diff --git a/ANNOUNCE b/ANNOUNCE
index 95d9acb..1ed7a26 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -1,5 +1,5 @@
 
-Libpng 1.2.3rc2 - May 1, 2002
+Libpng 1.2.3rc3 - May 1, 2002
 
 This is not intended to be a public release.  It will be replaced
 within a few weeks by a public version or by another test version.
@@ -32,6 +32,9 @@
     png_default_flush(), and png_push_fill_buffer() and included them in
     module definition files.
   Added "libpng.pc" dependency to the "install-shared" target in 15 makefiles.
+version 1.2.3rc3 [May 1, 2002]
+  Revised prototype for png_default_flush()
+  Remove old libpng.pc and libpngNN.pc before installing new ones.
 
 Send comments/corrections/commendations to
 png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu
diff --git a/CHANGES b/CHANGES
index f442531..0a48411 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1097,6 +1097,9 @@
     png_default_flush(), and png_push_fill_buffer() and included them in
     module definition files.
   Added "libpng.pc" dependency to the "install-shared" target in 15 makefiles.
+version 1.2.3rc3 [May 1, 2002]
+  Revised prototype for png_default_flush()
+  Remove old libpng.pc and libpngNN.pc before installing new ones.
 
 Send comments/corrections/commendations to
 png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu
diff --git a/INSTALL b/INSTALL
index 238ebac..660c810 100644
--- a/INSTALL
+++ b/INSTALL
@@ -1,5 +1,5 @@
 
-Installing libpng version 1.2.3rc2 - May 1, 2002
+Installing libpng version 1.2.3rc3 - May 1, 2002
 
 Before installing libpng, you must first install zlib.  zlib
 can usually be found wherever you got libpng.  zlib can be
@@ -10,7 +10,7 @@
 version of zlib that's installed.
 
 You can rename the directories that you downloaded (they
-might be called "libpng-1.2.3rc2" or "lpng109" and "zlib-1.1.3"
+might be called "libpng-1.2.3rc3" 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:
@@ -64,8 +64,8 @@
 include
 
  makefile.std      =>  Generic UNIX makefile (cc, creates static libpng.a)
- makefile.linux    =>  Linux/ELF makefile (gcc, creates libpng12.so.0.1.2.3rc2)
- makefile.gcmmx    =>  Linux/ELF makefile (gcc, creates libpng12.so.0.1.2.3rc2,
+ makefile.linux    =>  Linux/ELF makefile (gcc, creates libpng12.so.0.1.2.3rc3)
+ makefile.gcmmx    =>  Linux/ELF makefile (gcc, creates libpng12.so.0.1.2.3rc3,
                        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
@@ -86,10 +86,10 @@
  makefile.ne0bsd  =>  NetBSD/cc makefile, uses PNGGCCRD, makes libpng0.so
  makefile.openbsd  =>  OpenBSD makefile
  makefile.sgi      =>  Silicon Graphics IRIX makefile (cc, creates static lib)
- makefile.sggcc    =>  Silicon Graphics (gcc, creates libpng12.so.0.1.2.3rc2)
+ makefile.sggcc    =>  Silicon Graphics (gcc, creates libpng12.so.0.1.2.3rc3)
  makefile.sunos    =>  Sun makefile
- makefile.solaris  =>  Solaris 2.X makefile (gcc, creates libpng12.so.0.1.2.3rc2)
- makefile.so9      =>  Solaris 9 makefile (gcc, creates libpng12.so.0.1.2.3rc2)
+ makefile.solaris  =>  Solaris 2.X makefile (gcc, creates libpng12.so.0.1.2.3rc3)
+ makefile.so9      =>  Solaris 9 makefile (gcc, creates libpng12.so.0.1.2.3rc3)
  makefile.32sunu   =>  Sun Ultra 32-bit makefile
  makefile.64sunu   =>  Sun Ultra 64-bit makefile
  makefile.sco      =>  For SCO OSr5  ELF and Unixware 7 with Native cc
diff --git a/KNOWNBUG b/KNOWNBUG
index f05f79f..ff483ff 100644
--- a/KNOWNBUG
+++ b/KNOWNBUG
@@ -1,5 +1,5 @@
 
-Known bugs in libpng version 1.2.3rc2
+Known bugs in libpng version 1.2.3rc3
 
 1. April 22, 2001: pnggccrd.c has been reported to crash on NetBSD when
    reading interlaced PNG files, when assembler code is enabled.
diff --git a/LICENSE b/LICENSE
index 2189842..a230f23 100644
--- a/LICENSE
+++ b/LICENSE
@@ -8,7 +8,7 @@
 If you modify libpng you may insert additional notices immediately following
 this sentence.
 
-libpng versions 1.0.7, July 1, 2000, through 1.2.3rc2, May 1, 2002, are
+libpng versions 1.0.7, July 1, 2000, through 1.2.3rc3, May 1, 2002, are
 Copyright (c) 2000-2002 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
diff --git a/README b/README
index 3f7b849..8da1d42 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README for libpng 1.2.3rc2 - May 1, 2002 (shared library 2.1)
+README for libpng 1.2.3rc3 - May 1, 2002 (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.
@@ -187,9 +187,9 @@
        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 libpng12.so.0.1.2.3rc2)
+                            (gcc, creates libpng12.so.0.1.2.3rc3)
        makefile.gcmmx   =>  Linux/ELF makefile (gcc, creates
-                            libpng12.so.0.1.2.3rc2, uses assembler code
+                            libpng12.so.0.1.2.3rc3, 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
@@ -210,12 +210,12 @@
        makefile.ne0bsd =>  NetBSD/cc makefile, PNGGCCRD, makes libpng0.so
        makefile.openbsd =>  OpenBSD makefile
        makefile.sgi     =>  Silicon Graphics IRIX (cc, creates static lib)
-       makefile.sggcc   =>  Silicon Graphics (gcc, creates libpng12.so.0.1.2.3rc2)
+       makefile.sggcc   =>  Silicon Graphics (gcc, creates libpng12.so.0.1.2.3rc3)
        makefile.sunos   =>  Sun makefile
        makefile.solaris =>  Solaris 2.X makefile
-                            (gcc, creates libpng12.so.0.1.2.3rc2)
+                            (gcc, creates libpng12.so.0.1.2.3rc3)
        makefile.so9     =>  Solaris 9 makefile
-                            (gcc, creates libpng12.so.0.1.2.3rc2)
+                            (gcc, creates libpng12.so.0.1.2.3rc3)
        makefile.32sunu  =>  Sun Ultra 32-bit makefile
        makefile.64sunu  =>  Sun Ultra 64-bit makefile
        makefile.sco     =>  For SCO OSr5  ELF and Unixware 7 with Native cc
diff --git a/Y2KINFO b/Y2KINFO
index d45e906..8fba763 100644
--- a/Y2KINFO
+++ b/Y2KINFO
@@ -7,7 +7,7 @@
       an official declaration.
 
       This is your unofficial assurance that libpng from version 0.71 and
-      upward through 1.2.3rc2 are Y2K compliant.  It is my belief that earlier
+      upward through 1.2.3rc3 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
diff --git a/configure b/configure
index 5a0d097..254ac59 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 echo "
-  There is no \"configure\" script for Libpng-1.2.3rc2.  Instead, please
+  There is no \"configure\" script for Libpng-1.2.3rc3.  Instead, please
   copy the appropriate makefile for your system from the \"scripts\"
   directory.  Read the INSTALL file for more details.
 "
diff --git a/libpng.3 b/libpng.3
index 415c92e..602c9d2 100644
--- a/libpng.3
+++ b/libpng.3
@@ -1,6 +1,6 @@
 .TH LIBPNG 3 "May 1, 2002"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.2.3rc2
+libpng \- Portable Network Graphics (PNG) Reference Library 1.2.3rc3
 .SH SYNOPSIS
 \fI\fB
 
@@ -787,7 +787,7 @@
 .SH LIBPNG.TXT
 libpng.txt - A description on how to use and modify libpng
 
- libpng version 1.2.3rc2 - May 1, 2002
+ libpng version 1.2.3rc3 - May 1, 2002
  Updated and distributed by Glenn Randers-Pehrson
  <randeg@alum.rpi.edu>
  Copyright (c) 1998-2002 Glenn Randers-Pehrson
@@ -3644,7 +3644,7 @@
 an official declaration.
 
 This is your unofficial assurance that libpng from version 0.71 and
-upward through 1.2.3rc2 are Y2K compliant.  It is my belief that earlier
+upward through 1.2.3rc3 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
@@ -3773,7 +3773,7 @@
  1.2.2rc1            12    10202  12.so.0.1.2.2rc1
  1.0.13              10    10013  10.so.0.1.0.13
  1.2.2               12    10202  12.so.0.1.2.2
- 1.2.3rc1            12    10203  12.so.0.1.2.3rc1
+ 1.2.3rc1-3          12    10203  12.so.0.1.2.3rc1-3
 
 Henceforth the source version will match the shared-library minor
 and patch numbers; the shared-library major version number will be
@@ -3831,7 +3831,7 @@
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
 
-Libpng version 1.2.3rc2 - May 1, 2002:
+Libpng version 1.2.3rc3 - May 1, 2002:
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (randeg@alum.rpi.edu).
 
@@ -3848,7 +3848,7 @@
 If you modify libpng you may insert additional notices immediately following
 this sentence.
 
-libpng versions 1.0.7, July 1, 2000, through 1.2.3rc2, May 1, 2002, are
+libpng versions 1.0.7, July 1, 2000, through 1.2.3rc3, May 1, 2002, are
 Copyright (c) 2000-2002 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
diff --git a/libpng.txt b/libpng.txt
index e2bef87..63b2048 100644
--- a/libpng.txt
+++ b/libpng.txt
@@ -1,6 +1,6 @@
 libpng.txt - A description on how to use and modify libpng
 
- libpng version 1.2.3rc2 - May 1, 2002
+ libpng version 1.2.3rc3 - May 1, 2002
  Updated and distributed by Glenn Randers-Pehrson
  <randeg@alum.rpi.edu>
  Copyright (c) 1998-2002 Glenn Randers-Pehrson
@@ -2857,7 +2857,7 @@
 an official declaration.
 
 This is your unofficial assurance that libpng from version 0.71 and
-upward through 1.2.3rc2 are Y2K compliant.  It is my belief that earlier
+upward through 1.2.3rc3 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
diff --git a/libpngpf.3 b/libpngpf.3
index 3e22c2a..3e2f7ce 100644
--- a/libpngpf.3
+++ b/libpngpf.3
@@ -1,6 +1,6 @@
 .TH LIBPNGPF 3 "May 1, 2002"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.2.3rc2
+libpng \- Portable Network Graphics (PNG) Reference Library 1.2.3rc3
 (private functions)
 .SH SYNOPSIS
 \fB#include <png.h>\fP
diff --git a/png.c b/png.c
index cfcc98d..a7e1f2c 100644
--- a/png.c
+++ b/png.c
@@ -1,7 +1,7 @@
 
 /* png.c - location for general purpose libpng functions
  *
- * libpng version 1.2.3rc2 - May 1, 2002
+ * libpng version 1.2.3rc3 - May 1, 2002
  * Copyright (c) 1998-2002 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.)
@@ -13,14 +13,14 @@
 #include "png.h"
 
 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef version_1_2_3rc2 Your_png_h_is_not_version_1_2_3rc2;
+typedef version_1_2_3rc3 Your_png_h_is_not_version_1_2_3rc3;
 
 /* 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 */
-const char png_libpng_ver[18] = "1.2.3rc2";
+const char png_libpng_ver[18] = "1.2.3rc3";
 
 /* png_sig was changed to a function in version 1.0.5c */
 /* Place to hold the signature string for a PNG file. */
@@ -663,7 +663,7 @@
 png_get_copyright(png_structp png_ptr)
 {
    if (png_ptr != NULL || png_ptr == NULL)  /* silence compiler warning */
-   return ((png_charp) "\n libpng version 1.2.3rc2 - May 1, 2002\n\
+   return ((png_charp) "\n libpng version 1.2.3rc3 - May 1, 2002\n\
    Copyright (c) 1998-2002 Glenn Randers-Pehrson\n\
    Copyright (c) 1996-1997 Andreas Dilger\n\
    Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.\n");
@@ -681,8 +681,8 @@
 {
    /* Version of *.c files used when building libpng */
    if(png_ptr != NULL) /* silence compiler warning about unused png_ptr */
-      return((png_charp) "1.2.3rc2");
-   return((png_charp) "1.2.3rc2");
+      return((png_charp) "1.2.3rc3");
+   return((png_charp) "1.2.3rc3");
 }
 
 png_charp PNGAPI
diff --git a/png.h b/png.h
index 25c1e2f..6a58f0b 100644
--- a/png.h
+++ b/png.h
@@ -1,6 +1,6 @@
 /* png.h - header file for PNG reference library
  *
- * libpng version 1.2.3rc2 - May 1, 2002
+ * libpng version 1.2.3rc3 - May 1, 2002
  * Copyright (c) 1998-2002 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.)
@@ -8,7 +8,7 @@
  * 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 1.2.3rc2 - May 1, 2002: Glenn
+ *  libpng versions 0.97, January 1998, through 1.2.3rc3 - May 1, 2002: Glenn
  *  See also "Contributing Authors", below.
  *
  * Note about libpng version numbers:
@@ -86,7 +86,7 @@
  *    1.2.2rc1                12    10202  12.so.0.1.2.2rc1
  *    1.0.13                  10    10013  10.so.0.1.0.13
  *    1.2.2                   12    10202  12.so.0.1.2.2
- *    1.2.3rc1                12    10203  12.so.0.1.2.3rc1
+ *    1.2.3rc1-3              12    10203  12.so.0.1.2.3rc1-3
  *
  *    Henceforth the source version will match the shared-library major
  *    and minor numbers; the shared-library major version number will be
@@ -116,8 +116,8 @@
  * If you modify libpng you may insert additional notices immediately following
  * this sentence.
  *
- * libpng versions 1.0.7, July 1, 2000, through 1.2.3rc2, May 1, 2002, are
- * Copyright (c) 2000-2001 Glenn Randers-Pehrson, and are
+ * libpng versions 1.0.7, July 1, 2000, through 1.2.3rc3, May 1, 2002, are
+ * Copyright (c) 2000-2002 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
  *
@@ -227,7 +227,7 @@
  *    an official declaration.
  *
  *    This is your unofficial assurance that libpng from version 0.71 and
- *    upward through 1.2.3rc2 are Y2K compliant.  It is my belief that earlier
+ *    upward through 1.2.3rc3 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
@@ -283,7 +283,7 @@
  */
 
 /* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.2.3rc2"
+#define PNG_LIBPNG_VER_STRING "1.2.3rc3"
 
 #define PNG_LIBPNG_VER_SONUM   0
 #define PNG_LIBPNG_VER_DLLNUM  %DLLNUM%
@@ -295,7 +295,7 @@
 /* This should match the numeric part of the final component of
  * PNG_LIBPNG_VER_STRING, omitting any leading zero: */
 
-#define PNG_LIBPNG_VER_BUILD  2
+#define PNG_LIBPNG_VER_BUILD  3
 
 #define PNG_LIBPNG_BUILD_ALPHA    1
 #define PNG_LIBPNG_BUILD_BETA     2
@@ -1263,9 +1263,9 @@
 
 
 /* This prevents a compiler error in png.c if png.c and png.h are both at
-   version 1.2.3rc2
+   version 1.2.3rc3
  */
-typedef png_structp version_1_2_3rc2;
+typedef png_structp version_1_2_3rc3;
 
 typedef png_struct FAR * FAR * png_structpp;
 
@@ -1739,6 +1739,12 @@
 extern PNG_EXPORT(void,png_default_write_data) PNGARG((png_structp png_ptr,
    png_bytep data, png_size_t length));
 
+#if defined(PNG_WRITE_FLUSH_SUPPORTED)
+#if !defined(PNG_NO_STDIO)
+PNG_EXPORT(void,png_default_flush) PNGARG((png_structp png_ptr));
+#endif
+#endif
+
 /* Replace the default data input function with a user supplied one. */
 extern PNG_EXPORT(void,png_set_read_fn) PNGARG((png_structp png_ptr,
    png_voidp io_ptr, png_rw_ptr read_data_fn));
@@ -2405,7 +2411,7 @@
 /* Maintainer: Put new public prototypes here ^, in libpng.3, and project defs */
 
 #define PNG_HEADER_VERSION_STRING \
-   " libpng version 1.2.3rc2 - May 1, 2002 (header)\n"
+   " libpng version 1.2.3rc3 - May 1, 2002 (header)\n"
 
 #ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED
 /* With these routines we avoid an integer divide, which will be slower on
@@ -2712,10 +2718,8 @@
 
 #if defined(PNG_WRITE_FLUSH_SUPPORTED)
 PNG_EXTERN void png_flush PNGARG((png_structp png_ptr));
-#if !defined(PNG_NO_STDIO)
-PNG_EXTERN void png_default_flush PNGARG((png_structp png_ptr));
 #endif
-#endif
+
 
 /* Place a 32-bit number into a buffer in PNG byte order (big-endian).
  * The only currently known PNG chunks that use signed numbers are
diff --git a/pngasmrd.h b/pngasmrd.h
index a71b973..6891bad 100644
--- a/pngasmrd.h
+++ b/pngasmrd.h
@@ -1,6 +1,6 @@
 /* pngasmrd.h - assembler version of utilities to read a PNG file
  *
- * libpng 1.2.3rc2 - May 1, 2002
+ * libpng 1.2.3rc3 - May 1, 2002
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 2002 Glenn Randers-Pehrson
  *
diff --git a/pngconf.h b/pngconf.h
index 98ce2c3..82deea7 100644
--- a/pngconf.h
+++ b/pngconf.h
@@ -1,6 +1,6 @@
 /* pngconf.h - machine configurable file for libpng
  *
- * libpng 1.2.3rc2 - May 1, 2002
+ * libpng 1.2.3rc3 - May 1, 2002
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2002 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngerror.c b/pngerror.c
index bcdf0d7..5ab7cca 100644
--- a/pngerror.c
+++ b/pngerror.c
@@ -1,7 +1,7 @@
 
 /* pngerror.c - stub functions for i/o and memory allocation
  *
- * libpng 1.2.3rc2 - May 1, 2002
+ * libpng 1.2.3rc3 - May 1, 2002
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2002 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pnggccrd.c b/pnggccrd.c
index 178e698..8eff39b 100644
--- a/pnggccrd.c
+++ b/pnggccrd.c
@@ -6,7 +6,7 @@
  *     and http://www.intel.com/drg/pentiumII/appnotes/923/923.htm
  *     for Intel's performance analysis of the MMX vs. non-MMX code.
  *
- * libpng version 1.2.3rc2 - May 1, 2002
+ * libpng version 1.2.3rc3 - May 1, 2002
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2002 Glenn Randers-Pehrson
  * Copyright (c) 1998, Intel Corporation
diff --git a/pngget.c b/pngget.c
index 1eb3cd2..207730c 100644
--- a/pngget.c
+++ b/pngget.c
@@ -1,7 +1,7 @@
 
 /* pngget.c - retrieval of values from info struct
  *
- * libpng 1.2.3rc2 - May 1, 2002
+ * libpng 1.2.3rc3 - May 1, 2002
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2002 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngmem.c b/pngmem.c
index cf2c93d..1c71ca7 100644
--- a/pngmem.c
+++ b/pngmem.c
@@ -1,7 +1,7 @@
 
 /* pngmem.c - stub functions for memory allocation
  *
- * libpng 1.2.3rc2 - May 1, 2002
+ * libpng 1.2.3rc3 - May 1, 2002
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2002 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngpread.c b/pngpread.c
index 53838f3..dab4411 100644
--- a/pngpread.c
+++ b/pngpread.c
@@ -1,7 +1,7 @@
 
 /* pngpread.c - read a png file in push mode
  *
- * libpng 1.2.3rc2 - May 1, 2002
+ * libpng 1.2.3rc3 - May 1, 2002
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2002 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngread.c b/pngread.c
index 007ca2e..3d50f45 100644
--- a/pngread.c
+++ b/pngread.c
@@ -1,7 +1,7 @@
 
 /* pngread.c - read a PNG file
  *
- * libpng 1.2.3rc2 - May 1, 2002
+ * libpng 1.2.3rc3 - May 1, 2002
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2002 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -795,7 +795,7 @@
  * 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 1.2.3rc2
+ * [*] png_handle_alpha() does not exist yet, as of libpng version 1.2.3rc3
  */
 
 void PNGAPI
@@ -844,7 +844,7 @@
  * 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 1.2.3rc2
+ * [*] png_handle_alpha() does not exist yet, as of libpng version 1.2.3rc3
  */
 void PNGAPI
 png_read_image(png_structp png_ptr, png_bytepp image)
diff --git a/pngrio.c b/pngrio.c
index 6930a68..9c9e883 100644
--- a/pngrio.c
+++ b/pngrio.c
@@ -1,7 +1,7 @@
 
 /* pngrio.c - functions for data input
  *
- * libpng 1.2.3rc2 - May 1, 2002
+ * libpng 1.2.3rc3 - May 1, 2002
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2002 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngrtran.c b/pngrtran.c
index 0eae7eb..605574f 100644
--- a/pngrtran.c
+++ b/pngrtran.c
@@ -1,7 +1,7 @@
 
 /* pngrtran.c - transforms the data in a row for PNG readers
  *
- * libpng 1.2.3rc2 - May 1, 2002
+ * libpng 1.2.3rc3 - May 1, 2002
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2002 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngrutil.c b/pngrutil.c
index 1213b8e..14b8f82 100644
--- a/pngrutil.c
+++ b/pngrutil.c
@@ -1,7 +1,7 @@
 
 /* pngrutil.c - utilities to read a PNG file
  *
- * libpng 1.2.3rc2 - May 1, 2002
+ * libpng 1.2.3rc3 - May 1, 2002
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2002 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngset.c b/pngset.c
index 4d8a9fa..a7f5380 100644
--- a/pngset.c
+++ b/pngset.c
@@ -1,7 +1,7 @@
 
 /* pngset.c - storage of image information into info struct
  *
- * libpng 1.2.3rc2 - May 1, 2002
+ * libpng 1.2.3rc3 - May 1, 2002
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2002 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngtest.c b/pngtest.c
index 8259af4..2091f30 100644
--- a/pngtest.c
+++ b/pngtest.c
@@ -1,7 +1,7 @@
 
 /* pngtest.c - a simple test program to test libpng
  *
- * libpng 1.2.3rc2 - May 1, 2002
+ * libpng 1.2.3rc3 - May 1, 2002
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2002 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -1512,4 +1512,4 @@
 }
 
 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef version_1_2_3rc2 your_png_h_is_not_version_1_2_3rc2;
+typedef version_1_2_3rc3 your_png_h_is_not_version_1_2_3rc3;
diff --git a/pngtrans.c b/pngtrans.c
index 1e0efda..f933e42 100644
--- a/pngtrans.c
+++ b/pngtrans.c
@@ -1,7 +1,7 @@
 
 /* pngtrans.c - transforms the data in a row (used by both readers and writers)
  *
- * libpng 1.2.3rc2 - May 1, 2002
+ * libpng 1.2.3rc3 - May 1, 2002
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2002 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngvcrd.c b/pngvcrd.c
index 2eb05e0..21ff67d 100644
--- a/pngvcrd.c
+++ b/pngvcrd.c
@@ -2,7 +2,7 @@
  *
  * For Intel x86 CPU and Microsoft Visual C++ compiler
  *
- * libpng version 1.2.3rc2 - May 1, 2002
+ * libpng version 1.2.3rc3 - May 1, 2002
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2002 Glenn Randers-Pehrson
  * Copyright (c) 1998, Intel Corporation
diff --git a/pngwio.c b/pngwio.c
index 67e2bd8..6b28f55 100644
--- a/pngwio.c
+++ b/pngwio.c
@@ -1,7 +1,7 @@
 
 /* pngwio.c - functions for data output
  *
- * libpng 1.2.3rc2 - May 1, 2002
+ * libpng 1.2.3rc3 - May 1, 2002
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2002 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngwrite.c b/pngwrite.c
index bc84871..20a4188 100644
--- a/pngwrite.c
+++ b/pngwrite.c
@@ -1,7 +1,7 @@
 
 /* pngwrite.c - general routines to write a PNG file
  *
- * libpng 1.2.3rc2 - May 1, 2002
+ * libpng 1.2.3rc3 - May 1, 2002
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2002 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngwtran.c b/pngwtran.c
index b64047e..750250e 100644
--- a/pngwtran.c
+++ b/pngwtran.c
@@ -1,7 +1,7 @@
 
 /* pngwtran.c - transforms the data in a row for PNG writers
  *
- * libpng 1.2.3rc2 - May 1, 2002
+ * libpng 1.2.3rc3 - May 1, 2002
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2002 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngwutil.c b/pngwutil.c
index 5edf7aa..d9489bb 100644
--- a/pngwutil.c
+++ b/pngwutil.c
@@ -1,7 +1,7 @@
 
 /* pngwutil.c - utilities to write a PNG file
  *
- * libpng 1.2.3rc2 - May 1, 2002
+ * libpng 1.2.3rc3 - May 1, 2002
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2002 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/projects/msvc/README.txt b/projects/msvc/README.txt
index 689309b..a64a2b2 100644
--- a/projects/msvc/README.txt
+++ b/projects/msvc/README.txt
@@ -1,5 +1,5 @@
 Microsoft Developer Studio Build File, Format Version 6.00 for
-libpng 1.2.3rc2 (May 1, 2002) and zlib
+libpng 1.2.3rc3 (May 1, 2002) and zlib
 
 Copyright (C) 2000 Simon-Pierre Cadieux
 For conditions of distribution and use, see copyright notice in png.h
diff --git a/projects/msvc/png32ms.def b/projects/msvc/png32ms.def
index 1d784da..6223214 100644
--- a/projects/msvc/png32ms.def
+++ b/projects/msvc/png32ms.def
@@ -6,7 +6,7 @@
 DESCRIPTION "PNG image compression library for Windows"
 
 EXPORTS
-;Version 1.2.3rc2
+;Version 1.2.3rc3
   png_build_grayscale_palette  @1
   png_check_sig        @2
   png_chunk_error      @3
diff --git a/projects/netware.txt b/projects/netware.txt
index 0a6bb4a..f5c01c1 100644
--- a/projects/netware.txt
+++ b/projects/netware.txt
@@ -1,6 +1,6 @@
 A set of project files is available for Netware.  Get
-libpng-1.2.3rc2-project-netware.zip from a libpng distribution
+libpng-1.2.3rc3-project-netware.zip from a libpng distribution
 site such as http://libpng.sourceforge.net
 
 Put the zip file in this directory (projects) and then run
-"unzip -a libpng-1.2.3rc2-project-netware.zip"
+"unzip -a libpng-1.2.3rc3-project-netware.zip"
diff --git a/projects/wince.txt b/projects/wince.txt
index 9ad27f6..bc94d95 100644
--- a/projects/wince.txt
+++ b/projects/wince.txt
@@ -1,6 +1,6 @@
 A set of project files is available for WinCE.  Get
-libpng-1.2.3rc2-project-wince.zip from a libpng distribution
+libpng-1.2.3rc3-project-wince.zip from a libpng distribution
 site such as http://libpng.sourceforge.net
 
 Put the zip file in this directory (projects) and then run
-"unzip -a libpng-1.2.3rc2-project-wince.zip"
+"unzip -a libpng-1.2.3rc3-project-wince.zip"
diff --git a/scripts/libpng.pc.in b/scripts/libpng.pc.in
index ab67d45..57e9189 100644
--- a/scripts/libpng.pc.in
+++ b/scripts/libpng.pc.in
@@ -6,6 +6,6 @@
 
 Name: libpng12
 Description: Loads and saves PNG files
-Version: 1.2.3rc2
+Version: 1.2.3rc3
 Libs: -L${libdir} -lpng12
 Cflags: -I${includedir}/libpng12
diff --git a/scripts/makefile.32sunu b/scripts/makefile.32sunu
index e86a8dc..e023749 100644
--- a/scripts/makefile.32sunu
+++ b/scripts/makefile.32sunu
@@ -33,7 +33,7 @@
 
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.3rc2
+PNGMIN = 1.2.3rc3
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 INCPATH=$(prefix)/include
@@ -133,7 +133,9 @@
 	ln -f -s $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
 	ln -f -s $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
 	-@if [ ! -d $(DESTDIR)$(LIBPATH)/pkgconfig ]; then \
-	mkdir $(DESTDIR)$(LIBPATH)/pkgconfig; fi
+	mkdir $(DESTDIR)$(LIBPATH)/pkgconfig
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.12.pc
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.pc
 	cp libpng.pc $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	chmod 644 $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	(cd $(DESTDIR)$(LIBPATH)/pkgconfig; ln -f -s libpng12.pc libpng.pc)
diff --git a/scripts/makefile.64sunu b/scripts/makefile.64sunu
index 42288a0..43ec1d7 100644
--- a/scripts/makefile.64sunu
+++ b/scripts/makefile.64sunu
@@ -33,7 +33,7 @@
 
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.3rc2
+PNGMIN = 1.2.3rc3
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 INCPATH=$(prefix)/include
@@ -127,13 +127,15 @@
 	cp $(LIBNAME).so.$(PNGVER) $(DESTDIR)$(LIBPATH)
 	chmod 755 $(DESTDIR)$(LIBPATH)/$(LIBNAME).so.$(PNGVER)
 	(cd $(DESTDIR)$(LIBPATH); \
-	ln -sf $(LIBNAME).so.$(PNGVER) libpng.so; \
+	ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so; \
 	ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so.3; \
 	ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so.3.$(PNGMIN); \
 	ln -f -s $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
 	ln -f -s $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
 	-@if [ ! -d $(DESTDIR)$(LIBPATH)/pkgconfig ]; then \
 	mkdir $(DESTDIR)$(LIBPATH)/pkgconfig; fi
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.12.pc
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.pc
 	cp libpng.pc $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	chmod 644 $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	(cd $(DESTDIR)$(LIBPATH)/pkgconfig; ln -f -s libpng12.pc libpng.pc)
diff --git a/scripts/makefile.aix b/scripts/makefile.aix
index 58ca155..4cbe899 100644
--- a/scripts/makefile.aix
+++ b/scripts/makefile.aix
@@ -19,7 +19,7 @@
 # read libpng.txt or png.h to see why PNGMAJ is 0.  You should not
 # have to change it.
 PNGMAJ = 0
-PNGMIN = 1.2.3rc2
+PNGMIN = 1.2.3rc3
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 prefix=/usr/local
diff --git a/scripts/makefile.beos b/scripts/makefile.beos
index 594be28..05a49fe 100644
--- a/scripts/makefile.beos
+++ b/scripts/makefile.beos
@@ -14,7 +14,7 @@
 # read libpng.txt or png.h to see why PNGMAJ is 0.  You should not
 # have to change it.
 PNGMAJ = 0
-PNGMIN = 1.2.3rc2
+PNGMIN = 1.2.3rc3
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 ALIGN=
@@ -123,6 +123,8 @@
 	ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
 	-@if [ ! -d $(DESTDIR)$(LIBPATH)/pkgconfig ]; then \
 	mkdir $(DESTDIR)$(LIBPATH)/pkgconfig; fi
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.12.pc
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.pc
 	cp libpng.pc $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	chmod 644 $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	(cd $(DESTDIR)$(LIBPATH)/pkgconfig; ln -sf libpng12.pc libpng.pc)
diff --git a/scripts/makefile.cygwin b/scripts/makefile.cygwin
index a52329e..2a3dbee 100644
--- a/scripts/makefile.cygwin
+++ b/scripts/makefile.cygwin
@@ -52,7 +52,7 @@
 LIBNAME=libpng12
 PNGMAJ = 0
 PNGDLL = 12
-PNGMIN = 1.2.3rc2
+PNGMIN = 1.2.3rc3
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 SHAREDLIB=cygpng$(PNGDLL).dll
@@ -162,6 +162,8 @@
 	-@if [ ! -d $(DESTDIR)$(BINPATH) ]; then mkdir -p $(DESTDIR)$(BINPATH); fi
 	-@if [ ! -d $(DESTDIR)$(LIBPATH)/pkgconfig ]; then \
 	mkdir -p $(DESTDIR)$(LIBPATH)/pkgconfig; fi
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.12.pc
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.pc
 	install -m 644 $(IMPLIB) $(DESTDIR)$(LIBPATH)/$(LIBNAME).dll.a
 	-@rm -f $(DESTDIR)$(LIBPATH)/$(IMPLIB)
 	(cd $(DESTDIR)$(LIBPATH); ln -sf $(LIBNAME).dll.a $(IMPLIB))
diff --git a/scripts/makefile.darwin b/scripts/makefile.darwin
index b15eafa..9616064 100644
--- a/scripts/makefile.darwin
+++ b/scripts/makefile.darwin
@@ -25,7 +25,7 @@
 # read libpng.txt or png.h to see why PNGMAJ is 0.  You should not
 # have to change it.
 PNGMAJ = 0
-PNGMIN = 1.2.3rc2
+PNGMIN = 1.2.3rc3
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng12
 
@@ -115,6 +115,8 @@
 	ln -sf $(LIBNAME).$(PNGMAJ).dylib $(LIBNAME).dylib)
 	-@if [ ! -d $(DESTDIR)$(LIBPATH)/pkgconfig ]; then \
 	mkdir $(DESTDIR)$(LIBPATH)/pkgconfig; fi
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.12.pc
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.pc
 	cp libpng.pc $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	chmod 644 $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	(cd $(DESTDIR)$(LIBPATH)/pkgconfig; ln -sf libpng12.pc libpng.pc)
diff --git a/scripts/makefile.dec b/scripts/makefile.dec
index cc19e9a..753e239 100644
--- a/scripts/makefile.dec
+++ b/scripts/makefile.dec
@@ -28,7 +28,7 @@
 # read libpng.txt or png.h to see why PNGMAJ is 0.  You should not
 # have to change it.
 PNGMAJ = 0
-PNGMIN = 1.2.3rc2
+PNGMIN = 1.2.3rc3
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng12
 
@@ -102,6 +102,8 @@
 	ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
 	-@if [ ! -d $(DESTDIR)$(LIBPATH)/pkgconfig ]; then \
 	mkdir $(DESTDIR)$(LIBPATH)/pkgconfig; fi
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.12.pc
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.pc
 	cp libpng.pc $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	chmod 644 $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	(cd $(DESTDIR)$(LIBPATH)/pkgconfig; ln -sf libpng12.pc libpng.pc)
diff --git a/scripts/makefile.gcmmx b/scripts/makefile.gcmmx
index 963a43a..63f5845 100644
--- a/scripts/makefile.gcmmx
+++ b/scripts/makefile.gcmmx
@@ -15,7 +15,7 @@
 
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.3rc2
+PNGMIN = 1.2.3rc3
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 CC=gcc
@@ -161,6 +161,8 @@
 	ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
 	-@if [ ! -d $(DESTDIR)$(LIBPATH)/pkgconfig ]; then \
 	mkdir $(DESTDIR)$(LIBPATH)/pkgconfig; fi
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.12.pc
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.pc
 	cp libpng.pc $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	chmod 644 $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	(cd $(DESTDIR)$(LIBPATH)/pkgconfig; ln -sf libpng12.pc libpng.pc)
diff --git a/scripts/makefile.hpgcc b/scripts/makefile.hpgcc
index 0ec23cd..eac0677 100644
--- a/scripts/makefile.hpgcc
+++ b/scripts/makefile.hpgcc
@@ -35,7 +35,7 @@
 # read libpng.txt or png.h to see why PNGMAJ is 0.  You should not
 # have to change it.
 PNGMAJ = 0
-PNGMIN = 1.2.3rc2
+PNGMIN = 1.2.3rc3
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng12
 
@@ -126,6 +126,8 @@
 	ln -sf $(LIBNAME).sl.$(PNGMAJ) $(LIBNAME).sl)
 	-@if [ ! -d $(DESTDIR)$(LIBPATH)/pkgconfig ]; then mkdir \
 	$(DESTDIR)$(LIBPATH)/pkgconfig; fi
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.12.pc
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.pc
 	cp libpng.pc $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	chmod 644 $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	(cd $(DESTDIR)$(LIBPATH)/pkgconfig; ln -sf libpng12.pc libpng.pc)
diff --git a/scripts/makefile.hpux b/scripts/makefile.hpux
index 0b0534b..db19154 100644
--- a/scripts/makefile.hpux
+++ b/scripts/makefile.hpux
@@ -19,7 +19,7 @@
 # read libpng.txt or png.h to see why PNGMAJ is 0.  You should not
 # have to change it.
 PNGMAJ = 0
-PNGMIN = 1.2.3rc2
+PNGMIN = 1.2.3rc3
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng12
 
@@ -111,6 +111,8 @@
 	ln -sf $(LIBNAME).sl.$(PNGMAJ) $(LIBNAME).sl)
 	-@if [ ! -d $(DESTDIR)$(LIBPATH)/pkgconfig ]; then \
 	mkdir $(DESTDIR)$(LIBPATH)/pkgconfig; fi
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.12.pc
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.pc
 	cp libpng.pc $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	chmod 644 $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	(cd $(DESTDIR)$(LIBPATH)/pkgconfig; ln -sf libpng12.pc libpng.pc)
diff --git a/scripts/makefile.linux b/scripts/makefile.linux
index 8480888..285a03a 100644
--- a/scripts/makefile.linux
+++ b/scripts/makefile.linux
@@ -5,7 +5,7 @@
 
 LIBNAME = libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.3rc2
+PNGMIN = 1.2.3rc3
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 CC=gcc
@@ -135,6 +135,8 @@
 	ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
 	-@if [ ! -d $(DESTDIR)$(LIBPATH)/pkgconfig ]; then mkdir \
 	$(DESTDIR)$(LIBPATH)/pkgconfig; fi
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.12.pc
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.pc
 	cp libpng.pc $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	chmod 644 $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	(cd $(DESTDIR)$(LIBPATH)/pkgconfig; ln -sf libpng12.pc libpng.pc)
diff --git a/scripts/makefile.macosx b/scripts/makefile.macosx
index 8bd87d2..a2ce055 100644
--- a/scripts/makefile.macosx
+++ b/scripts/makefile.macosx
@@ -17,7 +17,7 @@
 CC=cc
 
 PNGMAJ = 0
-PNGMIN = 1.2.3rc2
+PNGMIN = 1.2.3rc3
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 CFLAGS=-fno-common -I$(ZLIBINC) -O # -g -DPNG_DEBUG=5
@@ -105,15 +105,17 @@
 	libpng.3.$(SHARED_POSTFIX); \
 	ln -f -s $(LIBNAME).$(PNGVER).$(SHARED_POSTFIX) \
 	libpng.3.$(PNGMIN).$(SHARED_POSTFIX); \
-	ln -sf $(LIBNAME).$(PNGVER).$(SHAREDLIB_POSTFIX) \
+	ln -f -s $(LIBNAME).$(PNGVER).$(SHAREDLIB_POSTFIX) \
 	$(LIBNAME).$(PNGMAJ).$(SHAREDLIB_POSTFIX); \
-	ln -sf $(LIBNAME).$(PNGMAJ).$(SHAREDLIB_POSTFIX) \
+	ln -f -s $(LIBNAME).$(PNGMAJ).$(SHAREDLIB_POSTFIX) \
 	$(LIBNAME).$(SHAREDLIB_POSTFIX))
 	-@if [ ! -d $(DESTDIR)$(LIBPATH)/pkgconfig ]; then \
 	mkdir $(DESTDIR)$(LIBPATH)/pkgconfig; fi
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.12.pc
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.pc
 	cp libpng.pc $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	chmod 644 $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
-	(cd $(DESTDIR)$(LIBPATH)/pkgconfig; ln -sf libpng12.pc libpng.pc)
+	(cd $(DESTDIR)$(LIBPATH)/pkgconfig; ln -f -s libpng12.pc libpng.pc)
 
 install-man: libpng.3 libpngpf.3 png.5
 	-@if [ ! -d $(MANPATH) ]; then mkdir $(MANPATH); fi
diff --git a/scripts/makefile.ne12bsd b/scripts/makefile.ne12bsd
index f901d46..f6dac30 100644
--- a/scripts/makefile.ne12bsd
+++ b/scripts/makefile.ne12bsd
@@ -13,7 +13,7 @@
 
 LIB=	png12
 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.2.3rc2
+SHLIB_MINOR=	1.2.3rc3
 SRCS=	pnggccrd.c png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
 		pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
 		pngwtran.c pngmem.c pngerror.c pngpread.c
diff --git a/scripts/makefile.netbsd b/scripts/makefile.netbsd
index be41cd7..151f11c 100644
--- a/scripts/makefile.netbsd
+++ b/scripts/makefile.netbsd
@@ -13,7 +13,7 @@
 
 LIB=	png
 SHLIB_MAJOR=	3
-SHLIB_MINOR=	1.2.3rc2
+SHLIB_MINOR=	1.2.3rc3
 SRCS=	pnggccrd.c png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
 		pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
 		pngwtran.c pngmem.c pngerror.c pngpread.c
diff --git a/scripts/makefile.openbsd b/scripts/makefile.openbsd
index ddfb415..829c13c 100644
--- a/scripts/makefile.openbsd
+++ b/scripts/makefile.openbsd
@@ -7,7 +7,7 @@
 MANDIR= ${PREFIX}/man/cat
 
 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.2.3rc2
+SHLIB_MINOR=	1.2.3rc3
 
 LIB=	png
 SRCS=	png.c pngerror.c pnggccrd.c pngget.c pngmem.c pngpread.c \
diff --git a/scripts/makefile.sco b/scripts/makefile.sco
index d1e971b..f897bc1 100644
--- a/scripts/makefile.sco
+++ b/scripts/makefile.sco
@@ -26,7 +26,7 @@
 # read libpng.txt or png.h to see why PNGMAJ is 0.  You should not
 # have to change it.
 PNGMAJ = 0
-PNGMIN = 1.2.3rc2
+PNGMIN = 1.2.3rc3
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng12
 
@@ -119,6 +119,8 @@
 	ln -f -s $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
 	-@if [ ! -d $(DESTDIR)$(LIBPATH)/pkgconfig ]; then \
 	mkdir $(DESTDIR)$(LIBPATH)/pkgconfig; fi
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.12.pc
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.pc
 	cp libpng.pc $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	chmod 644 $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	(cd $(DESTDIR)$(LIBPATH)/pkgconfig; ln -f -s libpng12.pc libpng.pc)
diff --git a/scripts/makefile.sggcc b/scripts/makefile.sggcc
index b427b6c..96a0f34 100644
--- a/scripts/makefile.sggcc
+++ b/scripts/makefile.sggcc
@@ -36,7 +36,7 @@
 LDSHARED=CC $(ABI) -shared
 
 PNGMAJ = 0
-PNGMIN = 1.2.3rc2
+PNGMIN = 1.2.3rc3
 PNGVER = $(PNGMAJ).$(PNGMIN)
 # See "man dso" for info about shared objects
 LIBS=libpng12.so.$(PNGVER)
@@ -74,8 +74,8 @@
 $(LIBNAME).so.$(PNGVER): $(OBJS)
 	$(LDSHARED) -o $@ $(OBJS)
 	rm -f $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)
-	ln -s $@ $(LIBNAME).so
-	ln -s $@ $(LIBNAME).so.$(PNGMAJ)
+	ln -s -f $@ $(LIBNAME).so
+	ln -s -f $@ $(LIBNAME).so.$(PNGMAJ)
 
 pngtest: pngtest.o libpng.a
 	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
@@ -93,15 +93,15 @@
 	$(DESTDIR)$(INCPATH)/$(LIBNAME)/pngconf.h
 	-@/bin/rm -f $(DESTDIR)$(INCPATH)/png.h $(DESTDIR)$(INCPATH)/pngconf.h
 	-@/bin/rm -f $(DESTDIR)$(INCPATH)/libpng
-	(cd $(DESTDIR)$(INCPATH); ln -f -s $(LIBNAME) libpng; \
-	ln -f -s $(LIBNAME)/* .)
+	(cd $(DESTDIR)$(INCPATH); ln -sf $(LIBNAME) libpng; \
+	ln -sf $(LIBNAME)/* .)
 
 install-static: install-headers libpng.a
 	-@if [ ! -d $(DESTDIR)$(LIBPATH) ]; then mkdir $(DESTDIR)$(LIBPATH); fi
 	cp libpng.a $(DESTDIR)$(LIBPATH)/$(LIBNAME).a
 	chmod 644 $(DESTDIR)$(LIBPATH)/$(LIBNAME).a
 	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/libpng.a
-	(cd $(DESTDIR)$(LIBPATH); ln -f -s $(LIBNAME).a libpng.a)
+	(cd $(DESTDIR)$(LIBPATH); ln -sf $(LIBNAME).a libpng.a)
 
 install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc
 	-@if [ ! -d $(DESTDIR)$(LIBPATH) ]; then mkdir $(DESTDIR)$(LIBPATH); fi
@@ -113,16 +113,18 @@
 	cp $(LIBNAME).so.$(PNGVER) $(DESTDIR)$(LIBPATH)
 	chmod 755 $(DESTDIR)$(LIBPATH)/$(LIBNAME).so.$(PNGVER)
 	(cd $(DESTDIR)$(LIBPATH); \
-	ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so; \
-	ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so.3; \
-	ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so.3.$(PNGMIN); \
-	ln -f -s $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
-	ln -f -s $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
+	ln -sf $(LIBNAME).so.$(PNGVER) libpng.so; \
+	ln -sf $(LIBNAME).so.$(PNGVER) libpng.so.3; \
+	ln -sf $(LIBNAME).so.$(PNGVER) libpng.so.3.$(PNGMIN); \
+	ln -sf $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
+	ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
 	-@if [ ! -d $(DESTDIR)$(LIBPATH)/pkgconfig ]; then \
 	mkdir $(DESTDIR)$(LIBPATH)/pkgconfig; fi
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.12.pc
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.pc
 	cp libpng.pc $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	chmod 644 $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
-	(cd $(DESTDIR)$(LIBPATH)/pkgconfig; ln -f -s libpng12.pc libpng.pc)
+	(cd $(DESTDIR)$(LIBPATH)/pkgconfig; ln -sf libpng12.pc libpng.pc)
 
 install-man: libpng.3 libpngpf.3 png.5
 	-@if [ ! -d $(MANPATH) ]; then mkdir $(MANPATH); fi
diff --git a/scripts/makefile.sgi b/scripts/makefile.sgi
index 1801e77..1f1fbd9 100644
--- a/scripts/makefile.sgi
+++ b/scripts/makefile.sgi
@@ -31,7 +31,7 @@
 # See "man dso" for info about shared objects
 LIBNAME=libpng12
 PNGMAJ = 0
-PNGMIN = 1.2.3rc2
+PNGMIN = 1.2.3rc3
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 RANLIB=echo
@@ -70,8 +70,8 @@
 $(LIBNAME).so.$(PNGVER): $(OBJS)
 	$(LDSHARED) -o $@ $(OBJS)
 	rm -f $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)
-	ln -s $@ $(LIBNAME).so
-	ln -s $@ $(LIBNAME).so.$(PNGMAJ)
+	ln -s -f $@ $(LIBNAME).so
+	ln -s -f $@ $(LIBNAME).so.$(PNGMAJ)
 
 pngtest: pngtest.o libpng.a
 	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
@@ -88,15 +88,15 @@
 	$(DESTDIR)$(INCPATH)/$(LIBNAME)/pngconf.h
 	-@/bin/rm -f $(DESTDIR)$(INCPATH)/png.h $(DESTDIR)$(INCPATH)/pngconf.h
 	-@/bin/rm -f $(DESTDIR)$(INCPATH)/libpng
-	(cd $(DESTDIR)$(INCPATH); ln -f -s $(LIBNAME) libpng; \
-	ln -f -s $(LIBNAME)/* .)
+	(cd $(DESTDIR)$(INCPATH); ln -sf $(LIBNAME) libpng; \
+	ln -sf $(LIBNAME)/* .)
 
 install-static: install-headers libpng.a
 	-@if [ ! -d $(DESTDIR)$(LIBPATH) ]; then mkdir $(DESTDIR)$(LIBPATH); fi
 	cp libpng.a $(DESTDIR)$(LIBPATH)/$(LIBNAME).a
 	chmod 644 $(DESTDIR)$(LIBPATH)/$(LIBNAME).a
 	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/libpng.a
-	(cd $(DESTDIR)$(LIBPATH); ln -f -s $(LIBNAME).a libpng.a)
+	(cd $(DESTDIR)$(LIBPATH); ln -sf $(LIBNAME).a libpng.a)
 
 install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc
 	-@if [ ! -d $(DESTDIR)$(LIBPATH) ]; then mkdir $(DESTDIR)$(LIBPATH); fi
@@ -108,16 +108,18 @@
 	cp $(LIBNAME).so.$(PNGVER) $(DESTDIR)$(LIBPATH)
 	chmod 755 $(DESTDIR)$(LIBPATH)/$(LIBNAME).so.$(PNGVER)
 	(cd $(DESTDIR)$(LIBPATH); \
-	ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so; \
-	ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so.3; \
-	ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so.3.$(PNGMIN); \
-	ln -f -s $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
-	ln -f -s $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
+	ln -sf $(LIBNAME).so.$(PNGVER) libpng.so; \
+	ln -sf $(LIBNAME).so.$(PNGVER) libpng.so.3; \
+	ln -sf $(LIBNAME).so.$(PNGVER) libpng.so.3.$(PNGMIN); \
+	ln -sf $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
+	ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
 	-@if [ ! -d $(DESTDIR)$(LIBPATH)/pkgconfig ]; then \
 	mkdir $(DESTDIR)$(LIBPATH)/pkgconfig; fi
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.12.pc
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.pc
 	cp libpng.pc $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	chmod 644 $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
-	(cd $(DESTDIR)$(LIBPATH)/pkgconfig; ln -f -s libpng12.pc libpng.pc)
+	(cd $(DESTDIR)$(LIBPATH)/pkgconfig; ln -sf libpng12.pc libpng.pc)
 
 install-man: libpng.3 libpngpf.3 png.5
 	-@if [ ! -d $(MANPATH) ]; then mkdir $(MANPATH); fi
diff --git a/scripts/makefile.so9 b/scripts/makefile.so9
index bef6988..f97788e 100644
--- a/scripts/makefile.so9
+++ b/scripts/makefile.so9
@@ -36,7 +36,7 @@
 # read libpng.txt or png.h to see why PNGMAJ is 0.  You should not
 # have to change it.
 PNGMAJ = 0
-PNGMIN = 1.2.3rc2
+PNGMIN = 1.2.3rc3
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng12
 
@@ -138,6 +138,8 @@
 	ln -f -s $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
 	-@if [ ! -d $(DESTDIR)$(LIBPATH)/pkgconfig ]; then mkdir \
 	$(DESTDIR)$(LIBPATH)/pkgconfig; fi
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.12.pc
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.pc
 	cp libpng.pc $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	chmod 644 $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	(cd $(DESTDIR)$(LIBPATH)/pkgconfig; ln -f -s libpng12.pc libpng.pc)
diff --git a/scripts/makefile.solaris b/scripts/makefile.solaris
index 9ed0876..88b4247 100644
--- a/scripts/makefile.solaris
+++ b/scripts/makefile.solaris
@@ -32,7 +32,7 @@
 # read libpng.txt or png.h to see why PNGMAJ is 0.  You should not
 # have to change it.
 PNGMAJ = 0
-PNGMIN = 1.2.3rc2
+PNGMIN = 1.2.3rc3
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng12
 
@@ -134,6 +134,8 @@
 	ln -f -s $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ))
 	-@if [ ! -d $(DESTDIR)$(LIBPATH)/pkgconfig ]; then \
 	mkdir $(DESTDIR)$(LIBPATH)/pkgconfig; fi
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.12.pc
+	-@/bin/rm -f $(DESTDIR)$(LIBPATH)/pkgconfig/libpng.pc
 	cp libpng.pc $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	chmod 644 $(DESTDIR)$(LIBPATH)/pkgconfig/libpng12.pc
 	(cd $(DESTDIR)$(LIBPATH)/pkgconfig; ln -f -s libpng12.pc libpng.pc)
diff --git a/scripts/pngdef.pas b/scripts/pngdef.pas
index d86b2af..7851a0e 100644
--- a/scripts/pngdef.pas
+++ b/scripts/pngdef.pas
@@ -7,7 +7,7 @@
 interface
 
 const
-  PNG_LIBPNG_VER_STRING = '1.2.3rc2';
+  PNG_LIBPNG_VER_STRING = '1.2.3rc3';
   PNG_LIBPNG_VER        =  10203;
 
 type
diff --git a/scripts/pngos2.def b/scripts/pngos2.def
index 3ce9bfa..b2a29d6 100644
--- a/scripts/pngos2.def
+++ b/scripts/pngos2.def
@@ -2,7 +2,7 @@
 ; PNG.LIB module definition file for OS/2
 ;----------------------------------------
 
-; Version 1.2.3rc2
+; Version 1.2.3rc3
 
 LIBRARY		PNG
 DESCRIPTION	"PNG image compression library for OS/2"