)
+            if ( mmx_supported )
            {
               srcptr = png_ptr->row_buf + 1;
               dstptr = row;
@@ -405,7 +400,7 @@ end8:
            __int64 mask1=0x0101020204040808,
                    mask0=0x1010202040408080;

-            if (mmx_supported)
+            if ( mmx_supported )
            {
               srcptr = png_ptr->row_buf + 1;
               dstptr = row;
@@ -525,7 +520,7 @@ end16:
            len     = (png_ptr->width)&~7;
            diff = (png_ptr->width)&7;

-            if (mmx_supported)
+            if ( mmx_supported )
            {
               _asm
               {
@@ -656,7 +651,7 @@ end24:
            len     = (png_ptr->width)&~7;
            diff = (png_ptr->width)&7;

-            if (mmx_supported)
+            if ( mmx_supported )
            {
               _asm
               {
@@ -790,7 +785,7 @@ end32:
                    mask1=0x2020202040404040,
                    mask0=0x4040808080808080;

-            if (mmx_supported)
+            if ( mmx_supported )
            {
               srcptr = png_ptr->row_buf + 1;
               dstptr = row;
@@ -961,43 +956,27 @@ end48:
      } /* end switch (png_ptr->row_info.pixel_depth) */
   } /* end if (non-trivial mask) */

-#ifdef DISABLE_PNGVCRD_COMBINE
-   mmx_supported = save_mmx_supported;
-#endif
-
 } /* end png_combine_row() */


 #if defined(PNG_READ_INTERLACING_SUPPORTED)

 void /* PRIVATE */
-png_do_read_interlace(png_row_infop row_info, png_bytep row, int pass,
-   png_uint_32 transformations)
+png_do_read_interlace(png_structp png_ptr)
 {
+   png_row_infop row_info = &(png_ptr->row_info);
+   png_bytep row = png_ptr->row_buf + 1;
+   int pass = png_ptr->pass;
+   png_uint_32 transformations = png_ptr->transformations;
 #ifdef PNG_USE_LOCAL_ARRAYS
   const int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
 #endif
-#ifdef DISABLE_PNGVCRD_INTERLACE
-   int save_mmx_supported = mmx_supported;
-#endif

   png_debug(1,"in png_do_read_interlace\n");

-#ifdef DISABLE_PNGVCRD_INTERLACE
-   /* In libpng versions 1.0.3a through 1.0.4d,
-    * a sign error in the post-MMX cleanup code for each pixel_depth resulted
-    * in bad pixels at the beginning of some rows of some images, and also
-    * (due to out-of-range memory reads and writes) caused heap corruption
-    * when compiled with MSVC 6.0.  The error was fixed in version 1.0.4e,
-    * and the code appears to work completely correctly, so it is enabled
-    * by default.
-    */
-   if (1)  /* all passes caused a heap problem in the old code */
-      mmx_supported = 0;
-   else
-#endif
-       if (mmx_supported == 2)
-           mmx_supported = mmxsupport();
+   if (mmx_supported == 2) {
+       png_mmx_support();
+   }

   if (row != NULL && row_info != NULL)
   {
@@ -1195,7 +1174,8 @@ png_do_read_interlace(png_row_infop row_info, png_bytep row, int pass,
            // sign fix by GRR
            // NOTE:  there is NO MMX code for 48-bit and 64-bit images

-            if (mmx_supported) // use MMX routine if machine supports it
+            // use MMX routine if machine supports it
+            if ( mmx_supported )
            {
               if (pixel_bytes == 3)
               {
@@ -1883,9 +1863,6 @@ loop4_pass4:
         (png_uint_32)row_info->pixel_depth + 7) >> 3);
   }

-#ifdef DISABLE_PNGVCRD_INTERLACE
-   mmx_supported = save_mmx_supported;
-#endif
 }

 #endif /* PNG_READ_INTERLACING_SUPPORTED */
@@ -2117,8 +2094,8 @@ davg4lp:
      case 2:
      {
         ActiveMask.use  = 0x000000000000ffff;
-         ShiftBpp.use = 24;   // == 3 * 8
-         ShiftRem.use = 40;   // == 64 - 24
+         ShiftBpp.use = 16;   // == 2 * 8     [BUGFIX]
+         ShiftRem.use = 48;   // == 64 - 16   [BUGFIX]
         _asm {
            // Load ActiveMask
            movq mm7, ActiveMask
@@ -2133,7 +2110,7 @@ davg4lp:
                              // (we correct position in loop below)
 davg2lp:
            movq mm0, [edi + ebx]
-            psllq mm2, ShiftRem  // shift data to position correctly
+            psrlq mm2, ShiftRem  // shift data to position correctly   [BUGFIX]
            movq mm1, [esi + ebx]
            // Add (Prev_row/2) to Average
            movq mm3, mm5
@@ -3321,7 +3298,7 @@ dsub3lp:
      case 1:
      {
         // Placed here just in case this is a duplicate of the
-         // non-MMX code for the SUB filter in png_read_filter_row above
+         // non-MMX code for the SUB filter in png_read_filter_row below
         //
         //         png_bytep rp;
         //         png_bytep lp;
@@ -3656,61 +3633,50 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
   row, png_bytep prev_row, int filter)
 {
 #ifdef PNG_DEBUG
-   char filnm[6];
+   char filnm[10];
 #endif
-#define UseMMX 1

-   if (mmx_supported == 2)
-       mmx_supported = mmxsupport();
-
-   if (!mmx_supported)
-   {
-       png_read_filter_row_c(png_ptr, row_info, row, prev_row, filter);
-       return ;
+   if (mmx_supported == 2) {
+       png_mmx_support();
   }

 #ifdef PNG_DEBUG
   png_debug(1, "in png_read_filter_row\n");
-#  if (UseMMX == 1)
-   png_debug1(0,"%s, ", "MMX");
-#  else
-   png_debug1(0,"%s, ", "x86");
-#  endif
   switch (filter)
   {
-      case 0: sprintf(filnm, "None ");
+      case 0: sprintf(filnm, "none");
         break;
-      case 1: sprintf(filnm, "Sub  ");
+      case 1: sprintf(filnm, "sub-%s", "MMX");
         break;
-      case 2: sprintf(filnm, "Up   ");
+      case 2: sprintf(filnm, "up-%s", "MMX");
         break;
-      case 3: sprintf(filnm, "Avg  ");
+      case 3: sprintf(filnm, "avg-%s", "MMX");
         break;
-      case 4: sprintf(filnm, "Paeth");
+      case 4: sprintf(filnm, "Paeth-%s", "MMX");
         break;
-      default: sprintf(filnm, "Unknw");
+      default: sprintf(filnm, "unknw");
         break;
   }
   png_debug2(0,"row=%5d, %s, ", png_ptr->row_number, filnm);
   png_debug2(0, "pd=%2d, b=%d, ", (int)row_info->pixel_depth,
      (int)((row_info->pixel_depth + 7) >> 3));
   png_debug1(0,"len=%8d, ", row_info->rowbytes);
-#endif
+#endif /* PNG_DEBUG */

   switch (filter)
   {
      case PNG_FILTER_VALUE_NONE:
         break;
+
      case PNG_FILTER_VALUE_SUB:
      {
-#if (UseMMX == 1)
-         if ((row_info->pixel_depth > 8) &&
-            (row_info->rowbytes >= 128) )
+         if (
+             (row_info->pixel_depth >= PNG_MMX_BITDEPTH_THRESHOLD_DEFAULT) &&
+             (row_info->rowbytes >= PNG_MMX_ROWBYTES_THRESHOLD_DEFAULT))
         {
            png_read_filter_row_mmx_sub(row_info, row);
         }
         else
-#endif
         {
            png_uint_32 i;
            png_uint_32 istop = row_info->rowbytes;
@@ -3723,41 +3689,43 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
               *rp = (png_byte)(((int)(*rp) + (int)(*lp++)) & 0xff);
               rp++;
            }
-         }  //end !UseMMX
+         }
         break;
      }
+
      case PNG_FILTER_VALUE_UP:
      {
-#if (UseMMX == 1)
-         if ((row_info->pixel_depth > 8) &&
-             (row_info->rowbytes >= 128) )
+         if (
+             (row_info->pixel_depth >= PNG_MMX_BITDEPTH_THRESHOLD_DEFAULT) &&
+             (row_info->rowbytes >= PNG_MMX_ROWBYTES_THRESHOLD_DEFAULT))
         {
            png_read_filter_row_mmx_up(row_info, row, prev_row);
-         }  //end if UseMMX
+         }
         else
-#endif
         {
-            png_bytep rp;
-            png_bytep pp;
            png_uint_32 i;
-            for (i = 0, rp = row, pp = prev_row;
-               i < row_info->rowbytes; i++, rp++, pp++)
+            png_uint_32 istop = row_info->rowbytes;
+            png_bytep rp = row;
+            png_bytep pp = prev_row;
+
+            for (i = 0; i < istop; ++i)
            {
-                  *rp = (png_byte)(((int)(*rp) + (int)(*pp)) & 0xff);
+               *rp = (png_byte)(((int)(*rp) + (int)(*pp++)) & 0xff);
+               rp++;
            }
-         }  //end !UseMMX
+         }
         break;
      }
+
      case PNG_FILTER_VALUE_AVG:
      {
-#if (UseMMX == 1)
-         if ((row_info->pixel_depth > 8) &&
-             (row_info->rowbytes >= 128) )
+         if (
+             (row_info->pixel_depth >= PNG_MMX_BITDEPTH_THRESHOLD_DEFAULT) &&
+             (row_info->rowbytes >= PNG_MMX_ROWBYTES_THRESHOLD_DEFAULT))
         {
            png_read_filter_row_mmx_avg(row_info, row, prev_row);
-         }  //end if UseMMX
+         }
         else
-#endif
         {
            png_uint_32 i;
            png_bytep rp = row;
@@ -3779,19 +3747,19 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
                  ((int)(*pp++ + *lp++) >> 1)) & 0xff);
               rp++;
            }
-         }  //end !UseMMX
+         }
         break;
      }
+
      case PNG_FILTER_VALUE_PAETH:
      {
-#if (UseMMX == 1)
-         if ((row_info->pixel_depth > 8) &&
-             (row_info->rowbytes >= 128) )
+         if (
+             (row_info->pixel_depth >= PNG_MMX_BITDEPTH_THRESHOLD_DEFAULT) &&
+             (row_info->rowbytes >= PNG_MMX_ROWBYTES_THRESHOLD_DEFAULT))
         {
            png_read_filter_row_mmx_paeth(row_info, row, prev_row);
-         }  //end if UseMMX
+         }
         else
-#endif
         {
            png_uint_32 i;
            png_bytep rp = row;
@@ -3842,13 +3810,15 @@ png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
               *rp = (png_byte)(((int)(*rp) + p) & 0xff);
               rp++;
            }
-         }  //end !UseMMX
+         }
         break;
      }
+
      default:
-         png_warning(png_ptr, "Ignoring bad adaptive filter type");
+         png_warning(png_ptr, "Ignoring bad row filter type");
         *row=0;
         break;
   }
 }
-#endif
+
+#endif /* PNG_ASSEMBLER_CODE_SUPPORTED && PNG_USE_PNGVCRD */
--- a/pngwio.c
+++ b/pngwio.c
@@ -1,9 +1,9 @@

 /* pngwio.c - functions for data output
 *
- * libpng 1.0.8beta3 - July 11, 2000
+ * libpng 1.0.9 - January 31, 2001
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2001 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 *
--- a/pngwrite.c
+++ b/pngwrite.c
@@ -1,9 +1,9 @@

 /* pngwrite.c - general routines to write a PNG file
 *
- * libpng 1.0.8beta3 - July 11, 2000
+ * libpng 1.0.9 - January 31, 2001
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2001 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 */
@@ -28,6 +28,13 @@ png_write_info_before_PLTE(png_structp png_ptr, png_infop info_ptr)
   if (!(png_ptr->mode & PNG_WROTE_INFO_BEFORE_PLTE))
   {
   png_write_sig(png_ptr); /* write PNG signature */
+#if defined(PNG_MNG_FEATURES_SUPPORTED)
+   if((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE)&&(png_ptr->mng_features_permitted))
+   {
+      png_warning(png_ptr,"MNG features are not allowed in a PNG datastream\n");
+      png_ptr->mng_features_permitted=0;
+   }
+#endif
   /* write IHDR information. */
   png_write_IHDR(png_ptr, info_ptr->width, info_ptr->height,
      info_ptr->bit_depth, info_ptr->color_type, info_ptr->compression_type,
@@ -57,7 +64,7 @@ png_write_info_before_PLTE(png_structp png_ptr, png_infop info_ptr)
 #endif
 #if defined(PNG_WRITE_iCCP_SUPPORTED)
   if (info_ptr->valid & PNG_INFO_iCCP)
-      png_write_iCCP(png_ptr, info_ptr->iccp_name, PNG_TEXT_COMPRESSION_zTXt,
+      png_write_iCCP(png_ptr, info_ptr->iccp_name, PNG_COMPRESSION_TYPE_BASE,
                     info_ptr->iccp_profile, (int)info_ptr->iccp_proflen);
 #endif
 #if defined(PNG_WRITE_sBIT_SUPPORTED)
@@ -375,6 +382,11 @@ png_write_end(png_structp png_ptr, png_infop info_ptr)

   /* write end of PNG file */
   png_write_IEND(png_ptr);
+#if 0
+/* This flush, added in libpng-1.0.8,  causes some applications to crash
+   because they do not set png_ptr->output_flush_fn */
+   png_flush(png_ptr);
+#endif
 }

 #if defined(PNG_WRITE_tIME_SUPPORTED)
@@ -447,6 +459,7 @@ png_create_write_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
 #endif
   {
      png_free(png_ptr, png_ptr->zbuf);
+      png_ptr->zbuf=NULL;
      png_destroy_struct(png_ptr);
      return ((png_structp)NULL);
   }
@@ -486,7 +499,7 @@ png_create_write_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
        removed from version 2.0.0 and beyond because the previous test
        would have already rejected it. */

-     if (user_png_ver[4] == '6' && user_png_ver[2] == '0' && 
+     if (user_png_ver[4] == '6' && user_png_ver[2] == '0' &&
         user_png_ver[0] == '1' && user_png_ver[5] == '\0')
     {
        png_error(png_ptr,
@@ -737,11 +750,11 @@ png_write_row(png_structp png_ptr, png_bytep row)
      (png_uint_32)png_ptr->row_info.pixel_depth + 7) >> 3);

   png_debug1(3, "row_info->color_type = %d\n", png_ptr->row_info.color_type);
-   png_debug1(3, "row_info->width = %d\n", png_ptr->row_info.width);
+   png_debug1(3, "row_info->width = %lu\n", png_ptr->row_info.width);
   png_debug1(3, "row_info->channels = %d\n", png_ptr->row_info.channels);
   png_debug1(3, "row_info->bit_depth = %d\n", png_ptr->row_info.bit_depth);
   png_debug1(3, "row_info->pixel_depth = %d\n", png_ptr->row_info.pixel_depth);
-   png_debug1(3, "row_info->rowbytes = %d\n", png_ptr->row_info.rowbytes);
+   png_debug1(3, "row_info->rowbytes = %lu\n", png_ptr->row_info.rowbytes);

   /* Copy user's row into buffer, leaving room for filter byte. */
   png_memcpy_check(png_ptr, png_ptr->row_buf + 1, row,
@@ -767,6 +780,24 @@ png_write_row(png_structp png_ptr, png_bytep row)
   if (png_ptr->transformations)
      png_do_write_transformations(png_ptr);

+#if defined(PNG_MNG_FEATURES_SUPPORTED)
+   /* Write filter_method 64 (intrapixel differencing) only if
+    * 1. Libpng was compiled with PNG_MNG_FEATURES_SUPPORTED and
+    * 2. Libpng did not write a PNG signature (this filter_method is only
+    *    used in PNG datastreams that are embedded in MNG datastreams) and
+    * 3. The application called png_permit_mng_features with a mask that
+    *    included PNG_FLAG_MNG_FILTER_64 and
+    * 4. The filter_method is 64 and
+    * 5. The color_type is RGB or RGBA
+    */
+   if((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) &&
+      (png_ptr->filter_type == PNG_INTRAPIXEL_DIFFERENCING))
+   {
+      /* Intrapixel differencing */
+      png_do_write_intrapixel(&(png_ptr->row_info), png_ptr->row_buf + 1);
+   }
+#endif
+
   /* Find a filter if necessary, filter the row and write it out. */
   png_write_find_filter(png_ptr, &(png_ptr->row_info));

@@ -866,6 +897,7 @@ png_destroy_write_struct(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr)
      if (png_ptr->num_chunk_list)
      {
         png_free(png_ptr, png_ptr->chunk_list);
+         png_ptr->chunk_list=NULL;
         png_ptr->num_chunk_list=0;
      }
 #endif
@@ -961,7 +993,11 @@ void PNGAPI
 png_set_filter(png_structp png_ptr, int method, int filters)
 {
   png_debug(1, "in png_set_filter\n");
-   /* We allow 'method' only for future expansion of the base filter method. */
+#if defined(PNG_MNG_FEATURES_SUPPORTED)
+   if((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) &&
+      (method == PNG_INTRAPIXEL_DIFFERENCING))
+         method = PNG_FILTER_TYPE_BASE;
+#endif
   if (method == PNG_FILTER_TYPE_BASE)
   {
      switch (filters & (PNG_ALL_FILTERS | 0x07))
--- a/pngwtran.c
+++ b/pngwtran.c
@@ -1,9 +1,9 @@

 /* pngwtran.c - transforms the data in a row for PNG writers
 *
- * libpng 1.0.8beta3 - July 11, 2000
+ * libpng 1.0.9 - January 31, 2001
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2001 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 */
@@ -498,3 +498,64 @@ png_do_write_invert_alpha(png_row_infop row_info, png_bytep row)
   }
 }
 #endif
+
+#if defined(PNG_MNG_FEATURES_SUPPORTED)
+/* undoes intrapixel differencing  */
+void /* PRIVATE */
+png_do_write_intrapixel(png_row_infop row_info, png_bytep row)
+{
+   png_debug(1, "in png_do_write_intrapixel\n");
+   if (
+#if defined(PNG_USELESS_TESTS_SUPPORTED)
+       row != NULL && row_info != NULL &&
+#endif
+       (row_info->color_type & PNG_COLOR_MASK_COLOR))
+   {
+      int bytes_per_pixel;
+      png_uint_32 row_width = row_info->width;
+      if (row_info->bit_depth == 8)
+      {
+         png_bytep rp;
+         png_uint_32 i;
+
+         if (row_info->color_type == PNG_COLOR_TYPE_RGB)
+            bytes_per_pixel = 3;
+         else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
+            bytes_per_pixel = 4;
+         else
+            return;
+
+         for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel)
+         {
+            *(rp)   = (png_byte)((*rp     - *(rp+1))&0xff);
+            *(rp+2) = (png_byte)((*(rp+2) - *(rp+1))&0xff);
+         }
+      }
+      else if (row_info->bit_depth == 16)
+      {
+         png_bytep rp;
+         png_uint_32 i;
+
+         if (row_info->color_type == PNG_COLOR_TYPE_RGB)
+            bytes_per_pixel = 6;
+         else if (row_info->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
+            bytes_per_pixel = 8;
+         else
+            return;
+
+         for (i = 0, rp = row; i < row_width; i++, rp += bytes_per_pixel)
+         {
+            png_uint_32 s0=*(rp  )<<8 | *(rp+1);
+            png_uint_32 s1=*(rp+2)<<8 | *(rp+3);
+            png_uint_32 s2=*(rp+4)<<8 | *(rp+5);
+            png_uint_32 red=(s0-s1)&0xffff;
+            png_uint_32 blue=(s2-s1)&0xffff;
+            *(rp  ) = (png_byte)((red>>8)&0xff);
+            *(rp+1) = (png_byte)(red&0xff);
+            *(rp+4) = (png_byte)((blue>>8)&0xff);
+            *(rp+5) = (png_byte)(blue&0xff);
+         }
+      }
+   }
+}
+#endif /* PNG_MNG_FEATURES_SUPPORTED */
--- a/pngwutil.c
+++ b/pngwutil.c
@@ -1,9 +1,9 @@

 /* pngwutil.c - utilities to write a PNG file
 *
- * libpng 1.0.8beta3 - July 11, 2000
+ * libpng 1.0.9 - January 31, 2001
 * For conditions of distribution and use, see copyright notice in png.h
- * Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
+ * Copyright (c) 1998-2001 Glenn Randers-Pehrson
 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
 */
@@ -77,7 +77,7 @@ png_write_chunk_start(png_structp png_ptr, png_bytep chunk_name,
   png_uint_32 length)
 {
   png_byte buf[4];
-   png_debug2(0, "Writing %s chunk (%d bytes)\n", chunk_name, length);
+   png_debug2(0, "Writing %s chunk (%lu bytes)\n", chunk_name, length);

   /* write the length */
   png_save_uint_32(buf, length);
@@ -131,6 +131,8 @@ png_write_sig(png_structp png_ptr)
   /* write the rest of the 8 byte signature */
   png_write_data(png_ptr, &png_signature[png_ptr->sig_bytes],
      (png_size_t)8 - png_ptr->sig_bytes);
+   if(png_ptr->sig_bytes < 3)
+      png_ptr->mode |= PNG_HAVE_PNG_SIGNATURE;
 }

 #if defined(PNG_WRITE_TEXT_SUPPORTED) || defined(PNG_WRITE_iCCP_SUPPORTED)
@@ -339,9 +341,11 @@ png_write_compressed_data_out(png_structp png_ptr, compression_state *comp)
      png_write_chunk_data(png_ptr,(png_bytep)comp->output_ptr[i],
         png_ptr->zbuf_size);
      png_free(png_ptr, comp->output_ptr[i]);
+      comp->output_ptr[i]=NULL;
   }
   if (comp->max_output_ptr != 0)
      png_free(png_ptr, comp->output_ptr);
+      comp->output_ptr=NULL;
   /* write anything left in zbuf */
   if (png_ptr->zstream.avail_out < (png_uint_32)png_ptr->zbuf_size)
      png_write_chunk_data(png_ptr, png_ptr->zbuf,
@@ -417,7 +421,24 @@ png_write_IHDR(png_structp png_ptr, png_uint_32 width, png_uint_32 height,
      compression_type = PNG_COMPRESSION_TYPE_BASE;
   }

-   if (filter_type != PNG_FILTER_TYPE_BASE)
+   /* Write filter_method 64 (intrapixel differencing) only if
+    * 1. Libpng was compiled with PNG_MNG_FEATURES_SUPPORTED and
+    * 2. Libpng did not write a PNG signature (this filter_method is only
+    *    used in PNG datastreams that are embedded in MNG datastreams) and
+    * 3. The application called png_permit_mng_features with a mask that
+    *    included PNG_FLAG_MNG_FILTER_64 and
+    * 4. The filter_method is 64 and
+    * 5. The color_type is RGB or RGBA
+    */
+   if (
+#if defined(PNG_MNG_FEATURES_SUPPORTED)
+      !((png_ptr->mng_features_permitted & PNG_FLAG_MNG_FILTER_64) &&
+      ((png_ptr->mode&PNG_HAVE_PNG_SIGNATURE) == 0) &&
+      (color_type == PNG_COLOR_TYPE_RGB || 
+       color_type == PNG_COLOR_TYPE_RGB_ALPHA) &&
+      (filter_type == PNG_INTRAPIXEL_DIFFERENCING)) &&
+#endif
+      filter_type != PNG_FILTER_TYPE_BASE)
   {
      png_warning(png_ptr, "Invalid filter type specified");
      filter_type = PNG_FILTER_TYPE_BASE;
@@ -438,6 +459,7 @@ png_write_IHDR(png_structp png_ptr, png_uint_32 width, png_uint_32 height,
   png_ptr->bit_depth = (png_byte)bit_depth;
   png_ptr->color_type = (png_byte)color_type;
   png_ptr->interlaced = (png_byte)interlace_type;
+   png_ptr->filter_type = (png_byte)filter_type;
   png_ptr->width = width;
   png_ptr->height = height;

@@ -512,8 +534,8 @@ png_write_PLTE(png_structp png_ptr, png_colorp palette, png_uint_32 num_pal)

   png_debug(1, "in png_write_PLTE\n");
   if ((
-#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED
-        !png_ptr->empty_plte_permitted &&
+#if defined(PNG_MNG_FEATURES_SUPPORTED)
+        !(png_ptr->mng_features_permitted & PNG_FLAG_MNG_EMPTY_PLTE) &&
 #endif
        num_pal == 0) || num_pal > 256)
     {
@@ -655,7 +677,7 @@ png_write_iCCP(png_structp png_ptr, png_charp name, int compression_type,
      return;
   }

-   if (compression_type)
+   if (compression_type != PNG_COMPRESSION_TYPE_BASE)
      png_warning(png_ptr, "Unknown compression type in iCCP chunk");

   if (profile == NULL)
@@ -663,11 +685,12 @@ png_write_iCCP(png_structp png_ptr, png_charp name, int compression_type,

   if (profile_len)
       profile_len = png_text_compress(png_ptr, profile, (png_size_t)profile_len,
-          PNG_TEXT_COMPRESSION_zTXt, &comp);
+          PNG_COMPRESSION_TYPE_BASE, &comp);

   /* make sure we include the NULL after the name and the compression type */
   png_write_chunk_start(png_ptr, (png_bytep)png_iCCP,
          (png_uint_32)name_len+profile_len+2);
+   new_name[name_len+1]=0x00;
   png_write_chunk_data(png_ptr, (png_bytep)new_name, name_len + 2);

   if (profile_len)
@@ -994,9 +1017,9 @@ png_write_bKGD(png_structp png_ptr, png_color_16p back, int color_type)
   if (color_type == PNG_COLOR_TYPE_PALETTE)
   {
      if (
-#ifdef PNG_WRITE_EMPTY_PLTE_SUPPORTED
-          (!png_ptr->empty_plte_permitted ||
-          (png_ptr->empty_plte_permitted && png_ptr->num_palette)) &&
+#if defined(PNG_MNG_FEATURES_SUPPORTED)
+          (png_ptr->num_palette ||
+          (!(png_ptr->mng_features_permitted & PNG_FLAG_MNG_EMPTY_PLTE))) &&
 #endif
         back->index > png_ptr->num_palette)
      {
@@ -1069,19 +1092,20 @@ png_check_keyword(png_structp png_ptr, png_charp key, png_charpp new_key)
   png_size_t key_len;
   png_charp kp, dp;
   int kflag;
+   int kwarn=0;

   png_debug(1, "in png_check_keyword\n");
   *new_key = NULL;

   if (key == NULL || (key_len = png_strlen(key)) == 0)
   {
-      png_chunk_warning(png_ptr, "zero length keyword");
+      png_warning(png_ptr, "zero length keyword");
      return ((png_size_t)0);
   }

   png_debug1(2, "Keyword to be checked is '%s'\n", key);

-   *new_key = (png_charp)png_malloc(png_ptr, (png_uint_32)(key_len + 1));
+   *new_key = (png_charp)png_malloc(png_ptr, (png_uint_32)(key_len + 2));

   /* Replace non-printing characters with a blank and print a warning */
   for (kp = key, dp = *new_key; *kp != '\0'; kp++, dp++)
@@ -1092,9 +1116,9 @@ png_check_keyword(png_structp png_ptr, png_charp key, png_charpp new_key)
         char msg[40];

         sprintf(msg, "invalid keyword character 0x%02X", *kp);
-         png_chunk_warning(png_ptr, msg);
+         png_warning(png_ptr, msg);
 #else
-         png_chunk_warning(png_ptr, "invalid character in keyword");
+         png_warning(png_ptr, "invalid character in keyword");
 #endif
         *dp = ' ';
      }
@@ -1109,7 +1133,7 @@ png_check_keyword(png_structp png_ptr, png_charp key, png_charpp new_key)
   kp = *new_key + key_len - 1;
   if (*kp == ' ')
   {
-      png_chunk_warning(png_ptr, "trailing spaces removed from keyword");
+      png_warning(png_ptr, "trailing spaces removed from keyword");

      while (*kp == ' ')
      {
@@ -1122,7 +1146,7 @@ png_check_keyword(png_structp png_ptr, png_charp key, png_charpp new_key)
   kp = *new_key;
   if (*kp == ' ')
   {
-      png_chunk_warning(png_ptr, "leading spaces removed from keyword");
+      png_warning(png_ptr, "leading spaces removed from keyword");

      while (*kp == ' ')
      {
@@ -1144,6 +1168,7 @@ png_check_keyword(png_structp png_ptr, png_charp key, png_charpp new_key)
      else if (*kp == ' ')
      {
         key_len--;
+         kwarn=1;
      }
      else
      {
@@ -1152,17 +1177,19 @@ png_check_keyword(png_structp png_ptr, png_charp key, png_charpp new_key)
      }
   }
   *dp = '\0';
+   if(kwarn)
+      png_warning(png_ptr, "extra interior spaces removed from keyword");

   if (key_len == 0)
   {
      png_free(png_ptr, *new_key);
      *new_key=NULL;
-      png_chunk_warning(png_ptr, "Zero length keyword");
+      png_warning(png_ptr, "Zero length keyword");
   }

   if (key_len > 79)
   {
-      png_chunk_warning(png_ptr, "keyword length must be 1 - 79 characters");
+      png_warning(png_ptr, "keyword length must be 1 - 79 characters");
      new_key[79] = '\0';
      key_len = 79;
   }
@@ -1400,7 +1427,7 @@ png_write_pCAL(png_structp png_ptr, png_charp purpose, png_int_32 X0,
   for (i = 0; i < nparams; i++)
   {
      params_len[i] = png_strlen(params[i]) + (i == nparams - 1 ? 0 : 1);
-      png_debug2(3, "pCAL parameter %d length = %d\n", i, params_len[i]);
+      png_debug2(3, "pCAL parameter %d length = %lu\n", i, params_len[i]);
      total_len += (png_size_t)params_len[i];
   }

@@ -2551,6 +2578,7 @@ png_write_filtered_row(png_structp png_ptr, png_bytep filtered_row)
   png_debug(1, "in png_write_filtered_row\n");
   png_debug1(2, "filter = %d\n", filtered_row[0]);
   /* set up the zlib input buffer */
+
   png_ptr->zstream.next_in = filtered_row;
   png_ptr->zstream.avail_in = (uInt)png_ptr->row_info.rowbytes + 1;
   /* repeat until we have compressed all the data */
--- a/projects/borland/libpng.bpf
+++ b/projects/borland/libpng.bpf
@@ -0,0 +1,22 @@
+USEUNIT("libpng.cpp");
+USEUNIT("..\..\pngwutil.c");
+USEUNIT("..\..\pngerror.c");
+USEUNIT("..\..\pngget.c");
+USEUNIT("..\..\pngmem.c");
+USEUNIT("..\..\pngpread.c");
+USEUNIT("..\..\pngread.c");
+USEUNIT("..\..\pngrio.c");
+USEUNIT("..\..\pngrtran.c");
+USEUNIT("..\..\pngrutil.c");
+USEUNIT("..\..\pngset.c");
+USEUNIT("..\..\pngtrans.c");
+USEUNIT("..\..\pngwio.c");
+USEUNIT("..\..\pngwrite.c");
+USEUNIT("..\..\pngwtran.c");
+USEUNIT("..\..\png.c");
+USELIB("zlib.lib");
+//---------------------------------------------------------------------------
+This file is used by the project manager only and should be treated like the project file
+
+
+DllEntryPoint
--- a/projects/borland/libpng.bpg
+++ b/projects/borland/libpng.bpg
@@ -0,0 +1,25 @@
+#------------------------------------------------------------------------------
+VERSION = BWS.01
+#------------------------------------------------------------------------------
+!ifndef ROOT
+ROOT = $(MAKEDIR)\..
+!endif
+#------------------------------------------------------------------------------
+MAKE = $(ROOT)\bin\make.exe -$(MAKEFLAGS) -f$**
+DCC = $(ROOT)\bin\dcc32.exe $**
+BRCC = $(ROOT)\bin\brcc32.exe $**
+#------------------------------------------------------------------------------
+PROJECTS = libpngstat.lib libpng.dll
+#------------------------------------------------------------------------------
+default: $(PROJECTS)
+#------------------------------------------------------------------------------
+
+libpngstat.lib: libpngstat.bpr
+  $(ROOT)\bin\bpr2mak -t$(ROOT)\bin\deflib.bmk $**
+  $(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak
+
+libpng.dll: libpng.bpr
+  $(ROOT)\bin\bpr2mak $**
+  $(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak
+
+
--- a/projects/borland/libpng.bpr
+++ b/projects/borland/libpng.bpr
@@ -0,0 +1,157 @@
+<?xml version='1.0' encoding='utf-8' ?>
+<!-- C++Builder XML Project -->
+<PROJECT>
+  <MACROS>
+    <VERSION value="BCB.05.03"/>
+    <PROJECT value="libpng.dll"/>
+    <OBJFILES value="libpng.obj ..\..\pngwutil.obj ..\..\pngerror.obj ..\..\pngget.obj 
+      ..\..\pngmem.obj ..\..\pngpread.obj ..\..\pngread.obj ..\..\pngrio.obj 
+      ..\..\pngrtran.obj ..\..\pngrutil.obj ..\..\pngset.obj ..\..\pngtrans.obj 
+      ..\..\pngwio.obj ..\..\pngwrite.obj ..\..\pngwtran.obj ..\..\png.obj"/>
+    <RESFILES value=""/>
+    <DEFFILE value=""/>
+    <RESDEPEN value="$(RESFILES)"/>
+    <LIBFILES value="zlib.lib"/>
+    <LIBRARIES value="bcbsmp50.lib dclocx50.lib NMFast50.lib Tee50.lib Vclx50.lib Vcl50.lib"/>
+    <SPARELIBS value="Vcl50.lib Vclx50.lib Tee50.lib NMFast50.lib dclocx50.lib bcbsmp50.lib"/>
+    <PACKAGES value="Vcl50.bpi Vclx50.bpi bcbsmp50.bpi Qrpt50.bpi Vcldb50.bpi Vclbde50.bpi 
+      ibsmp50.bpi vcldbx50.bpi TeeUI50.bpi TeeDB50.bpi Tee50.bpi TeeQR50.bpi 
+      VCLIB50.bpi bcbie50.bpi vclie50.bpi Inetdb50.bpi Inet50.bpi NMFast50.bpi 
+      dclocx50.bpi bcb97axserver50.bpi SIMULUSCOMPONENTS.bpi Simulus2.bpi"/>
+    <PATHCPP value=".;..\.."/>
+    <PATHPAS value=".;"/>
+    <PATHRC value=".;"/>
+    <PATHASM value=".;"/>
+    <DEBUGLIBPATH value="$(BCB)\lib\debug"/>
+    <RELEASELIBPATH value="$(BCB)\lib\release"/>
+    <LINKER value="tlink32"/>
+    <USERDEFINES value="ZLIB_DLL;Z_PREFIX;PNG_BUILD_DLL;PNG_NO_MODULEDEF"/>
+    <SYSDEFINES value="NO_STRICT;_NO_VCL;_RTLDLL"/>
+    <MAINSOURCE value="libpng.bpf"/>
+    <INCLUDEPATH value="..\..;..\..\..\zlib;$(BCB)\include"/>
+    <LIBPATH value="..\..;$(BCB)\lib\obj;$(BCB)\lib"/>
+    <WARNINGS value="-w8092 -w8091 -w8090 -w8089 -w8087 -wprc -wucp -wstv -wstu -wsig -wpin 
+      -wnod -wnak -wdef -wcln -wbbf -wasm -wamp -wamb"/>
+  </MACROS>
+  <OPTIONS>
+    <CFLAG1 value="-WD -O2 -w -Vx -Ve -x- -RT- -X- -a8 -5 -b- -d -k- -vi -tWD -tWM -c"/>
+    <PFLAGS value="-$Y- -$L- -$D- -$C- -v -JPHNE -M"/>
+    <RFLAGS value=""/>
+    <AFLAGS value="/mx /w2 /zn"/>
+    <LFLAGS value="-D&quot;&quot; -aa -Tpd -x -Gn -Gi -w"/>
+  </OPTIONS>
+  <LINKER>
+    <ALLOBJ value="c0d32.obj $(OBJFILES)"/>
+    <ALLRES value="$(RESFILES)"/>
+    <ALLLIB value="$(LIBFILES) $(LIBRARIES) import32.lib cw32mti.lib"/>
+  </LINKER>
+  <IDEOPTIONS>
+[Version Info]
+IncludeVerInfo=0
+AutoIncBuild=0
+MajorVer=1
+MinorVer=0
+Release=0
+Build=0
+Debug=0
+PreRelease=0
+Special=0
+Private=0
+DLL=1
+Locale=2057
+CodePage=1252
+
+[Version Info Keys]
+CompanyName=
+FileDescription=
+FileVersion=1.0.0.0
+InternalName=
+LegalCopyright=
+LegalTrademarks=
+OriginalFilename=
+ProductName=
+ProductVersion=
+Comments=
+
+[HistoryLists\hlIncludePath]
+Count=18
+Item0=..\..;..\..\..\zlib;$(BCB)\include
+Item1=..\..;P:\My Documents\Source\PNG+ZLib\zlib;$(BCB)\include
+Item2=..\..;..\Source\ThirdParty\PortableNetworkGraphics\external;..\Source\ThirdParty\PortableNetworkGraphics;..\Source\ThirdParty\ZLibCompression\external;$(BCB)\include
+Item3=..\Source\ThirdParty\PortableNetworkGraphics\external;..\Source\ThirdParty\PortableNetworkGraphics;..\Source\ThirdParty\ZLibCompression\external;$(BCB)\include
+Item4=..\Source\ThirdParty\PortableNetworkGraphics\external;..\Source\ThirdParty\PortableNetworkGraphics;..\Source\ThirdParty\ZLibCompression;$(BCB)\include
+Item5=..\Source\ThirdParty\PortableNetworkGraphics;..\Source\ThirdParty\ZLibCompression;$(BCB)\include
+Item6=..\Source\ThirdParty\PortableNetworkGraphics;P:\Development\Source\ThirdParty\ZLibCompression;$(BCB)\include
+Item7=..\Source\ThirdParty\PortableNetworkGraphics;$(BCB)\include
+Item8=$(BCB)\include
+Item9=..\Source;..\Source\General\Templates;..\Source\SIMUtilities;$(BCB)\include;$(BCB)\include\vcl
+Item10=P:\Development\Source\;P:\Development\Source\General\Templates\;P:\Development\Source\SIMUtilities\;$(BCB)\include;$(BCB)\include\vcl
+Item11=P:\Development\Source;P:\Development\Source\General\Templates\;P:\Development\Source\SIMUtilities\;$(BCB)\include;$(BCB)\include\vcl
+Item12=P:\Development\Source\General\Templates\;P:\Development\Source\SIMUtilities\;$(BCB)\include;$(BCB)\include\vcl
+Item13=P:\Development\Source\General\Templates\;P:\Development\Source\SIMUtilities;$(BCB)\include;$(BCB)\include\vcl
+Item14=P:\Development\Source\General\Templates\;$(BCB)\include;$(BCB)\include\vcl
+Item15=P:\Development\Source\General\Templates;$(BCB)\include;$(BCB)\include\vcl
+Item16=P:\Development\Source;$(BCB)\include;$(BCB)\include\vcl
+Item17=$(BCB)\include;$(BCB)\include\vcl
+
+[HistoryLists\hlLibraryPath]
+Count=10
+Item0=..\..;$(BCB)\lib\obj;$(BCB)\lib
+Item1=..\..;..\Source\ThirdParty\PortableNetworkGraphics\external;..\Source\ThirdParty\PortableNetworkGraphics;$(BCB)\lib\obj;$(BCB)\lib
+Item2=..\Source\ThirdParty\PortableNetworkGraphics\external;..\Source\ThirdParty\PortableNetworkGraphics;$(BCB)\lib\obj;$(BCB)\lib
+Item3=..\Source\ThirdParty\PortableNetworkGraphics;$(BCB)\lib\obj;$(BCB)\lib
+Item4=$(BCB)\lib\obj;$(BCB)\lib
+Item5=..\Source\SIMUtilities;..\Source;$(BCB)\lib\obj;$(BCB)\lib
+Item6=P:\Development\Source\SIMUtilities\;P:\Development\Source\;$(BCB)\lib\obj;$(BCB)\lib
+Item7=P:\Development\Source\SIMUtilities;P:\Development\Source\;$(BCB)\lib\obj;$(BCB)\lib
+Item8=P:\Development\Source\;$(BCB)\lib\obj;$(BCB)\lib
+Item9=P:\Development\Source;$(BCB)\lib\obj;$(BCB)\lib
+
+[HistoryLists\hlDebugSourcePath]
+Count=1
+Item0=$(BCB)\source\vcl
+
+[HistoryLists\hlConditionals]
+Count=20
+Item0=ZLIB_DLL;Z_PREFIX;PNG_BUILD_DLL;PNG_NO_MODULEDEF
+Item1=_DEBUG;ZLIB_DLL;Z_PREFIX;PNG_BUILD_DLL;PNG_NO_MODULEDEF
+Item2=PNG_BUILD_DLL;ZLIB_DLL;_DEBUG;PNG_NO_MODULEDEF
+Item3=PNG_BUILD_DLL;ZLIB_DLL;_DEBUG;PNG_DEBUG=5;PNG_NO_MODULEDEF;PNG_NO_GLOBAL_ARRAYS
+Item4=PNG_BUILD_DLL;ZLIB_DLL;_DEBUG;PNG_DEBUG=5;PNG_NO_MODULEDEF;PNG_SETJMP_NOT_SUPPORTED;PNG_DEBUG_FILE=stderr
+Item5=PNG_BUILD_DLL;ZLIB_DLL;_DEBUG;PNG_DEBUG;PNG_NO_MODULEDEF;PNG_SETJMP_NOT_SUPPORTED
+Item6=PNG_BUILD_DLL;ZLIB_DLL;_DEBUG;PNG_DEBUG=5;PNG_NO_MODULEDEF;PNG_SETJMP_NOT_SUPPORTED
+Item7=PNG_BUILD_DLL;ZLIB_DLL;_DEBUG;PNG_DEBUG=5;PNG_NO_MODULEDEF
+Item8=PNG_BUILD_DLL;ZLIB_DLL;_DEBUG;PNG_DEBUG=5
+Item9=PNG_BUILD_DLL;ZLIB_DLL;_DEBUG
+Item10=PNG_BUILD_DLL;ZLIB_DLL
+Item11=PNG_BUILD_DLL
+Item12=PNG_DLL;PNG_BUILD_DLL;ZLIB_DLL
+Item13=PNG_DLL;PNG_BUILD_DLL;PNG_NO_GLOBAL_ARRAYS;ZLIB_DLL
+Item14=PNG_DLL;PNG_BUILD_DLL;PNG_NO_GLOBAL_ARRAYS
+Item15=PNG_DLL;PNG_BUILD_DLL
+Item16=PNG_DLL;PNG_BUILD_DLL;PNG_MODULEDEF
+Item17=_HTML_FORM
+Item18=_DEBUG;_HTML_FORM
+Item19=_DEBUG
+
+[HistoryLists\hlIntOutputDir]
+Count=2
+Item0=..\Obj
+Item1=P:\Development\Obj
+
+[Debugging]
+DebugSourceDirs=
+
+[Parameters]
+RunParams=
+HostApplication=P:\Development\Executables\LibPNGTestApp.exe
+RemoteHost=
+RemotePath=
+RemoteDebug=0
+
+[Compiler]
+ShowInfoMsgs=0
+LinkDebugVcl=0
+LinkCGLIB=0
+  </IDEOPTIONS>
+</PROJECT>
--- a/projects/borland/libpng.cpp
+++ b/projects/borland/libpng.cpp
@@ -0,0 +1,29 @@
+//---------------------------------------------------------------------------
+#include <windows.h>
+//---------------------------------------------------------------------------
+//   Important note about DLL memory management when your DLL uses the
+//   static version of the RunTime Library:
+//
+//   If your DLL exports any functions that pass String objects (or structs/
+//   classes containing nested Strings) as parameter or function results,
+//   you will need to add the library MEMMGR.LIB to both the DLL project and
+//   any other projects that use the DLL.  You will also need to use MEMMGR.LIB
+//   if any other projects which use the DLL will be performing new or delete
+//   operations on any non-TObject-derived classes which are exported from the
+//   DLL. Adding MEMMGR.LIB to your project will change the DLL and its calling
+//   EXE's to use the BORLNDMM.DLL as their memory manager.  In these cases,
+//   the file BORLNDMM.DLL should be deployed along with your DLL.
+//
+//   To avoid using BORLNDMM.DLL, pass string information using "char *" or
+//   ShortString parameters.
+//
+//   If your DLL uses the dynamic version of the RTL, you do not need to
+//   explicitly add MEMMGR.LIB as this will be done implicitly for you
+//---------------------------------------------------------------------------
+
+int WINAPI DllEntryPoint(HINSTANCE, unsigned long, void*)
+{
+    return 1;
+}
+//---------------------------------------------------------------------------
+ 
--- a/projects/borland/libpng.readme.txt
+++ b/projects/borland/libpng.readme.txt
@@ -0,0 +1,19 @@
+Project files to build libpng using Borland C++ Builder v5.0
+
+To use this dll, you will need to:
+
+1) add the following conditional defines to your project
+
+PNG_USE_DLL
+Z_PREFIX
+
+2) add the paths to png.h and zlib.h to your include path
+
+3) add libpng.lib or libpngstat.lib to the project.
+
+If you are using libpng.dll, libpng.dll and zlib.dll will be required for the code to run.
+
+Alternatively, the libpng.dll can be built using zlibstat.lib to produce one dll containing both the zlib and png code.
+
+See the libpng documentation for instructions on how to use the code.
+
--- a/projects/borland/libpngstat.bpf
+++ b/projects/borland/libpngstat.bpf
@@ -0,0 +1,22 @@
+USELIB("zlibstat.lib");
+USEUNIT("..\..\pngerror.c");
+USEUNIT("..\..\png.c");
+USEUNIT("..\..\pngwutil.c");
+USEUNIT("..\..\pngmem.c");
+USEUNIT("..\..\pngpread.c");
+USEUNIT("..\..\pngread.c");
+USEUNIT("..\..\pngrio.c");
+USEUNIT("..\..\pngrtran.c");
+USEUNIT("..\..\pngrutil.c");
+USEUNIT("..\..\pngset.c");
+USEUNIT("..\..\pngtrans.c");
+USEUNIT("..\..\pngwio.c");
+USEUNIT("..\..\pngwrite.c");
+USEUNIT("..\..\pngwtran.c");
+USEUNIT("..\..\pngget.c");
+//---------------------------------------------------------------------------
+#define Library
+
+// To add a file to the library use the Project menu 'Add to Project'.
+
+ 
--- a/projects/borland/libpngstat.bpr
+++ b/projects/borland/libpngstat.bpr
@@ -0,0 +1,109 @@
+<?xml version='1.0' encoding='utf-8' ?>
+<!-- C++Builder XML Project -->
+<PROJECT>
+  <MACROS>
+    <VERSION value="BCB.05.03"/>
+    <PROJECT value="libpngstat.lib"/>
+    <OBJFILES value="..\..\pngerror.obj ..\..\png.obj ..\..\pngwutil.obj ..\..\pngmem.obj 
+      ..\..\pngpread.obj ..\..\pngread.obj ..\..\pngrio.obj ..\..\pngrtran.obj 
+      ..\..\pngrutil.obj ..\..\pngset.obj ..\..\pngtrans.obj ..\..\pngwio.obj 
+      ..\..\pngwrite.obj ..\..\pngwtran.obj ..\..\pngget.obj"/>
+    <RESFILES value=""/>
+    <DEFFILE value=""/>
+    <RESDEPEN value="$(RESFILES)"/>
+    <LIBFILES value="zlibstat.lib"/>
+    <LIBRARIES value=""/>
+    <PACKAGES value=""/>
+    <PATHCPP value=".;..\.."/>
+    <PATHPAS value=".;"/>
+    <PATHRC value=".;"/>
+    <PATHASM value=".;"/>
+    <LINKER value="TLib"/>
+    <USERDEFINES value=""/>
+    <SYSDEFINES value="_RTLDLL;NO_STRICT"/>
+    <MAINSOURCE value="libpngstat.bpf"/>
+    <INCLUDEPATH value="..\..;..\..\..\zlib;$(BCB)\include"/>
+    <LIBPATH value="..\..;$(BCB)\lib\obj;$(BCB)\lib"/>
+    <WARNINGS value="-w-par"/>
+    <LISTFILE value=""/>
+  </MACROS>
+  <OPTIONS>
+    <CFLAG1 value="-O2 -w -Vx -Ve -X- -a8 -5 -b- -d -k- -vi -c -tW -tWM"/>
+    <PFLAGS value="-$Y- -$L- -$D- -$C- -v -JPHNE -M"/>
+    <AFLAGS value="/mx /w2 /zn"/>
+    <LFLAGS value=""/>
+  </OPTIONS>
+  <LINKER>
+    <ALLOBJ value="$(OBJFILES)"/>
+    <ALLLIB value=""/>
+  </LINKER>
+  <IDEOPTIONS>
+[Version Info]
+IncludeVerInfo=0
+AutoIncBuild=0
+MajorVer=1
+MinorVer=0
+Release=0
+Build=0
+Debug=0
+PreRelease=0
+Special=0
+Private=0
+DLL=0
+Locale=2057
+CodePage=1252
+
+[Version Info Keys]
+CompanyName=
+FileDescription=
+FileVersion=1.0.0.0
+InternalName=
+LegalCopyright=
+LegalTrademarks=
+OriginalFilename=
+ProductName=
+ProductVersion=1.0.0.0
+Comments=
+
+[HistoryLists\hlIncludePath]
+Count=2
+Item0=..\..;P:\My Documents\Source\PNG+ZLib\zlib;$(BCB)\include
+Item1=..\..;$(BCB)\include;$(BCB)\include\vcl
+
+[HistoryLists\hlLibraryPath]
+Count=1
+Item0=..\..;$(BCB)\lib\obj;$(BCB)\lib
+
+[HistoryLists\hlDebugSourcePath]
+Count=1
+Item0=$(BCB)\source\vcl
+
+[HistoryLists\hlConditionals]
+Count=1
+Item0=_DEBUG
+
+[HistoryLists\hlTlibPageSize]
+Count=1
+Item0=0x0010
+
+[Debugging]
+DebugSourceDirs=$(BCB)\source\vcl
+
+[Parameters]
+RunParams=
+HostApplication=
+RemoteHost=
+RemotePath=
+RemoteDebug=0
+
+[Compiler]
+ShowInfoMsgs=0
+LinkDebugVcl=0
+LinkCGLIB=0
+
+[Language]
+ActiveLang=
+ProjectLang=
+RootDir=
+  </IDEOPTIONS>
+</PROJECT>
--- a/projects/borland/zlib+libpng.bpg
+++ b/projects/borland/zlib+libpng.bpg
@@ -0,0 +1,33 @@
+#------------------------------------------------------------------------------
+VERSION = BWS.01
+#------------------------------------------------------------------------------
+!ifndef ROOT
+ROOT = $(MAKEDIR)\..
+!endif
+#------------------------------------------------------------------------------
+MAKE = $(ROOT)\bin\make.exe -$(MAKEFLAGS) -f$**
+DCC = $(ROOT)\bin\dcc32.exe $**
+BRCC = $(ROOT)\bin\brcc32.exe $**
+#------------------------------------------------------------------------------
+PROJECTS = zlibstat.lib libpngstat.lib zlib.dll libpng.dll
+#------------------------------------------------------------------------------
+default: $(PROJECTS)
+#------------------------------------------------------------------------------
+
+libpng.dll: libpng.bpr
+  $(ROOT)\bin\bpr2mak $**
+  $(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak
+
+zlibstat.lib: zlibstat.bpr
+  $(ROOT)\bin\bpr2mak -t$(ROOT)\bin\deflib.bmk $**
+  $(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak
+
+zlib.dll: zlib.bpr
+  $(ROOT)\bin\bpr2mak $**
+  $(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak
+
+libpngstat.lib: libpngstat.bpr
+  $(ROOT)\bin\bpr2mak -t$(ROOT)\bin\deflib.bmk $**
+  $(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak
+
+
--- a/projects/borland/zlib.bpf
+++ b/projects/borland/zlib.bpf
@@ -0,0 +1,20 @@
+USEUNIT("zlib.cpp");
+USEUNIT("..\..\..\zlib\zutil.c");
+USEUNIT("..\..\..\zlib\compress.c");
+USEUNIT("..\..\..\zlib\crc32.c");
+USEUNIT("..\..\..\zlib\deflate.c");
+USEUNIT("..\..\..\zlib\gzio.c");
+USEUNIT("..\..\..\zlib\infblock.c");
+USEUNIT("..\..\..\zlib\infcodes.c");
+USEUNIT("..\..\..\zlib\inffast.c");
+USEUNIT("..\..\..\zlib\inflate.c");
+USEUNIT("..\..\..\zlib\inftrees.c");
+USEUNIT("..\..\..\zlib\infutil.c");
+USEUNIT("..\..\..\zlib\trees.c");
+USEUNIT("..\..\..\zlib\uncompr.c");
+USEUNIT("..\..\..\zlib\adler32.c");
+//---------------------------------------------------------------------------
+This file is used by the project manager only and should be treated like the project file
+
+
+DllEntryPoint
--- a/projects/borland/zlib.bpg
+++ b/projects/borland/zlib.bpg
@@ -0,0 +1,25 @@
+#------------------------------------------------------------------------------
+VERSION = BWS.01
+#------------------------------------------------------------------------------
+!ifndef ROOT
+ROOT = $(MAKEDIR)\..
+!endif
+#------------------------------------------------------------------------------
+MAKE = $(ROOT)\bin\make.exe -$(MAKEFLAGS) -f$**
+DCC = $(ROOT)\bin\dcc32.exe $**
+BRCC = $(ROOT)\bin\brcc32.exe $**
+#------------------------------------------------------------------------------
+PROJECTS = zlibstat.lib zlib.dll
+#------------------------------------------------------------------------------
+default: $(PROJECTS)
+#------------------------------------------------------------------------------
+
+zlibstat.lib: zlibstat.bpr
+  $(ROOT)\bin\bpr2mak -t$(ROOT)\bin\deflib.bmk $**
+  $(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak
+
+zlib.dll: zlib.bpr
+  $(ROOT)\bin\bpr2mak $**
+  $(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak
+
+
--- a/projects/borland/zlib.bpr
+++ b/projects/borland/zlib.bpr
@@ -0,0 +1,147 @@
+<?xml version='1.0' encoding='utf-8' ?>
+<!-- C++Builder XML Project -->
+<PROJECT>
+  <MACROS>
+    <VERSION value="BCB.05.03"/>
+    <PROJECT value="zlib.dll"/>
+    <OBJFILES value="zlib.obj ..\..\..\zlib\zutil.obj ..\..\..\zlib\compress.obj 
+      ..\..\..\zlib\crc32.obj ..\..\..\zlib\deflate.obj ..\..\..\zlib\gzio.obj 
+      ..\..\..\zlib\infblock.obj ..\..\..\zlib\infcodes.obj 
+      ..\..\..\zlib\inffast.obj ..\..\..\zlib\inflate.obj 
+      ..\..\..\zlib\inftrees.obj ..\..\..\zlib\infutil.obj 
+      ..\..\..\zlib\trees.obj ..\..\..\zlib\uncompr.obj ..\..\..\zlib\adler32.obj"/>
+    <RESFILES value=""/>
+    <DEFFILE value=""/>
+    <RESDEPEN value="$(RESFILES)"/>
+    <LIBFILES value=""/>
+    <LIBRARIES value="bcbsmp50.lib dclocx50.lib NMFast50.lib Tee50.lib Vclx50.lib Vcl50.lib"/>
+    <SPARELIBS value="Vcl50.lib Vclx50.lib Tee50.lib NMFast50.lib dclocx50.lib bcbsmp50.lib"/>
+    <PACKAGES value="Vcl50.bpi Vclx50.bpi bcbsmp50.bpi Qrpt50.bpi Vcldb50.bpi Vclbde50.bpi 
+      ibsmp50.bpi vcldbx50.bpi TeeUI50.bpi TeeDB50.bpi Tee50.bpi TeeQR50.bpi 
+      VCLIB50.bpi bcbie50.bpi vclie50.bpi Inetdb50.bpi Inet50.bpi NMFast50.bpi 
+      dclocx50.bpi bcb97axserver50.bpi SIMULUSCOMPONENTS.bpi Simulus2.bpi"/>
+    <PATHCPP value=".;..\..\..\zlib"/>
+    <PATHPAS value=".;"/>
+    <PATHRC value=".;"/>
+    <PATHASM value=".;"/>
+    <DEBUGLIBPATH value="$(BCB)\lib\debug"/>
+    <RELEASELIBPATH value="$(BCB)\lib\release"/>
+    <LINKER value="tlink32"/>
+    <USERDEFINES value="ZLIB_DLL;Z_PREFIX"/>
+    <SYSDEFINES value="NO_STRICT;_NO_VCL;_RTLDLL"/>
+    <MAINSOURCE value="zlib.bpf"/>
+    <INCLUDEPATH value="..\..\..\zlib;$(BCB)\include"/>
+    <LIBPATH value="..\..\..\zlib;$(BCB)\lib\obj;$(BCB)\lib"/>
+    <WARNINGS value="-w8092 -w8091 -w8090 -w8089 -w8087 -wprc -wuse -wucp -wstv -wstu -wpin 
+      -w-par -wnod -wnak -wdef -wcln -wbbf -w-aus -wasm -wamp -wamb"/>
+  </MACROS>
+  <OPTIONS>
+    <CFLAG1 value="-WD -O2 -w -Vx -Ve -x- -RT- -ff -X- -a8 -5 -b- -d -k- -vi -tWD -tWM -c"/>
+    <PFLAGS value="-$Y- -$L- -$D- -$C- -v -JPHNE -M"/>
+    <RFLAGS value=""/>
+    <AFLAGS value="/mx /w2 /zn"/>
+    <LFLAGS value="-D&quot;&quot; -aa -Tpd -x -Gn -Gi -w"/>
+  </OPTIONS>
+  <LINKER>
+    <ALLOBJ value="c0d32.obj $(OBJFILES)"/>
+    <ALLRES value="$(RESFILES)"/>
+    <ALLLIB value="$(LIBFILES) $(LIBRARIES) import32.lib cw32mti.lib"/>
+  </LINKER>
+  <IDEOPTIONS>
+[Version Info]
+IncludeVerInfo=0
+AutoIncBuild=0
+MajorVer=1
+MinorVer=0
+Release=0
+Build=0
+Debug=0
+PreRelease=0
+Special=0
+Private=0
+DLL=1
+Locale=2057
+CodePage=1252
+
+[Version Info Keys]
+CompanyName=
+FileDescription=
+FileVersion=1.0.0.0
+InternalName=
+LegalCopyright=
+LegalTrademarks=
+OriginalFilename=
+ProductName=
+ProductVersion=1.0.0.0
+Comments=
+
+[HistoryLists\hlIncludePath]
+Count=16
+Item0=..\..\..\zlib;$(BCB)\include
+Item1=..\..\..;..\Source\ThirdParty\ZLibCompression\external;..\Source\ThirdParty\ZLibCompression;..\..\..\zlib;$(BCB)\include
+Item2=..\Source\ThirdParty\ZLibCompression\external;..\Source\ThirdParty\ZLibCompression;..\..\..\zlib;$(BCB)\include
+Item3=P:\My Documents\Source\PNG+ZLib\zlib;$(BCB)\include
+Item4=..\Source\ThirdParty\ZLibCompression\external;..\Source\ThirdParty\ZLibCompression;$(BCB)\include
+Item5=..\Source\ThirdParty\ZLibCompression;$(BCB)\include
+Item6=$(BCB)\include
+Item7=..\Source;..\Source\General\Templates;..\Source\SIMUtilities;$(BCB)\include;$(BCB)\include\vcl
+Item8=P:\Development\Source\;P:\Development\Source\General\Templates\;P:\Development\Source\SIMUtilities\;$(BCB)\include;$(BCB)\include\vcl
+Item9=P:\Development\Source;P:\Development\Source\General\Templates\;P:\Development\Source\SIMUtilities\;$(BCB)\include;$(BCB)\include\vcl
+Item10=P:\Development\Source\General\Templates\;P:\Development\Source\SIMUtilities\;$(BCB)\include;$(BCB)\include\vcl
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+Item12=P:\Development\Source\General\Templates\;$(BCB)\include;$(BCB)\include\vcl
+Item13=P:\Development\Source\General\Templates;$(BCB)\include;$(BCB)\include\vcl
+Item14=P:\Development\Source;$(BCB)\include;$(BCB)\include\vcl
+Item15=$(BCB)\include;$(BCB)\include\vcl
+
+[HistoryLists\hlLibraryPath]
+Count=12
+Item0=..\..\..\zlib;$(BCB)\lib\obj;$(BCB)\lib
+Item1=..\..\..;..\Source\ThirdParty\ZLibCompression\external;..\Source\ThirdParty\ZLibCompression;..\..\..\zlib;$(BCB)\lib\obj;$(BCB)\lib
+Item2=..\Source\ThirdParty\ZLibCompression\external;..\Source\ThirdParty\ZLibCompression;..\..\..\zlib;$(BCB)\lib\obj;$(BCB)\lib
+Item3=P:\My Documents\Source\PNG+ZLib\zlib;$(BCB)\lib\obj;$(BCB)\lib
+Item4=..\Source\ThirdParty\ZLibCompression\external;..\Source\ThirdParty\ZLibCompression;$(BCB)\lib\obj;$(BCB)\lib
+Item5=$(BCB)\lib\obj;$(BCB)\lib
+Item6=..\Source\ThirdParty\ZLibCompression;$(BCB)\lib\obj;$(BCB)\lib
+Item7=..\Source\SIMUtilities;..\Source;$(BCB)\lib\obj;$(BCB)\lib
+Item8=P:\Development\Source\SIMUtilities\;P:\Development\Source\;$(BCB)\lib\obj;$(BCB)\lib
+Item9=P:\Development\Source\SIMUtilities;P:\Development\Source\;$(BCB)\lib\obj;$(BCB)\lib
+Item10=P:\Development\Source\;$(BCB)\lib\obj;$(BCB)\lib
+Item11=P:\Development\Source;$(BCB)\lib\obj;$(BCB)\lib
+
+[HistoryLists\hlDebugSourcePath]
+Count=1
+Item0=$(BCB)\source\vcl
+
+[HistoryLists\hlConditionals]
+Count=8
+Item0=ZLIB_DLL;Z_PREFIX
+Item1=ZLIB_DLL;_DEBUG;Z_PREFIX
+Item2=ZLIB_DLL;_DEBUG
+Item3=ZLIB_DLL
+Item4=_WINDOWS;ZLIB_DLL
+Item5=_HTML_FORM
+Item6=_DEBUG;_HTML_FORM
+Item7=_DEBUG
+
+[HistoryLists\hlIntOutputDir]
+Count=2
+Item0=..\Obj
+Item1=P:\Development\Obj
+
+[Debugging]
+DebugSourceDirs=
+
+[Parameters]
+RunParams=
+HostApplication=
+RemoteHost=
+RemotePath=
+RemoteDebug=0
+
+[Compiler]
+ShowInfoMsgs=0
+LinkDebugVcl=0
+LinkCGLIB=0
+  </IDEOPTIONS>
+</PROJECT>
--- a/projects/borland/zlib.cpp
+++ b/projects/borland/zlib.cpp
@@ -0,0 +1,30 @@
+//---------------------------------------------------------------------------
+
+#include <windows.h>
+//---------------------------------------------------------------------------
+//   Important note about DLL memory management when your DLL uses the
+//   static version of the RunTime Library:
+//
+//   If your DLL exports any functions that pass String objects (or structs/
+//   classes containing nested Strings) as parameter or function results,
+//   you will need to add the library MEMMGR.LIB to both the DLL project and
+//   any other projects that use the DLL.  You will also need to use MEMMGR.LIB
+//   if any other projects which use the DLL will be performing new or delete
+//   operations on any non-TObject-derived classes which are exported from the
+//   DLL. Adding MEMMGR.LIB to your project will change the DLL and its calling
+//   EXE's to use the BORLNDMM.DLL as their memory manager.  In these cases,
+//   the file BORLNDMM.DLL should be deployed along with your DLL.
+//
+//   To avoid using BORLNDMM.DLL, pass string information using "char *" or
+//   ShortString parameters.
+//
+//   If your DLL uses the dynamic version of the RTL, you do not need to
+//   explicitly add MEMMGR.LIB as this will be done implicitly for you
+//---------------------------------------------------------------------------
+
+int WINAPI DllEntryPoint(HINSTANCE, unsigned long, void*)
+{
+    return 1;
+}
+//---------------------------------------------------------------------------
+ 
--- a/projects/borland/zlibstat.bpf
+++ b/projects/borland/zlibstat.bpf
@@ -0,0 +1,20 @@
+USEUNIT("..\..\..\zlib\zutil.c");
+USEUNIT("..\..\..\zlib\compress.c");
+USEUNIT("..\..\..\zlib\crc32.c");
+USEUNIT("..\..\..\zlib\deflate.c");
+USEUNIT("..\..\..\zlib\gzio.c");
+USEUNIT("..\..\..\zlib\infblock.c");
+USEUNIT("..\..\..\zlib\infcodes.c");
+USEUNIT("..\..\..\zlib\inffast.c");
+USEUNIT("..\..\..\zlib\inflate.c");
+USEUNIT("..\..\..\zlib\inftrees.c");
+USEUNIT("..\..\..\zlib\infutil.c");
+USEUNIT("..\..\..\zlib\trees.c");
+USEUNIT("..\..\..\zlib\uncompr.c");
+USEUNIT("..\..\..\zlib\adler32.c");
+//---------------------------------------------------------------------------
+#define Library
+
+// To add a file to the library use the Project menu 'Add to Project'.
+
+ 
--- a/projects/borland/zlibstat.bpr
+++ b/projects/borland/zlibstat.bpr
@@ -0,0 +1,131 @@
+<?xml version='1.0' encoding='utf-8' ?>
+<!-- C++Builder XML Project -->
+<PROJECT>
+  <MACROS>
+    <VERSION value="BCB.05.03"/>
+    <PROJECT value="zlibstat.lib"/>
+    <OBJFILES value="..\..\..\zlib\zutil.obj ..\..\..\zlib\compress.obj ..\..\..\zlib\crc32.obj 
+      ..\..\..\zlib\deflate.obj ..\..\..\zlib\gzio.obj 
+      ..\..\..\zlib\infblock.obj ..\..\..\zlib\infcodes.obj 
+      ..\..\..\zlib\inffast.obj ..\..\..\zlib\inflate.obj 
+      ..\..\..\zlib\inftrees.obj ..\..\..\zlib\infutil.obj 
+      ..\..\..\zlib\trees.obj ..\..\..\zlib\uncompr.obj ..\..\..\zlib\adler32.obj"/>
+    <RESFILES value=""/>
+    <DEFFILE value=""/>
+    <RESDEPEN value="$(RESFILES)"/>
+    <LIBFILES value=""/>
+    <LIBRARIES value=""/>
+    <PACKAGES value=""/>
+    <PATHCPP value=".;..\..\..\zlib"/>
+    <PATHPAS value=".;"/>
+    <PATHRC value=".;"/>
+    <PATHASM value=".;"/>
+    <LINKER value="TLib"/>
+    <USERDEFINES value="Z_PREFIX"/>
+    <SYSDEFINES value="_RTLDLL;NO_STRICT"/>
+    <MAINSOURCE value="zlibstat.bpf"/>
+    <INCLUDEPATH value="..\..\..\zlib;$(BCB)\include"/>
+    <LIBPATH value="..\..\..\zlib;$(BCB)\lib\obj;$(BCB)\lib"/>
+    <WARNINGS value="-w8092 -w8091 -w8090 -w8089 -w8087 -wprc -wuse -wucp -wstv -wstu -wpin 
+      -wnod -wnak -wdef -wcln -wbbf -w-aus -wasm -wamp -wamb"/>
+    <LISTFILE value=""/>
+  </MACROS>
+  <OPTIONS>
+    <CFLAG1 value="-O2 -w -Vx -Ve -x- -RT- -X- -a8 -5 -b- -d -k- -vi -c -tW -tWM"/>
+    <PFLAGS value="-$Y- -$L- -$D- -$C- -v -JPHNE -M"/>
+    <AFLAGS value="/mx /w2 /zn"/>
+    <LFLAGS value=""/>
+  </OPTIONS>
+  <LINKER>
+    <ALLOBJ value="$(OBJFILES)"/>
+    <ALLLIB value=""/>
+  </LINKER>
+  <IDEOPTIONS>
+[Version Info]
+IncludeVerInfo=0
+AutoIncBuild=0
+MajorVer=1
+MinorVer=0
+Release=0
+Build=0
+Debug=0
+PreRelease=0
+Special=0
+Private=0
+DLL=0
+Locale=2057
+CodePage=1252
+
+[Version Info Keys]
+CompanyName=
+FileDescription=
+FileVersion=1.0.0.0
+InternalName=
+LegalCopyright=
+LegalTrademarks=
+OriginalFilename=
+ProductName=
+ProductVersion=1.0.0.0
+Comments=
+
+[HistoryLists\hlIncludePath]
+Count=8
+Item0=..\..\..\zlib;$(BCB)\include
+Item1=..\Source\ThirdParty\ZLibCompression\external;..\..\..\zlib;$(BCB)\include
+Item2=P:\My Documents\Source\PNG+ZLib\zlib;$(BCB)\include
+Item3=..\Source\ThirdParty\ZLibCompression\external;$(BCB)\include
+Item4=..\Source\ThirdParty\ZLibCompression\external;..\Source\ThirdParty\ZLibCompression\ext;..\Source\ThirdParty\ZLibCompression;$(BCB)\include
+Item5=..\Source\ThirdParty\ZLibCompression;$(BCB)\include
+Item6=$(BCB)\include
+Item7=$(BCB)\include;$(BCB)\include\vcl
+
+[HistoryLists\hlLibraryPath]
+Count=7
+Item0=..\..\..\zlib;$(BCB)\lib\obj;$(BCB)\lib
+Item1=$(BCB)\lib\obj;$(BCB)\lib
+Item2=..\Source\ThirdParty\ZLibCompression\external;..\..\..\zlib;$(BCB)\lib\obj;$(BCB)\lib
+Item3=P:\My Documents\Source\PNG+ZLib\zlib;$(BCB)\lib\obj;$(BCB)\lib
+Item4=..\Source\ThirdParty\ZLibCompression\external;$(BCB)\lib\obj;$(BCB)\lib
+Item5=..\Source\ThirdParty\ZLibCompression\external;..\Source\ThirdParty\ZLibCompression\ext;..\Source\ThirdParty\ZLibCompression;$(BCB)\lib\obj;$(BCB)\lib
+Item6=..\Source\ThirdParty\ZLibCompression;$(BCB)\lib\obj;$(BCB)\lib
+
+[HistoryLists\hlDebugSourcePath]
+Count=1
+Item0=$(BCB)\source\vcl
+
+[HistoryLists\hlConditionals]
+Count=3
+Item0=Z_PREFIX
+Item1=ZLIB_DLL
+Item2=_WINDOWS;ZLIB_DLL
+
+[HistoryLists\hlIntOutputDir]
+Count=2
+Item0=..\Obj
+Item1=P:\Development\Obj
+
+[HistoryLists\hlTlibPageSize]
+Count=1
+Item0=0x0010
+
+[Debugging]
+DebugSourceDirs=
+
+[Parameters]
+RunParams=
+HostApplication=
+RemoteHost=
+RemotePath=
+RemoteDebug=0
+
+[Compiler]
+ShowInfoMsgs=0
+LinkDebugVcl=0
+LinkCGLIB=0
+
+[Language]
+ActiveLang=
+ProjectLang=
+RootDir=
+  </IDEOPTIONS>
+</PROJECT>
--- a/projects/msvc/README.txt
+++ b/projects/msvc/README.txt
@@ -1,11 +1,11 @@
 Microsoft Developer Studio Build File, Format Version 6.00 for
-libpng 1.0.8beta3 (July 11, 2000) and zlib
+libpng 1.0.9 (January 31, 2001) and zlib

 Copyright (C) 2000 Simon-Pierre Cadieux
 For conditions of distribution and use, see copyright notice in png.h

-Assumes that libpng sources are in ..
-Assumes that zlib sources have been copied to ..\..\zlib
+Assumes that libpng sources are in ..\..
+Assumes that zlib sources have been copied to ..\..\..\zlib

 To build:

@@ -25,9 +25,9 @@ This project will build the PNG Development Group's "official" versions of
 libpng and zlib libraries:

   libpng1.dll          (default version, currently C code only)
-   libpng1a.dll         (C + Assembler version)
-   libpng1b.dll         (C + Assembler debug version)
-   libpng1d.dll         (C code debug version)
+   libpng1.dll         (C + Assembler version)
+   libpng1.dll         (C + Assembler debug version)
+   libpng1.dll         (C code debug version)
   libpng1[c,e-m].dll   (reserved for official versions) 
   libpng1[n-z].dll     (available for private versions)
   zlib.dll             (default version, currently C code only)
--- a/projects/msvc/libpng.dsp
+++ b/projects/msvc/libpng.dsp
@@ -46,11 +46,11 @@ CFG=libpng - Win32 DLL
 # PROP Target_Dir ""
 CPP=cl.exe
 # ADD BASE CPP /nologo /MD /W3 /O1 /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /D "_USRDLL" /FD /c
-# ADD CPP /nologo /MD /W3 /O1 /I ".." /I "..\..\zlib" /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /D "PNG_BUILD_DLL" /D "ZLIB_DLL" /Yu"png.h" /FD /c
+# ADD CPP /nologo /MD /W3 /O1 /I "..\.." /I "..\..\..\zlib" /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /D "PNG_BUILD_DLL" /D "ZLIB_DLL" /Yu"png.h" /FD /c
 MTL=midl.exe
 RSC=rc.exe
 # ADD BASE RSC /l 0x409 /d "NDEBUG"
-# ADD RSC /l 0x409 /i ".." /d "NDEBUG"
+# ADD RSC /l 0x409 /i "..\.." /d "NDEBUG"
 BSC32=bscmake.exe
 # ADD BASE BSC32 /nologo
 # ADD BSC32 /nologo
@@ -74,11 +74,11 @@ LINK32=link.exe
 # PROP Target_Dir ""
 CPP=cl.exe
 # ADD BASE CPP /nologo /MDd /W3 /Zi /Od /D "_DEBUG" /D "WIN32" /D "_WINDOWS" /D "_USRDLL" /FD /GZ /c
-# ADD CPP /nologo /MDd /W3 /Zi /Od /I ".." /I "..\..\zlib" /D "DEBUG" /D "_DEBUG" /D PNG_DEBUG=1 /D "WIN32" /D "_WINDOWS" /D "PNG_BUILD_DLL" /D "ZLIB_DLL" /Yu"png.h" /FD /GZ /c
+# ADD CPP /nologo /MDd /W3 /Zi /Od /I "..\.." /I "..\..\..\zlib" /D "DEBUG" /D "_DEBUG" /D PNG_DEBUG=1 /D "WIN32" /D "_WINDOWS" /D "PNG_BUILD_DLL" /D "ZLIB_DLL" /Yu"png.h" /FD /GZ /c
 MTL=midl.exe
 RSC=rc.exe
 # ADD BASE RSC /l 0x409 /d "_DEBUG"
-# ADD RSC /l 0x409 /i ".." /d "_DEBUG" /d PNG_DEBUG=1
+# ADD RSC /l 0x409 /i "..\.." /d "_DEBUG" /d PNG_DEBUG=1
 BSC32=bscmake.exe
 # ADD BASE BSC32 /nologo
 # ADD BSC32 /nologo
@@ -101,11 +101,11 @@ LINK32=link.exe
 # PROP Target_Dir ""
 CPP=cl.exe
 # ADD BASE CPP /nologo /MD /W3 /O1 /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /D "_USRDLL" /FD /c
-# ADD CPP /nologo /MD /W3 /O1 /I ".." /I "..\..\zlib" /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /D "PNG_USE_PNGVCRD" /D "PNG_BUILD_DLL" /D "ZLIB_DLL" /Yu"png.h" /FD /c
+# ADD CPP /nologo /MD /W3 /O1 /I "..\.." /I "..\..\..\zlib" /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /D "PNG_USE_PNGVCRD" /D "PNG_BUILD_DLL" /D "ZLIB_DLL" /Yu"png.h" /FD /c
 MTL=midl.exe
 RSC=rc.exe
 # ADD BASE RSC /l 0x409 /d "NDEBUG"
-# ADD RSC /l 0x409 /i ".." /d "NDEBUG" /d "PNG_USE_PNGVCRD"
+# ADD RSC /l 0x409 /i "..\.." /d "NDEBUG" /d "PNG_USE_PNGVCRD"
 BSC32=bscmake.exe
 # ADD BASE BSC32 /nologo
 # ADD BSC32 /nologo
@@ -129,11 +129,11 @@ LINK32=link.exe
 # PROP Target_Dir ""
 CPP=cl.exe
 # ADD BASE CPP /nologo /MDd /W3 /Zi /Od /D "_DEBUG" /D "WIN32" /D "_WINDOWS" /D "_USRDLL" /FD /GZ /c
-# ADD CPP /nologo /MDd /W3 /Zi /Od /I ".." /I "..\..\zlib" /D "DEBUG" /D "_DEBUG" /D PNG_DEBUG=1 /D "WIN32" /D "_WINDOWS" /D "PNG_USE_PNGVCRD" /D "PNG_BUILD_DLL" /D "ZLIB_DLL" /Yu"png.h" /FD /GZ /c
+# ADD CPP /nologo /MDd /W3 /Zi /Od /I "..\.." /I "..\..\..\zlib" /D "DEBUG" /D "_DEBUG" /D PNG_DEBUG=1 /D "WIN32" /D "_WINDOWS" /D "PNG_USE_PNGVCRD" /D "PNG_BUILD_DLL" /D "ZLIB_DLL" /Yu"png.h" /FD /GZ /c
 MTL=midl.exe
 RSC=rc.exe
 # ADD BASE RSC /l 0x409 /d "_DEBUG"
-# ADD RSC /l 0x409 /i ".." /d "_DEBUG" /d PNG_DEBUG=1  /d "PNG_USE_PNGVCRD"
+# ADD RSC /l 0x409 /i "..\.." /d "_DEBUG" /d PNG_DEBUG=1  /d "PNG_USE_PNGVCRD"
 BSC32=bscmake.exe
 # ADD BASE BSC32 /nologo
 # ADD BSC32 /nologo
@@ -156,10 +156,10 @@ LINK32=link.exe
 MTL=midl.exe
 CPP=cl.exe
 # ADD BASE CPP /nologo /W3 /O1 /D "WIN32" /D "NDEBUG" /D "_LIB" /FD /c
-# ADD CPP /nologo /W3 /O1 /I ".." /I "..\..\zlib" /D "WIN32" /D "NDEBUG" /Yu"png.h" /FD /c
+# ADD CPP /nologo /W3 /O1 /I "..\.." /I "..\..\..\zlib" /D "WIN32" /D "NDEBUG" /Yu"png.h" /FD /c
 RSC=rc.exe
 # ADD BASE RSC /l 0x409 /d "NDEBUG"
-# ADD RSC /l 0x409 /i ".." /d "NDEBUG"
+# ADD RSC /l 0x409 /i "..\.." /d "NDEBUG"
 BSC32=bscmake.exe
 # ADD BASE BSC32 /nologo
 # ADD BSC32 /nologo
@@ -182,7 +182,7 @@ LIB32=link.exe -lib
 MTL=midl.exe
 CPP=cl.exe
 # ADD BASE CPP /nologo /W3 /Zi /Od /D "_DEBUG" /D "WIN32" /D "_LIB" /FD /GZ /c
-# ADD CPP /nologo /W3 /Zi /Od /I ".." /I "..\..\zlib" /D "DEBUG" /D "_DEBUG" /D PNG_DEBUG=1 /D "WIN32" /Yu"png.h" /FD /GZ /c
+# ADD CPP /nologo /W3 /Zi /Od /I "..\.." /I "..\..\..\zlib" /D "DEBUG" /D "_DEBUG" /D PNG_DEBUG=1 /D "WIN32" /Yu"png.h" /FD /GZ /c
 RSC=rc.exe
 # ADD BASE RSC /l 0x409 /d "_DEBUG"
 # ADD RSC /l 0x409 /d "_DEBUG"
@@ -208,7 +208,7 @@ LIB32=link.exe -lib
 # PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"
 # Begin Source File

-SOURCE=..\png.c
+SOURCE=..\..\png.c
 # SUBTRACT CPP /YX /Yc /Yu
 # End Source File
 # Begin Source File
@@ -259,48 +259,48 @@ SOURCE=.\png32ms.def
 # End Source File
 # Begin Source File

-SOURCE=..\pngerror.c
+SOURCE=..\..\pngerror.c
 # ADD CPP /Yc"png.h"
 # End Source File
 # Begin Source File

-SOURCE=..\pngget.c
+SOURCE=..\..\pngget.c
 # End Source File
 # Begin Source File

-SOURCE=..\pngmem.c
+SOURCE=..\..\pngmem.c
 # End Source File
 # Begin Source File

-SOURCE=..\pngpread.c
+SOURCE=..\..\pngpread.c
 # End Source File
 # Begin Source File

-SOURCE=..\pngread.c
+SOURCE=..\..\pngread.c
 # End Source File
 # Begin Source File

-SOURCE=..\pngrio.c
+SOURCE=..\..\pngrio.c
 # End Source File
 # Begin Source File

-SOURCE=..\pngrtran.c
+SOURCE=..\..\pngrtran.c
 # End Source File
 # Begin Source File

-SOURCE=..\pngrutil.c
+SOURCE=..\..\pngrutil.c
 # End Source File
 # Begin Source File

-SOURCE=..\pngset.c
+SOURCE=..\..\pngset.c
 # End Source File
 # Begin Source File

-SOURCE=..\pngtrans.c
+SOURCE=..\..\pngtrans.c
 # End Source File
 # Begin Source File

-SOURCE=..\pngvcrd.c
+SOURCE=..\..\pngvcrd.c

 !IF  "$(CFG)" == "libpng - Win32 DLL"

@@ -327,19 +327,19 @@ SOURCE=..\pngvcrd.c
 # End Source File
 # Begin Source File

-SOURCE=..\pngwio.c
+SOURCE=..\..\pngwio.c
 # End Source File
 # Begin Source File

-SOURCE=..\pngwrite.c
+SOURCE=..\..\pngwrite.c
 # End Source File
 # Begin Source File

-SOURCE=..\pngwtran.c
+SOURCE=..\..\pngwtran.c
 # End Source File
 # Begin Source File

-SOURCE=..\pngwutil.c
+SOURCE=..\..\pngwutil.c
 # End Source File
 # End Group
 # Begin Group "Header Files"
@@ -347,11 +347,11 @@ SOURCE=..\pngwutil.c
 # PROP Default_Filter "h;hpp;hxx;hm;inl"
 # Begin Source File

-SOURCE=..\png.h
+SOURCE=..\..\png.h
 # End Source File
 # Begin Source File

-SOURCE=..\pngconf.h
+SOURCE=..\..\pngconf.h
 # End Source File
 # End Group
 # Begin Group "Resource Files"
--- a/projects/msvc/libpng.dsw
+++ b/projects/msvc/libpng.dsw
--- a/projects/msvc/png.rc
+++ b/projects/msvc/png.rc
@@ -18,6 +18,9 @@
 #  else
 #    define DLLFNAME_POSTFIX "A"
 #  endif /* !defined(DLLFNAME_POSTFIX)... */
+#  if !defined(SPECIALBUILD)
+#    define SPECIALBUILD "Use MMX instructions"
+#  endif /* SPECIALBUILD */
 #endif

 #if defined(PNG_DEBUG) && (PNG_DEBUG > 0)
@@ -47,13 +50,27 @@
 #  define VS_SPECIALBUILD 0
 #endif /* SPECIALBUILD */

+#if ((PNG_LIBPNG_BUILD_TYPE & PNG_LIBPNG_BUILD_TYPEMASK) != \
+      PNG_LIBPNG_BUILD_STABLE)
+#  define VS_PRERELEASE VS_FF_PRERELEASE
+#  define VS_PATCHED 0
+#else
+#  define VS_PRERELEASE 0
+#  if (PNG_LIBPNG_BUILD_TYPE & PNG_LIBPNG_BUILD_PATCHED)
+#    define VS_PATCHED VS_FF_PATCHED
+#  else
+#    define VS_PATCHED 0
+#  endif
+#endif
+
 VS_VERSION_INFO VERSIONINFO 
 FILEVERSION PNG_LIBPNG_VER_MAJOR, PNG_LIBPNG_VER_MINOR, PNG_LIBPNG_VER_RELEASE, PNG_LIBPNG_VER_BUILD
 PRODUCTVERSION PNG_LIBPNG_VER_MAJOR, PNG_LIBPNG_VER_MINOR, PNG_LIBPNG_VER_RELEASE, PNG_LIBPNG_VER_BUILD
 FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
-FILEFLAGS VS_DEBUG | VS_PRIVATEBUILD | VS_SPECIALBUILD
+FILEFLAGS VS_DEBUG | VS_PRIVATEBUILD | VS_SPECIALBUILD | VS_PRERELEASE | VS_PATCHED
 FILEOS VOS__WINDOWS32
 FILETYPE VFT_DLL
+FILESUBTYPE VFT2_UNKNOWN
 BEGIN
  BLOCK "StringFileInfo"
  BEGIN BLOCK "040904E4" /* Language type = U.S English(0x0409) and Character Set = Windows, Multilingual(0x04E4) */
--- a/projects/msvc/png32ms.def
+++ b/projects/msvc/png32ms.def
@@ -6,7 +6,7 @@ LIBRARY
 DESCRIPTION "PNG image compression library for Windows"

 EXPORTS
-;Version 1.0.8beta3
+;Version 1.0.9
  png_build_grayscale_palette  @1
  png_check_sig        @2
  png_chunk_error      @3
@@ -176,3 +176,11 @@ EXPORTS
  png_write_init_2    @167
  png_access_version_number  @168
 ;  png_sig_bytes    @169
+;  png_libpng_ver    @170
+  png_init_io    @171
+  png_convert_to_rfc1123     @172
+  png_set_invalid  @173
+;To be added at version 1.2.0
+; png_permit_mng_features  @174
+;To be added at version 1.2.0
+; png_mmx_support  @175
--- a/projects/msvc/zlib.def
+++ b/projects/msvc/zlib.def
--- a/projects/msvc/zlib.dsp
+++ b/projects/msvc/zlib.dsp
@@ -101,11 +101,11 @@ LINK32=link.exe
 # PROP Target_Dir ""
 CPP=cl.exe
 # ADD BASE CPP /nologo /MD /W3 /O1 /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /D "_USRDLL" /FD /c
-# ADD CPP /nologo /MD /W3 /O1 /I "..\..\zlib" /D "NDEBUG" /D "WIN32" /D "_WIN32" /D "_WINDOWS" /D "ZLIB_DLL" /D "DYNAMIC_CRC_TABLE" /D "ASMV" /FAcs /FD /c
+# ADD CPP /nologo /MD /W3 /O1 /I "..\..\..\zlib" /D "NDEBUG" /D "WIN32" /D "_WIN32" /D "_WINDOWS" /D "ZLIB_DLL" /D "DYNAMIC_CRC_TABLE" /D "ASMV" /FAcs /FD /c
 MTL=midl.exe
 RSC=rc.exe
 # ADD BASE RSC /l 0x409 /d "NDEBUG"
-# ADD RSC /l 0x409 /i ".." /d "NDEBUG"
+# ADD RSC /l 0x409 /i "..\.." /d "NDEBUG"
 BSC32=bscmake.exe
 # ADD BASE BSC32 /nologo
 # ADD BSC32 /nologo
@@ -129,11 +129,11 @@ LINK32=link.exe
 # PROP Target_Dir ""
 CPP=cl.exe
 # ADD BASE CPP /nologo /MDd /W3 /Zi /Od /D "_DEBUG" /D "WIN32" /D "_WINDOWS" /D "_USRDLL" /FD /GZ /c
-# ADD CPP /nologo /MDd /W3 /Zi /Od /I "..\..\zlib" /D "_DEBUG" /D "WIN32" /D "_WIN32" /D "_WINDOWS" /D "ZLIB_DLL" /D "DYNAMIC_CRC_TABLE" /D "ASMV" /FAcs /FD /GZ /c
+# ADD CPP /nologo /MDd /W3 /Zi /Od /I "..\..\..\zlib" /D "_DEBUG" /D "WIN32" /D "_WIN32" /D "_WINDOWS" /D "ZLIB_DLL" /D "DYNAMIC_CRC_TABLE" /D "ASMV" /FAcs /FD /GZ /c
 MTL=midl.exe
 RSC=rc.exe
 # ADD BASE RSC /l 0x409 /d "_DEBUG"
-# ADD RSC /l 0x409 /i ".." /d "_DEBUG"
+# ADD RSC /l 0x409 /i "..\.." /d "_DEBUG"
 BSC32=bscmake.exe
 # ADD BASE BSC32 /nologo
 # ADD BSC32 /nologo
@@ -208,23 +208,23 @@ LIB32=link.exe -lib
 # PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"
 # Begin Source File

-SOURCE=..\..\zlib\adler32.c
+SOURCE=..\..\..\zlib\adler32.c
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\compress.c
+SOURCE=..\..\..\zlib\compress.c
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\crc32.c
+SOURCE=..\..\..\zlib\crc32.c
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\deflate.c
+SOURCE=..\..\..\zlib\deflate.c
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\contrib\asm386\gvmat32c.c
+SOURCE=..\..\..\zlib\contrib\asm386\gvmat32c.c

 !IF  "$(CFG)" == "zlib - Win32 DLL"

@@ -251,46 +251,46 @@ SOURCE=..\..\zlib\contrib\asm386\gvmat32c.c
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\gzio.c
+SOURCE=..\..\..\zlib\gzio.c
 # ADD CPP /Yc"zutil.h"
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\infblock.c
+SOURCE=..\..\..\zlib\infblock.c
 # ADD CPP /Yu"zutil.h"
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\infcodes.c
+SOURCE=..\..\..\zlib\infcodes.c
 # ADD CPP /Yu"zutil.h"
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\inffast.c
+SOURCE=..\..\..\zlib\inffast.c
 # ADD CPP /Yu"zutil.h"
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\inflate.c
+SOURCE=..\..\..\zlib\inflate.c
 # ADD CPP /Yu"zutil.h"
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\inftrees.c
+SOURCE=..\..\..\zlib\inftrees.c
 # ADD CPP /Yu"zutil.h"
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\infutil.c
+SOURCE=..\..\..\zlib\infutil.c
 # ADD CPP /Yu"zutil.h"
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\trees.c
+SOURCE=..\..\..\zlib\trees.c
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\uncompr.c
+SOURCE=..\..\..\zlib\uncompr.c
 # End Source File
 # Begin Source File

@@ -317,7 +317,7 @@ SOURCE=.\zlib.def
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\msdos\zlib.rc
+SOURCE=..\..\..\zlib\msdos\zlib.rc

 !IF  "$(CFG)" == "zlib - Win32 DLL"

@@ -340,7 +340,7 @@ SOURCE=..\..\zlib\msdos\zlib.rc
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\zutil.c
+SOURCE=..\..\..\zlib\zutil.c
 # ADD CPP /Yu"zutil.h"
 # End Source File
 # End Group
@@ -349,47 +349,47 @@ SOURCE=..\..\zlib\zutil.c
 # PROP Default_Filter "h;hpp;hxx;hm;inl"
 # Begin Source File

-SOURCE=..\..\zlib\deflate.h
+SOURCE=..\..\..\zlib\deflate.h
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\infblock.h
+SOURCE=..\..\..\zlib\infblock.h
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\infcodes.h
+SOURCE=..\..\..\zlib\infcodes.h
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\inffast.h
+SOURCE=..\..\..\zlib\inffast.h
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\inffixed.h
+SOURCE=..\..\..\zlib\inffixed.h
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\inftrees.h
+SOURCE=..\..\..\zlib\inftrees.h
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\infutil.h
+SOURCE=..\..\..\zlib\infutil.h
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\trees.h
+SOURCE=..\..\..\zlib\trees.h
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\zconf.h
+SOURCE=..\..\..\zlib\zconf.h
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\zlib.h
+SOURCE=..\..\..\zlib\zlib.h
 # End Source File
 # Begin Source File

-SOURCE=..\..\zlib\zutil.h
+SOURCE=..\..\..\zlib\zutil.h
 # End Source File
 # End Group
 # Begin Group "Resource Files"
--- a/projects/wince/READMEE.WCE
+++ b/projects/wince/READMEE.WCE
@@ -8,9 +8,9 @@ libpng for WindowsCE Rel.1.0

 Introduction
 ============
-This is libpng 1.0.7 ported to WindowsCE 2.0 and 2.11.
-libpng 1.0.7 is a PNG reference library.
-See README, a document of original libpng 1.0.7.
+This is libpng 1.0.9 ported to WindowsCE 2.0 and 2.11.
+libpng 1.0.9 is a PNG reference library.
+See README, a document of original libpng 1.0.9.

 zlib for WindowsCE
 ==================
@@ -23,7 +23,7 @@ This software is provided 'as-is', without any express or implied
 warranty.  In no event will the authors be held liable for any damages
 arising from the use of this software.

-See README and LICENSE, documents of original libpng 1.0.7, for conditions
+See README and LICENSE, documents of original libpng 1.0.9, for conditions
 of use and distribution.

 Files
@@ -33,8 +33,8 @@ Files
 READMEJ.WCE - this file(in Japanese)
 png32ce.def - module definition file to make DLLs

-Sample programs(../pngtest.c and ../contrib/*) can build on WindowsCE 2.11.
-WindowsCE 2.0 and below do not support 'console' functions.
+Sample programs(../../pngtest.c and ../../contrib/*) can build on WindowsCE
+2.11.  WindowsCE 2.0 and below do not support 'console' functions.

 Author
 ======
--- a/projects/wince/READMEJ.WCE
+++ b/projects/wince/READMEJ.WCE
@@ -24,7 +24,7 @@ libpng
 になったいかなる被害についても、作者、配布者、その他利用者以外の人物、
 団体に責任をとる義務はないものとします。

-その他、このソフトウェアの利用条件については、原版である libpng 1.0.7に
+その他、このソフトウェアの利用条件については、原版である libpng 1.0.9に
 準拠するものとします。詳しくは、付属の README,LICENSE をお読みください。

 収録内容
--- a/projects/wince/READMEZE.WCE
+++ b/projects/wince/READMEZE.WCE
--- a/projects/wince/READMEZJ.WCE
+++ b/projects/wince/READMEZJ.WCE
--- a/projects/wince/lpngce.dsp
+++ b/projects/wince/lpngce.dsp
--- a/projects/wince/lpngce.dsw
+++ b/projects/wince/lpngce.dsw
--- a/projects/wince/png32ce.def
+++ b/projects/wince/png32ce.def
@@ -5,7 +5,7 @@
 LIBRARY lpngce

 EXPORTS
-;Version 1.0.7
+;Version 1.0.9
  png_build_grayscale_palette  @1
  png_check_sig        @2
  png_chunk_error      @3
@@ -178,3 +178,8 @@ EXPORTS
  png_libpng_ver    @170
  png_init_io    @171
  png_convert_to_rfc1123     @172
+  png_set_invalid  @173
+;To be added at version 1.2.0
+; png_permit_mng_features  @174
+;To be added at version 1.2.0
+; png_mmx_support  @175
--- a/projects/wince/pngtest.dsp
+++ b/projects/wince/pngtest.dsp
@@ -62,7 +62,7 @@ CFG=pngtest - Win32 (WCE MIPS) Debug
 # PROP Target_Dir ""
 CPP=clmips.exe
 # ADD BASE CPP /nologo /M$(CECrt) /W3 /O2 /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D "NDEBUG" /D "MIPS" /D "_MIPS_" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /YX /QMRWCE /c
-# ADD CPP /nologo /M$(CECrt) /W3 /O2 /I ".." /I "..\..\zlib" /D "NDEBUG" /D "MIPS" /D "_MIPS_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /QMRWCE /c
+# ADD CPP /nologo /M$(CECrt) /W3 /O2 /I "..\.." /I "..\..\..\zlib" /D "NDEBUG" /D "MIPS" /D "_MIPS_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /QMRWCE /c
 # SUBTRACT CPP /YX
 RSC=rc.exe
 # ADD BASE RSC /l 0x411 /r /d "MIPS" /d "_MIPS_" /d UNDER_CE=$(CEVersion) /d _WIN32_WCE=$(CEVersion) /d "$(CEConfigName)" /d "UNICODE" /d "NDEBUG"
@@ -93,7 +93,7 @@ LINK32=link.exe
 # PROP Target_Dir ""
 CPP=clmips.exe
 # ADD BASE CPP /nologo /M$(CECrtDebug) /W3 /Zi /Od /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D "DEBUG" /D "MIPS" /D "_MIPS_" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /YX /QMRWCE /c
-# ADD CPP /nologo /M$(CECrtDebug) /W3 /Zi /Od /I ".." /I "..\..\zlib" /D "DEBUG" /D "MIPS" /D "_MIPS_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /QMRWCE /c
+# ADD CPP /nologo /M$(CECrtDebug) /W3 /Zi /Od /I "..\.." /I "..\..\..\zlib" /D "DEBUG" /D "MIPS" /D "_MIPS_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /QMRWCE /c
 # SUBTRACT CPP /YX
 RSC=rc.exe
 # ADD BASE RSC /l 0x411 /r /d "MIPS" /d "_MIPS_" /d UNDER_CE=$(CEVersion) /d _WIN32_WCE=$(CEVersion) /d "$(CEConfigName)" /d "UNICODE" /d "DEBUG"
@@ -124,7 +124,7 @@ LINK32=link.exe
 # PROP Target_Dir ""
 CPP=shcl.exe
 # ADD BASE CPP /nologo /Qsh4 /MC /W3 /O2 /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D "NDEBUG" /D "SHx" /D "SH4" /D "_SH4_" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /YX /c
-# ADD CPP /nologo /Qsh4 /MC /W3 /O2 /I ".." /I "..\..\zlib" /D "NDEBUG" /D "SHx" /D "SH4" /D "_SH4_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
+# ADD CPP /nologo /Qsh4 /MC /W3 /O2 /I "..\.." /I "..\..\..\zlib" /D "NDEBUG" /D "SHx" /D "SH4" /D "_SH4_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
 # SUBTRACT CPP /YX
 RSC=rc.exe
 # ADD BASE RSC /l 0x411 /r /d "SHx" /d "SH4" /d "_SH4_" /d UNDER_CE=$(CEVersion) /d _WIN32_WCE=$(CEVersion) /d "$(CEConfigName)" /d "UNICODE" /d "NDEBUG"
@@ -155,7 +155,7 @@ LINK32=link.exe
 # PROP Target_Dir ""
 CPP=shcl.exe
 # ADD BASE CPP /nologo /Qsh4 /MC /W3 /Zi /Od /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D "DEBUG" /D "SHx" /D "SH4" /D "_SH4_" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /YX /c
-# ADD CPP /nologo /Qsh4 /MC /W3 /Zi /Od /I ".." /I "..\..\zlib" /D "DEBUG" /D "SHx" /D "SH4" /D "_SH4_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
+# ADD CPP /nologo /Qsh4 /MC /W3 /Zi /Od /I "..\.." /I "..\..\..\zlib" /D "DEBUG" /D "SHx" /D "SH4" /D "_SH4_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
 # SUBTRACT CPP /YX
 RSC=rc.exe
 # ADD BASE RSC /l 0x411 /r /d "SHx" /d "SH4" /d "_SH4_" /d UNDER_CE=$(CEVersion) /d _WIN32_WCE=$(CEVersion) /d "$(CEConfigName)" /d "UNICODE" /d "DEBUG"
@@ -186,7 +186,7 @@ LINK32=link.exe
 # PROP Target_Dir ""
 CPP=shcl.exe
 # ADD BASE CPP /nologo /M$(CECrt) /W3 /O2 /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D "NDEBUG" /D "SHx" /D "SH3" /D "_SH3_" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /YX /c
-# ADD CPP /nologo /M$(CECrt) /W3 /O2 /I ".." /I "..\..\zlib" /D "NDEBUG" /D "SHx" /D "SH3" /D "_SH3_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
+# ADD CPP /nologo /M$(CECrt) /W3 /O2 /I "..\.." /I "..\..\..\zlib" /D "NDEBUG" /D "SHx" /D "SH3" /D "_SH3_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
 # SUBTRACT CPP /YX
 RSC=rc.exe
 # ADD BASE RSC /l 0x411 /r /d "SHx" /d "SH3" /d "_SH3_" /d UNDER_CE=$(CEVersion) /d _WIN32_WCE=$(CEVersion) /d "$(CEConfigName)" /d "UNICODE" /d "NDEBUG"
@@ -217,7 +217,7 @@ LINK32=link.exe
 # PROP Target_Dir ""
 CPP=shcl.exe
 # ADD BASE CPP /nologo /M$(CECrtDebug) /W3 /Zi /Od /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D "DEBUG" /D "SHx" /D "SH3" /D "_SH3_" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /YX /c
-# ADD CPP /nologo /M$(CECrtDebug) /W3 /Zi /Od /I ".." /I "..\..\zlib" /D "DEBUG" /D "SHx" /D "SH3" /D "_SH3_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
+# ADD CPP /nologo /M$(CECrtDebug) /W3 /Zi /Od /I "..\.." /I "..\..\..\zlib" /D "DEBUG" /D "SHx" /D "SH3" /D "_SH3_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
 # SUBTRACT CPP /YX
 RSC=rc.exe
 # ADD BASE RSC /l 0x411 /r /d "SHx" /d "SH3" /d "_SH3_" /d UNDER_CE=$(CEVersion) /d _WIN32_WCE=$(CEVersion) /d "$(CEConfigName)" /d "UNICODE" /d "DEBUG"
@@ -248,7 +248,7 @@ LINK32=link.exe
 # PROP Target_Dir ""
 CPP=clarm.exe
 # ADD BASE CPP /nologo /MC /W3 /O2 /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D "NDEBUG" /D "ARM" /D "_ARM_" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /YX /c
-# ADD CPP /nologo /MC /W3 /O2 /I ".." /I "..\..\zlib" /D "NDEBUG" /D "ARM" /D "_ARM_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
+# ADD CPP /nologo /MC /W3 /O2 /I "..\.." /I "..\..\..\zlib" /D "NDEBUG" /D "ARM" /D "_ARM_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
 # SUBTRACT CPP /YX
 RSC=rc.exe
 # ADD BASE RSC /l 0x411 /r /d "ARM" /d "_ARM_" /d UNDER_CE=$(CEVersion) /d _WIN32_WCE=$(CEVersion) /d "$(CEConfigName)" /d "UNICODE" /d "NDEBUG"
@@ -279,7 +279,7 @@ LINK32=link.exe
 # PROP Target_Dir ""
 CPP=clarm.exe
 # ADD BASE CPP /nologo /MC /W3 /Zi /Od /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D "DEBUG" /D "ARM" /D "_ARM_" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /YX /c
-# ADD CPP /nologo /MC /W3 /Zi /Od /I ".." /I "..\..\zlib" /D "DEBUG" /D "ARM" /D "_ARM_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
+# ADD CPP /nologo /MC /W3 /Zi /Od /I "..\.." /I "..\..\..\zlib" /D "DEBUG" /D "ARM" /D "_ARM_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
 # SUBTRACT CPP /YX
 RSC=rc.exe
 # ADD BASE RSC /l 0x411 /r /d "ARM" /d "_ARM_" /d UNDER_CE=$(CEVersion) /d _WIN32_WCE=$(CEVersion) /d "$(CEConfigName)" /d "UNICODE" /d "DEBUG"
@@ -310,7 +310,7 @@ LINK32=link.exe
 # PROP Target_Dir ""
 CPP=clmips.exe
 # ADD BASE CPP /nologo /QMFWCE /MC /W3 /O2 /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D "NDEBUG" /D "MIPS" /D "_MIPS_" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /YX /c
-# ADD CPP /nologo /QMFWCE /MC /W3 /O2 /I ".." /I "..\..\zlib" /D "NDEBUG" /D "MIPS" /D "_MIPS_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
+# ADD CPP /nologo /QMFWCE /MC /W3 /O2 /I "..\.." /I "..\..\..\zlib" /D "NDEBUG" /D "MIPS" /D "_MIPS_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
 # SUBTRACT CPP /YX
 RSC=rc.exe
 # ADD BASE RSC /l 0x411 /r /d "MIPS" /d "_MIPS_" /d UNDER_CE=$(CEVersion) /d _WIN32_WCE=$(CEVersion) /d "$(CEConfigName)" /d "UNICODE" /d "NDEBUG"
@@ -341,7 +341,7 @@ LINK32=link.exe
 # PROP Target_Dir ""
 CPP=clmips.exe
 # ADD BASE CPP /nologo /QMFWCE /MC /W3 /Zi /Od /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D "DEBUG" /D "MIPS" /D "_MIPS_" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /YX /c
-# ADD CPP /nologo /QMFWCE /MC /W3 /Zi /Od /I ".." /I "..\..\zlib" /D "DEBUG" /D "MIPS" /D "_MIPS_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
+# ADD CPP /nologo /QMFWCE /MC /W3 /Zi /Od /I "..\.." /I "..\..\..\zlib" /D "DEBUG" /D "MIPS" /D "_MIPS_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
 # SUBTRACT CPP /YX
 RSC=rc.exe
 # ADD BASE RSC /l 0x411 /r /d "MIPS" /d "_MIPS_" /d UNDER_CE=$(CEVersion) /d _WIN32_WCE=$(CEVersion) /d "$(CEConfigName)" /d "UNICODE" /d "DEBUG"
@@ -372,7 +372,7 @@ LINK32=link.exe
 # PROP Target_Dir ""
 CPP=cl.exe
 # ADD BASE CPP /nologo /ML /W3 /O2 /D "x86" /D "_i386_" /D "_x86_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "NDEBUG" /D "i_386_" /D "_MBCS" /Gs8192 /GF /c
-# ADD CPP /nologo /ML /W3 /O2 /I ".." /I "..\..\zlib" /D "x86" /D "_i386_" /D "_x86_" /D "NDEBUG" /D "i_386_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /Gs8192 /GF /c
+# ADD CPP /nologo /ML /W3 /O2 /I "..\.." /I "..\..\..\zlib" /D "x86" /D "_i386_" /D "_x86_" /D "NDEBUG" /D "i_386_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /Gs8192 /GF /c
 RSC=rc.exe
 # ADD BASE RSC /l 0x411 /r /d "x86" /d "_i386_" /d "_x86_" /d _WIN32_WCE=$(CEVersion) /d "$(CEConfigName)" /d UNDER_CE=$(CEVersion) /d "UNICODE" /d "NDEBUG"
 # ADD RSC /l 0x411 /r /d "x86" /d "_i386_" /d "_x86_" /d _WIN32_WCE=$(CEVersion) /d "$(CEConfigName)" /d UNDER_CE=$(CEVersion) /d "UNICODE" /d "NDEBUG"
@@ -402,7 +402,7 @@ LINK32=link.exe
 # PROP Target_Dir ""
 CPP=cl.exe
 # ADD BASE CPP /nologo /MLd /W3 /Zi /Od /D "x86" /D "_i386_" /D "_x86_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "DEBUG" /D "i_386_" /D "_MBCS" /Gs8192 /GF /c
-# ADD CPP /nologo /MLd /W3 /Zi /Od /I ".." /I "..\..\zlib" /D "x86" /D "_i386_" /D "_x86_" /D "DEBUG" /D "i_386_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /Gs8192 /GF /c
+# ADD CPP /nologo /MLd /W3 /Zi /Od /I "..\.." /I "..\..\..\zlib" /D "x86" /D "_i386_" /D "_x86_" /D "DEBUG" /D "i_386_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /Gs8192 /GF /c
 RSC=rc.exe
 # ADD BASE RSC /l 0x411 /r /d "x86" /d "_i386_" /d "_x86_" /d _WIN32_WCE=$(CEVersion) /d "$(CEConfigName)" /d UNDER_CE=$(CEVersion) /d "UNICODE" /d "DEBUG"
 # ADD RSC /l 0x411 /r /d "x86" /d "_i386_" /d "_x86_" /d _WIN32_WCE=$(CEVersion) /d "$(CEConfigName)" /d UNDER_CE=$(CEVersion) /d "UNICODE" /d "DEBUG"
@@ -432,7 +432,7 @@ LINK32=link.exe
 # PROP Target_Dir ""
 CPP=cl.exe
 # ADD BASE CPP /nologo /ML /W3 /O2 /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_UNICODE" /D "WIN32" /D "STRICT" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D "_WIN32_WCE_EMULATION" /D "INTERNATIONAL" /D "USA" /D "INTLMSG_CODEPAGE" /D "NDEBUG" /D "x86" /D "i486" /D "_x86_" /D "_MBCS" /YX /c
-# ADD CPP /nologo /ML /W3 /O2 /I ".." /I "..\..\zlib" /D "_UNICODE" /D "WIN32" /D "STRICT" /D "_WIN32_WCE_EMULATION" /D "INTERNATIONAL" /D "USA" /D "INTLMSG_CODEPAGE" /D "NDEBUG" /D "x86" /D "i486" /D "_x86_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
+# ADD CPP /nologo /ML /W3 /O2 /I "..\.." /I "..\..\..\zlib" /D "_UNICODE" /D "WIN32" /D "STRICT" /D "_WIN32_WCE_EMULATION" /D "INTERNATIONAL" /D "USA" /D "INTLMSG_CODEPAGE" /D "NDEBUG" /D "x86" /D "i486" /D "_x86_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
 # SUBTRACT CPP /YX
 RSC=rc.exe
 # ADD BASE RSC /l 0x411 /d UNDER_CE=$(CEVersion) /d "UNICODE" /d "_UNICODE" /d "WIN32" /d "STRICT" /d _WIN32_WCE=$(CEVersion) /d "$(CEConfigName)" /d "_WIN32_WCE_EMULATION" /d "INTERNATIONAL" /d "USA" /d "INTLMSG_CODEPAGE" /d "NDEBUG"
@@ -461,7 +461,7 @@ LINK32=link.exe
 # PROP Target_Dir ""
 CPP=cl.exe
 # ADD BASE CPP /nologo /MLd /W3 /Gm /Zi /Od /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_UNICODE" /D "WIN32" /D "STRICT" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D "_WIN32_WCE_EMULATION" /D "INTERNATIONAL" /D "USA" /D "INTLMSG_CODEPAGE" /D "_DEBUG" /D "x86" /D "i486" /D "_x86_" /D "_MBCS" /YX /c
-# ADD CPP /nologo /MLd /W3 /Gm /Zi /Od /I ".." /I "..\..\zlib" /D "_UNICODE" /D "WIN32" /D "STRICT" /D "_WIN32_WCE_EMULATION" /D "INTERNATIONAL" /D "USA" /D "INTLMSG_CODEPAGE" /D "_DEBUG" /D "x86" /D "i486" /D "_x86_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
+# ADD CPP /nologo /MLd /W3 /Gm /Zi /Od /I "..\.." /I "..\..\..\zlib" /D "_UNICODE" /D "WIN32" /D "STRICT" /D "_WIN32_WCE_EMULATION" /D "INTERNATIONAL" /D "USA" /D "INTLMSG_CODEPAGE" /D "_DEBUG" /D "x86" /D "i486" /D "_x86_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
 # SUBTRACT CPP /YX
 RSC=rc.exe
 # ADD BASE RSC /l 0x411 /d UNDER_CE=$(CEVersion) /d "UNICODE" /d "_UNICODE" /d "WIN32" /d "STRICT" /d _WIN32_WCE=$(CEVersion) /d "$(CEConfigName)" /d "_WIN32_WCE_EMULATION" /d "INTERNATIONAL" /d "USA" /d "INTLMSG_CODEPAGE" /d "_DEBUG" /d "x86" /d "i486" /d "_x86_"
@@ -490,7 +490,7 @@ LINK32=link.exe
 # PROP Target_Dir ""
 CPP=clppc.exe
 # ADD BASE CPP /nologo /M$(CECrt) /W3 /O2 /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D "NDEBUG" /D "PPC" /D "_PPC_" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /YX /c
-# ADD CPP /nologo /M$(CECrt) /W3 /O2 /I ".." /I "..\..\zlib" /D "NDEBUG" /D "PPC" /D "_PPC_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
+# ADD CPP /nologo /M$(CECrt) /W3 /O2 /I "..\.." /I "..\..\..\zlib" /D "NDEBUG" /D "PPC" /D "_PPC_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
 # SUBTRACT CPP /YX
 RSC=rc.exe
 # ADD BASE RSC /l 0x411 /r /d "ppc" /d "_ppc_" /d _WIN32_WCE=$(CEVersion) /d "$(CEConfigName)" /d UNDER_CE=$(CEVersion) /d "UNICODE" /d "NDEBUG"
@@ -521,7 +521,7 @@ LINK32=link.exe
 # PROP Target_Dir ""
 CPP=clppc.exe
 # ADD BASE CPP /nologo /M$(CECrtDebug) /W3 /Zi /Od /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D "DEBUG" /D "PPC" /D "_PPC_" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /YX /c
-# ADD CPP /nologo /M$(CECrtDebug) /W3 /Zi /Od /I ".." /I "..\..\zlib" /D "DEBUG" /D "PPC" /D "_PPC_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
+# ADD CPP /nologo /M$(CECrtDebug) /W3 /Zi /Od /I "..\.." /I "..\..\..\zlib" /D "DEBUG" /D "PPC" /D "_PPC_" /D _WIN32_WCE=$(CEVersion) /D "$(CEConfigName)" /D UNDER_CE=$(CEVersion) /D "UNICODE" /D "_MBCS" /D "PNG_USE_DLL" /c
 # SUBTRACT CPP /YX
 RSC=rc.exe
 # ADD BASE RSC /l 0x411 /r /d "ppc" /d "_ppc_" /d _WIN32_WCE=$(CEVersion) /d "$(CEConfigName)" /d UNDER_CE=$(CEVersion) /d "UNICODE" /d "DEBUG"
@@ -568,209 +568,193 @@ SOURCE=..\pngtest.c
 !IF  "$(CFG)" == "pngtest - Win32 (WCE MIPS) Release"

 DEP_CPP_PNGTE=\
-	"..\..\zlib\zconf.h"\
-	"..\..\zlib\zlib.h"\
-	"..\png.h"\
-	"..\pngasmrd.h"\
-	"..\pngconf.h"\
+	"..\..\..\zlib\zconf.h"\
+	"..\..\..\zlib\zlib.h"\
+	"..\..\png.h"\
+	"..\..\pngconf.h"\
 	
 NODEP_CPP_PNGTE=\
-	"..\alloc.h"\
+	"..\..\alloc.h"\
 	

 !ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE MIPS) Debug"

 DEP_CPP_PNGTE=\
-	"..\..\zlib\zconf.h"\
-	"..\..\zlib\zlib.h"\
-	"..\png.h"\
-	"..\pngasmrd.h"\
-	"..\pngconf.h"\
+	"..\..\..\zlib\zconf.h"\
+	"..\..\..\zlib\zlib.h"\
+	"..\..\png.h"\
+	"..\..\pngconf.h"\
 	
 NODEP_CPP_PNGTE=\
-	"..\alloc.h"\
+	"..\..\alloc.h"\
 	

 !ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE SH4) Release"

 DEP_CPP_PNGTE=\
-	"..\..\zlib\zconf.h"\
-	"..\..\zlib\zlib.h"\
-	"..\png.h"\
-	"..\pngasmrd.h"\
-	"..\pngconf.h"\
+	"..\..\..\zlib\zconf.h"\
+	"..\..\..\zlib\zlib.h"\
+	"..\..\png.h"\
+	"..\..\pngconf.h"\
 	
 NODEP_CPP_PNGTE=\
-	"..\alloc.h"\
+	"..\..\alloc.h"\
 	

 !ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE SH4) Debug"

 DEP_CPP_PNGTE=\
-	"..\..\zlib\zconf.h"\
-	"..\..\zlib\zlib.h"\
-	"..\png.h"\
-	"..\pngasmrd.h"\
-	"..\pngconf.h"\
+	"..\..\..\zlib\zconf.h"\
+	"..\..\..\zlib\zlib.h"\
+	"..\..\png.h"\
+	"..\..\pngconf.h"\
 	
 NODEP_CPP_PNGTE=\
-	"..\alloc.h"\
+	"..\..\alloc.h"\
 	

 !ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE SH3) Release"

 DEP_CPP_PNGTE=\
-	"..\..\zlib\zconf.h"\
-	"..\..\zlib\zlib.h"\
-	"..\png.h"\
-	"..\pngasmrd.h"\
-	"..\pngconf.h"\
+	"..\..\..\zlib\zconf.h"\
+	"..\..\..\zlib\zlib.h"\
+	"..\..\png.h"\
+	"..\..\pngconf.h"\
 	
 NODEP_CPP_PNGTE=\
-	"..\alloc.h"\
+	"..\..\alloc.h"\
 	

 !ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE SH3) Debug"

 DEP_CPP_PNGTE=\
-	"..\..\zlib\zconf.h"\
-	"..\..\zlib\zlib.h"\
-	"..\png.h"\
-	"..\pngasmrd.h"\
-	"..\pngconf.h"\
+	"..\..\..\zlib\zconf.h"\
+	"..\..\..\zlib\zlib.h"\
+	"..\..\png.h"\
+	"..\..\pngconf.h"\
 	
 NODEP_CPP_PNGTE=\
-	"..\alloc.h"\
+	"..\..\alloc.h"\
 	

 !ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE ARM) Release"

 DEP_CPP_PNGTE=\
-	"..\..\zlib\zconf.h"\
-	"..\..\zlib\zlib.h"\
-	"..\png.h"\
-	"..\pngasmrd.h"\
-	"..\pngconf.h"\
+	"..\..\..\zlib\zconf.h"\
+	"..\..\..\zlib\zlib.h"\
+	"..\..\png.h"\
+	"..\..\pngconf.h"\
 	
 NODEP_CPP_PNGTE=\
-	"..\alloc.h"\
+	"..\..\alloc.h"\
 	

 !ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE ARM) Debug"

 DEP_CPP_PNGTE=\
-	"..\..\zlib\zconf.h"\
-	"..\..\zlib\zlib.h"\
-	"..\png.h"\
-	"..\pngasmrd.h"\
-	"..\pngconf.h"\
+	"..\..\..\zlib\zconf.h"\
+	"..\..\..\zlib\zlib.h"\
+	"..\..\png.h"\
+	"..\..\pngconf.h"\
 	
 NODEP_CPP_PNGTE=\
-	"..\alloc.h"\
+	"..\..\alloc.h"\
 	

 !ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE MIPSFP) Release"

 DEP_CPP_PNGTE=\
-	"..\..\zlib\zconf.h"\
-	"..\..\zlib\zlib.h"\
-	"..\png.h"\
-	"..\pngasmrd.h"\
-	"..\pngconf.h"\
+	"..\..\..\zlib\zconf.h"\
+	"..\..\..\zlib\zlib.h"\
+	"..\..\png.h"\
+	"..\..\pngconf.h"\
 	
 NODEP_CPP_PNGTE=\
-	"..\alloc.h"\
+	"..\..\alloc.h"\
 	

 !ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE MIPSFP) Debug"

 DEP_CPP_PNGTE=\
-	"..\..\zlib\zconf.h"\
-	"..\..\zlib\zlib.h"\
-	"..\png.h"\
-	"..\pngasmrd.h"\
-	"..\pngconf.h"\
+	"..\..\..\zlib\zconf.h"\
+	"..\..\..\zlib\zlib.h"\
+	"..\..\png.h"\
+	"..\..\pngconf.h"\
 	
 NODEP_CPP_PNGTE=\
-	"..\alloc.h"\
+	"..\..\alloc.h"\
 	

 !ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE x86) Release"

 DEP_CPP_PNGTE=\
-	"..\..\zlib\zconf.h"\
-	"..\..\zlib\zlib.h"\
-	"..\png.h"\
-	"..\pngasmrd.h"\
-	"..\pngconf.h"\
+	"..\..\..\zlib\zconf.h"\
+	"..\..\..\zlib\zlib.h"\
+	"..\..\png.h"\
+	"..\..\pngconf.h"\
 	
 NODEP_CPP_PNGTE=\
-	"..\alloc.h"\
+	"..\..\alloc.h"\
 	

 !ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE x86) Debug"

 DEP_CPP_PNGTE=\
-	"..\..\zlib\zconf.h"\
-	"..\..\zlib\zlib.h"\
-	"..\png.h"\
-	"..\pngasmrd.h"\
-	"..\pngconf.h"\
+	"..\..\..\zlib\zconf.h"\
+	"..\..\..\zlib\zlib.h"\
+	"..\..\png.h"\
+	"..\..\pngconf.h"\
 	
 NODEP_CPP_PNGTE=\
-	"..\alloc.h"\
+	"..\..\alloc.h"\
 	

 !ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE x86em) Release"

 DEP_CPP_PNGTE=\
-	"..\..\zlib\zconf.h"\
-	"..\..\zlib\zlib.h"\
-	"..\png.h"\
-	"..\pngasmrd.h"\
-	"..\pngconf.h"\
+	"..\..\..\zlib\zconf.h"\
+	"..\..\..\zlib\zlib.h"\
+	"..\..\png.h"\
+	"..\..\pngconf.h"\
 	
 NODEP_CPP_PNGTE=\
-	"..\alloc.h"\
+	"..\..\alloc.h"\
 	

 !ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE x86em) Debug"

 DEP_CPP_PNGTE=\
-	"..\..\zlib\zconf.h"\
-	"..\..\zlib\zlib.h"\
-	"..\png.h"\
-	"..\pngasmrd.h"\
-	"..\pngconf.h"\
+	"..\..\..\zlib\zconf.h"\
+	"..\..\..\zlib\zlib.h"\
+	"..\..\png.h"\
+	"..\..\pngconf.h"\
 	
 NODEP_CPP_PNGTE=\
-	"..\alloc.h"\
+	"..\..\alloc.h"\
 	

 !ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE PPC) Release"

 DEP_CPP_PNGTE=\
-	"..\..\zlib\zconf.h"\
-	"..\..\zlib\zlib.h"\
-	"..\png.h"\
-	"..\pngasmrd.h"\
-	"..\pngconf.h"\
+	"..\..\..\zlib\zconf.h"\
+	"..\..\..\zlib\zlib.h"\
+	"..\..\png.h"\
+	"..\..\pngconf.h"\
 	
 NODEP_CPP_PNGTE=\
-	"..\alloc.h"\
+	"..\..\alloc.h"\
 	

 !ELSEIF  "$(CFG)" == "pngtest - Win32 (WCE PPC) Debug"

 DEP_CPP_PNGTE=\
-	"..\..\zlib\zconf.h"\
-	"..\..\zlib\zlib.h"\
-	"..\png.h"\
-	"..\pngasmrd.h"\
-	"..\pngconf.h"\
+	"..\..\..\zlib\zconf.h"\
+	"..\..\..\zlib\zlib.h"\
+	"..\..\png.h"\
+	"..\..\pngconf.h"\
 	
 NODEP_CPP_PNGTE=\
-	"..\alloc.h"\
+	"..\..\alloc.h"\
 	

 !ENDIF 
--- a/projects/wince/pngtest.dsw
+++ b/projects/wince/pngtest.dsw
--- a/projects/wince/winmain.c
+++ b/projects/wince/winmain.c
--- a/projects/wince/zlib.diff
+++ b/projects/wince/zlib.diff
--- a/projects/wince/zlibce.def
+++ b/projects/wince/zlibce.def
--- a/projects/wince/zlibce.dsp
+++ b/projects/wince/zlibce.dsp
--- a/scripts/makefile.acorn
+++ b/scripts/makefile.acorn
@@ -2,40 +2,40 @@


 # Toolflags:
-CCflags = -c -depend !Depend -IC:,Zlib: -g -throwback  -DRISCOS  -fnah 
+CCflags = -c -depend !Depend -IC:,Zlib: -g -throwback  -DRISCOS  -fnah
 C++flags = -c -depend !Depend -IC: -throwback
 Linkflags = -aif -c++ -o $@
 ObjAsmflags = -throwback -NoCache -depend !Depend
 CMHGflags = 
-LibFileflags = -c -l -o $@ 
+LibFileflags = -c -l -o $@
 Squeezeflags = -o $@


 # Final targets:
@.libpng-lib:   @.o.png @.o.pngerror @.o.pngrio @.o.pngwio @.o.pngmem \
 	@.o.pngpread @.o.pngset @.o.pngget @.o.pngread @.o.pngrtran \
-	@.o.pngrutil @.o.pngtrans @.o.pngwrite @.o.pngwtran @.o.pngwutil 
+	@.o.pngrutil @.o.pngtrans @.o.pngwrite @.o.pngwtran @.o.pngwutil
 	LibFile $(LibFileflags) @.o.png @.o.pngerror @.o.pngrio @.o.pngrtran \
 	@.o.pngmem @.o.pngpread @.o.pngset @.o.pngget @.o.pngread @.o.pngwio \
-	@.o.pngrutil @.o.pngtrans  @.o.pngwrite @.o.pngwtran @.o.pngwutil 
+	@.o.pngrutil @.o.pngtrans  @.o.pngwrite @.o.pngwtran @.o.pngwutil
@.mm-libpng-lib:   @.mm.png @.mm.pngerror @.mm.pngrio @.mm.pngwio @.mm.pngmem \
 	@.mm.pngpread @.mm.pngset @.mm.pngget @.mm.pngread @.mm.pngrtran \
-	@.mm.pngrutil @.mm.pngtrans @.mm.pngwrite @.mm.pngwtran @.mm.pngwutil 
+	@.mm.pngrutil @.mm.pngtrans @.mm.pngwrite @.mm.pngwtran @.mm.pngwutil
 	LibFile $(LibFileflags) @.mm.png @.mm.pngerror @.mm.pngrio \
 	@.mm.pngwio @.mm.pngmem @.mm.pngpread @.mm.pngset @.mm.pngget \
 	@.mm.pngread @.mm.pngrtran @.mm.pngrutil @.mm.pngtrans @.mm.pngwrite \
-	@.mm.pngwtran @.mm.pngwutil 
+	@.mm.pngwtran @.mm.pngwutil


 # User-editable dependencies:
 # (C) Copyright 1997 Tom Tanner
-Test: @.pngtest 
+Test: @.pngtest
 	<Prefix$Dir>.pngtest
 	@remove <Prefix$Dir>.pngtest

 #It would be nice if you could stop "make" listing from here on!
-@.pngtest:   @.o.pngtest @.libpng-lib C:o.Stubs Zlib:zlib_lib 
-	Link $(Linkflags) @.o.pngtest @.libpng-lib C:o.Stubs Zlib:zlib_lib 
+@.pngtest:   @.o.pngtest @.libpng-lib C:o.Stubs Zlib:zlib_lib
+	Link $(Linkflags) @.o.pngtest @.libpng-lib C:o.Stubs Zlib:zlib_lib

 .SUFFIXES: .o .mm .c

--- a/scripts/makefile.aix
+++ b/scripts/makefile.aix
@@ -0,0 +1,84 @@
+# makefile for libpng using gcc (generic, static library)
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# Copyright (C) 2000 Cosmin Truta
+# Copyright (C) 2000 Marc O. Gloor (AIX support added, from makefile.gcc)
+# For conditions of distribution and use, see copyright notice in png.h
+
+# Location of the zlib library and include files
+ZLIBINC = ../zlib
+ZLIBLIB = ../zlib
+
+# Compiler, linker, lib and other tools
+CC = gcc
+LD = $(CC)
+AR = ar rcs
+RANLIB = ranlib
+RM = rm -f
+
+# read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
+# have to change it.
+PNGMAJ = 2
+PNGMIN = 1.0.9
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
+prefix=/usr/local
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+
+CDEBUG = -g -DPNG_DEBUG=5
+LDDEBUG =
+CRELEASE = -O2
+LDRELEASE = -s
+CFLAGS = -I$(ZLIBINC) -Wall $(CRELEASE)
+LDFLAGS = -L. -L$(ZLIBLIB) -lpng -lz -lm $(LDRELEASE)
+
+# File extensions
+O=.o
+A=.a
+E=
+
+# Variables
+OBJS = png$(O) pngerror$(O) pngget$(O) pngmem$(O) pngpread$(O) \
+	pngread$(O) pngrio$(O) pngrtran$(O) pngrutil$(O) pngset$(O) \
+	pngtrans$(O) pngwio$(O) pngwrite$(O) pngwtran$(O) pngwutil$(O)
+
+# Targets
+all: libpng$(A) pngtest$(E)
+
+libpng$(A): $(OBJS)
+	$(AR) $@ $(OBJS)
+	$(RANLIB) $@
+
+test: pngtest$(E)
+	./pngtest$(E)
+
+pngtest$(E): pngtest$(O) libpng$(A)
+	$(LD) -o $@ pngtest$(O) $(LDFLAGS)
+
+install: libpng.a
+	-@if [ ! -d $(INCPATH)  ]; then mkdir $(INCPATH); fi
+	-@if [ ! -d $(LIBPATH) ]; then mkdir $(LIBPATH); fi
+	cp png.h pngconf.h $(INCPATH)
+	chmod 644 $(INCPATH)/png.h $(INCPATH)/pngconf.h
+	cp libpng.a $(LIBPATH)
+
+clean:
+	/bin/rm -f *.o libpng.a libpng.so* pngtest pngout.png
+
+png$(O): png.h pngconf.h
+pngerror$(O): png.h pngconf.h
+pngget$(O): png.h pngconf.h
+pngmem$(O): png.h pngconf.h
+pngpread$(O): png.h pngconf.h
+pngread$(O): png.h pngconf.h
+pngrio$(O): png.h pngconf.h
+pngrtran$(O): png.h pngconf.h
+pngrutil$(O): png.h pngconf.h
+pngset$(O): png.h pngconf.h
+pngtest$(O): png.h pngconf.h
+pngtrans$(O): png.h pngconf.h
+pngwio$(O): png.h pngconf.h
+pngwrite$(O): png.h pngconf.h
+pngwtran$(O): png.h pngconf.h
+pngwutil$(O): png.h pngconf.h
+
--- a/scripts/makefile.amiga
+++ b/scripts/makefile.amiga
@@ -14,7 +14,7 @@ CC=sc
 #          So use V6.55 or set NOOPTGO!!!!!!!!!
 CFLAGS= NOSTKCHK PARMS=REG OPTIMIZE OPTGO OPTPEEP OPTINLOCAL OPTINL\
 	OPTLOOP OPTRDEP=4 OPTDEP=4 OPTCOMP=4 INCLUDEDIR=$(ZLIB) \
-	DEFINE=PNG_INTERNAL 
+	DEFINE=PNG_INTERNAL
 #linker flags
 LDFLAGS= SD ND BATCH
 #link libs
--- a/scripts/makefile.bd32
+++ b/scripts/makefile.bd32
@@ -21,7 +21,7 @@ PNGLIB=png32bd.lib

 CC=bcc32
 CFLAGS= -ps -O2 -N- -k- -d -r- -w-par -w-aus -I$(ZLIBDIR) \
-  -DPNG_NO_GLOBAL_ARRAYS #-DPNG_DEBUG=5
+	-DPNG_NO_GLOBAL_ARRAYS #-DPNG_DEBUG=5
 #LINK=tlink32
 #LINK=ilink32
 LINK=bcc32
--- a/scripts/makefile.beos
+++ b/scripts/makefile.beos
@@ -10,6 +10,12 @@ CC=gcc
 ZLIBLIB=/usr/local/lib
 ZLIBINC=/usr/local/include

+# read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
+# have to change it.
+PNGMAJ = 2
+PNGMIN = 1.0.9
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
 ALIGN=
 # For i386:
 # ALIGN=-malign-loops=2 -malign-functions=2
@@ -28,12 +34,6 @@ LDFLAGS=-L. -Wl,-soname=libpng.so.$(PNGMAJ) -L$(ZLIBLIB) -lz -lm
 RANLIB=ranlib
 #RANLIB=echo

-# read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
-# have to change it.
-PNGMAJ = 2
-PNGMIN = 1.0.8beta3
-PNGVER = $(PNGMAJ).$(PNGMIN)
-
 # where make install puts libpng.a, libpng.so*, and png.h
 prefix=/usr/local
 INCPATH=$(prefix)/include
--- a/scripts/makefile.cygwin
+++ b/scripts/makefile.cygwin
@@ -0,0 +1,187 @@
+# makefile for cygwin on x86
+#   builds both dll (with import lib) and static lib versions
+#   of the library, and builds two copies of pngtest: one
+#   statically linked and one dynamically linked.
+#
+#   based on makefile for linux-elf w/mmx by:
+# Copyright (C) 1998-2000 Greg Roelofs
+# Copyright (C) 1996, 1997 Andreas Dilger
+# For conditions of distribution and use, see copyright notice in png.h
+
+# To enable assembler optimizations, add '-DPNG_USE_PNGGCCRD' to
+# $CFLAGS, and include pnggccrd.o in $OBJS, below.
+
+CC=gcc
+
+# where "make install" puts libpng.a, libpng.so*, png.h, and pngconf.h
+prefix=/usr
+
+# Where the zlib library and include files are located
+ZLIBLIB=${prefix}/lib
+ZLIBINC=${prefix}/include
+#ZLIBLIB=../zlib
+#ZLIBINC=../zlib
+
+ALIGN=
+# for i386:
+#ALIGN=-malign-loops=2 -malign-functions=2
+
+WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
+	-Wmissing-declarations -Wtraditional -Wcast-align \
+	-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
+
+#CFLAGS=-DPNG_USE_PNGGCCRD -I$(ZLIBINC) -Wall -O3 $(ALIGN) -funroll-loops \
+#        -fomit-frame-pointer  # $(WARNMORE) -g -DPNG_DEBUG=5
+CFLAGS=-I$(ZLIBINC) -Wall -O3 $(ALIGN) -funroll-loops \
+	-fomit-frame-pointer
+
+# read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
+# have to change it.
+PNGMAJ = 2
+#PNGDLL = $%DLLNUM% # msvc
+PNGDLL = 2 # cygwin 1.0.9
+PNGMIN = 1.0.9
+PNGMIN_BASE = 1.0.9
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
+SHAREDLIB=cygpng$(PNGDLL).dll
+STATLIB=libpng.a
+IMPLIB=libpng.dll.a
+SHAREDDEF=libpng.def
+LIBS=$(SHAREDLIB) $(STATLIB)
+EXE=.exe
+
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz
+LDSHARED=gcc -shared -Wl,--enable-auto-image-base
+LDEXTRA=-Wl,--out-implib=$(IMPLIB) $(SHAREDDEF)
+
+RANLIB=ranlib
+#RANLIB=echo
+
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+BINPATH=$(prefix)/bin
+MANPATH=$(prefix)/man
+MAN3PATH=$(MANPATH)/man3
+DOCPATH=$(prefix)/doc/libpng-$(PNGMIN_BASE)
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+	pngwtran.o pngmem.o pngerror.o pngpread.o # pnggccrd.o
+
+OBJSDLL = $(OBJS:.o=.pic.o)
+
+.SUFFIXES:      .c .o .pic.o
+
+%.o : %.c
+	$(CC) -c $(CFLAGS) -DPNG_STATIC -DZLIB_STATIC -o $@ $<
+
+%.pic.o : %.c
+	$(CC) -c $(CFLAGS) -DPNG_BUILD_DLL -o $@ $<
+
+all: all-static all-shared
+
+static: all-static
+
+shared: all-shared
+
+all-static: $(STATLIB) pngtest-stat$(EXE)
+
+all-shared: $(SHAREDLIB) pngtest$(EXE)
+
+pnggccrd.o:	png.h pngconf.h
+	@echo ""
+	@echo '    You can ignore the single "control reaches end of non-void function"'
+	@echo '    warning and multiple "<variable> defined but not used" warnings:'
+	@echo ""
+	$(CC) -c $(CFLAGS) -DPNG_STATIC -DZLIB_STATIC -o $@ $*.c
+
+pnggccrd.pic.o:	png.h pngconf.h
+	@echo ""
+	@echo '    You can ignore the single "control reaches end of non-void function"'
+	@echo '    warning and multiple "<variable> defined but not used" warnings:'
+	@echo ""
+	$(CC) -c $(CFLAGS) -DPNG_BUILD_DLL -o $@ pnggccrd.c
+
+$(STATLIB): $(OBJS)
+	ar rc $@ $(OBJS)
+	$(RANLIB) $@
+
+$(SHAREDDEF): projects/msvc/png32ms.def
+	cat $< | sed -e '1{G;s/^\(.*\)\(\n\)/EXPORTS/;};2,/^EXPORTS/d' > $@
+
+$(SHAREDLIB): $(OBJSDLL) $(SHAREDDEF)
+	$(LDSHARED) -o $@ $(LDEXTRA) $(OBJSDLL) -L. -L$(ZLIBLIB) -lz
+
+pngtest$(EXE): pngtest.pic.o $(SHAREDLIB)
+	$(CC) $(CFLAGS) $< $(LDFLAGS) -o $@
+
+pngtest-stat$(EXE): pngtest.o $(STATLIB)
+	$(CC) -static $(CFLAGS) $< $(LDFLAGS) -o $@
+
+pngtest.pic.o: pngtest.c
+	$(CC) $(CFLAGS) -c $< -o $@
+
+pngtest.o: pngtest.c
+	$(CC) $(CFLAGS) -DPNG_STATIC -DZLIB_STATIC -c $< -o $@
+
+test: test-static test-shared
+
+test-static: pngtest-stat$(EXE)
+	./pngtest-stat
+
+test-shared: pngtest$(EXE)
+	./pngtest
+
+install: install-static install-shared
+
+install-static: $(STATLIB) install-headers install-docs install-man
+	-@if [ ! -d $(LIBPATH) ]; then mkdir -p $(LIBPATH); fi
+	install -m 755 $(STATLIB) $(LIBPATH)
+
+install-shared: $(SHAREDLIB) install-headers install-docs install-man
+	-@if [ ! -d $(LIBPATH) ]; then mkdir -p $(LIBPATH); fi
+	-@if [ ! -d $(BINPATH) ]; then mkdir -p $(BINPATH); fi
+	install -m 755 $(IMPLIB) $(LIBPATH)
+	install -s -m 755 $(SHAREDLIB) $(BINPATH)
+
+install-headers:
+	-@if [ ! -d $(INCPATH)  ]; then mkdir -p $(INCPATH); fi
+	install -m 644 png.h pngconf.h $(INCPATH)
+
+install-docs:
+	-@if [ ! -d $(DOCPATH) ]; then mkdir -p $(DOCPATH); fi
+	install -m 644 $(DOCS) $(DOCPATH)
+
+install-man:
+	-@if [ ! -d $(MAN3PATH) ]; then mkdir -p $(MAN3PATH); fi
+	install -m 644 libpngpf.3 libpng.3 $(MAN3PATH)
+
+clean:
+	/bin/rm -f *.pic.o *.o $(STATLIB) $(IMPLIB) $(SHAREDLIB) \
+	pngtest-stat$(EXE) pngtest$(EXE) pngout.png $(SHAREDDEF)
+
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+writelock:
+	chmod a-w *.[ch35] $(DOCS) scripts/*
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o png.pic.o:		png.h pngconf.h png.c
+pngerror.o pngerror.pic.o:	png.h pngconf.h pngerror.c
+pngrio.o pngrio.pic.o:		png.h pngconf.h pngrio.c
+pngwio.o pngwio.pic.o:		png.h pngconf.h pngwio.c
+pngmem.o pngmem.pic.o:		png.h pngconf.h pngmem.c
+pngset.o pngset.pic.o:		png.h pngconf.h pngset.c
+pngget.o pngget.pic.o:		png.h pngconf.h pngget.c
+pngread.o pngread.pic.o:	png.h pngconf.h pngread.c
+pngrtran.o pngrtran.pic.o:	png.h pngconf.h pngrtran.c
+pngrutil.o pngrutil.pic.o:	png.h pngconf.h pngrutil.c
+pngtrans.o pngtrans.pic.o:	png.h pngconf.h pngtrans.c
+pngwrite.o pngwrite.pic.o:	png.h pngconf.h pngwrite.c
+pngwtran.o pngwtran.pic.o:	png.h pngconf.h pngwtran.c
+pngwutil.o pngwutil.pic.o:	png.h pngconf.h pngwutil.c
+pngpread.o pngpread.pic.o:	png.h pngconf.h pngpread.c
+
+pngtest.o:			png.h pngconf.h pngtest.c
+pngtest-stat.o:			png.h pngconf.h pngtest.c
--- a/scripts/makefile.dec
+++ b/scripts/makefile.dec
@@ -1,9 +1,12 @@
 # makefile for libpng on DEC Alpha Unix
+# Copyright (C) 2000 Glenn Randers-Pehrson
 # Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
 # For conditions of distribution and use, see copyright notice in png.h

 # where make install puts libpng.a and png.h
 prefix=/usr/local
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib

 # Where the zlib library and include files are located
 #ZLIBLIB=/usr/local/lib
@@ -14,7 +17,7 @@ ZLIBINC=../zlib
 # read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
 # have to change it.
 PNGMAJ = 2
-PNGMIN = 1.0.8beta3
+PNGMIN = 1.0.9
 PNGVER = $(PNGMAJ).$(PNGMIN)

 CC=cc
@@ -24,7 +27,6 @@ LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
 #RANLIB=echo
 RANLIB=ranlib

-
 OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
 	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
 	pngwtran.o pngmem.o pngerror.o pngpread.o
@@ -51,18 +53,18 @@ test: pngtest
 	./pngtest

 install: libpng.a libpng.so.$(PNGVER)
-	-@mkdir $(prefix)/include
-	-@mkdir $(prefix)/lib
-	cp png.h $(prefix)/include
-	cp pngconf.h $(prefix)/include
-	chmod 644 $(prefix)/include/png.h
-	chmod 644 $(prefix)/include/pngconf.h
-	cp libpng.a $(prefix)/lib
-	cp libpng.so.$(PNGVER) $(prefix)/lib
-	chmod 644 $(prefix)/lib/libpng.a
-	chmod 644 $(prefix)/lib/libpng.so.$(PNGVER)
+	-@mkdir $(INCPATH)
+	-@mkdir $(LIBPATH)
+	cp png.h $(INCPATH)
+	cp pngconf.h $(INCPATH)
+	chmod 644 $(INCPATH)/png.h
+	chmod 644 $(INCPATH)/pngconf.h
+	cp libpng.a $(LIBPATH)
+	cp libpng.so.$(PNGVER) $(LIBPATH)
+	chmod 644 $(LIBPATH)/libpng.a
+	chmod 644 $(LIBPATH)/libpng.so.$(PNGVER)
 	-@/bin/rm -f $(LIBPATH)/libpng.so.$(PNGMAJ) $(LIBPATH)/libpng.so
-	(cd $(LIBPATH); ln -f -s libpng.so.$(PNGVER) libpng.so.$(PNGMAJ); \
+	(cd $(LIBPATH)); ln -f -s libpng.so.$(PNGVER) libpng.so.$(PNGMAJ); \
 	 ln -f -s libpng.so.$(PNGMAJ) libpng.so)

 clean:
--- a/scripts/makefile.gcmmx
+++ b/scripts/makefile.gcmmx
@@ -1,11 +1,17 @@
 # makefile for libpng on Linux ELF with gcc using MMX assembler code
 # Copyright 1996-1997 Andreas Dilger
-# Copyright 1998-2000 Greg Roelofs
+# Copyright 1998-2001 Greg Roelofs
 # For conditions of distribution and use, see copyright notice in png.h

+# CAUTION: Do not use this makefile with gcc versions 2.7.2.2 and earlier.
+
+# NOTE:  When testing MMX performance on a multitasking system, make sure
+#        there are no floating-point programs (e.g., SETI@Home) running in
+#        the background!  Context switches between MMX and FPU are expensive.
+
 CC=gcc

-# where "make install" puts libpng.a, libpng.so*, png.h and pngconf.h
+# where "make install" puts libpng.a, libpng.so*, png.h, and pngconf.h
 prefix=/usr/local

 # Where the zlib library and include files are located
@@ -24,9 +30,20 @@ WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \

 # for pgcc version 2.95.1, -O3 is buggy; don't use it.

+### for generic gcc:
 CFLAGS=-DPNG_USE_PNGGCCRD -I$(ZLIBINC) -Wall -O3 $(ALIGN) -funroll-loops \
-        -fomit-frame-pointer  # $(WARNMORE) -g -DPNG_DEBUG=5
+	-fomit-frame-pointer  # $(WARNMORE) -g -DPNG_DEBUG=5
+### for gcc 2.95.2 on 686:
+#CFLAGS=-DPNG_USE_PNGGCCRD -I$(ZLIBINC) -Wall -O3 \
+#	-mcpu=i686 -malign-double -ffast-math -fstrict-aliasing \
+#	$(ALIGN) -funroll-loops -funroll-all-loops -fomit-frame-pointer 
+### for gcc 2.7.2.3 on 486 and up:
+#CFLAGS=-DPNG_USE_PNGGCCRD -I$(ZLIBINC) -Wall -O3 \
+#	-m486 -malign-double -ffast-math \
+#	$(ALIGN) -funroll-loops -funroll-all-loops -fomit-frame-pointer 
+
 LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng -lz -lm
+LDFLAGS_A=-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) libpng.a -lz -lm

 RANLIB=ranlib
 #RANLIB=echo
@@ -34,7 +51,7 @@ RANLIB=ranlib
 # read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
 # have to change it.
 PNGMAJ = 2
-PNGMIN = 1.0.8beta3
+PNGMIN = 1.0.9
 PNGVER = $(PNGMAJ).$(PNGMIN)

 INCPATH=$(prefix)/include
@@ -51,21 +68,23 @@ OBJSDLL = $(OBJS:.o=.pic.o)
 .c.pic.o:
 	$(CC) -c $(CFLAGS) -fPIC -o $@ $*.c

-all: libpng.a libpng.so pngtest
+all: libpng.a libpng.so pngtest pngtest-static

-pnggccrd.o:	pnggccrd.c png.h pngconf.h pngasmrd.h
+pnggccrd.o:	pnggccrd.c png.h pngconf.h
 	@echo ""
 	@echo '    You can ignore the single "control reaches end of non-void function"'
 	@echo '    warning and multiple "<variable> defined but not used" warnings:'
 	@echo ""
 	$(CC) -c $(CFLAGS) -o $@ $*.c
+	@echo ""

-pnggccrd.pic.o:	pnggccrd.c png.h pngconf.h pngasmrd.h
+pnggccrd.pic.o:	pnggccrd.c png.h pngconf.h
 	@echo ""
 	@echo '    You can ignore the single "control reaches end of non-void function"'
 	@echo '    warning and multiple "<variable> defined but not used" warnings:'
 	@echo ""
 	$(CC) -c $(CFLAGS) -fPIC -o $@ pnggccrd.c
+	@echo ""

 libpng.a: $(OBJS)
 	ar rc $@ $(OBJS)
@@ -84,8 +103,18 @@ libpng.so.$(PNGVER): $(OBJSDLL)
 pngtest: pngtest.o libpng.so
 	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)

-test: pngtest
+pngtest-static: pngtest.o libpng.a
+	$(CC) -o pngtest-static $(CFLAGS) pngtest.o $(LDFLAGS_A)
+
+test: pngtest pngtest-static
+	@echo ""
+	@echo "   Testing dynamically linked version:"
+	@echo ""
 	./pngtest
+	@echo ""
+	@echo "   Testing statically linked version:"
+	@echo ""
+	./pngtest-static

 install: libpng.a libpng.so.$(PNGVER)
 	-@if [ ! -d $(INCPATH)  ]; then mkdir $(INCPATH); fi
@@ -105,7 +134,7 @@ DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
 writelock:
 	chmod a-w *.[ch35] $(DOCS) scripts/*

-png.o png.pic.o:		png.h pngconf.h png.c pngasmrd.h
+png.o png.pic.o:		png.h pngconf.h png.c
 pngerror.o pngerror.pic.o:	png.h pngconf.h pngerror.c
 pngrio.o pngrio.pic.o:		png.h pngconf.h pngrio.c
 pngwio.o pngwio.pic.o:		png.h pngconf.h pngwio.c
@@ -114,7 +143,7 @@ pngset.o pngset.pic.o:		png.h pngconf.h pngset.c
 pngget.o pngget.pic.o:		png.h pngconf.h pngget.c
 pngread.o pngread.pic.o:	png.h pngconf.h pngread.c
 pngrtran.o pngrtran.pic.o:	png.h pngconf.h pngrtran.c
-pngrutil.o pngrutil.pic.o:	png.h pngconf.h pngrutil.c pngasmrd.h
+pngrutil.o pngrutil.pic.o:	png.h pngconf.h pngrutil.c
 pngtrans.o pngtrans.pic.o:	png.h pngconf.h pngtrans.c
 pngwrite.o pngwrite.pic.o:	png.h pngconf.h pngwrite.c
 pngwtran.o pngwtran.pic.o:	png.h pngconf.h pngwtran.c
--- a/scripts/makefile.hpux
+++ b/scripts/makefile.hpux
@@ -1,7 +1,7 @@
 # makefile for libpng, HPUX (10.20 and 11.00)
-# Copyright (C) 1999 Glenn Randers-Pehrson
+# Copyright (C) 1999, 2000 Glenn Randers-Pehrson
 # Copyright (C) 1995 Guy Eric Schalnat, Group 42
-# contributed by Jim Rice, Hewlett Packard
+# contributed by Jim Rice and updated by Chris Schleicher, Hewlett Packard
 # For conditions of distribution and use, see copyright notice in png.h

 # Where the zlib library and include files are located
@@ -15,6 +15,12 @@ LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm

 RANLIB=ranlib

+# read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
+# have to change it.
+PNGMAJ = 2
+PNGMIN = 1.0.9
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
 # where make install puts libpng.a and png.h
 prefix=/opt/libpng

@@ -22,12 +28,29 @@ OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
 	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
 	pngwtran.o pngmem.o pngerror.o pngpread.o

-all: libpng.a pngtest
+OBJSDLL = $(OBJS:.o=.pic.o)
+
+.SUFFIXES:	.c .o .pic.o
+
+.c.pic.o:
+	$(CC) -c $(CFLAGS) +z -o $@ $*.c
+
+all: libpng.a libpng.sl pngtest

 libpng.a: $(OBJS)
 	ar rc $@  $(OBJS)
 	$(RANLIB) $@

+libpng.sl: libpng.sl.$(PNGMAJ)
+	ln -f -s libpng.sl.$(PNGMAJ) libpng.sl
+
+libpng.sl.$(PNGMAJ): libpng.sl.$(PNGVER)
+	ln -f -s libpng.sl.$(PNGVER) libpng.sl.$(PNGMAJ)
+
+libpng.sl.$(PNGVER): $(OBJSDLL)
+	$(LD) -b -L$(ZLIBLIB) +s +b $(ZLIBLIB) \
+	+h libpng.sl.$(PNGMAJ) -o libpng.sl.$(PNGVER) $(OBJSDLL) -lz
+
 pngtest: pngtest.o libpng.a
 	$(CC) -o pngtest $(CCFLAGS) pngtest.o $(LDFLAGS)

@@ -41,11 +64,14 @@ install: libpng.a
 	cp pngconf.h $(prefix)/include
 	chmod 644 $(prefix)/include/png.h
 	chmod 644 $(prefix)/include/pngconf.h
-	cp libpng.a $(prefix)/lib
+	cp libpng.a libpng.sl.$(PNGVER) $(prefix)/lib
 	chmod 644 $(prefix)/lib/libpng.a
+	chmod 755 $(prefix)/lib/libpng.sl.$(PNGVER)
+	(cd $(prefix)/lib; ln -f -s libpng.sl.$(PNGVER) libpng.sl.$(PNGMAJ); \
+	ln -f -s libpng.sl.$(PNGMAJ) libpng.sl)

 clean:
-	rm -f *.o libpng.a pngtest pngout.png
+	rm -f *.o libpng.a libpng.sl* pngtest pngout.png

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
 writelock:
--- a/scripts/makefile.intel
+++ b/scripts/makefile.intel
@@ -42,9 +42,9 @@ LDFLAGS=/SUBSYSTEM:CONSOLE /NOLOGO

 O=.obj

-OBJS=png$(O) pngset$(O) pngget$(O) pngrutil$(O) pngtrans$(O) pngwutil$(O)\
-     pngmem$(O) pngpread$(O) pngread$(O) pngerror$(O) pngwrite$(O)\
-     pngrtran$(O) pngwtran$(O) pngrio$(O) pngwio$(O) pngvcrd$(O)
+OBJS=png$(O) pngset$(O) pngget$(O) pngrutil$(O) pngtrans$(O) pngwutil$(O) \
+pngmem$(O) pngpread$(O) pngread$(O) pngerror$(O) pngwrite$(O) \
+pngrtran$(O) pngwtran$(O) pngrio$(O) pngwio$(O) pngvcrd$(O)


 all: test
@@ -70,7 +70,7 @@ pngrtran$(O): png.h pngconf.h
 pngrutil$(O): png.h pngconf.h
 	$(CC) $(CFLAGS) $*.c $(ERRFILE)

-pngvcrd$(O): png.h pngconf.h pngasmrd.h
+pngvcrd$(O): png.h pngconf.h
 	$(CC) $(CFLAGS) $*.c $(ERRFILE)

 pngerror$(O): png.h pngconf.h
--- a/scripts/makefile.linux
+++ b/scripts/makefile.linux
@@ -34,7 +34,7 @@ RANLIB=ranlib
 # read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
 # have to change it.
 PNGMAJ = 2
-PNGMIN = 1.0.8beta3
+PNGMIN = 1.0.9
 PNGVER = $(PNGMAJ).$(PNGMIN)

 INCPATH=$(prefix)/include
--- a/scripts/makefile.macosx
+++ b/scripts/makefile.macosx
@@ -0,0 +1,72 @@
+# makefile for libpng, MACOS X
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# For conditions of distribution and use, see copyright notice in png.h
+
+# where make install puts libpng.a and png.h
+prefix=/usr/local
+
+# Where the zlib library and include files are located
+#ZLIBLIB=/usr/local/lib
+#ZLIBINC=/usr/local/include
+ZLIBLIB=../zlib
+ZLIBINC=../zlib
+
+CC=cc
+CFLAGS=-I$(ZLIBINC) -O # -g -DPNG_DEBUG=5
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz
+
+#RANLIB=echo
+RANLIB=ranlib
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+	pngwtran.o pngmem.o pngerror.o pngpread.o
+
+all: libpng.a pngtest
+
+libpng.a: $(OBJS)
+	ar rc $@  $(OBJS)
+	$(RANLIB) $@
+
+pngtest: pngtest.o libpng.a
+	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+	./pngtest
+
+install: libpng.a
+	-@mkdir $(prefix)/include
+	-@mkdir $(prefix)/lib
+	cp png.h $(prefix)/include
+	cp pngconf.h $(prefix)/include
+	chmod 644 $(prefix)/include/png.h
+	chmod 644 $(prefix)/include/pngconf.h
+	cp libpng.a $(prefix)/lib
+	chmod 644 $(prefix)/lib/libpng.a
+
+clean:
+	rm -f *.o libpng.a pngtest pngout.png
+
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+writelock:
+	chmod a-w *.[ch35] $(DOCS) scripts/*
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o: png.h pngconf.h
+pngerror.o: png.h pngconf.h
+pngrio.o: png.h pngconf.h
+pngwio.o: png.h pngconf.h
+pngmem.o: png.h pngconf.h
+pngset.o: png.h pngconf.h
+pngget.o: png.h pngconf.h
+pngread.o: png.h pngconf.h
+pngrtran.o: png.h pngconf.h
+pngrutil.o: png.h pngconf.h
+pngtest.o: png.h pngconf.h
+pngtrans.o: png.h pngconf.h
+pngwrite.o: png.h pngconf.h
+pngwtran.o: png.h pngconf.h
+pngwutil.o: png.h pngconf.h
+pngpread.o: png.h pngconf.h
+
--- a/scripts/makefile.msc
+++ b/scripts/makefile.msc
@@ -9,7 +9,7 @@ CFLAGS=-Oait -Gs -nologo -W3 -A$(MODEL) -I..\zlib
 #-Ox generates bad code with MSC 5.1
 CC=cl
 LD=link
-LDFLAGS=/e/st:0x1500/noe 
+LDFLAGS=/e/st:0x1500/noe
 O=.obj

 #uncomment next to put error messages in a file
@@ -76,7 +76,7 @@ libpng.lib: $(OBJS1) $(OBJS2) $(OBJS3)
 	lib libpng $(OBJS2);
 	lib libpng $(OBJS3);

-pngtest.exe: pngtest.obj libpng.lib 
+pngtest.exe: pngtest.obj libpng.lib
 	$(LD) $(LDFLAGS) pngtest.obj,,,libpng.lib ..\zlib\zlib.lib ;

 test: pngtest.exe
--- a/scripts/makefile.sco
+++ b/scripts/makefile.sco
@@ -16,7 +16,7 @@ prefix=/usr/local
 ZLIBLIB=../zlib
 ZLIBINC=../zlib

-CFLAGS= -dy -belf -I$(ZLIBINC) -O3 
+CFLAGS= -dy -belf -I$(ZLIBINC) -O3
 LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm

 #RANLIB=ranlib
@@ -25,7 +25,7 @@ RANLIB=echo
 # read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
 # have to change it.
 PNGMAJ = 2
-PNGMIN = 1.0.8beta3
+PNGMIN = 1.0.9
 PNGVER = $(PNGMAJ).$(PNGMIN)

 INCPATH=$(prefix)/include
--- a/scripts/makefile.sggcc
+++ b/scripts/makefile.sggcc
@@ -13,14 +13,14 @@ ZLIBINC=/usr/local/include

 CC=gcc

-WARNMORE=
-CFLAGS=-I$(ZLIBINC) -O2 $(WARNMORE) -fPIC -mabi=n32 # -g -DPNG_DEBUG=5
+WARNMORE= # -g -DPNG_DEBUG=5
+CFLAGS=-I$(ZLIBINC) -O2 $(WARNMORE) -fPIC -mabi=n32
 # zlib must also be compiled with n32
 LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
 LDSHARED=gcc -shared

-VER=1.0.8beta3
-LIBS=libpng.so.1.0.8beta3
+VER=1.0.9
+LIBS=libpng.so.1.0.9
 SHAREDLIB=libpng.so
 libdir=$(prefix)/lib32

--- a/scripts/makefile.sgi
+++ b/scripts/makefile.sgi
@@ -1,4 +1,5 @@
-# makefile for libpng
+# makefile for libpng (.a and .so), SGI IRIX with 'cc'
+# Copyright (C) 2001 Glenn Randers-Pehrson
 # Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
 # For conditions of distribution and use, see copyright notice in png.h

@@ -6,6 +7,9 @@
 prefix=/usr/local

 # Where the zlib library and include files are located
+# You can add the -n32 option; then zlib must also be compiled with -n32
+#ZLIBLIB=/usr/local/lib32
+#ZLIBINC=/usr/local/include
 #ZLIBLIB=/usr/local/lib
 #ZLIBINC=/usr/local/include
 ZLIBLIB=../zlib
@@ -15,8 +19,16 @@ CC=cc

 WARNMORE=-fullwarn
 # You can add the -n32 option; then zlib must also be compiled with -n32
-CFLAGS=-I$(ZLIBINC) -O $(WARNMORE) # -g -DPNG_DEBUG=5
+# Note: -KPIC is the default anyhow
+CFLAGS=-I$(ZLIBINC) -O $(WARNMORE) -KPIC # -g -DPNG_DEBUG=5
 LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
+LDSHARED=cc -shared
+
+VER=1.0.9
+SONUM=2
+SHAREDLIB=libpng.so
+libdir=$(prefix)
+#libdir=$(prefix)/lib32

 RANLIB=echo
 #RANLIB=ranlib
@@ -25,12 +37,20 @@ OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
 	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
 	pngwtran.o pngmem.o pngerror.o pngpread.o

-all: libpng.a pngtest
+all: libpng.a pngtest shared
+
+shared: $(SHAREDLIB).$(SONUM).$(VER)

 libpng.a: $(OBJS)
 	ar rc $@  $(OBJS)
 	$(RANLIB) $@

+$(SHAREDLIB).$(SONUM).$(VER): $(OBJS)
+	$(LDSHARED) -o $@ $(OBJS)
+	rm -f $(SHAREDLIB) $(SHAREDLIB).?
+	ln -s $@ $(SHAREDLIB)
+	ln -s $@ $(SHAREDLIB).$(SONUM)
+
 pngtest: pngtest.o libpng.a
 	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)

@@ -47,8 +67,16 @@ install: libpng.a
 	cp libpng.a $(prefix)/lib
 	chmod 644 $(prefix)/lib/libpng.a

+install-shared: $(SHAREDLIB).$(SONUM).$(VER)
+	cp $(SHAREDLIB).$(SONUM).$(VER) $(libdir); 
+	chmod 755 $(SHAREDLIB).$(SONUM).$(VER)
+	cd $(libdir);
+	rm -f $(SHAREDLIB) $(SHAREDLIB).$(SONUM);
+	ln -s $(SHAREDLIB).$(SONUM).$(VER) $(SHAREDLIB).$(SONUM);
+	ln -s $(SHAREDLIB).$(SONUM) $(SHAREDLIB);
+
 clean:
-	rm -f *.o libpng.a pngtest pngout.png
+	rm -f *.o libpng.a pngtest pngout.png $(SHAREDLIB).* 

 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
 writelock:
--- a/scripts/makefile.solaris
+++ b/scripts/makefile.solaris
@@ -31,7 +31,7 @@ RANLIB=echo
 # read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
 # have to change it.
 PNGMAJ = 2
-PNGMIN = 1.0.8beta3
+PNGMIN = 1.0.9
 PNGVER = $(PNGMAJ).$(PNGMIN)

 INCPATH=$(prefix)/include
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Glenn Randers-Pehrson	d4e8109a48	Imported from libpng-1.0.9.tar	2009-04-06 16:05:56 -05:00
Glenn Randers-Pehrson	be9de0f428	Imported from libpng-1.0.9rc2.tar	2009-04-06 16:05:54 -05:00
Glenn Randers-Pehrson	cdf140beec	Imported from libpng-1.0.9beta9.tar	2009-04-06 16:05:52 -05:00
Glenn Randers-Pehrson	231e687411	Imported from libpng-1.0.9beta8.tar	2009-04-06 16:05:51 -05:00
Glenn Randers-Pehrson	76e5fd642e	Imported from libpng-1.0.9beta7.tar	2009-04-06 16:05:49 -05:00
Glenn Randers-Pehrson	f05f8033b8	Imported from libpng-1.0.9rc1.tar	2009-04-06 16:05:47 -05:00
Glenn Randers-Pehrson	408b421265	Imported from libpng-1.0.9beta6.tar	2009-04-06 16:05:45 -05:00
Glenn Randers-Pehrson	2ad31ae31f	Imported from libpng-1.0.9beta5.tar	2009-04-06 16:05:43 -05:00
Glenn Randers-Pehrson	f6b4f45c7e	Imported from libpng-1.0.9beta4.tar	2009-04-06 16:05:41 -05:00
Glenn Randers-Pehrson	d56aca7104	Imported from libpng-1.0.9beta3.tar	2009-04-06 16:05:39 -05:00
Glenn Randers-Pehrson	f5ed0e130c	Imported from libpng-1.0.9beta2.tar	2009-04-06 16:05:37 -05:00
Glenn Randers-Pehrson	fbbb5ecb52	Imported from libpng-1.0.9beta10.tar	2009-04-06 16:05:35 -05:00
Glenn Randers-Pehrson	5e5c1e1f56	Imported from libpng-1.0.9beta1.tar	2009-04-06 16:05:33 -05:00
Glenn Randers-Pehrson	32fc5ceb91	Imported from libpng-1.0.8.tar	2009-04-06 16:05:31 -05:00
Glenn Randers-Pehrson	4766a244b2	Imported from libpng-1.0.8rc1.tar	2009-04-06 16:05:29 -05:00
Glenn Randers-Pehrson	a4d54bdb4a	Imported from libpng-1.0.8beta4.tar	2009-04-06 16:05:28 -05:00