Imported from libpng-1.0.10rc1.tar
diff --git a/png.h b/png.h
index 193f167..50a26aa 100644
--- a/png.h
+++ b/png.h
@@ -1,7 +1,7 @@
 
 /* png.h - header file for PNG reference library
  *
- * libpng version 1.0.10beta1 - March 14, 2001
+ * libpng version 1.0.10rc1 - March 23, 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.)
@@ -9,7 +9,7 @@
  * 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 1.0.10beta1 - March 14, 2001: Glenn
+ *  libpng versions 0.97, January 1998, through 1.0.10rc1 - March 23, 2001: Glenn
  *  See also "Contributing Authors", below.
  *
  * Note about libpng version numbers:
@@ -65,6 +65,7 @@
  *    1.0.9rc2                 1    10009  2.1.0.9rc2
  *    1.0.9                    1    10009  2.1.0.9
  *    1.0.10beta1              1    10010  2.1.0.10beta1
+ *    1.0.10rc1                1    10010  2.1.0.10rc1
  *
  *    Henceforth the source version will match the shared-library major
  *    and minor numbers; the shared-library major version number will be
@@ -94,7 +95,7 @@
  * If you modify libpng you may insert additional notices immediately following
  * this sentence.
  *
- * libpng versions 1.0.7, July 1, 2000, through  1.0.10beta1, March 14, 2001, are
+ * libpng versions 1.0.7, July 1, 2000, through  1.0.10rc1, March 23, 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
@@ -199,13 +200,13 @@
  * Y2K compliance in libpng:
  * =========================
  *
- *    March 14, 2001
+ *    March 23, 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 1.0.10beta1 are Y2K compliant.  It is my belief that earlier
+ *    upward through 1.0.10rc1 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
@@ -261,7 +262,7 @@
  */
 
 /* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.0.10beta1"
+#define PNG_LIBPNG_VER_STRING "1.0.10rc1"
 
 #define PNG_LIBPNG_VER_SONUM   2
 #define PNG_LIBPNG_VER_DLLNUM  %DLLNUM%
@@ -281,7 +282,7 @@
 #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 2
+#define PNG_LIBPNG_BUILD_TYPE 3
 
 /* Careful here.  At one time, Guy wanted to use 082, but that would be octal.
  * We must not include leading zeros.
@@ -1182,9 +1183,9 @@
 
 
 /* This prevents a compiler error in png_get_copyright() in png.c if png.c
-and png.h are both at * version 1.0.10beta1
+and png.h are both at * version 1.0.10rc1
  */
-typedef png_structp version_1_0_10beta1;
+typedef png_structp version_1_0_10rc1;
 
 typedef png_struct FAR * FAR * png_structpp;
 
@@ -2232,7 +2233,7 @@
 /* Maintainer: Put new public prototypes here ^, in libpng.3, and project defs */
 
 #define PNG_HEADER_VERSION_STRING \
-   " libpng version 1.0.10beta1 - March 14, 2001 (header)\n"
+   " libpng version 1.0.10rc1 - March 23, 2001 (header)\n"
 
 #ifdef PNG_READ_COMPOSITE_NODIV_SUPPORTED
 /* With these routines we avoid an integer divide, which will be slower on