[libpng16] Imported from libpng-1.6.31beta03.tar
diff --git a/LICENSE b/LICENSE
index cc8d0d2..a569ef3 100644
--- a/LICENSE
+++ b/LICENSE
@@ -10,7 +10,7 @@
 
 This code is released under the libpng license.
 
-libpng versions 1.0.7, July 1, 2000 through 1.6.31beta03, July 8, 2017 are
+libpng versions 1.0.7, July 1, 2000 through 1.6.31beta03, July 9, 2017 are
 Copyright (c) 2000-2002, 2004, 2006-2017 Glenn Randers-Pehrson, are
 derived from libpng-1.0.6, and are distributed according to the same
 disclaimer and license as libpng-1.0.6 with the following individuals
diff --git a/README b/README
index 5fa8bc9..5af7035 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README for libpng version 1.6.31beta03 - July 8, 2017 (shared library 16.0)
+README for libpng version 1.6.31beta03 - July 9, 2017 (shared library 16.0)
 See the note about version numbers near the top of png.h
 
 See INSTALL for instructions on how to install libpng.
diff --git a/libpng-manual.txt b/libpng-manual.txt
index 3fc9735..d4a29b1 100644
--- a/libpng-manual.txt
+++ b/libpng-manual.txt
@@ -1,6 +1,6 @@
 libpng-manual.txt - A description on how to use and modify libpng
 
- libpng version 1.6.31beta03 - July 8, 2017
+ libpng version 1.6.31beta03 - July 9, 2017
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2017 Glenn Randers-Pehrson
@@ -11,7 +11,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.6.31beta03 - July 8, 2017
+ libpng versions 0.97, January 1998, through 1.6.31beta03 - July 9, 2017
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2017 Glenn Randers-Pehrson
 
diff --git a/libpng.3 b/libpng.3
index 5b0b8a3..d7c5a08 100644
--- a/libpng.3
+++ b/libpng.3
@@ -1,4 +1,4 @@
-.TH LIBPNG 3 "July 8, 2017"
+.TH LIBPNG 3 "July 9, 2017"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.6.31beta03
 .SH SYNOPSIS
@@ -510,7 +510,7 @@
 .SH LIBPNG.TXT
 libpng-manual.txt - A description on how to use and modify libpng
 
- libpng version 1.6.31beta03 - July 8, 2017
+ libpng version 1.6.31beta03 - July 9, 2017
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2017 Glenn Randers-Pehrson
@@ -521,7 +521,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.6.31beta03 - July 8, 2017
+ libpng versions 0.97, January 1998, through 1.6.31beta03 - July 9, 2017
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2017 Glenn Randers-Pehrson
 
@@ -6056,7 +6056,7 @@
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
 
-Libpng version 1.6.31beta03 - July 8, 2017:
+Libpng version 1.6.31beta03 - July 9, 2017:
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
 
@@ -6081,7 +6081,7 @@
 
 This code is released under the libpng license.
 
-libpng versions 1.0.7, July 1, 2000 through 1.6.31beta03, July 8, 2017 are
+libpng versions 1.0.7, July 1, 2000 through 1.6.31beta03, July 9, 2017 are
 Copyright (c) 2000-2002, 2004, 2006-2017 Glenn Randers-Pehrson, are
 derived from libpng-1.0.6, and are distributed according to the same
 disclaimer and license as libpng-1.0.6 with the following individuals
@@ -6209,7 +6209,7 @@
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-July 8, 2017
+July 9, 2017
 
 .\" end of man page
 
diff --git a/png.c b/png.c
index f45d71a..a8dfd48 100644
--- a/png.c
+++ b/png.c
@@ -776,14 +776,14 @@
 #else
 #  ifdef __STDC__
    return PNG_STRING_NEWLINE \
-      "libpng version 1.6.31beta03 - July 8, 2017" PNG_STRING_NEWLINE \
+      "libpng version 1.6.31beta03 - July 9, 2017" PNG_STRING_NEWLINE \
       "Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson" \
       PNG_STRING_NEWLINE \
       "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
       "Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
       PNG_STRING_NEWLINE;
 #  else
-   return "libpng version 1.6.31beta03 - July 8, 2017\
+   return "libpng version 1.6.31beta03 - July 9, 2017\
       Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson\
       Copyright (c) 1996-1997 Andreas Dilger\
       Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";
diff --git a/png.h b/png.h
index 8594cb7..9248263 100644
--- a/png.h
+++ b/png.h
@@ -1,7 +1,7 @@
 
 /* png.h - header file for PNG reference library
  *
- * libpng version 1.6.31beta03, July 8, 2017
+ * libpng version 1.6.31beta03, July 9, 2017
  *
  * Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -12,7 +12,7 @@
  * Authors and maintainers:
  *   libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
  *   libpng versions 0.89, June 1996, through 0.96, May 1997: Andreas Dilger
- *   libpng versions 0.97, January 1998, through 1.6.31beta03, July 8, 2017:
+ *   libpng versions 0.97, January 1998, through 1.6.31beta03, July 9, 2017:
  *     Glenn Randers-Pehrson.
  *   See also "Contributing Authors", below.
  */
@@ -25,7 +25,7 @@
  *
  * This code is released under the libpng license.
  *
- * libpng versions 1.0.7, July 1, 2000 through 1.6.31beta03, July 8, 2017 are
+ * libpng versions 1.0.7, July 1, 2000 through 1.6.31beta03, July 9, 2017 are
  * Copyright (c) 2000-2002, 2004, 2006-2017 Glenn Randers-Pehrson, are
  * derived from libpng-1.0.6, and are distributed according to the same
  * disclaimer and license as libpng-1.0.6 with the following individuals
@@ -241,7 +241,7 @@
  * Y2K compliance in libpng:
  * =========================
  *
- *    July 8, 2017
+ *    July 9, 2017
  *
  *    Since the PNG Development group is an ad-hoc body, we can't make
  *    an official declaration.
@@ -310,7 +310,7 @@
 
 /* Version information for png.h - this should match the version in png.c */
 #define PNG_LIBPNG_VER_STRING "1.6.31beta03"
-#define PNG_HEADER_VERSION_STRING " libpng version 1.6.31beta03 - July 8, 2017\n"
+#define PNG_HEADER_VERSION_STRING " libpng version 1.6.31beta03 - July 9, 2017\n"
 
 #define PNG_LIBPNG_VER_SONUM   16
 #define PNG_LIBPNG_VER_DLLNUM  16
diff --git a/pngconf.h b/pngconf.h
index b779b97..62a17a5 100644
--- a/pngconf.h
+++ b/pngconf.h
@@ -1,7 +1,7 @@
 
 /* pngconf.h - machine configurable file for libpng
  *
- * libpng version 1.6.31beta03, July 8, 2017
+ * libpng version 1.6.31beta03, July 9, 2017
  *
  * Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/projects/vstudio/README.txt b/projects/vstudio/README.txt
index 3347b00..ac0ac60 100644
--- a/projects/vstudio/README.txt
+++ b/projects/vstudio/README.txt
@@ -1,7 +1,7 @@
 
 VisualStudio instructions
 
-libpng version 1.6.31beta03 - July 8, 2017
+libpng version 1.6.31beta03 - July 9, 2017
 
 Copyright (c) 2010,2013,2015 Glenn Randers-Pehrson
 
diff --git a/projects/vstudio/zlib.props b/projects/vstudio/zlib.props
index 98e9dea..97a23f8 100644
--- a/projects/vstudio/zlib.props
+++ b/projects/vstudio/zlib.props
@@ -2,7 +2,7 @@
 <!--
  * zlib.props - location of zlib source
  *
- * libpng version 1.6.31beta03 - July 8, 2017
+ * libpng version 1.6.31beta03 - July 9, 2017
  *
  * Copyright (c) 1998-2011 Glenn Randers-Pehrson
  *
diff --git a/scripts/README.txt b/scripts/README.txt
index cd02933..03dad18 100644
--- a/scripts/README.txt
+++ b/scripts/README.txt
@@ -1,9 +1,11 @@
 
-Makefiles for  libpng version 1.6.31beta03 - July 8, 2017
+Makefiles for  libpng version 1.6.31beta03 - July 9, 2017
 
 pnglibconf.h.prebuilt       =>  Stores configuration settings
  makefile.linux    =>  Linux/ELF makefile
                        (gcc, creates libpng16.so.16.1.6.31beta03)
+ makefile.linux-opt=>  Linux/ELF makefile with hardware optimizations on
+                       (gcc, creates libpng16.so.16.1.6.31beta03)
  makefile.gcc      =>  Generic makefile (gcc, creates static libpng.a)
  makefile.knr      =>  Archaic UNIX Makefile that converts files with
                        ansi2knr (Requires ansi2knr.c from
diff --git a/scripts/makefile.cegcc b/scripts/makefile.cegcc
index 6043845..ef17dab 100644
--- a/scripts/makefile.cegcc
+++ b/scripts/makefile.cegcc
@@ -23,7 +23,7 @@
 
 VERMAJ = 1
 VERMIN = 6
-VERMIC = 30
+VERMIC = 31
 VER = $(VERMAJ).$(VERMIN).$(VERMIC)
 NAME = libpng
 PACKAGE = $(NAME)-$(VER)
diff --git a/scripts/makefile.linux b/scripts/makefile.linux
index f3f9550..aeaf666 100644
--- a/scripts/makefile.linux
+++ b/scripts/makefile.linux
@@ -9,8 +9,8 @@
 
 # Library name:
 LIBNAME = libpng16
-PNGMAJ = 16
-RELEASE = 30
+PNGMAJ = 1
+RELEASE = 31
 
 # Shared library names:
 LIBSO=$(LIBNAME).so
diff --git a/scripts/makefile.msys b/scripts/makefile.msys
index c603673..960a540 100644
--- a/scripts/makefile.msys
+++ b/scripts/makefile.msys
@@ -17,8 +17,8 @@
 
 # Library name:
 LIBNAME = libpng16
-PNGMAJ = 16
-RELEASE = 30
+PNGMAJ = 1
+RELEASE = 31
 
 # Shared library names:
 LIBSO=$(LIBNAME).dll
diff --git a/scripts/pnglibconf.h.prebuilt b/scripts/pnglibconf.h.prebuilt
index 3c16f52..8959e65 100644
--- a/scripts/pnglibconf.h.prebuilt
+++ b/scripts/pnglibconf.h.prebuilt
@@ -2,7 +2,7 @@
 
 /* pnglibconf.h - library build configuration */
 
-/* Libpng version 1.6.31beta03 - July 8, 2017 */
+/* Libpng version 1.6.31beta03 - July 9, 2017 */
 
 /* Copyright (c) 1998-2017 Glenn Randers-Pehrson */