diff --git a/ANNOUNCE b/ANNOUNCE
index f99c12f..bf9c2ed 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -1,5 +1,5 @@
 
-Libpng 1.0.38rc02 - July 21, 2008
+Libpng 1.0.38rc03 - July 21, 2008
 
 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.
@@ -9,37 +9,37 @@
 Source files with LF line endings (for Unix/Linux) and with a
 "configure" script
 
-   libpng-1.0.38rc02.tar.gz
-   libpng-1.0.38rc02.tar.lzma
+   libpng-1.0.38rc03.tar.gz
+   libpng-1.0.38rc03.tar.lzma
      (Get the lzma codec from <http://tukaani.org/lzma>).
-   libpng-1.0.38rc02.tar.bz2
+   libpng-1.0.38rc03.tar.bz2
 
 Source files with LF line endings (for Unix/Linux) without the
 "configure" script
 
-   libpng-1.0.38rc02-no-config.tar.gz
-   libpng-1.0.38rc02-no-config.tar.lzma
-   libpng-1.0.38rc02-no-config.tar.bz2
+   libpng-1.0.38rc03-no-config.tar.gz
+   libpng-1.0.38rc03-no-config.tar.lzma
+   libpng-1.0.38rc03-no-config.tar.bz2
 
 Source files with CRLF line endings (for Windows), without the
 "configure" script
 
-   lp1038r02.zip
-   lp1038r02.7z
-   lp1038r02.tar.bz2
+   lp1038r03.zip
+   lp1038r03.7z
+   lp1038r03.tar.bz2
 
 Project files
 
-   libpng-1.0.38rc02-project-netware.zip
-   libpng-1.0.38rc02-project-wince.zip
+   libpng-1.0.38rc03-project-netware.zip
+   libpng-1.0.38rc03-project-wince.zip
 
 Other information:
 
-   libpng-1.0.38rc02-README.txt
-   libpng-1.0.38rc02-KNOWNBUGS.txt
-   libpng-1.0.38rc02-LICENSE.txt
-   libpng-1.0.38rc02-Y2K-compliance.txt
-   libpng-1.0.38rc02-[previous version]-diff.txt
+   libpng-1.0.38rc03-README.txt
+   libpng-1.0.38rc03-KNOWNBUGS.txt
+   libpng-1.0.38rc03-LICENSE.txt
+   libpng-1.0.38rc03-Y2K-compliance.txt
+   libpng-1.0.38rc03-[previous version]-diff.txt
 
 Changes since the last public release (1.0.37):
 
@@ -92,6 +92,8 @@
   Moved local array "chunkdata" from pngrutil.c to the png_struct, so
     it will be freed by png_read_destroy() in case of a read error.
 
+version 1.0.38rc03, 1.2.30rc03 [July 21, 2008]
+  Change "purpose" and "buffer" to png_ptr->chunkdata to avoid memory leaking.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 
diff --git a/CHANGES b/CHANGES
index c1e5585..c1694e1 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2182,6 +2182,9 @@
   Moved local array "chunkdata" from pngrutil.c to the png_struct, so
     it will be freed by png_read_destroy() in case of a read error.
 
+version 1.0.38rc03, 1.2.30rc03 [July 21, 2008]
+  Change "purpose" and "buffer" to png_ptr->chunkdata to avoid memory leaking.
+
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit
 https://lists.sourceforge.net/lists/listinfo/png-mng-implement
diff --git a/INSTALL b/INSTALL
index 412b22e..4197684 100644
--- a/INSTALL
+++ b/INSTALL
@@ -1,5 +1,5 @@
 
-Installing libpng version 1.0.38rc02 - July 21, 2008
+Installing libpng version 1.0.38rc03 - July 21, 2008
 
 On Unix/Linux and similar systems, you can simply type
 
@@ -44,7 +44,7 @@
 correspond to the version of zlib that's installed.
 
 You can rename the directories that you downloaded (they
-might be called "libpng-1.0.38rc02" or "lpng109" and "zlib-1.2.1"
+might be called "libpng-1.0.38rc03" or "lpng109" and "zlib-1.2.1"
 or "zlib121") so that you have directories called "zlib" and "libpng".
 
 Your directory structure should look like this:
@@ -101,9 +101,9 @@
  CMakeLists.txt    =>  "cmake" script
  makefile.std      =>  Generic UNIX makefile (cc, creates static libpng.a)
  makefile.elf      =>  Linux/ELF makefile symbol versioning,
-                       gcc, creates libpng10.so.0.1.0.38rc02)
+                       gcc, creates libpng10.so.0.1.0.38rc03)
  makefile.linux    =>  Linux/ELF makefile
-                       (gcc, creates libpng10.so.0.1.0.38rc02)
+                       (gcc, creates libpng10.so.0.1.0.38rc03)
  makefile.gcc      =>  Generic makefile (gcc, creates static libpng.a)
  makefile.knr      =>  Archaic UNIX Makefile that converts files with
                        ansi2knr (Requires ansi2knr.c from
@@ -125,14 +125,14 @@
  makefile.openbsd  =>  OpenBSD makefile
  makefile.sgi      =>  Silicon Graphics IRIX makefile (cc, creates static lib)
  makefile.sggcc    =>  Silicon Graphics (gcc,
-                       creates libpng10.so.0.1.0.38rc02)
+                       creates libpng10.so.0.1.0.38rc03)
  makefile.sunos    =>  Sun makefile
  makefile.solaris  =>  Solaris 2.X makefile (gcc,
-                       creates libpng10.so.0.1.0.38rc02)
+                       creates libpng10.so.0.1.0.38rc03)
  makefile.solaris-x86 =>  Solaris/intelMMX 2.X makefile (gcc,
-                       creates libpng10.so.0.1.0.38rc02)
+                       creates libpng10.so.0.1.0.38rc03)
  makefile.so9      =>  Solaris 9 makefile (gcc,
-                       creates libpng10.so.0.1.0.38rc02)
+                       creates libpng10.so.0.1.0.38rc03)
  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 e6fd4e1..f99e34d 100644
--- a/KNOWNBUG
+++ b/KNOWNBUG
@@ -1,5 +1,5 @@
 
-Known bugs in libpng version 1.0.38rc02
+Known bugs in libpng version 1.0.38rc03
 
 1. February 23, 2006: The custom makefiles don't build libpng with -lz.
 
diff --git a/LICENSE b/LICENSE
index c22b4bb..b269f71 100644
--- a/LICENSE
+++ b/LICENSE
@@ -8,7 +8,7 @@
 If you modify libpng you may insert additional notices immediately following
 this sentence.
 
-libpng versions 1.2.6, August 15, 2004, through 1.0.38rc02, July 21, 2008, are
+libpng versions 1.2.6, August 15, 2004, through 1.0.38rc03, July 21, 2008, are
 Copyright (c) 2004, 2006-2008 Glenn Randers-Pehrson, and are
 distributed according to the same disclaimer and license as libpng-1.2.5
 with the following individual added to the list of Contributing Authors
diff --git a/Makefile.am b/Makefile.am
index 7aa4c95..be58656 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -86,7 +86,7 @@
 	${srcdir}/contrib/pngsuite/* \
 	${srcdir}/contrib/visupng/* \
 	$(TESTS) \
-	example.c libpng-1.0.38rc02.txt pngvcrd.c 
+	example.c libpng-1.0.38rc03.txt pngvcrd.c 
 
 CLEANFILES= pngout.png libpng10.pc libpng10-config libpng.vers \
 libpng.sym
diff --git a/Makefile.in b/Makefile.in
index 657ee8e..d46e407 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -331,7 +331,7 @@
 	${srcdir}/contrib/pngsuite/* \
 	${srcdir}/contrib/visupng/* \
 	$(TESTS) \
-	example.c libpng-1.0.38rc02.txt pngvcrd.c 
+	example.c libpng-1.0.38rc03.txt pngvcrd.c 
 
 CLEANFILES = pngout.png libpng10.pc libpng10-config libpng.vers \
 libpng.sym
diff --git a/README b/README
index 00aa497..c7c69aa 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README for libpng version 1.0.38rc02 - July 21, 2008 (shared library 10.0)
+README for libpng version 1.0.38rc03 - July 21, 2008 (shared library 10.0)
 See the note about version numbers near the top of png.h
 
 See INSTALL for instructions on how to install libpng.
@@ -194,11 +194,11 @@
        descrip.mms      =>  VMS makefile for MMS or MMK
        makefile.std     =>  Generic UNIX makefile (cc, creates static libpng.a)
        makefile.elf     =>  Linux/ELF makefile symbol versioning,
-                            gcc, creates libpng10.so.0.1.0.38rc02)
+                            gcc, creates libpng10.so.0.1.0.38rc03)
        makefile.linux   =>  Linux/ELF makefile
-                            (gcc, creates libpng10.so.0.1.0.38rc02)
+                            (gcc, creates libpng10.so.0.1.0.38rc03)
        makefile.gcmmx   =>  Linux/ELF makefile
-                            (gcc, creates libpng10.so.0.1.0.38rc02,
+                            (gcc, creates libpng10.so.0.1.0.38rc03,
                             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
@@ -220,12 +220,12 @@
        makefile.openbsd =>  OpenBSD makefile
        makefile.sgi     =>  Silicon Graphics IRIX (cc, creates static lib)
        makefile.sggcc   =>  Silicon Graphics
-                            (gcc, creates libpng10.so.0.1.0.38rc02)
+                            (gcc, creates libpng10.so.0.1.0.38rc03)
        makefile.sunos   =>  Sun makefile
        makefile.solaris =>  Solaris 2.X makefile
-                            (gcc, creates libpng10.so.0.1.0.38rc02)
+                            (gcc, creates libpng10.so.0.1.0.38rc03)
        makefile.so9     =>  Solaris 9 makefile
-                            (gcc, creates libpng10.so.0.1.0.38rc02)
+                            (gcc, creates libpng10.so.0.1.0.38rc03)
        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 f55d8b5..c0ccbb5 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 1.0.38rc02 are Y2K compliant.  It is my belief that earlier
+      upward through 1.0.38rc03 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 a3700ab..9df3b98 100755
--- a/configure
+++ b/configure
Binary files differ
diff --git a/configure.ac b/configure.ac
index 71e1001..13053c6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,12 +18,12 @@
 
 dnl Version number stuff here:
 
-AC_INIT([libpng], [1.0.38rc02], [png-mng-implement@lists.sourceforge.net])
+AC_INIT([libpng], [1.0.38rc03], [png-mng-implement@lists.sourceforge.net])
 AM_INIT_AUTOMAKE
 dnl stop configure from automagically running automake
 AM_MAINTAINER_MODE
 
-PNGLIB_VERSION=1.0.38rc02
+PNGLIB_VERSION=1.0.38rc03
 PNGLIB_MAJOR=1
 PNGLIB_MINOR=0
 PNGLIB_RELEASE=38
diff --git a/libpng-1.0.38rc02.txt b/libpng-1.0.38rc03.txt
similarity index 99%
rename from libpng-1.0.38rc02.txt
rename to libpng-1.0.38rc03.txt
index 1105feb..32fc189 100644
--- a/libpng-1.0.38rc02.txt
+++ b/libpng-1.0.38rc03.txt
@@ -1,6 +1,6 @@
 libpng.txt - A description on how to use and modify libpng
 
- libpng version 1.0.38rc02 - July 21, 2008
+ libpng version 1.0.38rc03 - July 21, 2008
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2008 Glenn Randers-Pehrson
@@ -9,7 +9,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.0.38rc02 - July 21, 2008
+ libpng versions 0.97, January 1998, through 1.0.38rc03 - July 21, 2008
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2008 Glenn Randers-Pehrson
 
@@ -2821,7 +2821,7 @@
 an official declaration.
 
 This is your unofficial assurance that libpng from version 0.71 and
-upward through 1.0.38rc02 are Y2K compliant.  It is my belief that earlier
+upward through 1.0.38rc03 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/libpng.3 b/libpng.3
index fb23cc4..d6017cb 100644
--- a/libpng.3
+++ b/libpng.3
@@ -1,6 +1,6 @@
 .TH LIBPNG 3 "July 21, 2008"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.0.38rc02
+libpng \- Portable Network Graphics (PNG) Reference Library 1.0.38rc03
 .SH SYNOPSIS
 \fI\fB
 
@@ -821,7 +821,7 @@
 .SH LIBPNG.TXT
 libpng.txt - A description on how to use and modify libpng
 
- libpng version 1.0.38rc02 - July 21, 2008
+ libpng version 1.0.38rc03 - July 21, 2008
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2008 Glenn Randers-Pehrson
@@ -830,7 +830,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.0.38rc02 - July 21, 2008
+ libpng versions 0.97, January 1998, through 1.0.38rc03 - July 21, 2008
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2008 Glenn Randers-Pehrson
 
@@ -3642,7 +3642,7 @@
 an official declaration.
 
 This is your unofficial assurance that libpng from version 0.71 and
-upward through 1.0.38rc02 are Y2K compliant.  It is my belief that earlier
+upward through 1.0.38rc03 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
@@ -3876,8 +3876,8 @@
  1.2.29              13    10229  12.so.0.29[.0]
  1.0.37              10    10037  10.so.0.37[.0]
  1.2.30beta01-04     13    10230  12.so.0.30[.0]
- 1.0.38rc01          10    10038  10.so.0.38[.0]
- 1.2.30rc01          13    10230  12.so.0.30[.0]
+ 1.0.38rc01-03       10    10038  10.so.0.38[.0]
+ 1.2.30rc01-03       13    10230  12.so.0.30[.0]
 
 Henceforth the source version will match the shared-library minor
 and patch numbers; the shared-library major version number will be
@@ -3933,7 +3933,7 @@
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
 
-Libpng version 1.0.38rc02 - July 21, 2008:
+Libpng version 1.0.38rc03 - July 21, 2008:
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
 
@@ -3954,7 +3954,7 @@
 If you modify libpng you may insert additional notices immediately following
 this sentence.
 
-libpng versions 1.2.6, August 15, 2004, through 1.0.38rc02, July 21, 2008, are
+libpng versions 1.2.6, August 15, 2004, through 1.0.38rc03, July 21, 2008, are
 Copyright (c) 2004,2006-2008 Glenn Randers-Pehrson, and are
 distributed according to the same disclaimer and license as libpng-1.2.5
 with the following individual added to the list of Contributing Authors
diff --git a/libpngpf.3 b/libpngpf.3
index d713050..345470d 100644
--- a/libpngpf.3
+++ b/libpngpf.3
@@ -1,6 +1,6 @@
 .TH LIBPNGPF 3 "July 21, 2008"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.0.38rc02
+libpng \- Portable Network Graphics (PNG) Reference Library 1.0.38rc03
 (private functions)
 .SH SYNOPSIS
 \fB#include <png.h>\fP
diff --git a/png.c b/png.c
index b5eccd4..65a1350 100644
--- a/png.c
+++ b/png.c
@@ -13,7 +13,7 @@
 #include "png.h"
 
 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef version_1_0_38rc02 Your_png_h_is_not_version_1_0_38rc02;
+typedef version_1_0_38rc03 Your_png_h_is_not_version_1_0_38rc03;
 
 /* Version information for C files.  This had better match the version
  * string defined in png.h.  */
@@ -693,7 +693,7 @@
 png_get_copyright(png_structp png_ptr)
 {
    png_ptr = png_ptr;  /* silence compiler warning about unused png_ptr */
-   return ((png_charp) "\n libpng version 1.0.38rc02 - July 21, 2008\n\
+   return ((png_charp) "\n libpng version 1.0.38rc03 - July 21, 2008\n\
    Copyright (c) 1998-2008 Glenn Randers-Pehrson\n\
    Copyright (c) 1996-1997 Andreas Dilger\n\
    Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.\n");
diff --git a/png.h b/png.h
index 8be0ce7..3a08d3c 100644
--- a/png.h
+++ b/png.h
@@ -1,6 +1,6 @@
 /* png.h - header file for PNG reference library
  *
- * libpng version 1.0.38rc02 - July 21, 2008
+ * libpng version 1.0.38rc03 - July 21, 2008
  * Copyright (c) 1998-2008 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 1.0.38rc02 - July 21, 2008: Glenn
+ *  libpng versions 0.97, January 1998, through 1.0.38rc03 - July 21, 2008: Glenn
  *  See also "Contributing Authors", below.
  *
  * Note about libpng version numbers:
@@ -194,8 +194,8 @@
  *    1.2.29                  13    10229  12.so.0.29[.0]
  *    1.0.37                  10    10037  10.so.0.37[.0]
  *    1.2.30beta01-04         13    10230  12.so.0.30[.0]
- *    1.0.38rc01-02           10    10038  10.so.0.38[.0]
- *    1.2.30rc01-02           13    10230  12.so.0.30[.0]
+ *    1.0.38rc01-03           10    10038  10.so.0.38[.0]
+ *    1.2.30rc01-03           13    10230  12.so.0.30[.0]
  *
  *    Henceforth the source version will match the shared-library major
  *    and minor numbers; the shared-library major version number will be
@@ -225,7 +225,7 @@
  * If you modify libpng you may insert additional notices immediately following
  * this sentence.
  *
- * libpng versions 1.2.6, August 15, 2004, through 1.0.38rc02, July 21, 2008, are
+ * libpng versions 1.2.6, August 15, 2004, through 1.0.38rc03, July 21, 2008, are
  * Copyright (c) 2004, 2006-2008 Glenn Randers-Pehrson, and are
  * distributed according to the same disclaimer and license as libpng-1.2.5
  * with the following individual added to the list of Contributing Authors:
@@ -343,7 +343,7 @@
  *    an official declaration.
  *
  *    This is your unofficial assurance that libpng from version 0.71 and
- *    upward through 1.0.38rc02 are Y2K compliant.  It is my belief that earlier
+ *    upward through 1.0.38rc03 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
@@ -399,9 +399,9 @@
  */
 
 /* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.0.38rc02"
+#define PNG_LIBPNG_VER_STRING "1.0.38rc03"
 #define PNG_HEADER_VERSION_STRING \
-   " libpng version 1.0.38rc02 - July 21, 2008\n"
+   " libpng version 1.0.38rc03 - July 21, 2008\n"
 
 #define PNG_LIBPNG_VER_SONUM   0
 #define PNG_LIBPNG_VER_DLLNUM  10
@@ -413,7 +413,7 @@
 /* This should match the numeric part of the final component of
  * PNG_LIBPNG_VER_STRING, omitting any leading zero: */
 
-#define PNG_LIBPNG_VER_BUILD  02
+#define PNG_LIBPNG_VER_BUILD  03
 
 /* Release Status */
 #define PNG_LIBPNG_BUILD_ALPHA    1
@@ -1458,7 +1458,7 @@
 /* This triggers a compiler error in png.c, if png.c and png.h
  * do not agree upon the version number.
  */
-typedef png_structp version_1_0_38rc02;
+typedef png_structp version_1_0_38rc03;
 
 typedef png_struct FAR * FAR * png_structpp;
 
diff --git a/pngconf.h b/pngconf.h
index 688f22c..e1770d8 100644
--- a/pngconf.h
+++ b/pngconf.h
@@ -1,7 +1,7 @@
 
 /* pngconf.h - machine configurable file for libpng
  *
- * libpng version 1.0.38rc02 - July 21, 2008
+ * libpng version 1.0.38rc03 - July 21, 2008
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2008 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/pngrutil.c b/pngrutil.c
index 9ac0acf..8fccacb 100644
--- a/pngrutil.c
+++ b/pngrutil.c
@@ -1597,7 +1597,6 @@
 void /* PRIVATE */
 png_handle_pCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
 {
-   png_charp purpose;
    png_int_32 X0, X1;
    png_byte type, nparams;
    png_charp buf, units, endptr;
@@ -1624,35 +1623,38 @@
 
    png_debug1(2, "Allocating and reading pCAL chunk data (%lu bytes)\n",
       length + 1);
-   purpose = (png_charp)png_malloc_warn(png_ptr, length + 1);
-   if (purpose == NULL)
+   png_free(png_ptr, png_ptr->chunkdata);
+   png_ptr->chunkdata = (png_charp)png_malloc_warn(png_ptr, length + 1);
+   if (png_ptr->chunkdata == NULL)
      {
        png_warning(png_ptr, "No memory for pCAL purpose.");
        return;
      }
    slength = (png_size_t)length;
-   png_crc_read(png_ptr, (png_bytep)purpose, slength);
+   png_crc_read(png_ptr, (png_bytep)png_ptr->chunkdata, slength);
 
    if (png_crc_finish(png_ptr, 0))
    {
-      png_free(png_ptr, purpose);
+      png_free(png_ptr, png_ptr->chunkdata);
+      png_ptr->chunkdata = NULL;
       return;
    }
 
-   purpose[slength] = 0x00; /* null terminate the last string */
+   png_ptr->chunkdata[slength] = 0x00; /* null terminate the last string */
 
    png_debug(3, "Finding end of pCAL purpose string\n");
-   for (buf = purpose; *buf; buf++)
+   for (buf = png_ptr->chunkdata; *buf; buf++)
       /* empty loop */ ;
 
-   endptr = purpose + slength;
+   endptr = png_ptr->chunkdata + slength;
 
    /* We need to have at least 12 bytes after the purpose string
       in order to get the parameter information. */
    if (endptr <= buf + 12)
    {
       png_warning(png_ptr, "Invalid pCAL data");
-      png_free(png_ptr, purpose);
+      png_free(png_ptr, png_ptr->chunkdata);
+      png_ptr->chunkdata = NULL;
       return;
    }
 
@@ -1672,7 +1674,8 @@
        (type == PNG_EQUATION_HYPERBOLIC && nparams != 4))
    {
       png_warning(png_ptr, "Invalid pCAL parameters for equation type");
-      png_free(png_ptr, purpose);
+      png_free(png_ptr, png_ptr->chunkdata);
+      png_ptr->chunkdata = NULL;
       return;
    }
    else if (type >= PNG_EQUATION_LAST)
@@ -1688,7 +1691,8 @@
       (png_uint_32)(nparams * png_sizeof(png_charp))) ;
    if (params == NULL)
      {
-       png_free(png_ptr, purpose);
+       png_free(png_ptr, png_ptr->chunkdata);
+       png_ptr->chunkdata = NULL;
        png_warning(png_ptr, "No memory for pCAL params.");
        return;
      }
@@ -1706,16 +1710,18 @@
       if (buf > endptr)
       {
          png_warning(png_ptr, "Invalid pCAL data");
-         png_free(png_ptr, purpose);
+         png_free(png_ptr, png_ptr->chunkdata);
+         png_ptr->chunkdata = NULL;
          png_free(png_ptr, params);
          return;
       }
    }
 
-   png_set_pCAL(png_ptr, info_ptr, purpose, X0, X1, type, nparams,
+   png_set_pCAL(png_ptr, info_ptr, png_ptr->chunkdata, X0, X1, type, nparams,
       units, params);
 
-   png_free(png_ptr, purpose);
+   png_free(png_ptr, png_ptr->chunkdata);
+   png_ptr->chunkdata = NULL;
    png_free(png_ptr, params);
 }
 #endif
@@ -1725,7 +1731,7 @@
 void /* PRIVATE */
 png_handle_sCAL(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
 {
-   png_charp buffer, ep;
+   png_charp ep;
 #ifdef PNG_FLOATING_POINT_SUPPORTED
    double width, height;
    png_charp vp;
@@ -1755,24 +1761,25 @@
 
    png_debug1(2, "Allocating and reading sCAL chunk data (%lu bytes)\n",
       length + 1);
-   buffer = (png_charp)png_malloc_warn(png_ptr, length + 1);
-   if (buffer == NULL)
+   png_ptr->chunkdata = (png_charp)png_malloc_warn(png_ptr, length + 1);
+   if (png_ptr->chunkdata == NULL)
    {
       png_warning(png_ptr, "Out of memory while processing sCAL chunk");
       return;
    }
    slength = (png_size_t)length;
-   png_crc_read(png_ptr, (png_bytep)buffer, slength);
+   png_crc_read(png_ptr, (png_bytep)png_ptr->chunkdata, slength);
 
    if (png_crc_finish(png_ptr, 0))
    {
-      png_free(png_ptr, buffer);
+      png_free(png_ptr, png_ptr->chunkdata);
+      png_ptr->chunkdata = NULL;
       return;
    }
 
-   buffer[slength] = 0x00; /* null terminate the last string */
+   png_ptr->chunkdata[slength] = 0x00; /* null terminate the last string */
 
-   ep = buffer + 1;        /* skip unit byte */
+   ep = png_ptr->chunkdata + 1;        /* skip unit byte */
 
 #ifdef PNG_FLOATING_POINT_SUPPORTED
    width = png_strtod(png_ptr, ep, &vp);
@@ -1793,18 +1800,19 @@
 #endif
 #endif
 
-   for (ep = buffer; *ep; ep++)
+   for (ep = png_ptr->chunkdata; *ep; ep++)
       /* empty loop */ ;
    ep++;
 
-   if (buffer + slength < ep)
+   if (png_ptr->chunkdata + slength < ep)
    {
       png_warning(png_ptr, "Truncated sCAL chunk");
 #if defined(PNG_FIXED_POINT_SUPPORTED) && \
     !defined(PNG_FLOATING_POINT_SUPPORTED)
       png_free(png_ptr, swidth);
 #endif
-      png_free(png_ptr, buffer);
+      png_free(png_ptr, png_ptr->chunkdata);
+      png_ptr->chunkdata = NULL;
       return;
    }
 
@@ -1827,14 +1835,15 @@
 #endif
 #endif
 
-   if (buffer + slength < ep
+   if (png_ptr->chunkdata + slength < ep
 #ifdef PNG_FLOATING_POINT_SUPPORTED
       || width <= 0. || height <= 0.
 #endif
       )
    {
       png_warning(png_ptr, "Invalid sCAL data");
-      png_free(png_ptr, buffer);
+      png_free(png_ptr, png_ptr->chunkdata);
+      png_ptr->chunkdata = NULL;
 #if defined(PNG_FIXED_POINT_SUPPORTED) && !defined(PNG_FLOATING_POINT_SUPPORTED)
       png_free(png_ptr, swidth);
       png_free(png_ptr, sheight);
@@ -1844,14 +1853,15 @@
 
 
 #ifdef PNG_FLOATING_POINT_SUPPORTED
-   png_set_sCAL(png_ptr, info_ptr, buffer[0], width, height);
+   png_set_sCAL(png_ptr, info_ptr, png_ptr->chunkdata[0], width, height);
 #else
 #ifdef PNG_FIXED_POINT_SUPPORTED
-   png_set_sCAL_s(png_ptr, info_ptr, buffer[0], swidth, sheight);
+   png_set_sCAL_s(png_ptr, info_ptr, png_ptr->chunkdata[0], swidth, sheight);
 #endif
 #endif
 
-   png_free(png_ptr, buffer);
+   png_free(png_ptr, png_ptr->chunkdata);
+   png_ptr->chunkdata = NULL;
 #if defined(PNG_FIXED_POINT_SUPPORTED) && !defined(PNG_FLOATING_POINT_SUPPORTED)
    png_free(png_ptr, swidth);
    png_free(png_ptr, sheight);
diff --git a/pngtest.c b/pngtest.c
index 430c49d..fa4efcf 100644
--- a/pngtest.c
+++ b/pngtest.c
@@ -1684,4 +1684,4 @@
 }
 
 /* Generate a compiler error if there is an old png.h in the search path. */
-typedef version_1_0_38rc02 your_png_h_is_not_version_1_0_38rc02;
+typedef version_1_0_38rc03 your_png_h_is_not_version_1_0_38rc03;
diff --git a/scripts/CMakeLists.txt b/scripts/CMakeLists.txt
index f5e0777..7e942af 100644
--- a/scripts/CMakeLists.txt
+++ b/scripts/CMakeLists.txt
@@ -169,7 +169,7 @@
 
 # SET UP LINKS
 set_target_properties(${PNG_LIB_NAME} PROPERTIES
-#    VERSION 0.${PNGLIB_RELEASE}.1.0.38rc02
+#    VERSION 0.${PNGLIB_RELEASE}.1.0.38rc03
      VERSION 0.${PNGLIB_RELEASE}.0
      SOVERSION 0
      CLEAN_DIRECT_OUTPUT 1)
diff --git a/scripts/libpng-config-head.in b/scripts/libpng-config-head.in
index 772d8b9..77bb6d0 100755
--- a/scripts/libpng-config-head.in
+++ b/scripts/libpng-config-head.in
@@ -8,7 +8,7 @@
 
 # Modeled after libxml-config.
 
-version=1.0.38rc02
+version=1.0.38rc03
 prefix=""
 libdir=""
 libs=""
diff --git a/scripts/libpng.pc.in b/scripts/libpng.pc.in
index 17d60fd..04791a6 100644
--- a/scripts/libpng.pc.in
+++ b/scripts/libpng.pc.in
@@ -5,6 +5,6 @@
 
 Name: libpng
 Description: Loads and saves PNG files
-Version: 1.0.38rc02
+Version: 1.0.38rc03
 Libs: -L${libdir} -lpng10
 Cflags: -I${includedir}
diff --git a/scripts/makefile.32sunu b/scripts/makefile.32sunu
index 7471812..0219ca3 100644
--- a/scripts/makefile.32sunu
+++ b/scripts/makefile.32sunu
@@ -8,7 +8,7 @@
 # Library name:
 LIBNAME=libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.38rc02
+PNGMIN = 1.0.38rc03
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.64sunu b/scripts/makefile.64sunu
index 23248bd..db07db5 100644
--- a/scripts/makefile.64sunu
+++ b/scripts/makefile.64sunu
@@ -8,7 +8,7 @@
 # Library name:
 LIBNAME=libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.38rc02
+PNGMIN = 1.0.38rc03
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.aix b/scripts/makefile.aix
index f062f80..31c2d6a 100644
--- a/scripts/makefile.aix
+++ b/scripts/makefile.aix
@@ -20,7 +20,7 @@
 
 LIBNAME=libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.38rc02
+PNGMIN = 1.0.38rc03
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 prefix=/usr/local
diff --git a/scripts/makefile.beos b/scripts/makefile.beos
index 1090c9f..ed116ee 100644
--- a/scripts/makefile.beos
+++ b/scripts/makefile.beos
@@ -8,7 +8,7 @@
 # Library name:
 LIBNAME=libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.38rc02
+PNGMIN = 1.0.38rc03
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.cygwin b/scripts/makefile.cygwin
index 736a58e..a505d0f 100644
--- a/scripts/makefile.cygwin
+++ b/scripts/makefile.cygwin
@@ -74,7 +74,7 @@
 LIBNAME = libpng10
 PNGMAJ = 0
 CYGDLL = 10
-PNGMIN = 1.0.38rc02
+PNGMIN = 1.0.38rc03
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 SHAREDLIB=cygpng$(CYGDLL).dll
diff --git a/scripts/makefile.darwin b/scripts/makefile.darwin
index 16c1946..76676b6 100644
--- a/scripts/makefile.darwin
+++ b/scripts/makefile.darwin
@@ -19,7 +19,7 @@
 # Library name:
 LIBNAME = libpng10
 PNGMAJ = 12
-PNGMIN = 1.0.38rc02
+PNGMIN = 1.0.38rc03
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.dec b/scripts/makefile.dec
index e563085..5f1e06a 100644
--- a/scripts/makefile.dec
+++ b/scripts/makefile.dec
@@ -5,7 +5,7 @@
 
 # Library name:
 PNGMAJ = 0
-PNGMIN = 1.0.38rc02
+PNGMIN = 1.0.38rc03
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng10
 
diff --git a/scripts/makefile.elf b/scripts/makefile.elf
index ea0d8a4..91e1bde 100644
--- a/scripts/makefile.elf
+++ b/scripts/makefile.elf
@@ -12,7 +12,7 @@
 # Library name:
 LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.38rc02
+PNGMIN = 1.0.38rc03
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.gcmmx b/scripts/makefile.gcmmx
index 3a1a44f..005af1f 100644
--- a/scripts/makefile.gcmmx
+++ b/scripts/makefile.gcmmx
@@ -14,7 +14,7 @@
 # Library name:
 LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.38rc02
+PNGMIN = 1.0.38rc03
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.hp64 b/scripts/makefile.hp64
index 9d25de1..031deba 100644
--- a/scripts/makefile.hp64
+++ b/scripts/makefile.hp64
@@ -18,7 +18,7 @@
 # Library name:
 LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.38rc02
+PNGMIN = 1.0.38rc03
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.hpgcc b/scripts/makefile.hpgcc
index 6072b68..a1a47c5 100644
--- a/scripts/makefile.hpgcc
+++ b/scripts/makefile.hpgcc
@@ -8,7 +8,7 @@
 # Library name:
 LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.38rc02
+PNGMIN = 1.0.38rc03
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.hpux b/scripts/makefile.hpux
index 282b00c..50fd115 100644
--- a/scripts/makefile.hpux
+++ b/scripts/makefile.hpux
@@ -18,7 +18,7 @@
 # Library name:
 LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.38rc02
+PNGMIN = 1.0.38rc03
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.linux b/scripts/makefile.linux
index 72b16e8..06c69e5 100644
--- a/scripts/makefile.linux
+++ b/scripts/makefile.linux
@@ -6,7 +6,7 @@
 # Library name:
 LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.38rc02
+PNGMIN = 1.0.38rc03
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.mingw b/scripts/makefile.mingw
index 3837729..6ae1590 100644
--- a/scripts/makefile.mingw
+++ b/scripts/makefile.mingw
@@ -74,7 +74,7 @@
 LIBNAME = libpng10
 PNGMAJ = 0
 MINGDLL = 10
-PNGMIN = 1.0.38rc02
+PNGMIN = 1.0.38rc03
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 SHAREDLIB=libpng$(MINGDLL).dll
diff --git a/scripts/makefile.ne12bsd b/scripts/makefile.ne12bsd
index faa1ca7..bfe00c7 100644
--- a/scripts/makefile.ne12bsd
+++ b/scripts/makefile.ne12bsd
@@ -14,7 +14,7 @@
 
 LIB=	png12
 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.0.38rc02
+SHLIB_MINOR=	1.0.38rc03
 SRCS=	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 12ef604..427db61 100644
--- a/scripts/makefile.netbsd
+++ b/scripts/makefile.netbsd
@@ -14,7 +14,7 @@
 
 LIB=	png
 SHLIB_MAJOR=	3
-SHLIB_MINOR=	1.0.38rc02
+SHLIB_MINOR=	1.0.38rc03
 SRCS=	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.nommx b/scripts/makefile.nommx
index 3c5a5a5..d95f0f2 100644
--- a/scripts/makefile.nommx
+++ b/scripts/makefile.nommx
@@ -7,7 +7,7 @@
 # Library name:
 LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.38rc02
+PNGMIN = 1.0.38rc03
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.openbsd b/scripts/makefile.openbsd
index aad9851..8a11642 100644
--- a/scripts/makefile.openbsd
+++ b/scripts/makefile.openbsd
@@ -8,7 +8,7 @@
 MANDIR= ${PREFIX}/man/cat
 
 SHLIB_MAJOR=	0
-SHLIB_MINOR=	1.0.38rc02
+SHLIB_MINOR=	1.0.38rc03
 
 LIB=	png
 SRCS=	png.c pngerror.c pngget.c pngmem.c pngpread.c \
diff --git a/scripts/makefile.sco b/scripts/makefile.sco
index b7cf51e..2f76e63 100644
--- a/scripts/makefile.sco
+++ b/scripts/makefile.sco
@@ -9,7 +9,7 @@
 # Library name:
 LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.38rc02
+PNGMIN = 1.0.38rc03
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.sggcc b/scripts/makefile.sggcc
index 17011f0..73aa52f 100644
--- a/scripts/makefile.sggcc
+++ b/scripts/makefile.sggcc
@@ -6,7 +6,7 @@
 # Library name:
 LIBNAME=libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.38rc02
+PNGMIN = 1.0.38rc03
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.sgi b/scripts/makefile.sgi
index 0a1e774..fac9ff1 100644
--- a/scripts/makefile.sgi
+++ b/scripts/makefile.sgi
@@ -6,7 +6,7 @@
 # Library name:
 LIBNAME=libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.38rc02
+PNGMIN = 1.0.38rc03
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.so9 b/scripts/makefile.so9
index 822cd4a..00e2142 100644
--- a/scripts/makefile.so9
+++ b/scripts/makefile.so9
@@ -8,7 +8,7 @@
 
 # Library name:
 PNGMAJ = 0
-PNGMIN = 1.0.38rc02
+PNGMIN = 1.0.38rc03
 PNGVER = $(PNGMAJ).$(PNGMIN)
 LIBNAME = libpng10
 
diff --git a/scripts/makefile.solaris b/scripts/makefile.solaris
index 95e5980..fbc7df0 100644
--- a/scripts/makefile.solaris
+++ b/scripts/makefile.solaris
@@ -8,7 +8,7 @@
 # Library name:
 LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.38rc02
+PNGMIN = 1.0.38rc03
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/makefile.solaris-x86 b/scripts/makefile.solaris-x86
index 3a0504e..d1aec42 100644
--- a/scripts/makefile.solaris-x86
+++ b/scripts/makefile.solaris-x86
@@ -8,7 +8,7 @@
 # Library name:
 LIBNAME = libpng10
 PNGMAJ = 0
-PNGMIN = 1.0.38rc02
+PNGMIN = 1.0.38rc03
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 # Shared library names:
diff --git a/scripts/pngos2.def b/scripts/pngos2.def
index 1e432bb..f2cb44f 100644
--- a/scripts/pngos2.def
+++ b/scripts/pngos2.def
@@ -2,7 +2,7 @@
 ; PNG.LIB module definition file for OS/2
 ;----------------------------------------
 
-; Version 1.0.38rc02
+; Version 1.0.38rc03
 
 LIBRARY		PNG
 DESCRIPTION	"PNG image compression library for OS/2"
diff --git a/scripts/pngw32.def b/scripts/pngw32.def
index 1a5e4ed..1695a00 100644
--- a/scripts/pngw32.def
+++ b/scripts/pngw32.def
@@ -5,7 +5,7 @@
 LIBRARY
 
 EXPORTS
-;Version 1.0.38rc02
+;Version 1.0.38rc03
   png_build_grayscale_palette  @1
   png_check_sig        @2
   png_chunk_error      @3