diff --git a/ANNOUNCE b/ANNOUNCE
index 83fa5fd06..16d03005f 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -1,18 +1,19 @@
 
-Libpng 1.0.2a - December 29, 1998
+Libpng 1.0.2b - January 6, 1999
 
 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.
 
 Changes since the last public release:
 
-libpng-1.0.2a:
-
+version 1.0.2a [December 30, 1998]
   Replaced and extended code that was removed from png_set_filler() in 1.0.1a.
   Fixed a bug in png_do_filler() that made it fail to write filler bytes in
     the left-most pixel of each row (Kevin Bracey).
   Changed "static pngcharp tIME_string" to "static char tIME_string[30]"
     in pngtest.c (Duncan Simpson).
+  Fixed a bug in pngtest.c that caused pngtest to try to write a tIME chunk
+    even when no tIME chunk was present in the source file.
   Fixed a problem in pngrutil.c: gray_to_rgb didn't always work with 16-bit.
   Fixed a problem in png_read_push_finish_row(), which would not skip some
     passes that it should skip, for images that are less than 3 pixels high.
@@ -31,6 +32,12 @@ libpng-1.0.2a:
   Removed lines after Dynamic Dependencies" in makefile.aco .
   Revised makefile.dec to make a shared library (Jeremie Petit).
   Removed trailing blanks from all files. 
+version 1.0.2b [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
+  Changed "check_if_png" function in example.c to return true (nonzero) if PNG.
+  Changed libpng.txt to demonstrate png_sig_cmp() instead of png_check_sig()
+    which is obsolete.
 
 Send comments/corrections/commendations to
 png-implement@dworkin.wustl.edu or to randeg@alumni.rpi.edu
diff --git a/CHANGES b/CHANGES
index 05c7c62cc..acdb89b84 100644
--- a/CHANGES
+++ b/CHANGES
@@ -352,12 +352,14 @@ version 1.0.1e [June 6, 1998]
   Added makefile.w32, for Microsoft C++ 4.0 and later (Tim Wegner).
 version 1.0.2 [June 14, 1998]
   Fixed two bugs in makefile.bor .
-version 1.0.2a [December 29, 1998]
+version 1.0.2a [December 30, 1998]
   Replaced and extended code that was removed from png_set_filler() in 1.0.1a.
   Fixed a bug in png_do_filler() that made it fail to write filler bytes in
     the left-most pixel of each row (Kevin Bracey).
   Changed "static pngcharp tIME_string" to "static char tIME_string[30]"
     in pngtest.c (Duncan Simpson).
+  Fixed a bug in pngtest.c that caused pngtest to try to write a tIME chunk
+    even when no tIME chunk was present in the source file.
   Fixed a problem in pngrutil.c: gray_to_rgb didn't always work with 16-bit.
   Fixed a problem in png_read_push_finish_row(), which would not skip some
     passes that it should skip, for images that are less than 3 pixels high.
@@ -376,3 +378,9 @@ version 1.0.2a [December 29, 1998]
   Removed lines after Dynamic Dependencies" in makefile.aco .
   Revised makefile.dec to make a shared library (Jeremie Petit).
   Removed trailing blanks from all files. 
+version 1.0.2b [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
+  Changed "check_if_png" function in example.c to return true (nonzero) if PNG.
+  Changed libpng.txt to demonstrate png_sig_cmp() instead of png_check_sig()
+    which is obsolete.
diff --git a/INSTALL b/INSTALL
index 69151ee2c..15b194d04 100644
--- a/INSTALL
+++ b/INSTALL
@@ -1,5 +1,5 @@
 
-Installing libpng version 1.0.2a - December 29, 1998
+Installing libpng version 1.0.2b - January 6, 1999
 
 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-1.0.2a" or "lpng103" and "zlib-1.1.3"
+might be called "libpng-1.0.2b" or "lpng103" and "zlib-1.1.3"
 or "zlib113") so that you have directories called "zlib" and "libpng".
 
 Your directory structure should look like this:
diff --git a/KNOWNBUG b/KNOWNBUG
index 57c3bb7bd..4b601d31b 100644
--- a/KNOWNBUG
+++ b/KNOWNBUG
@@ -68,6 +68,10 @@ Known bugs and suggested enhancements in libpng-1.0.2
    "static pngcharp tIME_string" should be changed to
    "static char tIME_string[30]" in pngtest.c
 
+   Also -- December 30, 1998 -- there are some misplaced brackets in
+   pngtest.c that cause pngtest to try to write a tIME chunk
+   even when no tIME chunk was present in the source file.
+
    STATUS: Fixed in libpng-1.0.2a
 
 8. August 24, 1998 -- BUG -- John Cromer
diff --git a/README b/README
index 5025c3014..ee3c2d986 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README for libpng 1.0.2a - December 29, 1998 (shared library 2.1)
+README for libpng 1.0.2b - January 6, 1999 (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.
diff --git a/example.c b/example.c
index 2a6d8a081..088aad3a7 100644
--- a/example.c
+++ b/example.c
@@ -15,8 +15,11 @@
 
 #include "png.h"
 
-/* Check to see if a file is a PNG file using png_sig_cmp().  Returns
- * non-zero if the image is a PNG, and 0 if it isn't a PNG.
+/* Check to see if a file is a PNG file using png_sig_cmp().  png_sig_cmp()
+ * returns zero if the image is a PNG and nonzero if it isn't a PNG.
+ *
+ * The function check_if_png() shown here, but not used, returns nonzero (true)
+ * if the file can be opened and is a PNG, 0 (false) otherwise.
  *
  * If this call is successful, and you are going to keep the file open,
  * you should call png_set_sig_bytes(png_ptr, PNG_BYTES_TO_CHECK); once
@@ -41,12 +44,14 @@ int check_if_png(char *file_name, FILE **fp)
    if ((*fp = fopen(file_name, "rb")) != NULL);
       return 0;
 
-   /* Read in the signature bytes */
+   /* Read in some of the signature bytes */
    if (fread(buf, 1, PNG_BYTES_TO_CHECK, *fp) != PNG_BYTES_TO_CHECK)
       return 0;
 
-   /* Compare the first PNG_BYTES_TO_CHECK bytes of the signature. */
-   return(png_sig_cmp(buf, (png_size_t)0, PNG_BYTES_TO_CHECK));
+   /* Compare the first PNG_BYTES_TO_CHECK bytes of the signature.
+      Return nonzero (true) if they match */
+
+   return(!png_sig_cmp(buf, (png_size_t)0, PNG_BYTES_TO_CHECK));
 }
 
 /* Read a PNG file.  You may want to return an error code if the read
diff --git a/libpng.3 b/libpng.3
index 08a4f1b28..3464d5839 100644
--- a/libpng.3
+++ b/libpng.3
@@ -1,6 +1,6 @@
-.TH LIBPNG 3 "December 29, 1998"
+.TH LIBPNG 3 "January 6, 1999"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.0.2a - December 29, 1998
+libpng \- Portable Network Graphics (PNG) Reference Library 1.0.2b - January 6, 1999
 .SH SYNOPSIS
 
 #include <png.h>
@@ -423,10 +423,10 @@ 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 1.0.2a - December 29, 1998
+ libpng version 1.0.2b - January 6, 1999
  Updated and distributed by Glenn Randers-Pehrson
  <randeg@alumni.rpi.edu>
- Copyright (c) 1998, Glenn Randers-Pehrson
+ Copyright (c) 1998, 1999, Glenn Randers-Pehrson
  For conditions of distribution and use, see copyright
  notice in png.h.
 
@@ -552,7 +552,7 @@ Customizing libpng.
         return;
     }
     fread(header, 1, number, fp);
-    is_png = png_check_sig(header, 0, number);
+    is_png = !png_sig_cmp(header, 0, number);
     if (!is_png)
     {
         return;
@@ -2522,7 +2522,7 @@ possible without all of you.
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
   
-Libpng version 1.0.2a - December 29, 1998:
+Libpng version 1.0.2b - January 6, 1999:
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (randeg@alumni.rpi.edu).
 
@@ -2532,6 +2532,10 @@ Supported by the PNG development group
 
 .SH COPYRIGHT NOTICE:
 
+Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
+Copyright (c) 1996, 1997 Andreas Dilger
+Copyright (c) 1998, 1999, Glenn Randers-Pehrson
+
 The PNG Reference Library (libpng) is supplied "AS IS".  The Contributing
 Authors and Group 42, Inc. disclaim all warranties, expressed or implied,
 including, without limitation, the warranties of merchantability and of
diff --git a/libpng.txt b/libpng.txt
index d2567837a..d52fc99db 100644
--- a/libpng.txt
+++ b/libpng.txt
@@ -1,9 +1,9 @@
 libpng.txt - A description on how to use and modify libpng
 
- libpng version 1.0.2a - December 29, 1998
+ libpng version 1.0.2b - January 6, 1999
  Updated and distributed by Glenn Randers-Pehrson
  <randeg@alumni.rpi.edu>
- Copyright (c) 1998, Glenn Randers-Pehrson
+ Copyright (c) 1998, 1999, Glenn Randers-Pehrson
  For conditions of distribution and use, see copyright
  notice in png.h.
 
@@ -129,7 +129,7 @@ Customizing libpng.
         return;
     }
     fread(header, 1, number, fp);
-    is_png = png_check_sig(header, 0, number);
+    is_png = !png_sig_cmp(header, 0, number);
     if (!is_png)
     {
         return;
diff --git a/libpngpf.3 b/libpngpf.3
index a7c205cb4..4fb69157e 100644
--- a/libpngpf.3
+++ b/libpngpf.3
@@ -1,6 +1,6 @@
-.TH LIBPNGPF 3 "December 29, 1998"
+.TH LIBPNGPF 3 "January 6, 1999"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.0.2a - December 29, 1998
+libpng \- Portable Network Graphics (PNG) Reference Library 1.0.2b - January 6, 1999
 (private functions)
 .SH SYNOPSIS
 #include <png.h>
diff --git a/png.5 b/png.5
index 58596d8f0..b04195660 100644
--- a/png.5
+++ b/png.5
@@ -1,4 +1,4 @@
-.TH PNG 5 "December 29, 1998"
+.TH PNG 5 "January 6, 1999"
 .SH NAME
 png \- Portable Network Graphics (PNG) format
 .SH DESCRIPTION
diff --git a/png.c b/png.c
index 4cd142911..acab1cf68 100644
--- a/png.c
+++ b/png.c
@@ -1,10 +1,10 @@
 
 /* png.c - location for general purpose libpng functions
  *
- * libpng version 1.0.2a - December 29, 1998
+ * libpng version 1.0.2b - January 6, 1999
  * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
  * Copyright (c) 1996, 1997 Andreas Dilger
- * Copyright (c) 1998, Glenn Randers-Pehrson
+ * Copyright (c) 1998, 1999, Glenn Randers-Pehrson
  * 
  */
 
@@ -16,7 +16,7 @@
  * string defined in png.h.
  */
 
-char png_libpng_ver[12] = "1.0.2a";
+char png_libpng_ver[12] = "1.0.2b";
 
 /* Place to hold the signature string for a PNG file. */
 png_byte FARDATA png_sig[8] = {137, 80, 78, 71, 13, 10, 26, 10};
@@ -115,8 +115,8 @@ png_sig_cmp(png_bytep sig, png_size_t start, png_size_t num_to_check)
 }
 
 /* (Obsolete) function to check signature bytes.  It does not allow one
- * to check a partial signature.  This function will be removed in the
- * future - use png_sig_cmp().
+ * to check a partial signature.  This function might be removed in the
+ * future - use png_sig_cmp().  Returns true (nonzero) if the file is a PNG.
  */
 int
 png_check_sig(png_bytep sig, int num)
@@ -350,9 +350,10 @@ png_convert_to_rfc1123(png_structp png_ptr, png_timep ptime)
 png_charp
 png_get_copyright(png_structp png_ptr)
 {
-   return("\n libpng version 1.0.2a - December 29, 1998\n\
+   if(png_ptr == NULL)
+     /* silence compiler warning about unused png_ptr */ ;
+   return("\n libpng version 1.0.2b - January 6, 1999\n\
    Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.\n\
    Copyright (c) 1996, 1997 Andreas Dilger\n\
-   Copyright (c) 1998, Glenn Randers-Pehrson\n");
+   Copyright (c) 1998, 1999, Glenn Randers-Pehrson\n");
 }
-
diff --git a/png.h b/png.h
index 93b55c903..b1298f5c7 100644
--- a/png.h
+++ b/png.h
@@ -1,10 +1,10 @@
 
 /* png.h - header file for PNG reference library
  *
- * libpng version 1.0.2a - December 29, 1998
+ * libpng version 1.0.2b - January 6, 1999
  * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
  * Copyright (c) 1996, 1997 Andreas Dilger
- * Copyright (c) 1998, Glenn Randers-Pehrson
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
  *
  * Note about libpng version numbers:
  *
@@ -119,7 +119,7 @@ extern "C" {
  */
 
 /* Version information for png.h - this should match the version in png.c */
-#define PNG_LIBPNG_VER_STRING "1.0.2a"
+#define PNG_LIBPNG_VER_STRING "1.0.2b"
 
 /* Careful here.  At one time, Guy wanted to use 082, but that would be octal.
  * We must not include leading zeros.
@@ -1490,12 +1490,16 @@ extern PNG_EXPORT(void,png_set_tRNS) PNGARG((png_structp png_ptr,
 #endif
 
 extern PNG_EXPORT(png_charp,png_get_copyright) PNGARG((png_structp png_ptr));
-#ifdef PNG_NO_EXTERN
 extern PNG_EXPORT(png_charp,png_get_header_version) PNGARG((png_structp png_ptr));
+
+#ifdef PNG_NO_EXTERN
+/* this only gets included in png.c */
 png_charp
 png_get_header_version(png_structp png_ptr)
 {
-   return("\n libpng version 1.0.2a - December 29, 1998 (header)\n");
+   if(png_ptr == NULL)
+     /* silence compiler warning about unused png_ptr */ ;
+   return("\n libpng version 1.0.2b - January 6, 1999 (header)\n");
 }
 #endif
 
@@ -2160,16 +2164,11 @@ PNG_EXTERN void png_push_read_zTXt PNGARG((png_structp png_ptr,
 
 #endif /* PNG_PROGRESSIVE_READ_SUPPORTED */
 
-#endif
- 
-
 #endif /* PNG_INTERNAL */
 
 #ifdef __cplusplus
 }
 #endif
 
-#ifdef PNG_NO_EXTERN
-
 /* do not put anything past this line */
 #endif /* _PNG_H */
diff --git a/pngconf.h b/pngconf.h
index e7ef28aa5..a19d8faf4 100644
--- a/pngconf.h
+++ b/pngconf.h
@@ -1,11 +1,11 @@
 
 /* pngconf.h - machine configurable file for libpng
  *
- * libpng 1.0.2a - December 29, 1998
+ * libpng 1.0.2b - January 6, 1999
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
  * Copyright (c) 1996, 1997 Andreas Dilger
- * Copyright (c) 1998, Glenn Randers-Pehrson
+ * Copyright (c) 1998, 1999, Glenn Randers-Pehrson
  */
 
 /* Any machine specific code is near the front of this file, so if you
diff --git a/pngerror.c b/pngerror.c
index ebbb0dcdd..34a3e7b6e 100644
--- a/pngerror.c
+++ b/pngerror.c
@@ -1,11 +1,11 @@
 
 /* pngerror.c - stub functions for i/o and memory allocation
  *
- * libpng 1.0.2a - December 29, 1998
+ * libpng 1.0.2b - January 6, 1999
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
  * Copyright (c) 1996, 1997 Andreas Dilger
- * Copyright (c) 1998, Glenn Randers-Pehrson
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
  *
  * This file provides a location for all error handling.  Users who
  * need special error handling are expected to write replacement functions
@@ -136,12 +136,11 @@ png_default_error(png_structp png_ptr, png_const_charp message)
 static void
 png_default_warning(png_structp png_ptr, png_const_charp message)
 {
-   if (png_ptr == NULL)
-      return;
-
 #ifndef PNG_NO_CONSOLE_IO
    fprintf(stderr, "libpng warning: %s\n", message);
 #endif
+   if (png_ptr == NULL)
+      return;
 }
 
 /* This function is called when the application wants to use another method
diff --git a/pngget.c b/pngget.c
index bb6fc3bff..7128f00b8 100644
--- a/pngget.c
+++ b/pngget.c
@@ -1,11 +1,11 @@
 
 /* pngget.c - retrieval of values from info struct
  *
- * libpng 1.0.2a - December 29, 1998
+ * libpng 1.0.2b - January 6, 1999
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
  * Copyright (c) 1996, 1997 Andreas Dilger
- * Copyright (c) 1998, Glenn Randers-Pehrson
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
  */
 
 #define PNG_INTERNAL
diff --git a/pngmem.c b/pngmem.c
index b472e54d8..73ca2548e 100644
--- a/pngmem.c
+++ b/pngmem.c
@@ -1,11 +1,11 @@
 
 /* pngmem.c - stub functions for memory allocation
  *
- * libpng 1.0.2a - December 29, 1998
+ * libpng 1.0.2b - January 6, 1999
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
  * Copyright (c) 1996, 1997 Andreas Dilger
- * Copyright (c) 1998, Glenn Randers-Pehrson
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
  *
  * This file provides a location for all memory allocation.  Users who
  * need special memory handling are expected to supply replacement
diff --git a/pngpread.c b/pngpread.c
index abf1dcb4d..23476e90c 100644
--- a/pngpread.c
+++ b/pngpread.c
@@ -1,11 +1,11 @@
 
 /* pngpread.c - read a png file in push mode
  *
- * libpng 1.0.2a - December 29, 1998
+ * libpng 1.0.2b - January 6, 1999
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
  * Copyright (c) 1996, 1997 Andreas Dilger
- * Copyright (c) 1998, Glenn Randers-Pehrson
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
  */
 
 #define PNG_INTERNAL
diff --git a/pngread.c b/pngread.c
index 597d9d522..14f8e53c2 100644
--- a/pngread.c
+++ b/pngread.c
@@ -1,11 +1,11 @@
 
 /* pngread.c - read a PNG file
  *
- * libpng 1.0.2a - December 29, 1998
+ * libpng 1.0.2b - January 6, 1999
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
  * Copyright (c) 1996, 1997 Andreas Dilger
- * Copyright (c) 1998, Glenn Randers-Pehrson
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
  *
  * This file contains routines that an application calls directly to
  * read a PNG file or stream.
@@ -530,7 +530,7 @@ 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 1.0.2a.
+ * [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.2b.
  */
 
 void
@@ -579,7 +579,7 @@ 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 1.0.2a.
+ * [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.2b.
  */
 void
 png_read_image(png_structp png_ptr, png_bytepp image)
diff --git a/pngrio.c b/pngrio.c
index a916b8c8f..665cb0c2c 100644
--- a/pngrio.c
+++ b/pngrio.c
@@ -1,11 +1,11 @@
 
 /* pngrio.c - functions for data input
  *
- * libpng 1.0.2a - December 29, 1998
+ * libpng 1.0.2b - January 6, 1999
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
  * Copyright (c) 1996, 1997 Andreas Dilger
- * Copyright (c) 1998, Glenn Randers-Pehrson
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
  *
  * This file provides a location for all input.  Users who need
  * special handling are expected to write a function that has the same
diff --git a/pngrtran.c b/pngrtran.c
index fd4ec22bb..296bd1467 100644
--- a/pngrtran.c
+++ b/pngrtran.c
@@ -1,11 +1,11 @@
 
 /* pngrtran.c - transforms the data in a row for PNG readers
  *
- * libpng 1.0.2a - December 29, 1998
+ * libpng 1.0.2b - January 6, 1999
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
  * Copyright (c) 1996, 1997 Andreas Dilger
- * Copyright (c) 1998, Glenn Randers-Pehrson
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
  *
  * This file contains functions optionally called by an application
  * in order to tell libpng how to handle data when reading a PNG.
diff --git a/pngrutil.c b/pngrutil.c
index 880ab54e7..4d71fef70 100644
--- a/pngrutil.c
+++ b/pngrutil.c
@@ -1,11 +1,11 @@
 
 /* pngrutil.c - utilities to read a PNG file
  *
- * libpng 1.0.2a - December 29, 1998
+ * libpng 1.0.2b - January 6, 1999
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
  * Copyright (c) 1996, 1997 Andreas Dilger
- * Copyright (c) 1998, Glenn Randers-Pehrson
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
  *
  * This file contains routines that are only called from within
  * libpng itself during the course of reading an image.
diff --git a/pngset.c b/pngset.c
index 4a1f19699..cf1462689 100644
--- a/pngset.c
+++ b/pngset.c
@@ -1,11 +1,11 @@
 
 /* pngset.c - storage of image information into info struct
  *
- * libpng 1.0.2a - December 29, 1998
+ * libpng 1.0.2b - January 6, 1999
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
  * Copyright (c) 1996, 1997 Andreas Dilger
- * Copyright (c) 1998, Glenn Randers-Pehrson
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
  *
  * The functions here are used during reads to store data from the file
  * into the info struct, and during writes to store application data
diff --git a/pngtest.c b/pngtest.c
index e4300d691..55b31dfa1 100644
--- a/pngtest.c
+++ b/pngtest.c
@@ -1,11 +1,11 @@
 
 /* pngtest.c - a simple test program to test libpng
  *
- * libpng 1.0.2a -December 29, 1998
+ * libpng 1.0.2b -January 6, 1999
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
  * Copyright (c) 1996, 1997 Andreas Dilger
- * Copyright (c) 1998, Glenn Randers-Pehrson
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
  *
  * This program reads in a PNG image, writes it out again, and then
  * compares the two files.  If the files are identical, this shows that
@@ -735,16 +735,14 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
       if (png_get_tIME(read_ptr, read_info_ptr, &mod_time))
       {
          png_set_tIME(write_ptr, write_info_ptr, mod_time);
-      }
 #if defined(PNG_TIME_RFC1123_SUPPORTED)
-      {
          /* we have to use png_strcpy instead of "=" because the string
             pointed to by png_convert_to_rfc1123() gets free'ed before
             we use it */
          png_strcpy(tIME_string,png_convert_to_rfc1123(read_ptr, mod_time));
          tIME_chunk_present++;
-      }
 #endif /* PNG_TIME_RFC1123_SUPPORTED */
+      }
    }
 #endif
 #if defined(PNG_READ_tRNS_SUPPORTED) && defined(PNG_WRITE_tRNS_SUPPORTED)
diff --git a/pngtrans.c b/pngtrans.c
index f8abd4491..beb7ab0bc 100644
--- a/pngtrans.c
+++ b/pngtrans.c
@@ -1,11 +1,11 @@
 
 /* pngtrans.c - transforms the data in a row (used by both readers and writers)
  *
- * libpng 1.0.2a - December 29, 1998
+ * libpng 1.0.2b - January 6, 1999
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
  * Copyright (c) 1996, 1997 Andreas Dilger
- * Copyright (c) 1998, Glenn Randers-Pehrson
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
  */
 
 #define PNG_INTERNAL
diff --git a/pngwio.c b/pngwio.c
index 2d3243b0d..63e5e3cac 100644
--- a/pngwio.c
+++ b/pngwio.c
@@ -1,11 +1,11 @@
 
 /* pngwio.c - functions for data output
  *
- * libpng 1.0.2a - December 29, 1998
+ * libpng 1.0.2b - January 6, 1999
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
  * Copyright (c) 1996, 1997 Andreas Dilger
- * Copyright (c) 1998, Glenn Randers-Pehrson
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
  *
  * This file provides a location for all output.  Users who need
  * special handling are expected to write functions that have the same
diff --git a/pngwrite.c b/pngwrite.c
index 5966c9bed..2618e10c7 100644
--- a/pngwrite.c
+++ b/pngwrite.c
@@ -1,11 +1,11 @@
 
 /* pngwrite.c - general routines to write a PNG file
  *
- * libpng 1.0.2a - December 29, 1998
+ * libpng 1.0.2b - January 6, 1999
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
  * Copyright (c) 1996, 1997 Andreas Dilger
- * Copyright (c) 1998, Glenn Randers-Pehrson
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
  */
 
 /* get internal access to png.h */
diff --git a/pngwtran.c b/pngwtran.c
index d14c659a6..45a94063f 100644
--- a/pngwtran.c
+++ b/pngwtran.c
@@ -1,11 +1,11 @@
 
 /* pngwtran.c - transforms the data in a row for PNG writers
  *
- * libpng 1.0.2a - December 29, 1998
+ * libpng 1.0.2b - January 6, 1999
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
  * Copyright (c) 1996, 1997 Andreas Dilger
- * Copyright (c) 1998, Glenn Randers-Pehrson
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
  */
 
 #define PNG_INTERNAL
diff --git a/pngwutil.c b/pngwutil.c
index ea078f6f8..f257b5e32 100644
--- a/pngwutil.c
+++ b/pngwutil.c
@@ -1,11 +1,11 @@
 
 /* pngwutil.c - utilities to write a PNG file
  *
- * libpng 1.0.2a - December 29, 1998
+ * libpng 1.0.2b - January 6, 1999
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
  * Copyright (c) 1996, 1997 Andreas Dilger
- * Copyright (c) 1998, Glenn Randers-Pehrson
+ * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
  */
 
 #define PNG_INTERNAL
diff --git a/scripts/makefile.dec b/scripts/makefile.dec
index 0fb800af7..d5cbc8be2 100644
--- a/scripts/makefile.dec
+++ b/scripts/makefile.dec
@@ -14,7 +14,7 @@ ZLIBINC=../zlib
 # read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
 # have to change it.
 PNGMAJ = 2
-PNGMIN = 1.0.2a
+PNGMIN = 1.0.2b
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 CC=cc
diff --git a/scripts/makefile.lnx b/scripts/makefile.lnx
index c070cf974..c85d9e20c 100644
--- a/scripts/makefile.lnx
+++ b/scripts/makefile.lnx
@@ -32,7 +32,7 @@ RANLIB=ranlib
 # read libpng.txt or png.h to see why PNGMAJ is 2.  You should not
 # have to change it.
 PNGMAJ = 2
-PNGMIN = 1.0.2a
+PNGMIN = 1.0.2b
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 INCPATH=$(prefix)/include
diff --git a/scripts/makefile.s2x b/scripts/makefile.s2x
index 3b3989737..8c3aa9b5b 100644
--- a/scripts/makefile.s2x
+++ b/scripts/makefile.s2x
@@ -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 = 1.0.2a
+PNGMIN = 1.0.2b
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 INCPATH=$(prefix)/include
diff --git a/scripts/makefile.sco b/scripts/makefile.sco
index c6913e204..ca70185b4 100644
--- a/scripts/makefile.sco
+++ b/scripts/makefile.sco
@@ -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 = 1.0.2a
+PNGMIN = 1.0.2b
 PNGVER = $(PNGMAJ).$(PNGMIN)
 
 INCPATH=$(prefix)/include
diff --git a/scripts/pngdef.pas b/scripts/pngdef.pas
index 92ddb8a0f..d0e9d4d2a 100644
--- a/scripts/pngdef.pas
+++ b/scripts/pngdef.pas
@@ -3,7 +3,7 @@ unit pngdef;
 interface
 
 const
-  PNG_LIBPNG_VER_STRING = '1.0.2a';
+  PNG_LIBPNG_VER_STRING = '1.0.2b';
   PNG_LIBPNG_VER        =  10001;
 
 type