Imported from libpng-1.4.0beta31.tar

libpng.3

diff --git a/libpng.3 b/libpng.3
index bf573e0..318dc98 100644
--- a/libpng.3
+++ b/libpng.3
@@ -1,6 +1,6 @@
-.TH LIBPNG 3 "August 14, 2008"
+.TH LIBPNG 3 "August 19, 2008"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0beta30
+libpng \- Portable Network Graphics (PNG) Reference Library 1.4.0beta31
 .SH SYNOPSIS
 \fI\fB
 
@@ -801,7 +801,7 @@
 .SH LIBPNG.TXT
 libpng.txt - A description on how to use and modify libpng
 
- libpng version 1.4.0beta30 - August 14, 2008
+ libpng version 1.4.0beta31 - August 19, 2008
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2005 Glenn Randers-Pehrson
@@ -1632,6 +1632,9 @@
 
     png_set_premultiply_alpha(png_ptr);
 
+If you do this, any input with a tRNS chunk will be expanded to
+have an alpha channel.
+
 PNG files pack pixels of bit depths 1, 2, and 4 into bytes as small as
 they can, resulting in, for example, 8 pixels per byte for 1 bit
 files.  This code expands to 1 pixel per byte without changing the
@@ -3726,13 +3729,13 @@
 
 .SH IX. Y2K Compliance in libpng
 
-August 14, 2008
+August 19, 2008
 
 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 1.4.0beta30 are Y2K compliant.  It is my belief that earlier
+upward through 1.4.0beta31 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
@@ -3899,7 +3902,7 @@
  1.2.12              13    10212  12.so.0.12[.0]
  1.4.0beta9-14       14    10400  14.so.0.0[.0]
  1.2.13              13    10213  12.so.0.13[.0]
- 1.4.0beta15-29      14    10400  14.so.0.0[.0]
+ 1.4.0beta15-31      14    10400  14.so.0.0[.0]
 
 Henceforth the source version will match the shared-library minor
 and patch numbers; the shared-library major version number will be
@@ -3955,7 +3958,7 @@
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
 
-Libpng version 1.4.0beta30 - August 14, 2008:
+Libpng version 1.4.0beta31 - August 19, 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).
 
@@ -3976,7 +3979,7 @@
 If you modify libpng you may insert additional notices immediately following
 this sentence.
 
-libpng versions 1.2.6, August 15, 2004, through 1.4.0beta30, August 14, 2008, are
+libpng versions 1.2.6, August 15, 2004, through 1.4.0beta31, August 19, 2008, are
 Copyright (c) 2004,2006-2007 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
@@ -4075,7 +4078,7 @@
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-August 14, 2008
+August 19, 2008
 
 .\" end of man page